WO2020082755A1 - Electric drive axle assembly system having two horizontally placed motors and gear shift control method - Google Patents

Electric drive axle assembly system having two horizontally placed motors and gear shift control method Download PDF

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Publication number
WO2020082755A1
WO2020082755A1 PCT/CN2019/090943 CN2019090943W WO2020082755A1 WO 2020082755 A1 WO2020082755 A1 WO 2020082755A1 CN 2019090943 W CN2019090943 W CN 2019090943W WO 2020082755 A1 WO2020082755 A1 WO 2020082755A1
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WO
WIPO (PCT)
Prior art keywords
gear
input shaft
shaft
drive motor
differential
Prior art date
Application number
PCT/CN2019/090943
Other languages
French (fr)
Chinese (zh)
Inventor
李占江
高超
蒋元广
任钢
彭凯歌
Original Assignee
南京越博动力***股份有限公司
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Application filed by 南京越博动力***股份有限公司 filed Critical 南京越博动力***股份有限公司
Publication of WO2020082755A1 publication Critical patent/WO2020082755A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/12—Torque-transmitting axles
    • B60B35/14—Torque-transmitting axles composite or split, e.g. half- axles; Couplings between axle parts or sections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
    • B60K17/08—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
    • B60K17/165—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing provided between independent half axles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L7/00—Electrodynamic brake systems for vehicles in general
    • B60L7/10—Dynamic electric regenerative braking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H48/00—Differential gearings
    • F16H48/12—Differential gearings without gears having orbital motion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/68—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings
    • F16H61/684—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings without interruption of drive
    • F16H61/688—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for stepped gearings without interruption of drive with two inputs, e.g. selection of one of two torque-flow paths by clutches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/70—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for change-speed gearing in group arrangement, i.e. with separate change-speed gear trains arranged in series, e.g. range or overdrive-type gearing arrangements
    • F16H61/702—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for change-speed gearing in group arrangement, i.e. with separate change-speed gear trains arranged in series, e.g. range or overdrive-type gearing arrangements using electric or electrohydraulic control means

Definitions

  • the present application belongs to the technical field of electric vehicles, and particularly relates to a dual-motor transverse electric drive axle assembly system and a shift control method.
  • the pure electric drive systems that are widely used in the market include multi-speed transmissions and traditional drive systems with clutches, multi-speed transmissions and drive systems without clutches; two independent drive motors and fixed gears with drive shafts Transmission device; drive motor and first-stage reducer transmission device.
  • the patent application with publication number CN108501765A provides an electric vehicle shift control method, device and vehicle, wherein the method includes: detecting the vehicle speed; when the vehicle speed is greater than the predetermined vehicle speed, if the gear lever is switched from the forward gear to the reverse gear, then Control the vehicle to coast, where the predetermined speed is greater than 0 km / h; until the vehicle speed drops to the predetermined speed, control the gear state to the first intermediate state to control the vehicle to output negative torque; when the vehicle speed is zero, control the gear state Switch from the first intermediate state to the reverse gear state.
  • the patent application with the publication number CN108501717A provides a method and device for shift control of an automobile, wherein the method includes: monitoring a gear shifting instruction of the automobile in a driving state; when the gear shifting instruction is to switch from the N gear to a preset Gear, and the gear switching instruction is the first gear switching instruction obtained after the car is powered on, or before receiving the gear switching instruction, the car is in the N gear and the vehicle speed is kept less than the preset
  • the speed value exceeds the first set duration it is monitored whether the brake pedal signal is acquired within the second set duration; when the brake pedal signal is acquired within the second set duration, the control gear is shifted from N to Switch to the preset gear, and maintain the N gear when the brake pedal signal is not acquired within the second set duration.
  • the traditional drive system of the multi-speed transmission and clutch has better acceleration, but there is power interruption when shifting; the multi-speed transmission and the drive system without clutch have high transmission efficiency and no power interruption; drive motor It can realize stepless speed change with the first-level reducer transmission, but the acceleration and climbing ability are poor, so that the efficiency of the drive motor is not fully exerted.
  • cars have different power requirements in the acceleration driving phase, low speed driving phase and high speed driving phase. If a single motor is used to drive, it is difficult for the motor to work in the high-efficiency operation area all the time, which is easy to cause waste of electric energy.
  • the purpose of the present application is to provide a dual-motor transverse electric drive axle assembly system and a shift control method that can overcome the above technical problems.
  • the system described in this application includes: drive motor I, input shaft I, input shaft gear I, adapter sleeve I, countershaft, countershaft gear I, countershaft gear II, countershaft gear III, triaxial gear, adapter sleeve II, Input shaft gear II, drive motor II, input shaft II, three shafts, drive half shaft, differential, differential gear, drive wheels, spline connection A, spline connection B.
  • the input shaft gear I and the intermediate shaft gear I form a first gear group, the input shaft gear II and the intermediate shaft gear III form a second gear group; the intermediate shaft gear II and the three shaft gear form a reduction gear group, and the three shaft gear It forms a reduction gear set with the differential gear; in which the input shaft gear I is sleeved on the input shaft I, the intermediate shaft gear I, the intermediate shaft gear II, and the intermediate shaft gear III are fixedly connected to the intermediate shaft, and the three shaft gears are fixedly connected to On the three shafts, the differential gear is fixedly connected to the differential housing; the coupling sleeve I is fixedly connected to the input shaft I and can be connected to the input shaft gears I and three between the input shaft gear I and the three shaft gear The shaft gear is combined or separated.
  • the coupling sleeve II is fixedly connected to the input shaft II and can be combined or separated with the input shaft gear II and the three-axis gear between the input shaft gear II and the three-axis gear.
  • the shift control method of the system described in this application is to provide the transmission with three gears through the output of the driving motor I and the driving motor II.
  • the transmission can realize the conversion of three gears, and the three gears are respectively dual motors Low speed gear, single motor medium speed gear, dual motor high speed gear; the method described in this application includes the following steps:
  • Step 1 The dual-motor low-speed gear becomes the dual-motor high-speed gear:
  • Step 1.1 Transition from dual-motor low-speed gear to drive motor I working alone in low-speed gear, coupling sleeve I is combined with input shaft gear I to make input shaft gear I and input shaft I fixedly connected, the power transmission route is: driven motor I
  • the output power is driven by the output shaft of drive motor I, input shaft I, adapter sleeve I, input shaft gear I, countershaft gear I, countershaft, countershaft gear II, triaxial gear, differential gear, differential ⁇ Drive half axle, and finally transfer to the wheel;
  • Step 1.2 Transition from drive motor I working in low speed gear to drive motor I and drive motor II working in low speed gear at the same time, adjust the speed of drive motor II and match the speed of drive motor II to the speed of intermediate shaft and drive motor I
  • the coupling sleeve II is combined with the input shaft gear II, so that the input shaft gear II and the input shaft II are fixedly connected, and the driving motor I and the driving motor II are matched to the same rotation speed of the intermediate shaft and the same direction;
  • the transmission route is: from the output power of the drive motor I, through the output shaft of the drive motor I, the input shaft I, the coupling sleeve I, the input shaft gear I, the intermediate shaft gear I, the intermediate shaft, the intermediate shaft gear II, the three-axis gear, Differential gears, differentials, drive axles, and finally transmitted to the wheels; the power output by the drive motor II, the output shaft of the drive motor II, the transmission input shaft II, the coupling sleeve II,
  • Step 1.3 The transition from driving motor I and driving motor II working in low speed gear to driving motor II working in low speed gear separately, coupling sleeve I is separated from input shaft gear I, the power transmission route is: the power output by driving motor II , Via the output shaft, input shaft II, coupling sleeve II, input shaft gear II, intermediate shaft gear III, intermediate shaft, intermediate shaft gear II, triaxial gear, differential gear, differential, drive half of the drive motor II The shaft, and finally to the wheel;
  • Step 1.4 Transition from drive motor II to low-speed gear to mid-range of dual motor, adjust the speed of drive motor I.
  • the speed of drive motor I matches the speed of three-axis gear and the speed of drive motor II is transferred to the three-axis gear
  • the coupling sleeve I is combined with the three-axis gear
  • the input shaft I is fixedly connected with the three-axis gear
  • the power transmission route is: the power output by the drive motor I, the output shaft of the drive motor I, the input shaft I, the coupling sleeve I , Three-axis gears, differential gears, differentials, drive axles, and finally transmitted to the wheels;
  • Step 1.5 The transition from the dual-motor intermediate gear to the drive motor I works alone in the high-speed gear.
  • the coupling sleeve II is separated from the input shaft gear II.
  • the power transmission route is: the power output by the drive motor I.
  • Step 1.6 Transition from drive motor I to high-speed gear alone, and adjust the speed of drive motor II.
  • the speed of drive motor II is the same as the speed of drive motor I and the direction is the same, joint sleeve II and three-axis gear Combine to make the three-axis gear fixedly connected with the input shaft II.
  • the power transmission route is: the power output by the drive motor I, the output shaft of the drive motor I, the transmission input shaft I, the coupling sleeve I, the three-axis gear, and the differential Gears, differentials, drive axles, and finally transmitted to the wheels; the power output by the drive motor II, the output shaft of the drive motor II, the transmission input shaft II, the coupling sleeve II, the three-axis gear, the differential gear , Differential, drive axle, and finally to the wheels.
  • Step 2 Change from dual-motor high-speed gear to dual-motor low-speed gear:
  • Step 2.1 Transition from dual-motor high-speed gear to drive motor I working alone in high-speed gear: the coupling sleeve II is separated from the three-axis gear, and the power transmission route is: the power output by the drive motor I, the output shaft of the drive motor I, the speed change Box input shaft I, coupling sleeve I, three-axis gear, differential gear, differential, drive half shaft, and finally transmitted to the wheel;
  • Step 2.2 Transition from drive motor I to high-speed gear alone to double-motor intermediate gear: adjust the speed of drive motor II, when the speed of drive motor II matches the speed of the three-axis gear and the speed of drive motor I to the three-axis gear When they are the same, the coupling sleeve II is combined with the input shaft gear II to make the input shaft gear II and the input shaft II fixedly connected.
  • the driving motor I and the driving motor II are matched to the same speed of the three-axis gear and the same direction;
  • the power transmission route is:
  • the power output by the drive motor I is transmitted to the wheels through the output shaft of the drive motor I, the input shaft I of the gearbox, the coupling sleeve I, the three-axis gear, the differential gear, the differential, the drive half shaft, and finally to the wheels;
  • the power output by the motor II is driven by the output shaft of the drive motor II, the gearbox input shaft II, the coupling sleeve II, the input shaft gear II, the intermediate shaft gear III, the intermediate shaft, the intermediate shaft gear II, the triaxial gear, and the differential gear , Differential, drive axle, and finally to the wheel;
  • Step 2.3 Transition from dual-motor intermediate gear to drive motor II working alone in low-speed gear: the coupling sleeve I is separated from the three-axis gear, and the power transmission route is: the power output by the drive motor II, the output shaft of the drive motor II, the speed change Box input shaft II, coupling sleeve II, input shaft gear II, intermediate shaft gear III, intermediate shaft, intermediate shaft gear II, three-axis gear, differential gear, differential, drive axle, and finally to the wheel;
  • Step 2.4 Transition from the drive motor II working alone in the low speed gear to the drive motor I and the drive motor II working in the low speed gear at the same time: adjust the speed of the drive motor I, when the speed of the drive motor I matches the speed of the countershaft gear and the drive motor When the speed of transmission to the intermediate shaft is the same, the coupling sleeve I is combined with the input shaft gear I to make the input shaft gear I and the input shaft I fixedly connected.
  • the power transmission route is: from the output power of the drive motor I, through the drive motor I Output shaft, input shaft I, adapter sleeve I, input shaft gear I, intermediate shaft gear I, intermediate shaft, intermediate shaft gear II, three-axis gear, differential gear, differential, drive axle, and finally transmitted to the wheel ;
  • the gears, differentials, and drive axles are finally transmitted to the wheels.
  • Step 3 Control in reverse gear mode, the drive motor I works in low speed gear, the coupling sleeve I is combined with the input shaft gear I, the input shaft gear I is fixedly connected to the input shaft; the power transmission route is: the power output by the drive motor I , Via the output shaft of drive motor I, input shaft I, coupling sleeve I, input shaft gear I, intermediate shaft gear I, intermediate shaft, intermediate shaft gear II, three shaft gear, differential gear, differential, drive half The shaft finally passes to the wheel.
  • Step 4 Brake control in each gear mode:
  • Step 4.1 When the car is driving in the dual-motor low-speed gear mode, step on the brake pedal to brake.
  • the power transmission route is: the input power passes through the wheel, the drive half shaft, the differential, and the differential gear in turn , Three-shaft gear, intermediate shaft gear II, intermediate shaft, intermediate shaft gear I, input shaft gear I, coupling sleeve I, input shaft I, and finally drive the drive motor I to generate electricity, and then pass the wheels, drive half shaft, differential , Differential gear, three-shaft gear, intermediate shaft gear II, intermediate shaft, intermediate shaft gear III, input shaft gear II, coupling sleeve II, input shaft II, and finally drive the drive motor II to generate electricity; when the battery is full, Change to mechanical brake;
  • Step 4.2 When the car is driving in the dual-motor mid-gear mode, step on the brake pedal to brake.
  • the power transmission route is: the input power is sequentially passed through the wheels, the drive half shaft, the differential, and the differential gear. , Three-axis gear, coupling sleeve I, input shaft I, and finally drive the drive motor I to generate electricity, and then through the wheels, drive half shaft, differential, differential gear, three-axis gear, intermediate shaft gear II, intermediate shaft, Intermediate shaft gear III, input shaft gear II, coupling sleeve II, input shaft II, and finally drive the drive motor II to generate electricity; when the battery is full, change to mechanical brake;
  • Step 4.3 When the car is driving in the dual-motor high-speed gear mode, step on the brake pedal to brake, the power transmission route is: the input power is in turn through the wheel, the drive axle, the differential, the differential gear, the third Shaft gear, coupling sleeve I, input shaft I, and finally drive the motor I to generate electricity, and then through the wheels, drive half shaft, differential, differential gear, three-axis gear, coupling sleeve II, input shaft II, and finally drag Drive the motor II to generate electricity; when the battery is full, change to mechanical braking.
  • the Drive motor I working in low-speed gear, the coupling sleeve I is combined with the input shaft gear I, so that the input shaft gear I and the input shaft I are fixedly connected.
  • the power transmission route is: the power output by the drive motor I, the output shaft of the drive motor I, the gearbox input shaft I, the coupling sleeve I, the input shaft gear I, the intermediate shaft gear I, the intermediate shaft, the intermediate shaft gear II, three Axle gears, differential gears, differentials, drive axles, and finally to the wheels.
  • Drive motor II working in low-speed gear, coupling sleeve II and input shaft gear II are combined, so that input shaft gear II and input shaft II are fixedly connected.
