CN114179783A - Hybrid vehicle power control method and hybrid vehicle - Google Patents

Hybrid vehicle power control method and hybrid vehicle Download PDF

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Publication number
CN114179783A
CN114179783A CN202111574222.0A CN202111574222A CN114179783A CN 114179783 A CN114179783 A CN 114179783A CN 202111574222 A CN202111574222 A CN 202111574222A CN 114179783 A CN114179783 A CN 114179783A
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CN
China
Prior art keywords
motor
gearbox
hybrid vehicle
power
engine
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Pending
Application number
CN202111574222.0A
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Chinese (zh)
Inventor
温敏
刘聪聪
陈龙华
颜伟
洪学臣
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Anhui Jianghuai Automobile Group Corp
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Anhui Jianghuai Automobile Group Corp
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Application filed by Anhui Jianghuai Automobile Group Corp filed Critical Anhui Jianghuai Automobile Group Corp
Priority to CN202111574222.0A priority Critical patent/CN114179783A/en
Publication of CN114179783A publication Critical patent/CN114179783A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/40—Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
    • 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
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/24—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the combustion engines
    • 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
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • 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
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
    • 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
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • 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
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54—Transmission for changing ratio
    • B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Automation & Control Theory (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention discloses a power control method of a hybrid vehicle and the hybrid vehicle, wherein the hybrid vehicle comprises a front power system and a rear power system; the front power system comprises an engine, a clutch, a gearbox, a planetary gearbox, a differential mechanism, a first motor and an engine exhaust aftertreatment device, wherein the engine, the clutch, the gearbox, the planetary gearbox and the differential mechanism are sequentially connected, the first motor is connected with the gearbox, and the first motor and the engine exhaust aftertreatment device are respectively positioned on two sides of the gearbox along the width direction of the vehicle body; the rear power system comprises a second motor, a battery pack and an oil tank, the second motor is mounted on the rear axle, the battery pack is located between the first motor and the second motor, and the oil tank is mounted on one side, far away from the battery pack, of the second motor. The hybrid vehicle has various different power driving modes, can ensure the power requirement of the vehicle and improve the stability of gear shifting.

