CN111114290A - Multimode double-gear-ring-meshing hybrid power driving system - Google Patents

Multimode double-gear-ring-meshing hybrid power driving system Download PDF

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Publication number
CN111114290A
CN111114290A CN202010076769.7A CN202010076769A CN111114290A CN 111114290 A CN111114290 A CN 111114290A CN 202010076769 A CN202010076769 A CN 202010076769A CN 111114290 A CN111114290 A CN 111114290A
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China
Prior art keywords
gear
motor
planet
power
engine
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CN202010076769.7A
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Chinese (zh)
Inventor
梁欢文
王豫
陈军
段福海
何思杰
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Guangzhou Xinyu Power Technology Co Ltd
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Guangzhou Xinyu Power Technology Co Ltd
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Priority to CN202010076769.7A priority Critical patent/CN111114290A/en
Publication of CN111114290A publication Critical patent/CN111114290A/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
    • 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
    • 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
    • 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
    • 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
    • B60K6/42—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 the architecture of the hybrid electric vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
    • B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
    • B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
    • B60T1/062—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels acting on transmission parts
    • 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)
  • Hybrid Electric Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention discloses a multimode double-gear-ring-meshing hybrid power driving system.A first planet row mechanism is driven by an engine and a first motor in a combined manner, the first planet row mechanism drives a second planet row mechanism, the second planet row mechanism is connected with a second motor in a driving manner and also drives a differential mechanism assembly, the structure of the double-planet row mechanism which adopts two groups of parallel shaft layouts and is directly connected is simple and has high reliability, and when the energy flow control of a controller is adopted, the engine can be ensured to work in the best oil consumption area as far as possible; when the engine and the motor are braked or separated by selecting different combined brakes, various driving modes including independent driving of each power source, pairwise combined ECVT driving, three-combined ECVT driving and various extended ranges are realized, the mode switching mode is reliable, and the hybrid electric vehicle power system is an optimal design scheme for the hybrid electric vehicle.

Description

Multimode double-gear-ring-meshing hybrid power driving system
Technical Field
The invention belongs to a vehicle power transmission system, and particularly relates to a hybrid power driving system based on a double-toothed ring meshing transmission framework.
Background
The global environment protection calling is rising day by day, various electric vehicles and hybrid electric vehicles stand out, but the battery technical problem hinders the development of electric vehicles, the charging time is long, the endurance is not enough, so that many people are prohibited to the electric vehicles, the fundamental problem cannot be solved by blindly increasing the battery pack, because the battery pack is increased to a certain degree, the endurance of the vehicle is extremely limited due to the fact that the power density of the vehicle-mounted battery which is commonly used at present is not high, and the manufacturing cost of the vehicle is greatly increased. The conventional internal combustion engine (diesel engine or gasoline engine) and the conventional electric motor are used as power sources to drive the vehicle to run independently or jointly, and the hybrid electric vehicle has the cruising advantage of the conventional vehicle and realizes low emission and low energy consumption by combining the power characteristics of the electric motor.
The power source combination of the hybrid power system generally comprises an internal combustion engine +1 motor series connection mode, an internal combustion engine +1 motor parallel connection mode and an internal combustion engine +2 motor series-parallel connection mode, different combination modes of the internal combustion engine and the motors also enable power and energy consumption performances of various hybrid power systems to have obvious differences, the internal combustion engine +2 motor series-parallel connection mode is undoubtedly the most advantageous mode in the hybrid power systems, and the switching of multiple driving modes can be realized on the basis of the internal combustion engine +2 motor series-parallel connection mode to well ensure that the vehicle can present excellent power performance and energy saving rate under various driving scenes and various vehicle speeds.
However, since the internal transmission components other than the engine and the motor are not yet improved significantly, there is a simple structure of the planetary system, and thus, more driving or manipulation modes are not realized, and the mode switching process is interrupted.