  • the power transmission route is: the power output by the drive motor II, via the output shaft of the drive motor II, the gearbox input shaft II, the coupling sleeve II, the input shaft gear II, the intermediate shaft gear III, the intermediate shaft, the intermediate shaft gear II, three Axle gears, differential gears, differentials, drive axles, and finally to the wheels.
  • Drive motor I working in high-speed gear, the coupling sleeve I is combined with the three-axis gear, so that the three-axis gear is fixedly connected to the input shaft I;
  • the power transmission route is: the power output by the drive motor I, the output shaft of the drive motor I,
  • Drive motor II working in low speed gear, coupling sleeve II and input shaft gear II are combined to make input shaft gear II and input shaft II fixedly connected;
  • the power transmission route is: the power output by drive motor II, the output of drive motor II Shaft, gearbox input shaft II, adapter sleeve II, input shaft gear II, intermediate shaft gear III, intermediate shaft, intermediate shaft gear II, three-axis gear, differential gear, differential, drive half shaft, and finally to the transmission To the wheel.
  • Drive motor I working in high-speed gear, the coupling sleeve I is combined with the three-axis gear, so that the three-axis gear is fixedly connected to the input shaft I;
  • the power transmission route is: the power output by the drive motor I, the output shaft of the drive motor I,
  • Drive motor II working in high-speed gear, the coupling sleeve II and the three-axis gear are combined to make the three-axis gear fixedly connected with the input shaft II;
  • the power transmission route is: the power output by the drive motor II, the output shaft of the drive motor
  • the drive motor, gearbox and drive axle system are highly integrated, and the transmission components of the transmission shaft and the universal joint are eliminated, thereby forming a vehicle control system, which has the characteristics of high integration of the system and less space occupation.
  • the transmission is equipped with 3 gears, which can reasonably allocate power output, save power, achieve the effect of energy saving and environmental protection, and the power will not be interrupted when shifting.
  • the dual-motor drive is adopted to enable the car to work in the high-efficiency operating area through the switching between the single-motor drive and the dual-motor drive regardless of whether it is in accelerated, low-speed or high-speed conditions, thereby avoiding the waste of electrical energy. .
  • the motor I can rotate in forward and reverse directions. When reversing, the first gear motor I can be reversed to achieve reverse driving, and the motor II can not work.
  • Braking energy recovery during braking that is, the output end is the original input end, that is, the motor; the input end is the original output end, that is, the speed of the wheel, and the motor changes from the driving state to the power generation state, and the energy goes from the wheel to the motor.
  • the drive motor and gearbox are arranged in parallel with the integrated drive axle, effectively reducing the center of gravity of the car.
  • the system described in this application has a simple structure, high integration, high reliability and can achieve the purpose of light weight.
  • the application improves acceleration and climbing ability and shifts smoothly, and can ensure that power is not interrupted, and can convert the kinetic energy generated by the vehicle during braking into part of electric energy, which can save part of the electric energy loss, thereby reducing the battery cost.
  • FIG. 2 is a schematic diagram of the drive motor I of the present application working alone in a low-speed gear mode
  • FIG. 3 is a schematic diagram of the dual-motor low-speed gear mode of the present application.
  • FIG. 6 is a schematic diagram of the drive motor I of this application working alone in a high-speed gear mode
  • FIG. 10 is a schematic diagram of the dual-motor medium-speed gear braking mode of the present application.
  • FIG. 11 is a schematic diagram of the dual motor working high-speed gear braking mode of this application.
  • 13-input shaft II 14-three shaft; 15-drive half shaft; 16-differential; 17-differential gear;
  • the system described in this application includes: a drive motor I1, an input shaft I2, an input shaft gear I3, a coupling sleeve I4, an intermediate shaft 5, an intermediate shaft gear I6, an intermediate shaft gear II7, an intermediate shaft gear III8, three Axle gear 9, coupling sleeve II 10, input shaft gear II 11, drive motor II 12, input shaft II 13, triaxial 14, drive half shaft 15, differential 16, differential gear 17, drive wheels 18, spline connection A, Spline connection B.
  • the input shaft gear I3 and the intermediate shaft gear I6 form a first-speed gear group
  • the input shaft II13 gear 11 and the intermediate shaft gear III8 form a second-speed gear group
  • the intermediate shaft gear II7 and the three-axis gear 9 form a reduction gear group, which consists of three
  • the shaft gear 9 and the differential gear 17 form a reduction gear set; in which the input shaft gear I3 is empty sleeved on the input shaft I2, the intermediate shaft gear I6, the intermediate shaft gear II7, and the intermediate shaft gear III8 are fixedly connected to the intermediate shaft 5, three
  • the shaft gear 9 is fixedly connected to the three shafts 14 and the differential gear 17 is fixedly connected to the housing of the differential 16;
  • the coupling sleeve I4 is fixedly connected to the input shaft I2 and between the input shaft gear I3 and the three shaft gear 9 It can be combined with or separated from the input shaft gear I3 and the three-shaft gear 9.
  • the coupling sleeve II10 is fixedly connected to the input shaft
  • the shift control method of the system described in this application is to provide the transmission with three gears through the output of the driving motor I1 and the driving motor II12.
  • the transmission can realize the conversion of three gears, and the three gears are respectively dual motors Low speed gear, single motor medium speed gear, dual motor high speed gear; the method described in this application includes the following steps:
  • Step 1 The dual-motor low-speed gear becomes the dual-motor high-speed gear:
  • Step 1.1 As shown in Fig. 2, the transition from the low speed gear of the dual motor to the drive motor I1 works alone in the low speed gear, the coupling sleeve I4 is combined with the input shaft gear I3, so that the input shaft gear I3 is fixedly connected to the input shaft I2, and the power transmission route For: the power output by the drive motor I1, via the output shaft of the drive motor I1, input shaft I2, adapter sleeve I4, input shaft gear I3, intermediate shaft gear I6, intermediate shaft 5, intermediate shaft gear II7, three shaft gear 9, The differential gear 17, the differential 16, the drive half shaft 15, and finally transmitted to the wheels;
  • Step 1.2 transition from drive motor I1 working alone in low speed to drive motor I1 and drive motor II12 working in low speed at the same time, adjust the speed of drive motor II12 and match the speed of drive motor II12 to the intermediate shaft
  • the coupling sleeve II10 is combined with the input shaft gear II11, so that the input shaft gear II11 and the input shaft II13 are fixedly connected, and the drive motor I1 and the drive motor II12 are matched to the intermediate shaft 5 has the same speed and the same direction
  • the power transmission route is: from the output power of the drive motor I1, through the output shaft of the drive motor I1, the input shaft I2, the coupling sleeve I4, the input shaft gear I3, the intermediate shaft gear I6, the intermediate shaft 5 , Countershaft gear II7, triaxial gear 9, differential gear 17, differential 16, drive half shaft 15, and finally transmitted to the wheels; the power output by the drive motor II12, through the output shaft of the
  • Step 1.3 As shown in FIG. 4, the transition from the driving motor I1 and the driving motor II12 to work at low speed gear simultaneously to the driving motor II12 to work at low speed gear alone, the coupling sleeve I4 is separated from the input shaft gear I3, the power transmission route is:
  • the power output by the drive motor II12 passes through the output shaft of the drive motor II12, the input shaft II13, the coupling sleeve II10, the input shaft gear II11, the intermediate shaft gear III8, the intermediate shaft 5, the intermediate shaft gear II7, the three-axis gear 9, and the differential Gear 17, differential 16, drive half shaft 15, and finally to the wheels;
  • Step 1.4 As shown in FIG. 5, transition from the driving motor II12 to low-speed gear to the dual-motor intermediate gear, adjust the speed of the driving motor I1, when the speed of the driving motor I1 matches the speed of the three-axis gear 9 and the driving motor II12
  • the coupling sleeve I4 When the rotation speed transmitted to the three-axis gear 9 is the same, the coupling sleeve I4 is combined with the three-axis gear 9, the input shaft I2 is fixedly connected to the three-axis gear 9, the power transmission route is: the power output by the drive motor I1, after the drive motor I1 Output shaft, input shaft I2, coupling sleeve I4, three-axis gear 9, differential gear 17, differential 16, drive half shaft 15 and finally transmitted to the wheels; the power output by the drive motor II12 passes through the drive motor II12 Output shaft, gearbox input shaft II13, adapter sleeve II10, input shaft II13 gear 11, intermediate shaft gear III8, intermediate shaft 5, intermediate shaft gear II7, three shaft gear 9, differential gear 17,
  • Step 1.5 As shown in FIG. 6, the transition from the dual-motor intermediate gear to the drive motor I1 works alone in the high-speed gear.
  • the coupling sleeve II10 is separated from the input shaft gear II11.
  • the power transmission route is: the power output by the drive motor I1 is driven by The output shaft of the motor I1, the input shaft I2 of the gearbox, the coupling sleeve I4, the three-shaft gear 9, the differential gear 17, the differential 16, the drive half shaft 15 and finally transmitted to the wheels;
  • Step 1.6 As shown in FIG. 7, transition from the driving motor I1 working alone in the high-speed gear to the dual-motor high-speed gear, adjust the speed of the driving motor II12, and when the speed of the driving motor II12 is the same as the speed of the driving motor I1 and the direction is the same, engage The sleeve II10 is combined with the three-shaft gear 9 to make the three-shaft gear 9 fixedly connected to the input shaft II13.
  • the power transmission route is: the power output by the drive motor I1, the output shaft of the drive motor I1, the gearbox input shaft I2, and the coupling sleeve I4 , Three-axis gear 9, differential gear 17, differential 16, drive half shaft 15, and finally transmitted to the wheels; the power output by the drive motor II12, via the output shaft of the drive motor II12, the gearbox input shaft II13, The coupling sleeve II 10, the three-axle gear 9, the differential gear 17, the differential 16, and the drive half shaft 15 are finally transmitted to the wheels.
  • Step 2 Change from dual-motor high-speed gear to dual-motor low-speed gear:
  • Step 2.1 Transition from dual-motor high-speed gear to drive motor I1 working alone in high-speed gear: the coupling sleeve II 10 is separated from the three-axis gear 9, the power transmission route is: the power output by the drive motor I1, via the output shaft of the drive motor I1, Gearbox input shaft I2, adapter sleeve I4, three-axis gear 9, differential gear 17, differential 16, drive half shaft 15, and finally to the wheel;
  • Step 2.2 Transition from drive motor I1 to high-speed gear alone to double-motor intermediate gear: adjust the speed of drive motor II12.
  • the speed of drive motor II12 matches the speed of three-axis gear 9 and the transmission of drive motor I1 to three-axis gear 9
  • the coupling sleeve II10 is combined with the input shaft gear II11, so that the input shaft gear II11 and the input shaft II13 are fixedly connected, the drive motor I1 and the drive motor II12 are matched to the same speed of the three-axis gear 9, and the direction is the same; the power transmission route For: the power output by the drive motor I1, via the output shaft of the drive motor I1, the gearbox input shaft I2, the coupling sleeve I4, the three-axis gear 9, the differential gear 17, the differential 16, the drive half shaft 15, and finally To the wheels; the power output by the drive motor II12, via the output shaft of the drive motor II12, the gearbox input shaft II13, the coupling sleeve II10, the input shaft II
  • Step 2.3 Transition from dual-motor intermediate gear to drive motor II12 working alone in low-speed gear: coupling sleeve I4 is separated from triaxial gear 9, the power transmission route is: the power output from drive motor II12, via the output shaft of drive motor II12, Gearbox input shaft II13, adapter sleeve II10, input shaft II13 gear 11, intermediate shaft gear III8, intermediate shaft 5, intermediate shaft gear II7, three shaft gear 9, differential gear 17, differential 16, drive half shaft 15 , And finally passed to the wheel;
  • Step 2.4 Transition from the drive motor II12 working alone in the low speed gear to the drive motor I1 and the drive motor II12 working in the low speed gear at the same time: adjust the speed of the drive motor I1, when the speed of the drive motor I1 matches the speed of the intermediate shaft 5 gear and
  • the coupling sleeve I4 is combined with the input shaft gear I3, so that the input shaft gear I3 is fixedly connected to the input shaft I2, and the power transmission route is: the output power of the drive motor I11 is driven by Output shaft of motor I1, input shaft I2, adapter sleeve I4, input shaft gear I3, intermediate shaft gear I6, intermediate shaft 5, intermediate shaft gear II 7, triaxial gear 9, differential gear 17, differential 16, drive
  • the half shaft 15 is finally transmitted to the wheels; the power output by the drive motor II12 passes through the output shaft of the drive motor II12, the transmission input shaft II13, the coupling sleeve II10, the input shaft gear II11, the countershaft gear
  • Step 3 Control in reverse gear mode, as shown in Figure 8, the drive motor I1 works in low speed gear, the coupling sleeve I4 is combined with the input shaft gear I3, the input shaft gear I3 is fixedly connected to the input shaft; the power transmission route is: The power output by the drive motor I1, via the output shaft of the drive motor I1, the input shaft I2, the coupling sleeve I4, the input shaft gear I3, the intermediate shaft gear I6, the intermediate shaft 5, the intermediate shaft gear II7, the triaxial gear 9, the differential The gear 17, the differential 16, the drive axle 15 are finally transmitted to the wheels.
  • Step 4 The braking control in each gear mode is shown in Figure 9:
  • Step 4.1 When the car is driving in the dual-motor low-speed gear mode, step on the brake pedal to brake.
  • the power transmission route is: the input power passes through the wheel, the drive half shaft 15, the differential 16, and the differential Gear 17, three-shaft gear 9, intermediate shaft gear II7, intermediate shaft 5, intermediate shaft gear I6, input shaft gear I3, coupling sleeve I4, input shaft I2, and finally drive the drive motor I1 to generate electricity, and then through the wheel, drive half Shaft 15, differential 16, differential gear 17, triaxial gear 9, intermediate shaft gear II7, intermediate shaft 5, intermediate shaft gear III8, input shaft gear II11, coupling sleeve II10, input shaft II13, and finally drive Motor II12 generates electricity; when the battery is full, change to mechanical brake;
  • Step 4.2 As shown in FIG. 10, when the car is driving in the dual-motor mid-range mode, step on the brake pedal to brake.
  • the power transmission route is: the input power is sequentially passed through the wheel, the drive half shaft 15, and the difference The speed changer 16, the differential gear 17, the three-axis gear 9, the coupling sleeve I4, the input shaft I2, and finally drive the drive motor I1 to generate electricity, and then pass the wheels, drive half shaft 15, differential 16, differential gear 17 , Three-axis gear 9, intermediate shaft gear II7, intermediate shaft 5, intermediate shaft gear III8, input shaft gear II11, coupling sleeve II10, input shaft II13, and finally drive the drive motor II12 to generate electricity; when the battery is full, change to mechanical brake;
  • Step 4.3 As shown in FIG. 11, when the car is driving in the dual-motor high-speed gear mode, step on the brake pedal to brake, the power transmission route is: the input power is sequentially passed through the wheels, the drive half shaft 15, the differential 16. Differential gear 17, three-shaft gear 9, coupling sleeve I4, input shaft I2, and finally drive the drive motor I1 to generate electricity, and then pass the wheel, drive half shaft 15, differential 16, differential gear 17, three Shaft gear 9, coupling sleeve II 10, input shaft II 13, and finally drive the motor II 12 to generate electricity; when the battery is full, change to mechanical brake.