Description

Hybrid vehicle power control method and hybrid vehicle
Technical Field
The invention relates to the field of hybrid vehicles, in particular to a hybrid vehicle power control method and a hybrid vehicle.
Background
The traditional power vehicle type generally provides power for the vehicle by an engine, and with the tightening of regulations and the market demand, a hybrid vehicle type gradually appears. However, the existing hybrid vehicle models are mainly focused on small-sized vehicles. If the hybrid power is applied to a medium-large vehicle, the problems of insufficient power supply and unstable gear shifting can be caused.
Therefore, how to provide a power control method for a hybrid vehicle, which can ensure the power requirement of the vehicle and smooth gear shifting, becomes a technical problem to be solved urgently in the field.
Disclosure of Invention
The invention aims to provide a novel technical scheme of a hybrid vehicle power control method which can ensure the vehicle power demand and smooth gear shifting.
According to a first aspect of the invention, a hybrid vehicle power control method is provided.
The hybrid vehicle is characterized by comprising a front power system and a rear power system; wherein the content of the first and second substances,
the front power system comprises an engine, a clutch, a gearbox, a planetary gear box, a differential mechanism, a first motor and an engine exhaust aftertreatment device, wherein the engine, the clutch, the gearbox, the planetary gear box and the differential mechanism are sequentially connected, the first motor is connected with the gearbox, and the first motor and the engine exhaust aftertreatment device are respectively positioned on two sides of the gearbox along the width direction of a vehicle body;
the rear power system comprises a second motor, a battery pack and an oil tank, the second motor is installed on the rear axle, the battery pack is located between the first motor and the second motor, and the oil tank is installed on one side, far away from the battery pack, of the second motor.
Optionally, the gearbox is a two-shaft gearbox.
Alternatively, the engine is arranged on a central shaft of the front axle.
Optionally, the rear power system further comprises a muffler connected with the engine exhaust gas after-treatment device.
According to a second aspect of the present invention, a hybrid vehicle power control method is provided.
The power control method of the hybrid vehicle comprises the following steps:
the clutch is disconnected, the first motor drives the planetary gear box to work through the gearbox, and power is transmitted to the front wheel through the differential mechanism;
when the gearbox shifts gears, the second motor drives the rear wheels to work so as to supplement power.
Optionally, the method further comprises the following steps:
the clutch is engaged, the connection between the first motor and the gearbox is disconnected, and the engine drives the planetary gear to work through the gearbox and transmits power to the front wheel through the differential;
when the gearbox shifts gears, the second motor drives the rear wheels to work so as to supplement power.
Optionally, the method further comprises the following steps:
the clutch is engaged, the first motor and the engine drive the planetary gear to work through the gearbox, and power is transmitted to the front wheel through the differential;
when the gearbox shifts gears, the second motor drives the rear wheels to work so as to supplement power.
The hybrid vehicle has various different power driving modes, can ensure the power requirement of the vehicle and improve the stability of gear shifting.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural diagram of an embodiment of a hybrid vehicle of the present invention.
Fig. 2 is a schematic view of a power train of the hybrid vehicle of the present invention in a state in which the first motor is directly driven.
Fig. 3 is a schematic view of a power train of the hybrid vehicle of the present invention in an engine direct drive state.
Fig. 4 is a schematic view of a power train of the hybrid vehicle of the present invention in a state where the first motor and the engine are driven simultaneously.
Fig. 5 is a schematic view of a power train of the hybrid vehicle of the present invention in a state where the first motor is charged.
The figures are labeled as follows:
the engine-1, the clutch-2, the gearbox-3, the planetary gearbox-4, the differential-5, the first motor-6, the engine exhaust gas post-processor-7, the second motor-8, the battery pack-9, the oil tank-10 and the silencer-11.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
As shown in fig. 1, the hybrid vehicle of the invention includes a front power system and a rear power system.
The front powertrain comprises an engine 1, a clutch 2, a gearbox 3, a planetary gearbox 4, a differential 5, a first electric machine 6 and an engine exhaust gas aftertreatment 7.
The gearbox 3 can adopt a two-shaft structure, has the advantage of simple structure, and can generally adopt a 4-gear structure (namely four groups of gears) or a multi-gear structure. When the 4-gear structure is adopted, the structure of the gearbox 3 is compact. The first electric machine 6 may be incorporated into the first gear set of the gearbox 3 via a gear set so that power may be provided via the first gear set whilst the clutch provides reverse power by reversing the first and second electric machines 6, 8 without a reverse gear arrangement.
The engine 1, the clutch 2, the gearbox 3, the planetary gearbox 4 and the differential 5 are connected in sequence. The first motor 6 is connected to the transmission case 3, and the first motor 6 and the engine exhaust gas post-processor 7 are respectively located on both sides of the transmission case 3 in the vehicle body width direction. The first electric machine 6 and the engine exhaust gas post-processor 7 are respectively located on both sides of the transmission 3 in the width direction of the vehicle body to effectively balance the weight. The first motor 6 can be replaced according to different product requirements, is not limited by thickness, and can realize larger power output.
The planetary gearbox 4 can amplify the torque output by the gearbox 3 according to the ratio of 1:1 and 1 (2-3), and the torque is input to the differential 5, and the differential transmits the torque to the front tire through the front shaft and the universal joint.
The rear power system comprises a second motor 8, a battery pack 9 and an oil tank 10. The second motor 8 is mounted on the rear axle, and the battery pack 9 is located between the first motor 6 and the second motor 8. The oil tank 10 is installed at a side of the second motor 8 away from the battery pack 9.
The hybrid vehicle has various different power driving modes, can ensure the power requirement of the vehicle and improve the stability of gear shifting.
In one embodiment of the hybrid vehicle of the present invention, the transmission 3 is a two-shaft type transmission in order to control the overall vehicle cost.
In one embodiment of the hybrid vehicle of the present invention, the engine 1 is disposed on a center axis of a front axle.
In one embodiment of the hybrid vehicle of the present invention, the rear power system further includes a muffler 11, and the muffler 11 is connected to the engine exhaust gas post-processor 7. Typically, the muffler 11 is located at the rear of the entire vehicle.
The invention also provides a hybrid vehicle power control method based on the hybrid vehicle, which comprises the following steps:
the clutch is disconnected, the first motor drives the planetary gear box to work through the gearbox, and power is transmitted to the front wheel through the differential mechanism.
When the gearbox shifts gears, the second motor drives the rear wheels to work so as to supplement power.
As shown in fig. 2 (the arrow in the figure indicates the power transmission direction), the clutch 2 is disconnected, the first electric motor 6 transmits power to the meshing gear through the motor gear, and then transmits the power to the first gear driving gear through the transition gear, and the first gear driving gear can transmit power to the transmission output shaft through the input shaft of the transmission 3 and the gear sets of the various gears, so as to input the power to the planetary gearbox 4.
In the state of direct drive of the first motor 6, the second motor 8 may not be driven, or may participate in driving as needed. If the second motor 8 participates in driving, the vehicle is in a four-wheel driving state, and if the second motor 8 does not participate in driving, the vehicle is in a front driving state.
When the gearbox 3 shifts gears, there is the problem of interruption in front wheel power, and at this moment, the second motor 8 supplements power, can accomplish to shift the smooth transition of process.
In one embodiment of the power control method for a hybrid vehicle of the present invention, the method further includes the steps of:
the clutch is engaged, the connection between the first motor and the gearbox is disconnected, and the engine drives the planetary gear to work through the gearbox and transmits power to the front wheel through the differential.
When the gearbox shifts gears, the second motor drives the rear wheels to work so as to supplement power.
As shown in fig. 3 (the arrow indicates the power transmission direction), the clutch is engaged, the engaged gear connecting the first motor 6 and the transmission 3 is disengaged, and power is input to the driven gear through the input shaft of the transmission 3, through the driving gear, and then to the planetary gear box 4 through the output shaft of the transmission 3.
When the gearbox shifts gears, there is the problem of interruption in front wheel power, and at this moment, the second motor 8 supplements power, can accomplish to shift the smooth transition of process.
In one embodiment of the power control method for a hybrid vehicle of the present invention, the method further includes the steps of:
the clutch is engaged, and the first motor and the engine drive the planetary gear to work through the gearbox and transmit power to the front wheel through the differential.
When the gearbox shifts gears, the second motor drives the rear wheels to work so as to supplement power.
As shown in fig. 4 (the arrow indicates the power transmission direction), the clutch is engaged, the first electric machine 6 is engaged with the engaged gear connected to the transmission 3, and both the first electric machine 6 and the engine 1 can input power to the front wheels.
When the gearbox 3 shifts gears, there is the problem of interruption in front wheel power, and at this moment, the second motor 8 supplements power, can accomplish to shift the smooth transition of process.
As shown in fig. 5 (the arrow indicates the power transmission direction), when the amount of electricity in the battery pack 9 is insufficient, the first motor 6 needs to generate electricity, and the electricity generation state may be during traveling or during idling.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims (7)