Disclosure of Invention
The invention aims to provide a multimode double-gear-ring meshing hybrid power driving system which is concise in transmission, high in reliability, balanced in oil consumption and rich in driving modes.
In order to solve the technical problems, the invention adopts the technical scheme that: a multimode double-gear-ring-meshing hybrid power driving system comprises an engine and two motors, wherein the engine and the first motor jointly drive a first planet row mechanism, the first planet row mechanism drives a second planet row mechanism, the second planet row mechanism is in transmission connection with a second motor, and the second planet row mechanism also drives a differential mechanism assembly.
Preferably, the first and second planet row mechanisms are each composed of a sun gear, planet gears, a ring gear and a planet carrier, the sun gear meshes with the transmission planet gears, the planet gears mesh with the transmission ring gear and the planet gears are coaxially mounted on the planet carrier; the engine drives a planet carrier of the first planetary gear train; the first motor drives a sun gear of the first planet row mechanism; the gear ring of the first planet row mechanism is meshed with the gear ring of the second planet row mechanism, the sun gear of the second planet row mechanism is in transmission connection with the second motor, and the planet carrier of the second planet row mechanism drives the differential assembly to output power.
Preferably, the planet carrier of the first planetary gear train transmits a first mode changing gear and the ring gear of the first planetary gear train also transmits a second mode changing gear, the mode changing gear is provided with a brake shaft, and the brake shaft is provided with a brake.
Preferably, the second motor and the third motor are led out of a brake shaft, and a brake is mounted on the brake shaft.
Preferably, the engine is arranged coaxially with the first electric machine; and the axes of the engine and the first motor are parallel to the axes of the second motor and the differential assembly.
By implementing the technical scheme, the two groups of parallel shafts are arranged and the directly connected double-planet-row mechanism is simple in structure and high in reliability, so that the engine can be ensured to work in the optimal oil consumption area as far as possible through the energy flow control of the controller; when the engine and the motor are braked or clutched by selecting different combined brakes, multiple driving modes including independent driving of each power source, pairwise combined ECVT driving, three-combined ECVT driving and multiple extended ranges are realized, the mode switching mode is reliable, and the hybrid electric vehicle power system is the best design scheme.
Drawings
FIG. 1 is a schematic diagram of a multi-mode dual ring gear mesh hybrid drive system.
In the figure: 1-an engine, 2-a first motor, 3-a second motor, 4-a spring damper, 5-an engine shaft, 6-a first motor shaft, 7-a first planet carrier, 8-a first planet wheel, 9-a first sun gear, 10-a first ring gear, 11-a first planet carrier gear, 12-a first mode change gear, 13-a second mode change gear, 14-a first brake shaft, 15-a second brake shaft, 16-a fourth brake shaft, 17-a first brake disc, 18-a second brake disc, 19-a fourth brake disc, 20-a first brake, 21-a second brake, 22-a fourth brake, 23-a second motor shaft, 24-a third brake shaft, 25-a third brake disc, 26-a third brake disc, 27-a second sun gear, 28-a second planet gear, 29-a second planet carrier, 30-a second ring gear, 31-a second planet carrier gear, 32-a differential gear, 33-a differential assembly, 34-a left half shaft, 35-a right half shaft, a-a first planet row mechanism, B-a second planet row mechanism.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1, the multimode double-ring-gear-meshing hybrid power drive system mainly comprises an engine 1, an elastic shock absorber 4, a first motor 2, a second motor 3, a first planet row mechanism a, a second planet row mechanism B, a differential assembly gear pair and four groups of brake mechanisms. The engine 1, the elastic shock absorber 4, the first planet row mechanism and the first motor 2 are coaxially arranged, and the second planet row mechanism, the second motor 3 and the differential assembly gear pair are mutually arranged in a parallel shaft mode.