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Abstract

The present application discloses an electric drive axle assembly system having two horizontally placed motors and a gear shift control method. The system comprises: a driving motor I, an input shaft I, an input shaft gear I, an engaging sleeve I, an intermediate shaft, an intermediate shaft gear I, an intermediate shaft gear II, an intermediate shaft gear III, a three-shaft gear, an engaging sleeve II, an input shaft gear II, a driving motor II, an input shaft II, three shafts, a driving axle shaft, a differential, a differential gear, a driving wheel, a splined joint A, and a splined joint B. The method comprises the following steps: step 1 of shifting from a two-motor low-speed gear to a two-motor high-speed gear; step 2 of shifting from the two-motor high-speed gear to a two-motor low-speed gear; step 3 of performing control in a reverse gear mode; and step 4 of performing brake control in all gear modes. The present application has the advantages of appropriately distributing power output, conserving power, conserving energy, being environmentally friendly, and avoiding wastage of electricity, thereby reducing battery costs.

Description

一种双电机横置电驱动桥总成***及换挡控制方法Dual-motor transverse electric drive axle assembly system and shift control method
相关申请的交叉引用Cross-reference of related applications
本申请基于申请号为201811237925.2，申请日为2018年10月23日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。This application is based on the Chinese patent application with the application number 201811237925.2 and the application date is October 23, 2018, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby incorporated by reference.
技术领域Technical field
本申请属于电动汽车技术领域，尤其涉及一种双电机横置电驱动桥总成***及换挡控制方法。The present application belongs to the technical field of electric vehicles, and particularly relates to a dual-motor transverse electric drive axle assembly system and a shift control method.
背景技术Background technique
目前，市场应用较多的纯电动驱动***包括多挡传动装置和带离合器的传统驱动***、多挡传动装置和不带离合器的驱动***；两个独立的驱动电机和带有驱动轴的固定挡传动装置；驱动电机和一级减速器传动装置。At present, the pure electric drive systems that are widely used in the market include multi-speed transmissions and traditional drive systems with clutches, multi-speed transmissions and drive systems without clutches; two independent drive motors and fixed gears with drive shafts Transmission device; drive motor and first-stage reducer transmission device.
公开号为CN108501765A的专利申请提供了一种电动汽车的换挡控制方法、装置及车辆，其中，方法包括：检测车速；当车速大于预定车速时，如果挡杆由前进挡切换至倒车挡，则控制车辆进行滑行，其中，预定车速大于0千米/小时；直至车速下降到预定车速时控制挡位状态至第一中间状态，以控制车辆输出负扭矩；当车速为零时，控制挡位状态由第一中间状态转入倒车挡状态。The patent application with publication number CN108501765A provides an electric vehicle shift control method, device and vehicle, wherein the method includes: detecting the vehicle speed; when the vehicle speed is greater than the predetermined vehicle speed, if the gear lever is switched from the forward gear to the reverse gear, then Control the vehicle to coast, where the predetermined speed is greater than 0 km / h; until the vehicle speed drops to the predetermined speed, control the gear state to the first intermediate state to control the vehicle to output negative torque; when the vehicle speed is zero, control the gear state Switch from the first intermediate state to the reverse gear state.
公开号为CN108501717A的专利申请提供了一种汽车换挡控制方法及装置，其中方法包括：监测汽车在驾驶状态下的挡位切换指令；当所述挡位切换指令为从N挡切换至预设挡位，且所述挡位切换指令为所述汽车上电后获取的第一个挡位切换指令，或者在接收所述挡位切换指令之前，所述汽车处于N挡且保持车速小于预设速度值超过第一设定时长时，则监测在第二设定时长内是否获取到制动踏板信号；当在第二设定时长内获取到制动踏板信号时，则控制挡位由N挡切换至所述预设挡位，当在第二设定时长内未获取到制动踏板信号时保持为N挡。The patent application with the publication number CN108501717A provides a method and device for shift control of an automobile, wherein the method includes: monitoring a gear shifting instruction of the automobile in a driving state; when the gear shifting instruction is to switch from the N gear to a preset Gear, and the gear switching instruction is the first gear switching instruction obtained after the car is powered on, or before receiving the gear switching instruction, the car is in the N gear and the vehicle speed is kept less than the preset When the speed value exceeds the first set duration, it is monitored whether the brake pedal signal is acquired within the second set duration; when the brake pedal signal is acquired within the second set duration, the control gear is shifted from N to Switch to the preset gear, and maintain the N gear when the brake pedal signal is not acquired within the second set duration.
综上所述，多挡传动装置和离合器的传统驱动系加速性较好，但是换挡时有动力中断；多挡传动装置和不带离合器的驱动***传动效率较高且没有动力中断；驱动电机和一级减速器传动装置能实现无级变速，但是加速性、爬坡能力差，使驱动电机的效率没有充分发挥。另外，汽车在加速行驶阶段、低速行驶阶段和高速行驶阶段对功率的需求不同，如果采用单电机驱动，电机很难一直工作在高效运转区，从而容易造成电能的浪费。In summary, the traditional drive system of the multi-speed transmission and clutch has better acceleration, but there is power interruption when shifting; the multi-speed transmission and the drive system without clutch have high transmission efficiency and no power interruption; drive motor It can realize stepless speed change with the first-level reducer transmission, but the acceleration and climbing ability are poor, so that the efficiency of the drive motor is not fully exerted. In addition, cars have different power requirements in the acceleration driving phase, low speed driving phase and high speed driving phase. If a single motor is used to drive, it is difficult for the motor to work in the high-efficiency operation area all the time, which is easy to cause waste of electric energy.
发明内容Summary of the invention
本申请的目的在于提供一种能够克服上述技术问题的双电机横置电驱动桥总成***及换挡控制方法。The purpose of the present application is to provide a dual-motor transverse electric drive axle assembly system and a shift control method that can overcome the above technical problems.
本申请所述***包括：驱动电机Ⅰ、输入轴Ⅰ、输入轴齿轮Ⅰ、接合套Ⅰ、中间轴、中间轴齿轮Ⅰ、中间轴齿轮Ⅱ、中间轴齿轮Ⅲ、三轴齿轮、接合套Ⅱ、输入轴齿轮Ⅱ、驱动电机Ⅱ、输入轴Ⅱ、三轴、驱动半轴、差速器、差速器齿轮、驱动车轮、花键连接A、花键连接B。The system described in this application includes: drive motor I, input shaft I, input shaft gear I, adapter sleeve I, countershaft, countershaft gear I, countershaft gear II, countershaft gear III, triaxial gear, adapter sleeve II, Input shaft gear II, drive motor II, input shaft II, three shafts, drive half shaft, differential, differential gear, drive wheels, spline connection A, spline connection B.
由输入轴齿轮Ⅰ和中间轴齿轮Ⅰ组成一档齿轮组，由输入轴齿轮Ⅱ和中间轴齿轮Ⅲ组成二档齿轮组；由中间轴齿轮Ⅱ和三轴齿轮组成减速齿轮组，由三轴齿轮和差速器齿轮组成减速齿轮组；其中输入轴齿轮Ⅰ空套在输入轴Ⅰ上，中间轴齿轮Ⅰ、中间轴齿轮Ⅱ、中间轴齿轮Ⅲ固定连接在中间轴上，三轴齿轮固定连接在三轴上，差速器齿轮固定连接在差速器壳体上；所述接合套Ⅰ固定连接在输入轴Ⅰ上并在输入轴齿轮Ⅰ和三轴齿轮之间能与输入轴齿轮Ⅰ和三轴齿轮结合或分离，接合套Ⅱ固定连接在输入轴Ⅱ上并在输入轴齿轮Ⅱ和三轴齿轮之间能与输入轴齿轮Ⅱ和三轴齿轮结合或分离。The input shaft gear I and the intermediate shaft gear I form a first gear group, the input shaft gear II and the intermediate shaft gear III form a second gear group; the intermediate shaft gear II and the three shaft gear form a reduction gear group, and the three shaft gear It forms a reduction gear set with the differential gear; in which the input shaft gear I is sleeved on the input shaft I, the intermediate shaft gear I, the intermediate shaft gear II, and the intermediate shaft gear III are fixedly connected to the intermediate shaft, and the three shaft gears are fixedly connected to On the three shafts, the differential gear is fixedly connected to the differential housing; the coupling sleeve I is fixedly connected to the input shaft I and can be connected to the input shaft gears I and three between the input shaft gear I and the three shaft gear The shaft gear is combined or separated. The coupling sleeve II is fixedly connected to the input shaft II and can be combined or separated with the input shaft gear II and the three-axis gear between the input shaft gear II and the three-axis gear.
本申请所述***的换挡控制方法是通过驱动电机Ⅰ和驱动电机Ⅱ的输出为变速器提供了三个挡位，变速器能够实现三个挡位的转换，所述三个挡位分别为双电机低速挡、单电机中速挡、双电机高速挡；本申请所述方法包括以下步骤：The shift control method of the system described in this application is to provide the transmission with three gears through the output of the driving motor I and the driving motor II. The transmission can realize the conversion of three gears, and the three gears are respectively dual motors Low speed gear, single motor medium speed gear, dual motor high speed gear; the method described in this application includes the following steps:
步骤1、双电机低速挡变为双电机高速挡： Step 1. The dual-motor low-speed gear becomes the dual-motor high-speed gear:
步骤1.1、从双电机低速挡过渡到驱动电机Ⅰ单独工作于低速挡，接合套Ⅰ与输入轴齿轮Ⅰ结合，使输入轴齿轮Ⅰ与输入轴Ⅰ固定连接，动力传输路线为：由驱动电机Ⅰ输出的动力，经由驱动电机Ⅰ的输出轴、输入轴Ⅰ、接合套Ⅰ、输入轴齿轮Ⅰ、中间轴齿轮Ⅰ、中间轴、中间轴齿轮Ⅱ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后传递到车轮；Step 1.1. Transition from dual-motor low-speed gear to drive motor I working alone in low-speed gear, coupling sleeve I is combined with input shaft gear I to make input shaft gear I and input shaft I fixedly connected, the power transmission route is: driven motor I The output power is driven by the output shaft of drive motor I, input shaft I, adapter sleeve I, input shaft gear I, countershaft gear I, countershaft, countershaft gear II, triaxial gear, differential gear, differential 、 Drive half axle, and finally transfer to the wheel;
步骤1.2、从驱动电机Ⅰ单独工作于低速挡过渡到驱动电机Ⅰ与驱动电机Ⅱ同时工作于低速挡，调节驱动电机Ⅱ的转速并当驱动电机Ⅱ的转速匹配到中间轴的转速与驱动电机Ⅰ传递到中间轴的转速相同时，接合套Ⅱ与输入轴齿轮Ⅱ结合，使输入轴齿轮Ⅱ与输入轴Ⅱ固定连接，驱动电机Ⅰ和驱动电机Ⅱ匹配到中间轴的转速相同，方向相同；动力传输路线为：由驱动电机Ⅰ的输出动力，经由驱动电机Ⅰ的输出轴、输入轴Ⅰ、接合套Ⅰ、输入轴齿轮Ⅰ、中间轴齿轮Ⅰ、中间轴、中间轴齿轮Ⅱ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后传递到车轮；由驱动电机Ⅱ输出的动力，经驱动电机Ⅱ的输出轴、变速箱输入轴Ⅱ、接合套Ⅱ、输入轴齿轮Ⅱ、中间轴齿轮Ⅲ、中间轴、中间轴齿轮Ⅱ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后到传递到车轮；Step 1.2. Transition from drive motor I working in low speed gear to drive motor I and drive motor II working in low speed gear at the same time, adjust the speed of drive motor II and match the speed of drive motor II to the speed of intermediate shaft and drive motor I When the rotation speed transmitted to the intermediate shaft is the same, the coupling sleeve II is combined with the input shaft gear II, so that the input shaft gear II and the input shaft II are fixedly connected, and the driving motor I and the driving motor II are matched to the same rotation speed of the intermediate shaft and the same direction; The transmission route is: from the output power of the drive motor I, through the output shaft of the drive motor I, the input shaft I, the coupling sleeve I, the input shaft gear I, the intermediate shaft gear I, the intermediate shaft, the intermediate shaft gear II, the three-axis gear, Differential gears, differentials, drive axles, and finally transmitted to the wheels; the power output by the drive motor II, the output shaft of the drive motor II, the transmission input shaft II, the coupling sleeve II, the input shaft gear II, the middle Axle gear III, intermediate shaft, intermediate shaft gear II, three-axis gear, differential gear, differential, drive axle, and finally to the wheel;
步骤1.3、由从驱动电机Ⅰ与驱动电机Ⅱ同时工作于低速挡过渡到驱动电机Ⅱ单独工作于低速挡，接合套Ⅰ与输入轴齿轮Ⅰ分离，动力传输路线为：由驱动电机Ⅱ输出的动力，经驱动电机Ⅱ的输出轴、输入轴Ⅱ、接合套Ⅱ、输入轴齿轮Ⅱ、中间轴齿轮Ⅲ、中间轴、中间轴齿轮Ⅱ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后到传递到车轮；Step 1.3: The transition from driving motor I and driving motor II working in low speed gear to driving motor II working in low speed gear separately, coupling sleeve I is separated from input shaft gear I, the power transmission route is: the power output by driving motor II , Via the output shaft, input shaft II, coupling sleeve II, input shaft gear II, intermediate shaft gear III, intermediate shaft, intermediate shaft gear II, triaxial gear, differential gear, differential, drive half of the drive motor II The shaft, and finally to the wheel;
步骤1.4、从驱动电机Ⅱ单独工作于低速挡过渡到双电机中间挡，调节驱动电机Ⅰ的转速，当驱动电机Ⅰ的转速匹配到三轴齿轮的转速与驱动电机Ⅱ传递到三轴齿轮的转速相同时，接合套Ⅰ与三轴齿轮结合，输入轴Ⅰ与三轴齿轮固定连接，动力传输路线为：由驱动电机Ⅰ输出的动力，经驱动电机Ⅰ的输出轴、输入轴Ⅰ、接合套Ⅰ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后到传递到车轮；由驱动电机Ⅱ输出的动力，经驱动电机Ⅱ的输出轴、变速箱输入轴Ⅱ、接合套Ⅱ、输入轴齿轮Ⅱ、中间轴齿轮Ⅲ、中间轴、中间轴齿轮Ⅱ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后到传递到车轮；Step 1.4. Transition from drive motor II to low-speed gear to mid-range of dual motor, adjust the speed of drive motor I. When the speed of drive motor I matches the speed of three-axis gear and the speed of drive motor II is transferred to the three-axis gear At the same time, the coupling sleeve I is combined with the three-axis gear, the input shaft I is fixedly connected with the three-axis gear, and the power transmission route is: the power output by the drive motor I, the output shaft of the drive motor I, the input shaft I, the coupling sleeve I , Three-axis gears, differential gears, differentials, drive axles, and finally transmitted to the wheels; the power output by the drive motor II, the output shaft of the drive motor II, the input shaft of the gearbox II, the coupling sleeve II, Input shaft gear II, intermediate shaft gear III, intermediate shaft, intermediate shaft gear II, three shaft gear, differential gear, differential, drive axle, and finally to the wheel;
步骤1.5、从双电机中间挡过渡到驱动电机Ⅰ单独工作于高速挡，接合套Ⅱ与输入轴齿轮Ⅱ分离，动力传输路线为：由驱动电机Ⅰ输出的动力，经驱动电机Ⅰ的输出轴、变速箱输入轴Ⅰ、接合套Ⅰ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后到传递到车轮；Step 1.5: The transition from the dual-motor intermediate gear to the drive motor I works alone in the high-speed gear. The coupling sleeve II is separated from the input shaft gear II. The power transmission route is: the power output by the drive motor I. Gearbox input shaft I, coupling sleeve I, three-axis gear, differential gear, differential, drive half shaft, and finally to the wheel;
步骤1.6、从驱动电机Ⅰ单独工作于高速挡过渡到双电机高速挡，调节驱动电机Ⅱ的转速，当驱动电机Ⅱ的转速与驱动电机Ⅰ转速相同，方向相同时，接合套Ⅱ与三轴齿轮结合，使三轴齿轮与输入轴Ⅱ固定连接，动力传输路线为：驱动电机Ⅰ输出的动力，经驱动电机Ⅰ的输出轴、变速箱输入轴Ⅰ、接合套Ⅰ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后到传递到车轮；由驱动电机Ⅱ输出的动力，经驱动电机Ⅱ的输出轴、变速箱输入轴Ⅱ、接合套Ⅱ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后到传递到车轮。Step 1.6. Transition from drive motor Ⅰ to high-speed gear alone, and adjust the speed of drive motor Ⅱ. When the speed of drive motor Ⅱ is the same as the speed of drive motor Ⅰ and the direction is the same, joint sleeve Ⅱ and three-axis gear Combine to make the three-axis gear fixedly connected with the input shaft II. The power transmission route is: the power output by the drive motor I, the output shaft of the drive motor I, the transmission input shaft I, the coupling sleeve I, the three-axis gear, and the differential Gears, differentials, drive axles, and finally transmitted to the wheels; the power output by the drive motor II, the output shaft of the drive motor II, the transmission input shaft II, the coupling sleeve II, the three-axis gear, the differential gear , Differential, drive axle, and finally to the wheels.