1. A hybrid vehicle, comprising a front powertrain and a rear powertrain; wherein the content of the first and second substances,
the front power system comprises an engine, a clutch, a gearbox, a planetary gear box, a differential mechanism, a first motor and an engine exhaust aftertreatment device, wherein the engine, the clutch, the gearbox, the planetary gear box and the differential mechanism are sequentially connected, the first motor is connected with the gearbox, and the first motor and the engine exhaust aftertreatment device are respectively positioned on two sides of the gearbox along the width direction of a vehicle body;
the rear power system comprises a second motor, a battery pack and an oil tank, the second motor is installed on the rear axle, the battery pack is located between the first motor and the second motor, and the oil tank is installed on one side, far away from the battery pack, of the second motor.
2. The hybrid vehicle according to claim 1, wherein the transmission is a two-shaft transmission.
3. The hybrid vehicle according to claim 1, wherein the engine is disposed on a center shaft of a front axle.
4. The hybrid vehicle according to any one of claims 1 to 3, characterized in that the rear power system further includes a muffler connected with the engine exhaust aftertreatment device.
5. A hybrid vehicle power control method based on the hybrid vehicle according to any one of claims 1 to 4, characterized by comprising the steps of:
the clutch is disconnected, the first motor drives the planetary gear box to work through the gearbox, and power is transmitted to the front wheel through the differential mechanism;
when the gearbox shifts gears, the second motor drives the rear wheels to work so as to supplement power.
6. The power control method for a hybrid vehicle according to claim 5, characterized by further comprising the steps of:
the clutch is engaged, the connection between the first motor and the gearbox is disconnected, and the engine drives the planetary gear to work through the gearbox and transmits power to the front wheel through the differential;
when the gearbox shifts gears, the second motor drives the rear wheels to work so as to supplement power.
7. The power control method for a hybrid vehicle according to claim 5, characterized by further comprising the steps of:
the clutch is engaged, the first motor and the engine drive the planetary gear to work through the gearbox, and power is transmitted to the front wheel through the differential;
when the gearbox shifts gears, the second motor drives the rear wheels to work so as to supplement power.
CN202111574222.0A 2021-12-21 2021-12-21 Hybrid vehicle power control method and hybrid vehicle Pending CN114179783A (en)

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