The first planet row mechanism A consists of a first sun wheel 9, a first planet wheel 8, a first planet carrier 7 and a first gear ring 10, wherein the inner circumference of the first gear ring 10 is provided with an inner gear ring, the outer circumference is provided with an outer gear ring, the first planet wheel 8 is internally meshed with the inner gear ring of the first gear ring 10, the first planet wheel 8 is arranged on the first planet carrier 7, a first planet carrier gear 11 is fixedly arranged or directly arranged on the first planet carrier 7, the first planet carrier 7 is fixedly connected or directly arranged on an engine shaft 5, the engine 1 is connected with the engine shaft 5 through an elastic shock absorber 4, the first sun wheel 9 is externally meshed with the first planet wheel 8, the first sun wheel 9 is fixedly connected with a rotor of the first motor 2 through a first motor shaft 6, a fourth brake shaft 16 is arranged at the back of the first motor 2 and is fixedly connected with the rotor of the first motor 2, a fourth brake disc 19 is fixedly connected with the fourth brake shaft 16, the fourth brake disk 19 is installed between left and right pads of a fourth brake 22 with a certain gap, and the fourth brake 22 is responsible for braking and releasing the fourth brake disk 19.
The first die change gears 12 are uniformly distributed on the outer circumference of the first planet carrier gear 11, the first die change gears 12 are externally meshed with the first planet carrier gear 11 to form a first die change gear pair, the first die change gears 12 are fixedly connected with an externally arranged first brake disc 17 through a first brake shaft 14, the first brake disc 17 is arranged between left and right friction blocks of the first brake 20 according to a certain gap, and the first brake 20 is responsible for braking and releasing the first brake disc 17. It should be added here that the purpose of braking and releasing the first brake disk 17 is to brake and release the first carrier 7, but the braking and releasing method of the first carrier 7 using the model changing gear pair in combination with the brake disk is not limited thereto.
The plurality of second die change gears 13 are uniformly distributed on the circumference of the outer gear ring of the first gear ring 10, the second die change gears 13 are externally meshed with the outer gear ring of the first gear ring 10 to form a second die change gear pair, the second die change gears 13 are fixedly connected with an external second brake disc 18 through a second brake shaft 15, the second brake disc 18 is installed between left and right friction blocks of a second brake 21 according to a certain gap, and the second brake 21 is responsible for braking and releasing the second brake disc 18. It should be added here that the purpose of braking and releasing the second brake disk 18 is to brake and release the first gear ring 10 and the second gear ring 30, but the braking and releasing method is not limited to the method of braking and releasing the first gear ring 10 by using the mold changing gear pair in combination with the brake disk, and either of the two methods may be used.
The second planetary gear train B is composed of a second sun gear 27, a second planet gear 28, a second planet carrier 29 and a second ring gear 30, wherein, the inner circumference of the second gear ring 30 is processed with an inner gear ring, the outer circumference is processed with an outer gear ring, the outer gear ring of the second gear ring 30 is externally engaged with the outer gear ring of the first gear ring 10, the second planet wheel 28 is internally engaged with the inner gear ring of the second gear ring 30, the second planet wheel 28 is installed on the second planet carrier 29, the second sun wheel 27 is externally engaged with the second planet wheel 28, the second sun wheel 27 is fixedly connected with the rotor of the second motor 3 through the second motor shaft 23, the third brake shaft 24 is arranged at the back of the second motor 3 and is fixedly connected with the rotor of the second motor 3, the third brake disc 25 is fixedly connected with the third brake shaft 24, the third brake disc 25 is installed between the left and right friction blocks of the third brake disc 26 according to a certain gap, and the third brake disc 26 is responsible for braking and releasing of the third brake. It should be added here that the external gear ring of the first gear ring 10 and the external gear ring of the second gear ring 30 may be directly engaged, or may be engaged indirectly by engaging the first gear ring 10 and the second gear ring 30 through a transition gear, and the two sets of planetary gear sets are engaged directly or indirectly through the external gear of the gear ring to realize power engagement and stepless speed change, so as to ensure that the two motors operate in a high efficiency region.