步骤2、从双电机高速挡变为双电机低速挡： Step 2. Change from dual-motor high-speed gear to dual-motor low-speed gear:
步骤2.1、从双电机高速挡过渡到驱动电机Ⅰ单独工作于高速挡：接合套Ⅱ与三轴齿轮分离，动力传输路线为：由驱动电机Ⅰ输出的动力，经驱动电机Ⅰ的输出轴、变速箱输入轴Ⅰ、接合套Ⅰ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后到传递到车轮；Step 2.1. Transition from dual-motor high-speed gear to drive motor I working alone in high-speed gear: the coupling sleeve II is separated from the three-axis gear, and the power transmission route is: the power output by the drive motor I, the output shaft of the drive motor I, the speed change Box input shaft Ⅰ, coupling sleeve Ⅰ, three-axis gear, differential gear, differential, drive half shaft, and finally transmitted to the wheel;
步骤2.2、从驱动电机Ⅰ单独工作于高速挡过渡到双电机中间挡：调节驱动电机Ⅱ的转速，当驱动电机Ⅱ的转速匹配到三轴齿轮的转速与驱动电机Ⅰ传递到三轴齿轮的转速相同时，接合套Ⅱ与输入轴齿轮Ⅱ结合，使输入轴齿轮Ⅱ与输入轴Ⅱ固定连接，驱动电机Ⅰ和驱动电机Ⅱ匹配到三轴齿轮的转速相同，方向相同；动力传输路线为：由驱动电机Ⅰ输出的动力，经驱动电机Ⅰ的输出轴、变速箱输入轴Ⅰ、接合套Ⅰ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后到传递到车轮；由驱动电机Ⅱ输出的动力，经驱动电机Ⅱ的输出轴、变速箱输入轴Ⅱ、接合套Ⅱ、输入轴齿轮Ⅱ、中间轴齿轮Ⅲ、中间轴、中间轴齿轮Ⅱ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后到传递到车轮；Step 2.2. Transition from drive motor I to high-speed gear alone to double-motor intermediate gear: adjust the speed of drive motor II, when the speed of drive motor II matches the speed of the three-axis gear and the speed of drive motor I to the three-axis gear When they are the same, the coupling sleeve II is combined with the input shaft gear II to make the input shaft gear II and the input shaft II fixedly connected. The driving motor I and the driving motor II are matched to the same speed of the three-axis gear and the same direction; the power transmission route is: The power output by the drive motor I is transmitted to the wheels through the output shaft of the drive motor I, the input shaft I of the gearbox, the coupling sleeve I, the three-axis gear, the differential gear, the differential, the drive half shaft, and finally to the wheels; The power output by the motor II is driven by the output shaft of the drive motor II, the gearbox input shaft II, the coupling sleeve II, the input shaft gear II, the intermediate shaft gear III, the intermediate shaft, the intermediate shaft gear II, the triaxial gear, and the differential gear , Differential, drive axle, and finally to the wheel;
步骤2.3、从双电机中间挡过渡到驱动电机Ⅱ单独工作于低速挡：接合套Ⅰ与三轴齿轮分离，动力传输路线为：由驱动电机Ⅱ输出的动力，经驱动电机Ⅱ的输出轴、变速箱输入轴Ⅱ、接合套Ⅱ、输入轴齿轮Ⅱ、中间轴齿轮Ⅲ、中间轴、中间轴齿轮Ⅱ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后到传递到车轮；Step 2.3. Transition from dual-motor intermediate gear to drive motor II working alone in low-speed gear: the coupling sleeve I is separated from the three-axis gear, and the power transmission route is: the power output by the drive motor II, the output shaft of the drive motor II, the speed change Box input shaft II, coupling sleeve II, input shaft gear II, intermediate shaft gear III, intermediate shaft, intermediate shaft gear II, three-axis gear, differential gear, differential, drive axle, and finally to the wheel;
步骤2.4、从驱动电机Ⅱ单独工作于低速挡过渡到驱动电机Ⅰ与驱动电机Ⅱ同时工作于低速挡：调整驱动电机Ⅰ的转速，当驱动电机Ⅰ的转速匹配到中间轴齿轮的转速与驱动电机Ⅱ传递到中间轴的转速相同时，接合套Ⅰ与输入轴齿轮Ⅰ结合，使输入轴齿轮Ⅰ与输入轴Ⅰ固定连接，动力传输路线为：由驱动电机Ⅰ的输出动力，经由驱动电机Ⅰ的输出轴、输入轴Ⅰ、接合套Ⅰ、输入轴齿轮Ⅰ、中间轴齿轮Ⅰ、中间轴、中间轴齿轮Ⅱ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后传递到车轮；由驱动电机Ⅱ输出的动力，经驱动电机Ⅱ的输出轴、变速箱输入轴Ⅱ、接合套Ⅱ、输入轴齿轮Ⅱ、中间轴齿轮Ⅲ、中间轴、中间轴齿轮Ⅱ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后到传递到车轮。Step 2.4. Transition from the drive motor II working alone in the low speed gear to the drive motor I and the drive motor II working in the low speed gear at the same time: adjust the speed of the drive motor I, when the speed of the drive motor I matches the speed of the countershaft gear and the drive motor When the speed of transmission to the intermediate shaft is the same, the coupling sleeve I is combined with the input shaft gear I to make the input shaft gear I and the input shaft I fixedly connected. The power transmission route is: from the output power of the drive motor I, through the drive motor I Output shaft, input shaft I, adapter sleeve I, input shaft gear I, intermediate shaft gear I, intermediate shaft, intermediate shaft gear II, three-axis gear, differential gear, differential, drive axle, and finally transmitted to the wheel ; The power output by the drive motor II, via the output shaft of the drive motor II, gearbox input shaft II, adapter sleeve II, input shaft gear II, intermediate shaft gear III, intermediate shaft, intermediate shaft gear II, three shaft gear, differential The gears, differentials, and drive axles are finally transmitted to the wheels.
步骤3、倒挡模式下的控制，驱动电机Ⅰ工作于低速挡，接合套Ⅰ与输入轴齿轮Ⅰ结合，输入轴齿轮Ⅰ与输入轴固定连接；动力传递路线为：由驱动电机Ⅰ输出的动力，经由驱动电机Ⅰ的输出轴、输入轴Ⅰ、接合套Ⅰ、输入轴齿轮Ⅰ、中间轴齿轮Ⅰ、中间轴、中间轴齿轮Ⅱ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后传递到车轮。 Step 3. Control in reverse gear mode, the drive motor I works in low speed gear, the coupling sleeve I is combined with the input shaft gear I, the input shaft gear I is fixedly connected to the input shaft; the power transmission route is: the power output by the drive motor I , Via the output shaft of drive motor I, input shaft I, coupling sleeve I, input shaft gear I, intermediate shaft gear I, intermediate shaft, intermediate shaft gear II, three shaft gear, differential gear, differential, drive half The shaft finally passes to the wheel.
步骤4、各挡位模式下的制动控制： Step 4. Brake control in each gear mode:
步骤4.1、当汽车在双电机低速挡模式驱动行驶时，踩动制动踏板进行制动，此时动力传递路线为：输入的动力依次经过车轮、驱动半轴、差速器、差速器齿轮、三轴齿轮、中间轴齿轮Ⅱ、中间轴、中间轴齿轮Ⅰ、输入轴齿轮Ⅰ、接合套Ⅰ、输入轴Ⅰ，最后拖动驱动电机Ⅰ发电，然后经车轮、驱动半轴、差速器、差速器齿轮、三轴齿轮、中间轴齿轮Ⅱ、中间轴、中间轴齿轮Ⅲ、输入轴齿轮Ⅱ、接合套Ⅱ、输入轴Ⅱ，最后拖动驱动电机Ⅱ发电；当电池电量充满时，改为机械制动；Step 4.1. When the car is driving in the dual-motor low-speed gear mode, step on the brake pedal to brake. At this time, the power transmission route is: the input power passes through the wheel, the drive half shaft, the differential, and the differential gear in turn , Three-shaft gear, intermediate shaft gear II, intermediate shaft, intermediate shaft gear I, input shaft gear I, coupling sleeve I, input shaft I, and finally drive the drive motor I to generate electricity, and then pass the wheels, drive half shaft, differential , Differential gear, three-shaft gear, intermediate shaft gear II, intermediate shaft, intermediate shaft gear III, input shaft gear II, coupling sleeve II, input shaft II, and finally drive the drive motor II to generate electricity; when the battery is full, Change to mechanical brake;
步骤4.2、当汽车在双电机中间挡模式驱动行驶时，踩动制动踏板进行制动，此时动力传递路线为：输入的动力依次经车轮、驱动半轴、差速器、差速器齿轮、三轴齿轮、接合套Ⅰ、输入轴Ⅰ，最后拖动驱动电机Ⅰ发电，然后经车轮、驱动半轴、差速器、差速器齿轮、三轴齿轮、中间轴齿轮Ⅱ、中间轴、中间轴齿轮Ⅲ、输入轴齿轮Ⅱ、接合套Ⅱ、输入轴Ⅱ，最后拖动驱动电机Ⅱ发电；当电池电量充满时，改为机械制动；Step 4.2. When the car is driving in the dual-motor mid-gear mode, step on the brake pedal to brake. At this time, the power transmission route is: the input power is sequentially passed through the wheels, the drive half shaft, the differential, and the differential gear. , Three-axis gear, coupling sleeve I, input shaft I, and finally drive the drive motor I to generate electricity, and then through the wheels, drive half shaft, differential, differential gear, three-axis gear, intermediate shaft gear II, intermediate shaft, Intermediate shaft gear III, input shaft gear II, coupling sleeve II, input shaft II, and finally drive the drive motor II to generate electricity; when the battery is full, change to mechanical brake;
步骤4.3、当汽车在双电机高速挡模式驱动行驶时，踩动制动踏板进行制动，动力传递路线为：输入的动力依次经车轮、驱动半轴、差速器、差速器齿轮、三轴齿轮、接合套Ⅰ、输入轴Ⅰ，最后拖动驱动电机Ⅰ发电，然后经车轮、驱动半轴、差速器、差速器齿轮、三轴齿轮、接合套Ⅱ、输入轴Ⅱ，最后拖动驱动电机Ⅱ发电；当电池电量充满时，改为机械 制动。Step 4.3: When the car is driving in the dual-motor high-speed gear mode, step on the brake pedal to brake, the power transmission route is: the input power is in turn through the wheel, the drive axle, the differential, the differential gear, the third Shaft gear, coupling sleeve I, input shaft I, and finally drive the motor I to generate electricity, and then through the wheels, drive half shaft, differential, differential gear, three-axis gear, coupling sleeve II, input shaft II, and finally drag Drive the motor II to generate electricity; when the battery is full, change to mechanical braking.
采用双电机低速挡工作模式时，驱动电机Ⅰ和驱动电机Ⅱ的工作状态为：When the dual-motor low-speed gear working mode is adopted, the working states of drive motor I and drive motor II are:
驱动电机Ⅰ：工作于低速挡，接合套Ⅰ和输入轴齿轮Ⅰ结合，使输入轴齿轮Ⅰ与输入轴Ⅰ固定连接。动力传输路线为：由驱动电机Ⅰ输出的动力，经驱动电机Ⅰ的输出轴、变速箱输入轴Ⅰ、接合套Ⅰ、输入轴齿轮Ⅰ、中间轴齿轮Ⅰ、中间轴、中间轴齿轮Ⅱ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后到传递到车轮。Drive motor Ⅰ: working in low-speed gear, the coupling sleeve I is combined with the input shaft gear I, so that the input shaft gear I and the input shaft I are fixedly connected. The power transmission route is: the power output by the drive motor I, the output shaft of the drive motor I, the gearbox input shaft I, the coupling sleeve I, the input shaft gear I, the intermediate shaft gear I, the intermediate shaft, the intermediate shaft gear II, three Axle gears, differential gears, differentials, drive axles, and finally to the wheels.
驱动电机Ⅱ：工作于低速挡，接合套Ⅱ和输入轴齿轮Ⅱ结合，使输入轴齿轮Ⅱ与输入轴Ⅱ固定连接。动力传输路线为：由驱动电机Ⅱ输出的动力，经驱动电机Ⅱ的输出轴、变速箱输入轴Ⅱ、接合套Ⅱ、输入轴齿轮Ⅱ、中间轴齿轮Ⅲ、中间轴、中间轴齿轮Ⅱ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后到传递到车轮。Drive motor II: working in low-speed gear, coupling sleeve II and input shaft gear II are combined, so that input shaft gear II and input shaft II are fixedly connected. The power transmission route is: the power output by the drive motor II, via the output shaft of the drive motor II, the gearbox input shaft II, the coupling sleeve II, the input shaft gear II, the intermediate shaft gear III, the intermediate shaft, the intermediate shaft gear II, three Axle gears, differential gears, differentials, drive axles, and finally to the wheels.