The second planet carrier gear 31 is fixedly mounted or directly machined on the second planet carrier 29, the second planet carrier gear 31 is externally meshed with the differential gear 32 to form a differential gear pair, the differential gear 32 is fixedly mounted on the differential assembly, and the differential assembly outputs power through a left half shaft 34 and a left half shaft 35.
The multimode double-gear-ring-meshing hybrid power driving system can realize the following various driving modes.
1. Engine rapid start mode. The vehicle control unit sends out instructions to instruct a second brake 21 to lock a second brake disc 18, a first brake 20 to release a first brake disc 17, a fourth brake 22 to release a fourth brake disc 19, a third brake 26 to brake or release according to actual conditions, and further the first gear ring 10 and the second gear ring 30 are in a locked state.
The first motor 2 obtains electric energy from a vehicle-mounted power supply to generate power and transmits the power to the first sun gear 9 through the first motor shaft 6, the first sun gear 9 transmits the power to the first planet carrier 7 through the first planet gear 8, and the first planet carrier 7 transmits the power to the engine 1 through the elastic shock absorber 4 to reach the optimal starting rotating speed, so that the engine can be quickly started.
2. Neutral mode. The vehicle control unit sends a command to instruct the second brake 21 to release the second brake disc 18, the third brake 26 to release the third brake disc 25, the fourth brake disc 22 to release the fourth brake disc 19, and the first brake 20 can brake or release according to the actual situation, so that the first gear ring 10, the second gear ring 30 and the second sun gear 27 are in a free rotation state, and a neutral mode is realized.
3. A parking mode and a parking efficient power generation mode. When the whole vehicle is in the parking mode, the vehicle control unit sends an instruction to instruct the second brake 21 to lock the second brake disc 18, the first brake 20 to release the first brake disc 17, the fourth brake 22 to release the fourth brake disc 19, and the third brake 26 to lock the third brake disc 25, so that the first gear ring 10, the second gear ring 30, and the second sun gear 27 are all in a locked state, and the engine 1, the first motor 2, and the second motor 3 are all in a closed state, thereby realizing the parking mode.
When the whole vehicle is in a parking mode, the electric quantity of the vehicle-mounted power supply is lower than a preset value of the parking mode, the vehicle controller sends an instruction to execute the engine quick starting mode so as to instruct the first motor 2 to start the engine 1, after the engine quick starting mode is executed, the first motor 2 is converted into a power generation mode, the engine 1 transmits power to the first planet carrier 7 through the elastic shock absorber 4 through the engine shaft 5, the first planet carrier 7 transmits the power to the first sun gear 9 through the first planet gear 8, the first sun gear 9 transmits the power to the first motor 2 through the first motor shaft 6, the first motor 2 converts the power into electric energy, and the electric energy is stored in the vehicle-mounted power supply after being rectified by the controller, so that the parking efficient power generation mode is realized.
In this mode, the engine shaft 5 and the first motor shaft 6 satisfy the following relationship of rotation speed:
Figure BDA0002378681340000041
4. the second motor drive only mode. When the whole vehicle is in a medium-low speed large-torque running condition, the whole vehicle controller sends a command to instruct the second brake 21 to lock the second brake disc 18, the first brake 20 to release the first brake disc 17, the fourth brake 22 to release the fourth brake disc 19, the third brake 26 to release the third brake disc 25, further, the first gear ring 10 and the second gear ring 30 are in a locked state, and the engine 1 and the first motor 2 are in a closed state.
The second motor 3 obtains electric energy from a vehicle-mounted power supply to generate power and transmits the power to the second sun gear 27 through the second motor shaft 23, the second sun gear 27 transmits the power to the second planet carrier 29 through the second planet gear 28, the second planet carrier 29 transmits the power to the differential gear 32 through the second planet carrier gear 31, and the differential gear 32 transmits the power to the left half shaft 34 and the left half shaft 35 through the differential assembly 33, so that the independent driving mode of the second motor is realized.
In this mode, the differential assembly 33 and the second motor shaft 23 satisfy the following relationship:
Figure BDA0002378681340000051
wherein: z1 denotes the number of teeth of the first sun gear 9; z2 represents the number of inner teeth of the first ring gear 10; z3 represents the number of outer teeth of the first ring gear 10; z4 denotes the number of teeth of the second sun gear 27; z5 represents the number of internal teeth of the second ring gear 30; z6 represents the number of outer teeth of the second ring gear 30; z7 represents the number of teeth of the second carrier gear 31; z8 denotes the number of teeth of differential gear 32, n1 denotes the rotational speed of first motor shaft 6; ne represents the rotational speed of the engine shaft 5; n2 represents the rotational speed of the second motor shaft 23; n3 represents the speed of rotation of the differential assembly 33;
5. extended range hybrid drive mode. When the whole vehicle is in a medium-low speed large-torque running working condition and the electric quantity of the vehicle-mounted power supply is lower than a preset value of the mode, the whole vehicle controller sends an instruction to instruct a second brake 21 to lock a second brake disc 18, a first brake 20 to release a first brake disc 17, a fourth brake 22 to release a fourth brake disc 19, a third brake 26 to release a third brake disc 25, further, the first gear ring 10 and the second gear ring 30 are in a locking state, and simultaneously, the whole vehicle controller sends an instruction to execute an engine quick starting mode to instruct a first motor 2 to start the engine 1, and after the engine quick starting mode is executed, the first motor 2 is converted into a power generation mode.
The engine 1 transmits power to the first planet carrier 7 through the elastic shock absorber 4 through the engine shaft 5, the first planet carrier 7 transmits the power to the first sun gear 9 through the first planet gear 8, the first sun gear 9 transmits the power to the first motor 2 through the first motor shaft 6, the first motor 2 converts the power into electric energy, the electric energy is rectified by the controller and then preferentially supplied to the second motor 3 to run, and the residual electric energy is stored in the vehicle-mounted power supply. The second motor 3 jointly supplies power from the first motor 2 and the vehicle-mounted power supply to generate power and transmits the power to the second sun gear 27 through the second motor shaft 23, the second sun gear 27 transmits the power to the second planet carrier 29 through the second planet gear 28, the second planet carrier 29 transmits the power to the differential gear 32 through the second planet carrier gear 31, and the differential gear 32 transmits the power to the left half shaft 34 and the left half shaft 35 through the differential assembly 33, so that the range-increasing hybrid driving mode is realized.
In this mode, the engine shaft 5 and the first motor shaft 6 satisfy the following relationship of rotation speed:
Figure BDA0002378681340000061
in this mode, the differential assembly 33 and the second motor shaft 23 satisfy the following relationship:
Figure BDA0002378681340000062
6. engine-only drive mode.
When the whole vehicle is in a medium-high speed large-power running condition and the vehicle-mounted power supply electric quantity is higher than a preset value, the whole vehicle controller sends an instruction to instruct the second brake 21 to release the second brake disc 18, the first brake 20 to release the first brake disc 17, the fourth brake 22 to lock the fourth brake disc 19, and the third brake 26 to lock the third brake disc 25, so that the first gear ring 10 and the second gear ring 30 are in a free rotation state, the first sun gear 9 and the second sun gear 27 are in a locking state, and the first motor 2 and the second motor 3 are in a closing state.
The engine 1 transmits power to a first planet carrier 7 through an elastic shock absorber 4 through an engine shaft 5, the first planet carrier 7 transmits the power to a first gear ring 10 through a first planet wheel 8, the first gear ring 10 transmits the power to a second gear ring 30, the second gear ring 30 transmits the power to a second planet carrier 29 through a second planet wheel 28, the second planet carrier 29 transmits the power to a differential gear 32 through a second planet carrier gear 31, and the differential gear 32 transmits the power to a left half shaft 34 and a left half shaft 35 through a differential assembly 33, so that the engine single driving mode is realized.