采用双电机中速挡工作模式时，驱动电机Ⅰ和驱动电机Ⅱ的工作状态为：When the dual-motor medium-speed gear working mode is adopted, the working states of drive motor I and drive motor II are:
驱动电机Ⅰ：工作于高速挡，接合套Ⅰ和三轴齿轮结合，使三轴齿轮与输入轴Ⅰ固定连接；动力传输路线为：由驱动电机Ⅰ输出的动力，经驱动电机Ⅰ的输出轴、变速箱输入轴Ⅰ、接合套Ⅰ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后到传递到车轮。Drive motor I: working in high-speed gear, the coupling sleeve I is combined with the three-axis gear, so that the three-axis gear is fixedly connected to the input shaft I; the power transmission route is: the power output by the drive motor I, the output shaft of the drive motor I, The gearbox input shaft I, adapter sleeve I, three-axis gears, differential gears, differentials, drive axles, and finally to the wheels.
驱动电机Ⅱ：工作于低速挡，接合套Ⅱ和输入轴齿轮Ⅱ结合，使输入轴齿轮Ⅱ与输入轴Ⅱ固定连接；动力传输路线为：由驱动电机Ⅱ输出的动力，经驱动电机Ⅱ的输出轴、变速箱输入轴Ⅱ、接合套Ⅱ、输入轴齿轮Ⅱ、中间轴齿轮Ⅲ、中间轴、中间轴齿轮Ⅱ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后到传递到车轮。Drive motor II: working in low speed gear, coupling sleeve II and input shaft gear II are combined to make input shaft gear II and input shaft II fixedly connected; the power transmission route is: the power output by drive motor II, the output of drive motor II Shaft, gearbox input shaft II, adapter sleeve II, input shaft gear II, intermediate shaft gear III, intermediate shaft, intermediate shaft gear II, three-axis gear, differential gear, differential, drive half shaft, and finally to the transmission To the wheel.
采用双电机高速挡工作模式时，驱动电机Ⅰ和驱动电机Ⅱ的工作状态为：When the dual-motor high-speed gear working mode is adopted, the working states of the driving motor I and the driving motor II are:
驱动电机Ⅰ：工作于高速挡，接合套Ⅰ和三轴齿轮结合，使三轴齿轮与输入轴Ⅰ固定连接；动力传输路线为：由驱动电机Ⅰ输出的动力，经驱动电机Ⅰ的输出轴、变速箱输入轴Ⅰ、接合套Ⅰ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后到传递到车轮。Drive motor I: working in high-speed gear, the coupling sleeve I is combined with the three-axis gear, so that the three-axis gear is fixedly connected to the input shaft I; the power transmission route is: the power output by the drive motor I, the output shaft of the drive motor I, The gearbox input shaft I, adapter sleeve I, three-axis gears, differential gears, differentials, drive axles, and finally to the wheels.
驱动电机Ⅱ：工作于高速挡，接合套Ⅱ和三轴齿轮结合，使三轴齿轮与输入轴Ⅱ固定连接；动力传输路线为：由驱动电机Ⅱ输出的动力，经驱动电机Ⅱ的输出轴、变速箱输入轴Ⅱ、接合套Ⅱ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后到传递到车轮。Drive motor II: working in high-speed gear, the coupling sleeve II and the three-axis gear are combined to make the three-axis gear fixedly connected with the input shaft II; the power transmission route is: the power output by the drive motor II, the output shaft of the drive motor The gearbox input shaft II, adapter sleeve II, three-axis gears, differential gears, differentials, drive axles, and finally to the wheels.
本申请具有以下优点：This application has the following advantages:
1、将驱动电机、变速箱、驱动桥***高度集成，取消了传动轴、万向节的传动部件，从而构成整车控制***，具有***高度集成、占用空间少的特点。1. The drive motor, gearbox and drive axle system are highly integrated, and the transmission components of the transmission shaft and the universal joint are eliminated, thereby forming a vehicle control system, which has the characteristics of high integration of the system and less space occupation.
2、变速器设置了3个挡位，能合理调配动力输出，节省了动力，达到节能环保的效果，且换挡时动力不会中断。2. The transmission is equipped with 3 gears, which can reasonably allocate power output, save power, achieve the effect of energy saving and environmental protection, and the power will not be interrupted when shifting.
3、采用双电机驱动，使汽车无论处于加速工况、低速工况还是高速工况，通过单电机驱动与双电机驱动的模式切换，使电机一直工作在高效运转区，从而避免了电能的浪费。3. The dual-motor drive is adopted to enable the car to work in the high-efficiency operating area through the switching between the single-motor drive and the dual-motor drive regardless of whether it is in accelerated, low-speed or high-speed conditions, thereby avoiding the waste of electrical energy. .
4、电动机Ⅰ能够正反向转动，倒车时，挂一挡电动机Ⅰ反向转动实现倒车行驶，电动机Ⅱ能不工作。4. The motor I can rotate in forward and reverse directions. When reversing, the first gear motor I can be reversed to achieve reverse driving, and the motor II can not work.
5、制动时进行制动能量回收，即输出端为原输入端，即电动机；输入端为原输出端，即车轮的转速，并且电动机由驱动状态变为发电状态，能量从车轮到电机,实现制动能量回收。这样能降低电池的能量损失，也能降低电池成本，提高电动车的续驶里程。5. Braking energy recovery during braking, that is, the output end is the original input end, that is, the motor; the input end is the original output end, that is, the speed of the wheel, and the motor changes from the driving state to the power generation state, and the energy goes from the wheel to the motor. Achieve braking energy recovery. This can reduce the energy loss of the battery, can also reduce the battery cost, and improve the driving range of the electric vehicle.
6、所述驱动电机和变速箱与整体式驱动桥平行布置，有效降低汽车重心。6. The drive motor and gearbox are arranged in parallel with the integrated drive axle, effectively reducing the center of gravity of the car.
本申请所述***结构简单、集成度高、可靠性高并能达到轻量化的目的。本申请提高了加速性和爬坡能力且换挡平顺，又能保证动力不中断，并能将车辆行驶产生的动能在制动时转化为部分电能，能够节省部分电能量损失，从而降低了电池成本。The system described in this application has a simple structure, high integration, high reliability and can achieve the purpose of light weight. The application improves acceleration and climbing ability and shifts smoothly, and can ensure that power is not interrupted, and can convert the kinetic energy generated by the vehicle during braking into part of electric energy, which can save part of the electric energy loss, thereby reducing the battery cost.
附图说明BRIEF DESCRIPTION
图1是本申请所述***的原理结构示意图；1 is a schematic diagram of the principle structure of the system described in this application;
图2是本申请的驱动电机Ⅰ单独工作低速挡模式的示意图；2 is a schematic diagram of the drive motor I of the present application working alone in a low-speed gear mode;
图3是本申请的双电机低速挡模式的示意图；3 is a schematic diagram of the dual-motor low-speed gear mode of the present application;
图4是本申请的驱动电机Ⅱ单独工作低速挡模式的示意图；4 is a schematic diagram of the low-speed gear mode of the drive motor II of the present application working alone;
图5是本申请的双电机中速挡模式的示意图；5 is a schematic diagram of the dual-motor medium-speed gear mode of the present application;
图6是本申请的驱动电机Ⅰ单独工作高速挡模式的示意图；6 is a schematic diagram of the drive motor I of this application working alone in a high-speed gear mode;
图7是本申请的双电机工作高速挡模式的示意图；7 is a schematic diagram of the dual-motor working high-speed gear mode of this application;
图8是本申请的倒挡模式的示意图；8 is a schematic diagram of the reverse gear mode of the present application;
图9是本申请的双电机低速挡制动模式的示意图；9 is a schematic diagram of the dual-motor low-speed gear braking mode of the present application;
图10是本申请的双电机中速挡制动模式的示意图；10 is a schematic diagram of the dual-motor medium-speed gear braking mode of the present application;
图11是本申请的双电机工作高速挡制动模式的示意图；11 is a schematic diagram of the dual motor working high-speed gear braking mode of this application;
图1-图11中所示:As shown in Figure 1 to Figure 11:
1-驱动电机Ⅰ；2-输入轴Ⅰ；3-输入轴齿轮Ⅰ；4-接合套Ⅰ；1- Drive motor I; 2- Input shaft I; 3- Input shaft gear I; 4-Coupling sleeve I;
5-中间轴；6-中间轴齿轮Ⅰ；7-中间轴齿轮Ⅱ；8-中间轴齿轮Ⅲ；5- intermediate shaft; 6- intermediate shaft gear I; 7- intermediate shaft gear II; 8- intermediate shaft gear III;
9-三轴齿轮；10-接合套Ⅱ；11-输入轴齿轮Ⅱ；12-驱动电机Ⅱ；9-three-axis gear; 10-coupling sleeve II; 11-input shaft gear II; 12-drive motor II;
13-输入轴Ⅱ；14-三轴；15-驱动半轴；16-差速器；17-差速器齿轮；13-input shaft II; 14-three shaft; 15-drive half shaft; 16-differential; 17-differential gear;
18-驱动车轮；A-花键连接；B-花键连接。18-Drive wheels; A-spline connection; B-spline connection.
具体实施方式detailed description
下面结合附图对本申请的实施方式进行详细描述。如图1所示，本申请所述***包括：驱动电机Ⅰ1、输入轴Ⅰ2、输入轴齿轮Ⅰ3、接合套Ⅰ4、中间轴5、中间轴齿轮Ⅰ6、中间 轴齿轮Ⅱ7、中间轴齿轮Ⅲ8、三轴齿轮9、接合套Ⅱ10、输入轴齿轮Ⅱ11、驱动电机Ⅱ12、输入轴Ⅱ13、三轴14、驱动半轴15、差速器16、差速器齿轮17、驱动车轮18、花键连接A、花键连接B。The embodiments of the present application will be described in detail below with reference to the drawings. As shown in FIG. 1, the system described in this application includes: a drive motor I1, an input shaft I2, an input shaft gear I3, a coupling sleeve I4, an intermediate shaft 5, an intermediate shaft gear I6, an intermediate shaft gear II7, an intermediate shaft gear III8, three Axle gear 9, coupling sleeve II 10, input shaft gear II 11, drive motor II 12, input shaft II 13, triaxial 14, drive half shaft 15, differential 16, differential gear 17, drive wheels 18, spline connection A, Spline connection B.
由输入轴齿轮Ⅰ3和中间轴齿轮Ⅰ6组成一档齿轮组，由输入轴Ⅱ13齿轮11和中间轴齿轮Ⅲ8组成二档齿轮组；由中间轴齿轮Ⅱ7和三轴齿轮9组成减速齿轮组，由三轴齿轮9和差速器齿轮17组成减速齿轮组；其中输入轴齿轮Ⅰ3空套在输入轴Ⅰ2上，中间轴齿轮Ⅰ6、中间轴齿轮Ⅱ7、中间轴齿轮Ⅲ8固定连接在中间轴5上，三轴齿轮9固定连接在三轴14上，差速器齿轮17固定连接在差速器16壳体上；所述接合套Ⅰ4固定连接在输入轴Ⅰ2上并在输入轴齿轮Ⅰ3和三轴齿轮9之间能与输入轴齿轮Ⅰ3和三轴齿轮9结合或分离，接合套Ⅱ10固定连接在输入轴Ⅱ13上并在输入轴齿轮Ⅱ11和三轴齿轮9之间能与输入轴齿轮Ⅱ11和三轴齿轮9结合或分离。The input shaft gear I3 and the intermediate shaft gear I6 form a first-speed gear group, the input shaft II13 gear 11 and the intermediate shaft gear III8 form a second-speed gear group; the intermediate shaft gear II7 and the three-axis gear 9 form a reduction gear group, which consists of three The shaft gear 9 and the differential gear 17 form a reduction gear set; in which the input shaft gear I3 is empty sleeved on the input shaft I2, the intermediate shaft gear I6, the intermediate shaft gear II7, and the intermediate shaft gear III8 are fixedly connected to the intermediate shaft 5, three The shaft gear 9 is fixedly connected to the three shafts 14 and the differential gear 17 is fixedly connected to the housing of the differential 16; the coupling sleeve I4 is fixedly connected to the input shaft I2 and between the input shaft gear I3 and the three shaft gear 9 It can be combined with or separated from the input shaft gear I3 and the three-shaft gear 9. The coupling sleeve II10 is fixedly connected to the input shaft II13 and can be connected to the input shaft gear II11 and the three-shaft gear between the input shaft gear II11 and the three-shaft gear 9. 9 Combine or separate.