In this mode, the differential assembly 33 and the engine shaft 5 satisfy the following speed relationship:
Figure BDA0002378681340000063
7. engine power split drive mode. When the whole vehicle is in an engine single driving mode, but the electric quantity of the vehicle-mounted power supply is lower than a preset value of the engine single driving mode, the whole vehicle controller sends instructions to instruct the second brake 21 to release the second brake disc 18, the first brake 20 to release the first brake disc 17, the fourth brake 22 to release the fourth brake disc 19, and the third brake 26 to lock the third brake disc 25, so that the first gear ring 10, the second gear ring 30 and the first sun gear 9 are in a free rotation state, the second sun gear 27 is in a locking state, the first motor 2 is in a power generation mode, and the second motor 3 is in a closing state.
The engine 1 transmits power to a first planet carrier 7 through an elastic shock absorber 4 through an engine shaft 5, the first planet carrier 7 transmits the power to a first planet wheel 8, the whole vehicle controller adjusts the power generation state of the first motor 2 according to the running condition of the whole vehicle, the first motor 2 forms corresponding load so as to guide the engine to realize power division, the first planet wheel 8 transmits part of the divided power to a first sun wheel 9, the first sun wheel 9 transmits the power to the first motor 2 through a first motor shaft 6, and the first motor 2 converts the power into electric energy which is stored in a vehicle-mounted power supply after being rectified by the controller. The first planetary gear 8 transmits the other part of the split power to the second gear ring 30 through the first gear ring 10, the second gear ring 30 transmits the power to the second planetary gear 29 through the second planetary gear 28, the second planetary gear 29 transmits the power to the differential gear 32 through the second planetary gear 31, and the differential gear 32 transmits the power to the left half shaft 34 and the left half shaft 35 through the differential assembly 33, so that the power split type driving mode of the engine is realized.
In this mode, the differential assembly 33, the engine shaft 5 and the first motor shaft 6 satisfy the following speed relationship:
Figure BDA0002378681340000071
8. the first motor alone drive mode. When the whole vehicle is in a medium-speed and medium-power running condition, the vehicle controller sends a command to instruct the second brake 21 to release the second brake disc 18, the first brake 20 to lock the first brake disc 17, the fourth brake 22 to release the fourth brake disc 19, and the third brake 26 to lock the third brake disc 25, so that the first gear ring 10 and the second gear ring 30 are in a free rotation state, the first planet carrier 7 and the second sun gear 27 are in a locking state, and the engine 1 and the second motor 3 are in a closed state.
The first motor 2 obtains electric energy from a vehicle-mounted power supply to generate power and transmits the power to the first sun gear 9 through the first motor shaft 6, the first sun gear 9 transmits the power to the first gear ring 10 through the first planet gear 8, the first gear ring 10 transmits the power to the second gear ring 30, the second gear ring 30 transmits the power to the second planet carrier 29 through the second planet gear 28, the second planet carrier 29 transmits the power to the differential gear 32 through the second planet carrier gear 31, and the differential gear 32 transmits the power to the left half shaft 34 and the left half shaft 35 through the differential assembly 33, so that the independent driving mode of the first motor is realized.
In this mode, the differential assembly 33 and the first motor shaft 6 satisfy the following relationship:
Figure BDA0002378681340000072
9. the first and second electric machines are associated with an ECVT drive mode. When the whole vehicle is in a medium-low speed overlarge torque or a medium-speed large power running working condition, the whole vehicle controller sends out instructions to instruct the second brake 21 to release the second brake disc 18, the first brake 20 to lock the first brake disc 17, the fourth brake 22 to release the fourth brake disc 19, the third brake 26 to release the third brake disc 25, further, the first planet carrier 7 is in a locked state, the first gear ring 10 and the second gear ring 30 are in a free rotation state, and the engine is in a closed state.
The first motor 2 obtains electric energy from a vehicle-mounted power supply to generate power and transmits the power to the first sun gear 9 through the first motor shaft 6, the first sun gear 9 transmits the power to the first gear ring 10 through the first planetary gear 8, the first gear ring 10 transmits the power to the second gear ring 30, the second gear ring 30 transmits the power to the second planet carrier 29 through the second planetary gear 28, the second motor 3 obtains electric energy from the vehicle-mounted power supply to generate power and transmits the power to the second sun gear 27 through the second motor shaft 23, the second sun gear 27 transmits the power to the second planet carrier 29 through the second planetary gear 28, the second planet carrier 29 superposes the power from the first motor 2 and the second motor 3 and transmits the superposed power to the differential gear 32 through the second planet carrier 31, and the differential gear 32 transmits the power to the left half shaft 34 and the left half shaft 35 through the differential assembly 33, so that the combined ECVT driving mode of the first motor and the second motor is realized.
In this mode, the differential assembly 33, the first motor shaft 6 and the second motor shaft 23 satisfy the following relationship:
Figure BDA0002378681340000081
10. the engine is associated with the first electric machine in an ECVT drive mode. When the whole vehicle is in a medium-high speed large-power running condition, the vehicle controller sends a command to instruct the second brake 21 to release the second brake disc 18, the first brake 20 to release the first brake disc 17, the fourth brake 22 to release the fourth brake disc 19, the third brake 26 to lock the third brake disc 25, further, the second sun gear 27 is in a locked state, the first gear ring 10 and the second gear ring 30 are in a free rotation state, and the second motor 3 is in a closed state.
The engine 1 transmits power to the first carrier 7 through the elastic damper 4 via the engine shaft 5, and the first carrier 7 transmits power to the first planetary gear 8. In addition, the first motor 2 obtains electric energy from a vehicle-mounted power supply to generate power, the power is transmitted to the first sun gear 9 through the first motor shaft 6, the power is transmitted to the first planet gear 8 through the first sun gear 9, the power from the engine 1 and the power from the first motor 2 are superposed by the first planet gear 8 and then transmitted to the first gear 10, the power is transmitted to the second gear 30 through the first ring gear 10, the power is transmitted to the second planet carrier 29 through the second planet gear 28 by the second planet carrier 30, the power is transmitted to the differential gear 32 through the second planet carrier 31 by the second planet carrier 29, the power is transmitted to the left half shaft 34 and the left half shaft 35 through the differential assembly 33 by the differential gear 32, and the engine and first motor combined ECVT driving mode is realized.
In this mode, the differential assembly 33, the engine shaft 5 and the first motor shaft 6 satisfy the following speed relationship:
Figure BDA0002378681340000082
11. the engine is associated with a second electric machine in an ECVT drive mode.
When the whole vehicle is in a high-speed high-power running condition, the vehicle controller sends a command to instruct the second brake 21 to release the second brake disc 18, the first brake 20 to release the first brake disc 17, the fourth brake 22 to lock the fourth brake disc 19, the third brake 26 to release the third brake disc 25, further, the first sun gear 9 is in a locked state, the first gear ring 10 and the second gear ring 30 are in a free rotation state, and the first motor 2 is in a closed state.
The engine 1 transmits power to the first carrier 7 through the elastic damper 4 via the engine shaft 5, the first carrier 7 transmits power to the first ring gear 10 via the first planetary gear 8, the first ring gear 10 transmits power to the second ring gear 30, and the second ring gear 30 transmits power to the second planetary carrier 29 via the second planetary gear 28. In addition, the second motor 3 obtains electric energy from a vehicle-mounted power supply to generate power and transmits the power to the second sun gear 27 through the second motor shaft 23, the second sun gear 27 transmits the power to the second planet carrier 29 through the second planet gear 28, the second planet carrier 29 superposes the power from the engine 1 and the second motor 3 and transmits the superposed power to the differential gear 32 through the second planet carrier 31, and the differential gear 32 transmits the power to the left half shaft 34 and the left half shaft 35 through the differential assembly 33, so that the engine and second motor combined ECVT driving mode is realized.