本申请所述***的换挡控制方法是通过驱动电机Ⅰ1和驱动电机Ⅱ12的输出为变速器提供了三个挡位，变速器能够实现三个挡位的转换，所述三个挡位分别为双电机低速挡、单电机中速挡、双电机高速挡；本申请所述方法包括以下步骤：The shift control method of the system described in this application is to provide the transmission with three gears through the output of the driving motor I1 and the driving motor II12. The transmission can realize the conversion of three gears, and the three gears are respectively dual motors Low speed gear, single motor medium speed gear, dual motor high speed gear; the method described in this application includes the following steps:
步骤1、双电机低速挡变为双电机高速挡： Step 1. The dual-motor low-speed gear becomes the dual-motor high-speed gear:
步骤1.1、如图2所示，从双电机低速挡过渡到驱动电机Ⅰ1单独工作于低速挡，接合套Ⅰ4与输入轴齿轮Ⅰ3结合，使输入轴齿轮Ⅰ3与输入轴Ⅰ2固定连接，动力传输路线为：由驱动电机Ⅰ1输出的动力，经由驱动电机Ⅰ1的输出轴、输入轴Ⅰ2、接合套Ⅰ4、输入轴齿轮Ⅰ3、中间轴齿轮Ⅰ6、中间轴5、中间轴齿轮Ⅱ7、三轴齿轮9、差速器齿轮17、差速器16、驱动半轴15，最后传递到车轮；Step 1.1. As shown in Fig. 2, the transition from the low speed gear of the dual motor to the drive motor I1 works alone in the low speed gear, the coupling sleeve I4 is combined with the input shaft gear I3, so that the input shaft gear I3 is fixedly connected to the input shaft I2, and the power transmission route For: the power output by the drive motor I1, via the output shaft of the drive motor I1, input shaft I2, adapter sleeve I4, input shaft gear I3, intermediate shaft gear I6, intermediate shaft 5, intermediate shaft gear II7, three shaft gear 9, The differential gear 17, the differential 16, the drive half shaft 15, and finally transmitted to the wheels;
步骤1.2、如图3所示，从驱动电机Ⅰ1单独工作于低速挡过渡到驱动电机Ⅰ1与驱动电机Ⅱ12同时工作于低速挡，调节驱动电机Ⅱ12的转速并当驱动电机Ⅱ12的转速匹配到中间轴5的转速与驱动电机Ⅰ1传递到中间轴5的转速相同时，接合套Ⅱ10与输入轴齿轮Ⅱ11结合，使输入轴齿轮Ⅱ11与输入轴Ⅱ13固定连接，驱动电机Ⅰ1和驱动电机Ⅱ12匹配到中间轴5的转速相同，方向相同；动力传输路线为：由驱动电机Ⅰ1的输出动力，经由驱动电机Ⅰ1的输出轴、输入轴Ⅰ2、接合套Ⅰ4、输入轴齿轮Ⅰ3、中间轴齿轮Ⅰ6、中间轴5、中间轴齿轮Ⅱ7、三轴齿轮9、差速器齿轮17、差速器16、驱动半轴15，最后传递到车轮；由驱动电机Ⅱ12输出的动力，经驱动电机Ⅱ12的输出轴、变速箱输入轴Ⅱ13、接合套Ⅱ10、输入轴齿轮Ⅱ11、中间轴齿轮Ⅲ8、中间轴5、中间轴齿轮Ⅱ7、三轴齿轮9、差速器齿轮17、差速器16、驱动半轴15，最后到传递到车轮；Step 1.2. As shown in Figure 3, transition from drive motor I1 working alone in low speed to drive motor I1 and drive motor II12 working in low speed at the same time, adjust the speed of drive motor II12 and match the speed of drive motor II12 to the intermediate shaft When the rotation speed of 5 is the same as the rotation speed of the drive motor I1 transmitted to the intermediate shaft 5, the coupling sleeve II10 is combined with the input shaft gear II11, so that the input shaft gear II11 and the input shaft II13 are fixedly connected, and the drive motor I1 and the drive motor II12 are matched to the intermediate shaft 5 has the same speed and the same direction; the power transmission route is: from the output power of the drive motor I1, through the output shaft of the drive motor I1, the input shaft I2, the coupling sleeve I4, the input shaft gear I3, the intermediate shaft gear I6, the intermediate shaft 5 , Countershaft gear II7, triaxial gear 9, differential gear 17, differential 16, drive half shaft 15, and finally transmitted to the wheels; the power output by the drive motor II12, through the output shaft of the drive motor II12, gearbox Input shaft II13, adapter sleeve II10, input shaft gear II11, intermediate shaft gear III8, intermediate shaft 5, intermediate shaft gear II7, three shaft gear 9, differential Gear 17, differential 16, drive axle 15, and finally transmitted to the wheels;
步骤1.3、如图4所示，由从驱动电机Ⅰ1与驱动电机Ⅱ12同时工作于低速挡过渡到驱动电机Ⅱ12单独工作于低速挡，接合套Ⅰ4与输入轴齿轮Ⅰ3分离，动力传输路线为：由 驱动电机Ⅱ12输出的动力，经驱动电机Ⅱ12的输出轴、输入轴Ⅱ13、接合套Ⅱ10、输入轴齿轮Ⅱ11、中间轴齿轮Ⅲ8、中间轴5、中间轴齿轮Ⅱ7、三轴齿轮9、差速器齿轮17、差速器16、驱动半轴15，最后到传递到车轮；Step 1.3. As shown in FIG. 4, the transition from the driving motor I1 and the driving motor II12 to work at low speed gear simultaneously to the driving motor II12 to work at low speed gear alone, the coupling sleeve I4 is separated from the input shaft gear I3, the power transmission route is: The power output by the drive motor II12 passes through the output shaft of the drive motor II12, the input shaft II13, the coupling sleeve II10, the input shaft gear II11, the intermediate shaft gear III8, the intermediate shaft 5, the intermediate shaft gear II7, the three-axis gear 9, and the differential Gear 17, differential 16, drive half shaft 15, and finally to the wheels;
步骤1.4、如图5所示，从驱动电机Ⅱ12单独工作于低速挡过渡到双电机中间挡，调节驱动电机Ⅰ1的转速，当驱动电机Ⅰ1的转速匹配到三轴齿轮9的转速与驱动电机Ⅱ12传递到三轴齿轮9的转速相同时，接合套Ⅰ4与三轴齿轮9结合，输入轴Ⅰ2与三轴齿轮9固定连接，动力传输路线为：由驱动电机Ⅰ1输出的动力，经驱动电机Ⅰ1的输出轴、输入轴Ⅰ2、接合套Ⅰ4、三轴齿轮9、差速器齿轮17、差速器16、驱动半轴15，最后到传递到车轮；由驱动电机Ⅱ12输出的动力，经驱动电机Ⅱ12的输出轴、变速箱输入轴Ⅱ13、接合套Ⅱ10、输入轴Ⅱ13齿轮11、中间轴齿轮Ⅲ8、中间轴5、中间轴齿轮Ⅱ7、三轴齿轮9、差速器齿轮17、差速器16、驱动半轴15，最后到传递到车轮；Step 1.4. As shown in FIG. 5, transition from the driving motor II12 to low-speed gear to the dual-motor intermediate gear, adjust the speed of the driving motor I1, when the speed of the driving motor I1 matches the speed of the three-axis gear 9 and the driving motor II12 When the rotation speed transmitted to the three-axis gear 9 is the same, the coupling sleeve I4 is combined with the three-axis gear 9, the input shaft I2 is fixedly connected to the three-axis gear 9, the power transmission route is: the power output by the drive motor I1, after the drive motor I1 Output shaft, input shaft I2, coupling sleeve I4, three-axis gear 9, differential gear 17, differential 16, drive half shaft 15 and finally transmitted to the wheels; the power output by the drive motor II12 passes through the drive motor II12 Output shaft, gearbox input shaft II13, adapter sleeve II10, input shaft II13 gear 11, intermediate shaft gear III8, intermediate shaft 5, intermediate shaft gear II7, three shaft gear 9, differential gear 17, differential 16, Drive half shaft 15 and finally transfer to the wheel;
步骤1.5、如图6所示，从双电机中间挡过渡到驱动电机Ⅰ1单独工作于高速挡，接合套Ⅱ10与输入轴齿轮Ⅱ11分离，动力传输路线为：由驱动电机Ⅰ1输出的动力，经驱动电机Ⅰ1的输出轴、变速箱输入轴Ⅰ2、接合套Ⅰ4、三轴齿轮9、差速器齿轮17、差速器16、驱动半轴15，最后到传递到车轮；Step 1.5. As shown in FIG. 6, the transition from the dual-motor intermediate gear to the drive motor I1 works alone in the high-speed gear. The coupling sleeve II10 is separated from the input shaft gear II11. The power transmission route is: the power output by the drive motor I1 is driven by The output shaft of the motor I1, the input shaft I2 of the gearbox, the coupling sleeve I4, the three-shaft gear 9, the differential gear 17, the differential 16, the drive half shaft 15 and finally transmitted to the wheels;
步骤1.6、如图7所示，从驱动电机Ⅰ1单独工作于高速挡过渡到双电机高速挡，调节驱动电机Ⅱ12的转速，当驱动电机Ⅱ12的转速与驱动电机Ⅰ1转速相同，方向相同时，接合套Ⅱ10与三轴齿轮9结合，使三轴齿轮9与输入轴Ⅱ13固定连接，动力传输路线为：驱动电机Ⅰ1输出的动力，经驱动电机Ⅰ1的输出轴、变速箱输入轴Ⅰ2、接合套Ⅰ4、三轴齿轮9、差速器齿轮17、差速器16、驱动半轴15，最后到传递到车轮；由驱动电机Ⅱ12输出的动力，经驱动电机Ⅱ12的输出轴、变速箱输入轴Ⅱ13、接合套Ⅱ10、三轴齿轮9、差速器齿轮17、差速器16、驱动半轴15，最后到传递到车轮。Step 1.6. As shown in FIG. 7, transition from the driving motor I1 working alone in the high-speed gear to the dual-motor high-speed gear, adjust the speed of the driving motor II12, and when the speed of the driving motor II12 is the same as the speed of the driving motor I1 and the direction is the same, engage The sleeve Ⅱ10 is combined with the three-shaft gear 9 to make the three-shaft gear 9 fixedly connected to the input shaft Ⅱ13. The power transmission route is: the power output by the drive motor I1, the output shaft of the drive motor I1, the gearbox input shaft I2, and the coupling sleeve I4 , Three-axis gear 9, differential gear 17, differential 16, drive half shaft 15, and finally transmitted to the wheels; the power output by the drive motor II12, via the output shaft of the drive motor II12, the gearbox input shaft II13, The coupling sleeve II 10, the three-axle gear 9, the differential gear 17, the differential 16, and the drive half shaft 15 are finally transmitted to the wheels.
步骤2、从双电机高速挡变为双电机低速挡： Step 2. Change from dual-motor high-speed gear to dual-motor low-speed gear:
步骤2.1、从双电机高速挡过渡到驱动电机Ⅰ1单独工作于高速挡：接合套Ⅱ10与三轴齿轮9分离，动力传输路线为：由驱动电机Ⅰ1输出的动力，经驱动电机Ⅰ1的输出轴、变速箱输入轴Ⅰ2、接合套Ⅰ4、三轴齿轮9、差速器齿轮17、差速器16、驱动半轴15，最后到传递到车轮；Step 2.1. Transition from dual-motor high-speed gear to drive motor I1 working alone in high-speed gear: the coupling sleeve II 10 is separated from the three-axis gear 9, the power transmission route is: the power output by the drive motor I1, via the output shaft of the drive motor I1, Gearbox input shaft I2, adapter sleeve I4, three-axis gear 9, differential gear 17, differential 16, drive half shaft 15, and finally to the wheel;
步骤2.2、从驱动电机Ⅰ1单独工作于高速挡过渡到双电机中间挡：调节驱动电机Ⅱ12的转速，当驱动电机Ⅱ12的转速匹配到三轴齿轮9的转速与驱动电机Ⅰ1传递到三轴齿轮9的转速相同时，接合套Ⅱ10与输入轴齿轮Ⅱ11结合，使输入轴齿轮Ⅱ11与输入轴Ⅱ13固定连接，驱动电机Ⅰ1和驱动电机Ⅱ12匹配到三轴齿轮9的转速相同，方向相同；动力传输路线为：由驱动电机Ⅰ1输出的动力，经驱动电机Ⅰ1的输出轴、变速箱输入轴Ⅰ2、 接合套Ⅰ4、三轴齿轮9、差速器齿轮17、差速器16、驱动半轴15，最后到传递到车轮；由驱动电机Ⅱ12输出的动力，经驱动电机Ⅱ12的输出轴、变速箱输入轴Ⅱ13、接合套Ⅱ10、输入轴Ⅱ13齿轮11、中间轴齿轮Ⅲ8、中间轴5、中间轴齿轮Ⅱ7、三轴齿轮9、差速器齿轮17、差速器16、驱动半轴15，最后到传递到车轮；Step 2.2. Transition from drive motor I1 to high-speed gear alone to double-motor intermediate gear: adjust the speed of drive motor II12. When the speed of drive motor II12 matches the speed of three-axis gear 9 and the transmission of drive motor I1 to three-axis gear 9 When the rotation speed is the same, the coupling sleeve Ⅱ10 is combined with the input shaft gear II11, so that the input shaft gear II11 and the input shaft II13 are fixedly connected, the drive motor I1 and the drive motor II12 are matched to the same speed of the three-axis gear 9, and the direction is the same; the power transmission route For: the power output by the drive motor I1, via the output shaft of the drive motor I1, the gearbox input shaft I2, the coupling sleeve I4, the three-axis gear 9, the differential gear 17, the differential 16, the drive half shaft 15, and finally To the wheels; the power output by the drive motor II12, via the output shaft of the drive motor II12, the gearbox input shaft II13, the coupling sleeve II10, the input shaft II13 gear 11, the intermediate shaft gear III8, the intermediate shaft 5, the intermediate shaft gear II7 , Three-axle gear 9, differential gear 17, differential 16, drive half shaft 15, and finally to the wheel;
步骤2.3、从双电机中间挡过渡到驱动电机Ⅱ12单独工作于低速挡：接合套Ⅰ4与三轴齿轮9分离，动力传输路线为：由驱动电机Ⅱ12输出的动力，经驱动电机Ⅱ12的输出轴、变速箱输入轴Ⅱ13、接合套Ⅱ10、输入轴Ⅱ13齿轮11、中间轴齿轮Ⅲ8、中间轴5、中间轴齿轮Ⅱ7、三轴齿轮9、差速器齿轮17、差速器16、驱动半轴15，最后到传递到车轮；Step 2.3. Transition from dual-motor intermediate gear to drive motor II12 working alone in low-speed gear: coupling sleeve I4 is separated from triaxial gear 9, the power transmission route is: the power output from drive motor II12, via the output shaft of drive motor II12, Gearbox input shaft II13, adapter sleeve II10, input shaft II13 gear 11, intermediate shaft gear III8, intermediate shaft 5, intermediate shaft gear II7, three shaft gear 9, differential gear 17, differential 16, drive half shaft 15 , And finally passed to the wheel;
步骤2.4、从驱动电机Ⅱ12单独工作于低速挡过渡到驱动电机Ⅰ1与驱动电机Ⅱ12同时工作于低速挡：调整驱动电机Ⅰ1的转速，当驱动电机Ⅰ1的转速匹配到中间轴5齿轮的转速与与驱动电机Ⅱ12传递到中间轴5的转速相同时，接合套Ⅰ4与输入轴齿轮Ⅰ3结合，使输入轴齿轮Ⅰ3与输入轴Ⅰ2固定连接，动力传输路线为：由驱动电机Ⅰ11的输出动力，经由驱动电机Ⅰ1的输出轴、输入轴Ⅰ2、接合套Ⅰ4、输入轴齿轮Ⅰ3、中间轴齿轮Ⅰ6、中间轴5、中间轴齿轮Ⅱ7、三轴齿轮9、差速器齿轮17、差速器16、驱动半轴15，最后传递到车轮；由驱动电机Ⅱ12输出的动力，经驱动电机Ⅱ12的输出轴、变速箱输入轴Ⅱ13、接合套Ⅱ10、输入轴齿轮Ⅱ11、中间轴齿轮Ⅲ8、中间轴5、中间轴齿轮Ⅱ7、三轴齿轮9、差速器齿轮17、差速器16、驱动半轴15，最后到传递到车轮。Step 2.4. Transition from the drive motor II12 working alone in the low speed gear to the drive motor I1 and the drive motor II12 working in the low speed gear at the same time: adjust the speed of the drive motor I1, when the speed of the drive motor I1 matches the speed of the intermediate shaft 5 gear and When the rotation speed of the drive motor II12 transmitted to the intermediate shaft 5 is the same, the coupling sleeve I4 is combined with the input shaft gear I3, so that the input shaft gear I3 is fixedly connected to the input shaft I2, and the power transmission route is: the output power of the drive motor I11 is driven by Output shaft of motor I1, input shaft I2, adapter sleeve I4, input shaft gear I3, intermediate shaft gear I6, intermediate shaft 5, intermediate shaft gear II 7, triaxial gear 9, differential gear 17, differential 16, drive The half shaft 15 is finally transmitted to the wheels; the power output by the drive motor II12 passes through the output shaft of the drive motor II12, the transmission input shaft II13, the coupling sleeve II10, the input shaft gear II11, the countershaft gear III8, the countershaft 5, the middle The axle gear II7, the three-axle gear 9, the differential gear 17, the differential 16, and the drive half shaft 15 are finally transmitted to the wheels.
步骤3、倒挡模式下的控制，如图8所示，驱动电机Ⅰ1工作于低速挡，接合套Ⅰ4与输入轴齿轮Ⅰ3结合，输入轴齿轮Ⅰ3与输入轴固定连接；动力传递路线为：由驱动电机Ⅰ1输出的动力，经由驱动电机Ⅰ1的输出轴、输入轴Ⅰ2、接合套Ⅰ4、输入轴齿轮Ⅰ3、中间轴齿轮Ⅰ6、中间轴5、中间轴齿轮Ⅱ7、三轴齿轮9、差速器齿轮17、差速器16、驱动半轴15，最后传递到车轮。 Step 3. Control in reverse gear mode, as shown in Figure 8, the drive motor I1 works in low speed gear, the coupling sleeve I4 is combined with the input shaft gear I3, the input shaft gear I3 is fixedly connected to the input shaft; the power transmission route is: The power output by the drive motor I1, via the output shaft of the drive motor I1, the input shaft I2, the coupling sleeve I4, the input shaft gear I3, the intermediate shaft gear I6, the intermediate shaft 5, the intermediate shaft gear II7, the triaxial gear 9, the differential The gear 17, the differential 16, the drive axle 15 are finally transmitted to the wheels.
步骤4、各挡位模式下的制动控制，如图9所示： Step 4. The braking control in each gear mode is shown in Figure 9:
步骤4.1、当汽车在双电机低速挡模式驱动行驶时，踩动制动踏板进行制动，此时动力传递路线为：输入的动力依次经过车轮、驱动半轴15、差速器16、差速器齿轮17、三轴齿轮9、中间轴齿轮Ⅱ7、中间轴5、中间轴齿轮Ⅰ6、输入轴齿轮Ⅰ3、接合套Ⅰ4、输入轴Ⅰ2，最后拖动驱动电机Ⅰ1发电，然后经车轮、驱动半轴15、差速器16、差速器齿轮17、三轴齿轮9、中间轴齿轮Ⅱ7、中间轴5、中间轴齿轮Ⅲ8、输入轴齿轮Ⅱ11、接合套Ⅱ10、输入轴Ⅱ13，最后拖动驱动电机Ⅱ12发电；当电池电量充满时，改为机械制动；Step 4.1. When the car is driving in the dual-motor low-speed gear mode, step on the brake pedal to brake. At this time, the power transmission route is: the input power passes through the wheel, the drive half shaft 15, the differential 16, and the differential Gear 17, three-shaft gear 9, intermediate shaft gear II7, intermediate shaft 5, intermediate shaft gear I6, input shaft gear I3, coupling sleeve I4, input shaft I2, and finally drive the drive motor I1 to generate electricity, and then through the wheel, drive half Shaft 15, differential 16, differential gear 17, triaxial gear 9, intermediate shaft gear II7, intermediate shaft 5, intermediate shaft gear III8, input shaft gear II11, coupling sleeve II10, input shaft II13, and finally drive Motor II12 generates electricity; when the battery is full, change to mechanical brake;
步骤4.2、如图10所示，当汽车在双电机中间挡模式驱动行驶时，踩动制动踏板进行制动，此时动力传递路线为：输入的动力依次经车轮、驱动半轴15、差速器16、差速器齿轮17、三轴齿轮9、接合套Ⅰ4、输入轴Ⅰ2，最后拖动驱动电机Ⅰ1发电，然后经车轮、 驱动半轴15、差速器16、差速器齿轮17、三轴齿轮9、中间轴齿轮Ⅱ7、中间轴5、中间轴齿轮Ⅲ8、输入轴齿轮Ⅱ11、接合套Ⅱ10、输入轴Ⅱ13，最后拖动驱动电机Ⅱ12发电；当电池电量充满时，改为机械制动；Step 4.2. As shown in FIG. 10, when the car is driving in the dual-motor mid-range mode, step on the brake pedal to brake. At this time, the power transmission route is: the input power is sequentially passed through the wheel, the drive half shaft 15, and the difference The speed changer 16, the differential gear 17, the three-axis gear 9, the coupling sleeve I4, the input shaft I2, and finally drive the drive motor I1 to generate electricity, and then pass the wheels, drive half shaft 15, differential 16, differential gear 17 , Three-axis gear 9, intermediate shaft gear II7, intermediate shaft 5, intermediate shaft gear III8, input shaft gear II11, coupling sleeve II10, input shaft II13, and finally drive the drive motor II12 to generate electricity; when the battery is full, change to mechanical brake;
步骤4.3、如图11所示，当汽车在双电机高速挡模式驱动行驶时，踩动制动踏板进行制动，动力传递路线为：输入的动力依次经车轮、驱动半轴15、差速器16、差速器齿轮17、三轴齿轮9、接合套Ⅰ4、输入轴Ⅰ2，最后拖动驱动电机Ⅰ1发电，然后经车轮、驱动半轴15、差速器16、差速器齿轮17、三轴齿轮9、接合套Ⅱ10、输入轴Ⅱ13，最后拖动驱动电机Ⅱ12发电；当电池电量充满时，改为机械制动。Step 4.3. As shown in FIG. 11, when the car is driving in the dual-motor high-speed gear mode, step on the brake pedal to brake, the power transmission route is: the input power is sequentially passed through the wheels, the drive half shaft 15, the differential 16. Differential gear 17, three-shaft gear 9, coupling sleeve I4, input shaft I2, and finally drive the drive motor I1 to generate electricity, and then pass the wheel, drive half shaft 15, differential 16, differential gear 17, three Shaft gear 9, coupling sleeve II 10, input shaft II 13, and finally drive the motor II 12 to generate electricity; when the battery is full, change to mechanical brake.
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请公开的范围内，能够轻易想到的变化或替换，都应涵盖在本申请权利要求的保护范围内。The above are only specific implementations of the present application, but the scope of protection of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the scope disclosed in the present application. It should be covered by the protection scope of the claims of this application.

Claims (7)

  1. 一种双电机横置电驱动桥总成***，其特征在于，包括：驱动电机Ⅰ、输入轴Ⅰ、输入轴齿轮Ⅰ、接合套Ⅰ、中间轴、中间轴齿轮Ⅰ、中间轴齿轮Ⅱ、中间轴齿轮Ⅲ、三轴齿轮、接合套Ⅱ、输入轴齿轮Ⅱ、驱动电机Ⅱ、输入轴Ⅱ、三轴、驱动半轴、差速器、差速器齿轮、驱动车轮、花键连接A、花键连接B；所述输入轴齿轮Ⅰ空套在输入轴Ⅰ上，中间轴齿轮Ⅰ、中间轴齿轮Ⅱ、中间轴齿轮Ⅲ固定连接在中间轴上；所述三轴齿轮固定连接在三轴上，差速器齿轮固定连接在差速器壳体上；所述接合套Ⅰ固定连接在输入轴Ⅰ上并在输入轴齿轮Ⅰ和三轴齿轮之间能与输入轴齿轮Ⅰ和三轴齿轮结合或分离，接合套Ⅱ固定连接在输入轴Ⅱ上并在输入轴齿轮Ⅱ和三轴齿轮之间能与输入轴齿轮Ⅱ和三轴齿轮结合或分离。A dual-motor transverse electric drive axle assembly system, which is characterized by comprising: drive motor I, input shaft I, input shaft gear I, coupling sleeve I, intermediate shaft, intermediate shaft gear I, intermediate shaft gear II, intermediate Shaft gear III, triaxial gear, coupling sleeve II, input shaft gear II, drive motor II, input shaft II, triaxial, drive axle, differential, differential gear, drive wheels, spline connection A, spline Key connection B; the input shaft gear I is sleeved on the input shaft I, the intermediate shaft gear I, the intermediate shaft gear II, and the intermediate shaft gear III are fixedly connected to the intermediate shaft; the three shaft gears are fixedly connected to the three shafts , The differential gear is fixedly connected to the differential case; the coupling sleeve I is fixedly connected to the input shaft I and can be combined with the input shaft gear I and the triaxial gear between the input shaft gear I and the triaxial gear Or separated, the coupling sleeve II is fixedly connected to the input shaft II and can be combined with or separated from the input shaft gear II and the three-axis gear between the input shaft gear II and the three-axis gear.
  2. 根据权利要求1所述的双电机横置电驱动桥总成***，其特征在于，由所述输入轴齿轮Ⅰ和中间轴齿轮Ⅰ组成一档齿轮组，由输入轴齿轮Ⅱ和中间轴齿轮Ⅲ组成二档齿轮组；由中间轴齿轮Ⅱ和三轴齿轮组成减速齿轮组，由三轴齿轮和差速器齿轮组成减速齿轮组。The dual-motor transverse electric transaxle assembly system according to claim 1, characterized in that, the input shaft gear I and the intermediate shaft gear I form a first gear set, and the input shaft gear II and the intermediate shaft gear III It is composed of a second-speed gear set; a reduction gear set is composed of an intermediate shaft gear II and a three-axis gear, and a reduction gear set is composed of a three-axis gear and a differential gear.
  3. 一种如权利要求1或2所述的双电机横置电驱动桥总成***的换挡控制方法，其特征在于，包括以下步骤：A shift control method for a dual-motor transverse electric drive axle assembly system according to claim 1 or 2, characterized in that it includes the following steps:
    步骤1、双电机低速挡变为双电机高速挡；Step 1. The low-speed gear of the dual motor is changed to the high-speed gear of the dual motor;
    步骤2、从双电机高速挡变为双电机低速挡；Step 2. Change from dual-motor high-speed gear to dual-motor low-speed gear;
    步骤3、倒挡模式下的控制，驱动电机Ⅰ工作于低速挡，接合套Ⅰ与输入轴齿轮Ⅰ结合；Step 3. For the control in reverse gear mode, the drive motor Ⅰ works in the low-speed gear, and the coupling sleeve I is combined with the input shaft gear I;
    步骤4、各挡位模式下的制动控制。Step 4. Brake control in each gear mode.
  4. 根据权利要求3所述的换挡控制方法，其特征在于，所述步骤1包括以下步骤：The shift control method according to claim 3, wherein the step 1 includes the following steps:
    步骤1.1、从双电机低速挡过渡到驱动电机Ⅰ单独工作于低速挡，接合套Ⅰ与输入轴齿轮Ⅰ结合，使输入轴齿轮Ⅰ与输入轴Ⅰ固定连接，动力传输路线为：由驱动电机Ⅰ输出的动力，经由驱动电机Ⅰ的输出轴、输入轴Ⅰ、接合套Ⅰ、输入轴齿轮Ⅰ、中间轴齿轮Ⅰ、中间轴、中间轴齿轮Ⅱ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后传递到车轮；Step 1.1. Transition from dual-motor low-speed gear to drive motor I working alone in low-speed gear, coupling sleeve I is combined with input shaft gear I to make input shaft gear I and input shaft I fixedly connected, the power transmission route is: driven motor I The output power is driven by the output shaft of drive motor I, input shaft I, adapter sleeve I, input shaft gear I, countershaft gear I, countershaft, countershaft gear II, triaxial gear, differential gear, differential 、 Drive half axle, and finally transfer to the wheel;
    步骤1.2、从驱动电机Ⅰ单独工作于低速挡过渡到驱动电机Ⅰ与驱动电机Ⅱ同时工作于低速挡，调节驱动电机Ⅱ的转速并当驱动电机Ⅱ的转速匹配到中间轴的转速与驱动电机Ⅰ传递到中间轴的转速相同时，接合套Ⅱ与输入轴齿轮Ⅱ结合，使输入轴齿轮Ⅱ与输入轴Ⅱ固定连接，驱动电机Ⅰ和驱动电机Ⅱ匹配到中间轴的转速相同，方向相同；动力传输路线为：由驱动电机Ⅰ的输出动力，经由驱动电机Ⅰ的输出轴、输入轴Ⅰ、接合套Ⅰ、输入轴齿轮Ⅰ、中间轴齿轮Ⅰ、中间轴、中间轴齿轮Ⅱ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后传递到车轮；由驱动电机Ⅱ输出的动力，经驱动电机Ⅱ的输出轴、变速箱输入 轴Ⅱ、接合套Ⅱ、输入轴齿轮Ⅱ、中间轴齿轮Ⅲ、中间轴、中间轴齿轮Ⅱ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后到传递到车轮；Step 1.2. Transition from drive motor I working in low speed gear to drive motor I and drive motor II working in low speed gear at the same time, adjust the speed of drive motor II and match the speed of drive motor II to the speed of intermediate shaft and drive motor I When the rotation speed transmitted to the intermediate shaft is the same, the coupling sleeve II is combined with the input shaft gear II, so that the input shaft gear II and the input shaft II are fixedly connected, and the driving motor I and the driving motor II are matched to the same rotation speed of the intermediate shaft and the same direction; The transmission route is: from the output power of the drive motor I, through the output shaft of the drive motor I, the input shaft I, the coupling sleeve I, the input shaft gear I, the intermediate shaft gear I, the intermediate shaft, the intermediate shaft gear II, the three-axis gear, Differential gears, differentials, drive axles, and finally transmitted to the wheels; the power output by the drive motor II, the output shaft of the drive motor II, the transmission input shaft II, the coupling sleeve II, the input shaft gear II, the middle Axle gear III, intermediate shaft, intermediate shaft gear II, three-axis gear, differential gear, differential, drive axle, and finally to the wheel;
    步骤1.3、由从驱动电机Ⅰ与驱动电机Ⅱ同时工作于低速挡过渡到驱动电机Ⅱ单独工作于低速挡，接合套Ⅰ与输入轴齿轮Ⅰ分离，动力传输路线为：由驱动电机Ⅱ输出的动力，经驱动电机Ⅱ的输出轴、输入轴Ⅱ、接合套Ⅱ、输入轴齿轮Ⅱ、中间轴齿轮Ⅲ、中间轴、中间轴齿轮Ⅱ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后到传递到车轮；Step 1.3: The transition from driving motor I and driving motor II working in low speed gear to driving motor II working in low speed gear separately, coupling sleeve I is separated from input shaft gear I, the power transmission route is: the power output by driving motor II , Via the output shaft, input shaft II, coupling sleeve II, input shaft gear II, intermediate shaft gear III, intermediate shaft, intermediate shaft gear II, triaxial gear, differential gear, differential, drive half of the drive motor II The shaft, and finally to the wheel;
    步骤1.4、从驱动电机Ⅱ单独工作于低速挡过渡到双电机中间挡，调节驱动电机Ⅰ的转速，当驱动电机Ⅰ的转速匹配到三轴齿轮的转速与驱动电机Ⅱ传递到三轴齿轮的转速相同时，接合套Ⅰ与三轴齿轮结合，输入轴Ⅰ与三轴齿轮固定连接，动力传输路线为：由驱动电机Ⅰ输出的动力，经驱动电机Ⅰ的输出轴、输入轴Ⅰ、接合套Ⅰ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后到传递到车轮；由驱动电机Ⅱ输出的动力，经驱动电机Ⅱ的输出轴、变速箱输入轴Ⅱ、接合套Ⅱ、输入轴齿轮Ⅱ、中间轴齿轮Ⅲ、中间轴、中间轴齿轮Ⅱ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后到传递到车轮；Step 1.4. Transition from drive motor II to low-speed gear to mid-range of dual motor, adjust the speed of drive motor I. When the speed of drive motor I matches the speed of three-axis gear and the speed of drive motor II is transferred to the three-axis gear At the same time, the coupling sleeve I is combined with the three-axis gear, the input shaft I is fixedly connected with the three-axis gear, and the power transmission route is: the power output by the drive motor I, the output shaft of the drive motor I, the input shaft I, and the coupling sleeve I , Three-axis gears, differential gears, differentials, drive axles, and finally transmitted to the wheels; the power output by the drive motor II, the output shaft of the drive motor II, the input shaft of the gearbox II, the coupling sleeve II, Input shaft gear II, intermediate shaft gear III, intermediate shaft, intermediate shaft gear II, three shaft gear, differential gear, differential, drive axle, and finally to the wheel;
    步骤1.5、从双电机中间挡过渡到驱动电机Ⅰ单独工作于高速挡，接合套Ⅱ与输入轴齿轮Ⅱ分离，动力传输路线为：由驱动电机Ⅰ输出的动力，经驱动电机Ⅰ的输出轴、变速箱输入轴Ⅰ、接合套Ⅰ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后到传递到车轮；Step 1.5: The transition from the dual-motor intermediate gear to the drive motor I works alone in the high-speed gear. The coupling sleeve II is separated from the input shaft gear II. The power transmission route is: the power output by the drive motor I. After the output shaft of the drive motor I, Gearbox input shaft I, coupling sleeve I, three-axis gear, differential gear, differential, drive half shaft, and finally to the wheel;
    步骤1.6、从驱动电机Ⅰ单独工作于高速挡过渡到双电机高速挡，调节驱动电机Ⅱ的转速，当驱动电机Ⅱ的转速与驱动电机Ⅰ转速相同，方向相同时，接合套Ⅱ与三轴齿轮结合，使三轴齿轮与输入轴Ⅱ固定连接，动力传输路线为：驱动电机Ⅰ输出的动力，经驱动电机Ⅰ的输出轴、变速箱输入轴Ⅰ、接合套Ⅰ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后到传递到车轮；由驱动电机Ⅱ输出的动力，经驱动电机Ⅱ的输出轴、变速箱输入轴Ⅱ、接合套Ⅱ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后到传递到车轮。Step 1.6. Transition from drive motor Ⅰ to high-speed gear alone, and adjust the speed of drive motor Ⅱ. When the speed of drive motor Ⅱ is the same as the speed of drive motor Ⅰ and the direction is the same, joint sleeve Ⅱ and three-axis gear Combine to make the three-axis gear fixedly connected with the input shaft II. The power transmission route is: the power output by the drive motor I, the output shaft of the drive motor I, the transmission input shaft I, the coupling sleeve I, the three-axis gear, and the differential Gears, differentials, drive axles, and finally transmitted to the wheels; the power output by the drive motor II, the output shaft of the drive motor II, the transmission input shaft II, the coupling sleeve II, the three-axis gear, the differential gear , Differential, drive axle, and finally to the wheels.
  5. 根据权利要求3或4所述的换挡控制方法，其特征在于，所述步骤2包括以下步骤：The shift control method according to claim 3 or 4, wherein the step 2 includes the following steps:
    步骤2.1、从双电机高速挡过渡到驱动电机Ⅰ单独工作于高速挡：接合套Ⅱ与三轴齿轮分离，动力传输路线为：由驱动电机Ⅰ输出的动力，经驱动电机Ⅰ的输出轴、变速箱输入轴Ⅰ、接合套Ⅰ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后到传递到车轮；Step 2.1. Transition from dual-motor high-speed gear to drive motor I working alone in high-speed gear: the coupling sleeve II is separated from the three-axis gear, and the power transmission route is: the power output by the drive motor I, the output shaft of the drive motor I, the speed change Box input shaft Ⅰ, coupling sleeve Ⅰ, three-axis gear, differential gear, differential, drive half shaft, and finally transmitted to the wheel;
    步骤2.2、从驱动电机Ⅰ单独工作于高速挡过渡到双电机中间挡：调节驱动电机Ⅱ的转速，当驱动电机Ⅱ的转速匹配到三轴齿轮的转速与驱动电机Ⅰ传递到三轴齿轮的转速相同时，接合套Ⅱ与输入轴齿轮Ⅱ结合，使输入轴齿轮Ⅱ与输入轴Ⅱ固定连接，驱动电机Ⅰ和驱动电机Ⅱ匹配到三轴齿轮的转速相同，方向相同；动力传输路线为：由驱动电机Ⅰ输出的动力，经驱动电机Ⅰ的输出轴、变速箱输入轴Ⅰ、接合套Ⅰ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后到传递到车轮；由驱动电机Ⅱ输出的动力，经驱动电机Ⅱ的输出 轴、变速箱输入轴Ⅱ、接合套Ⅱ、输入轴齿轮Ⅱ、中间轴齿轮Ⅲ、中间轴、中间轴齿轮Ⅱ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后到传递到车轮；Step 2.2. Transition from drive motor I to high-speed gear alone to double-motor intermediate gear: adjust the speed of drive motor II, when the speed of drive motor II matches the speed of the three-axis gear and the speed of drive motor I to the three-axis gear When they are the same, the coupling sleeve II is combined with the input shaft gear II to make the input shaft gear II and the input shaft II fixedly connected. The driving motor I and the driving motor II are matched to the same speed of the three-axis gear and the same direction; the power transmission route is: The power output by the drive motor I is transmitted to the wheels through the output shaft of the drive motor I, the input shaft I of the gearbox, the coupling sleeve I, the three-axis gear, the differential gear, the differential, the drive half shaft, and finally to the wheels; The power output by the motor II is driven by the output shaft of the drive motor II, the gearbox input shaft II, the coupling sleeve II, the input shaft gear II, the intermediate shaft gear III, the intermediate shaft, the intermediate shaft gear II, the triaxial gear, and the differential gear , Differential, drive axle, and finally to the wheel;
    步骤2.3、从双电机中间挡过渡到驱动电机Ⅱ单独工作于低速挡：接合套Ⅰ与三轴齿轮分离，动力传输路线为：由驱动电机Ⅱ输出的动力，经驱动电机Ⅱ的输出轴、变速箱输入轴Ⅱ、接合套Ⅱ、输入轴齿轮Ⅱ、中间轴齿轮Ⅲ、中间轴、中间轴齿轮Ⅱ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后到传递到车轮；Step 2.3. Transition from dual-motor intermediate gear to drive motor II working alone in low-speed gear: the coupling sleeve I is separated from the three-axis gear, and the power transmission route is: the power output by the drive motor II, the output shaft of the drive motor II, the speed change Box input shaft II, coupling sleeve II, input shaft gear II, intermediate shaft gear III, intermediate shaft, intermediate shaft gear II, three-axis gear, differential gear, differential, drive axle, and finally to the wheel;
    步骤2.4、从驱动电机Ⅱ单独工作于低速挡过渡到驱动电机Ⅰ与驱动电机Ⅱ同时工作于低速挡：调整驱动电机Ⅰ的转速，当驱动电机Ⅰ的转速匹配到中间轴齿轮的转速与驱动电机Ⅱ传递到中间轴的转速相同时，接合套Ⅰ与输入轴齿轮Ⅰ结合，使输入轴齿轮Ⅰ与输入轴Ⅰ固定连接，动力传输路线为：由驱动电机Ⅰ1的输出动力，经由驱动电机Ⅰ的输出轴、输入轴Ⅰ、接合套Ⅰ、输入轴齿轮Ⅰ、中间轴齿轮Ⅰ、中间轴、中间轴齿轮Ⅱ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后传递到车轮；由驱动电机Ⅱ输出的动力，经驱动电机Ⅱ的输出轴、变速箱输入轴Ⅱ、接合套Ⅱ、输入轴齿轮Ⅱ、中间轴齿轮Ⅲ、中间轴、中间轴齿轮Ⅱ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后到传递到车轮。Step 2.4. Transition from the drive motor II working alone in the low speed gear to the drive motor I and the drive motor II working in the low speed gear at the same time: adjust the speed of the drive motor I, when the speed of the drive motor I matches the speed of the countershaft gear and the drive motor When the speed of transmission to the intermediate shaft is the same, the coupling sleeve I is combined with the input shaft gear I to make the input shaft gear I and the input shaft I fixedly connected. The power transmission route is: the output power of the drive motor I1, via the drive motor I Output shaft, input shaft I, adapter sleeve I, input shaft gear I, intermediate shaft gear I, intermediate shaft, intermediate shaft gear II, three-axis gear, differential gear, differential, drive axle, and finally transmitted to the wheel ; The power output by the drive motor II, via the output shaft of the drive motor II, gearbox input shaft II, adapter sleeve II, input shaft gear II, intermediate shaft gear III, intermediate shaft, intermediate shaft gear II, three shaft gear, differential The gears, differentials, and drive axles are finally transmitted to the wheels.
  6. 根据权利要求3-5中任一项所述的换挡控制方法，其特征在于，所述步骤4包括以下步骤：The shift control method according to any one of claims 3-5, wherein the step 4 includes the following steps:
    步骤4.1、当汽车在双电机低速挡模式驱动行驶时，踩动制动踏板进行制动，此时动力传递路线为：输入的动力依次经过车轮、驱动半轴、差速器、差速器齿轮、三轴齿轮、中间轴齿轮Ⅱ、中间轴、中间轴齿轮Ⅰ、输入轴齿轮Ⅰ、接合套Ⅰ、输入轴Ⅰ，最后拖动驱动电机Ⅰ发电，然后经车轮、驱动半轴、差速器、差速器齿轮、三轴齿轮、中间轴齿轮Ⅱ、中间轴、中间轴齿轮Ⅲ、输入轴齿轮Ⅱ、接合套Ⅱ、输入轴Ⅱ，最后拖动驱动电机Ⅱ发电；当电池电量充满时，改为机械制动；Step 4.1. When the car is driving in the dual-motor low-speed gear mode, step on the brake pedal to brake. At this time, the power transmission route is: the input power passes through the wheel, the drive half shaft, the differential, and the differential gear in turn , Three-shaft gear, intermediate shaft gear II, intermediate shaft, intermediate shaft gear I, input shaft gear I, coupling sleeve I, input shaft I, and finally drive the drive motor I to generate electricity, and then pass the wheels, drive half shaft, differential , Differential gear, three-shaft gear, intermediate shaft gear II, intermediate shaft, intermediate shaft gear III, input shaft gear II, coupling sleeve II, input shaft II, and finally drive the drive motor II to generate electricity; when the battery is full, Change to mechanical brake;
    步骤4.2、当汽车在双电机中间挡模式驱动行驶时，踩动制动踏板进行制动，此时动力传递路线为：输入的动力依次经车轮、驱动半轴、差速器、差速器齿轮、三轴齿轮、接合套Ⅰ、输入轴Ⅰ，最后拖动驱动电机Ⅰ发电，然后经车轮、驱动半轴、差速器、差速器齿轮、三轴齿轮、中间轴齿轮Ⅱ、中间轴、中间轴齿轮Ⅲ、输入轴齿轮Ⅱ、接合套Ⅱ、输入轴Ⅱ，最后拖动驱动电机Ⅱ发电；当电池电量充满时，改为机械制动；Step 4.2. When the car is driving in the dual-motor mid-gear mode, step on the brake pedal to brake. At this time, the power transmission route is: the input power is sequentially passed through the wheels, the drive half shaft, the differential, and the differential gear. , Three-axis gear, coupling sleeve I, input shaft I, and finally drive the drive motor I to generate electricity, and then through the wheels, drive half shaft, differential, differential gear, three-axis gear, intermediate shaft gear II, intermediate shaft, Intermediate shaft gear III, input shaft gear II, coupling sleeve II, input shaft II, and finally drive the drive motor II to generate electricity; when the battery is full, change to mechanical brake;
    步骤4.3、当汽车在双电机高速挡模式驱动行驶时，踩动制动踏板进行制动，动力传递路线为：输入的动力依次经车轮、驱动半轴、差速器、差速器齿轮、三轴齿轮、接合套Ⅰ、输入轴Ⅰ，最后拖动驱动电机Ⅰ发电，然后经车轮、驱动半轴、差速器、差速器齿轮、三轴齿轮、接合套Ⅱ、输入轴Ⅱ，最后拖动驱动电机Ⅱ发电；当电池电量充满时，改为机械制动。Step 4.3: When the car is driving in the dual-motor high-speed gear mode, step on the brake pedal to brake, the power transmission route is: the input power is in turn through the wheel, the drive axle, the differential, the differential gear, the third Shaft gear, coupling sleeve I, input shaft I, and finally drive the motor I to generate electricity, and then through the wheels, drive half shaft, differential, differential gear, three-axis gear, coupling sleeve II, input shaft II, and finally drag Drive the motor II to generate electricity; when the battery is full, change to mechanical braking.
  7. 根据权利要求3-6中任一项所述的换挡控制方法，其特征在于，所述步骤3中，输入轴齿轮Ⅰ与输入轴固定连接；动力传递路线为：由驱动电机Ⅰ输出的动力，经由驱动电机Ⅰ的输出轴、输入轴Ⅰ、接合套Ⅰ、输入轴齿轮Ⅰ、中间轴齿轮Ⅰ、中间轴、中间轴齿轮Ⅱ、三轴齿轮、差速器齿轮、差速器、驱动半轴，最后传递到车轮。The shift control method according to any one of claims 3-6, wherein in step 3, the input shaft gear I is fixedly connected to the input shaft; the power transmission route is: the power output by the drive motor I , Via the output shaft of drive motor I, input shaft I, coupling sleeve I, input shaft gear I, intermediate shaft gear I, intermediate shaft, intermediate shaft gear II, three shaft gear, differential gear, differential, drive half The shaft finally passes to the wheel.
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CN108382187A (en) * 2018-03-27 2018-08-10 中国第汽车股份有限公司 Double-motor hybrid power system and its control method
CN109263454A (en) * 2018-10-23 2019-01-25 南京越博动力***股份有限公司 A kind of horizontal electric drive axle assembly system of bi-motor and shift control method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11135914B2 (en) * 2019-02-19 2021-10-05 Zf Friedrichshafen Ag Drive axle for electric vehicles
CN112406497A (en) * 2020-11-19 2021-02-26 北京汽车股份有限公司 Dual-motor torque vector control system and method, power assembly and vehicle
CN112406497B (en) * 2020-11-19 2022-04-29 北京汽车股份有限公司 Dual-motor torque vector control system and method, power assembly and vehicle

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