In this mode, the differential assembly 33, the engine shaft 5 and the second motor shaft 23 satisfy the following relationship of rotational speeds:
Figure BDA0002378681340000091
12. the engine, the first electric machine, and the second electric machine are associated with an ECVT drive mode. When the whole vehicle is in an engine and second motor combined ECVT driving mode, but the output power still does not meet the driving condition, the whole vehicle controller sends out instructions to instruct the second brake 21 to release the second brake disc 18, the first brake 20 to release the first brake disc 17, the fourth brake 22 to release the fourth brake disc 19, the third brake 26 to release the third brake disc 25, further, the first gear ring 10 and the second gear ring 30 are in a free rotation state, and the first motor is converted into a driving mode.
The engine 1 transmits power to a first planet carrier 7 through an elastic shock absorber 4 through an engine shaft 5, the first planet carrier 7 transmits the power to a first planet wheel 8, the first motor 2 obtains electric energy from a vehicle-mounted power supply to generate power and transmits the power to a first sun gear 9 through a first motor shaft 6, the first sun gear 9 transmits the power to the first planet wheel 8, the first planet wheel 8 superposes the power from the engine 1 and the first motor 2 and transmits the superposed power to a first gear ring 10, the first gear ring 10 transmits the power to a second gear ring 30, and the second gear ring 30 transmits the power to a second planet carrier 29 through a second planet wheel 28. In addition, the second motor 3 obtains electric energy from a vehicle-mounted power supply to generate power and transmits the power to the second sun gear 27 through the second motor shaft 23, the second sun gear 27 transmits the power to the second planet carrier 29 through the second planet gear 28, the second planet carrier 29 superposes the power from the engine 1, the first motor 2 and the second motor 3 and transmits the superposed power to the differential gear 32 through the second planet carrier 31, and the differential gear 32 transmits the power to the left half shaft 34 and the left half shaft 35 through the differential assembly 33, so that the engine, the first motor and the second motor are combined in an ECVT driving mode.
In this mode, the differential assembly 33, the engine shaft 5, the first motor shaft 6 and the second motor shaft 23 satisfy the following relationship of rotational speeds:
Figure BDA0002378681340000092
13. the engine, the first electric machine and the second electric machine are extended in a combined ECVT drive mode.
When the whole vehicle is in a high-speed high-power running condition and the electric quantity of the vehicle-mounted power supply is lower than a preset value of the mode, the vehicle controller sends a command to instruct the second brake 21 to release the second brake disc 18, the first brake 20 to release the first brake disc 17, the fourth brake 22 to release the fourth brake disc 19, the third brake 26 to release the third brake disc 25, further, the first gear ring 10 and the second gear ring 30 are in a free rotation state, and the first motor 2 is in a power generation mode.
The engine 1 transmits power to a first planet carrier 7 through an elastic shock absorber 4 through an engine shaft 5, the first planet carrier 7 transmits the power to a first planet wheel 8, the vehicle control unit adjusts the power generation power of the first motor 2 according to the running condition of the whole vehicle, the first motor 2 forms corresponding load so as to guide the engine to realize power division, the first planet wheel 8 transmits part of the divided power to a first sun gear 9, the first sun gear 9 transmits the power to the first motor 2 through a first motor shaft 6, the first motor 2 converts the power into electric energy, the electric energy is rectified by the controller and then preferentially supplied to a second motor 3 to run, and the residual electric energy is stored in a vehicle-mounted power supply. The first planet wheel 8 transmits another part of the split power via the first ring gear 10 to the second ring gear 30, and the second ring gear 30 transmits the power via the second planet wheel 28 to the second planet carrier 29. In addition, the second motor 3 obtains electric energy to generate power and transmits the power to the second sun gear 27 through the second motor shaft 23, the second sun gear 27 transmits the power to the second planet carrier 29 through the second planet gear 28, the second planet carrier 29 superposes the power from the engine 1 and the second motor 3 and transmits the superposed power to the differential gear 32 through the second planet carrier 31, and the differential gear 32 transmits the power to the left half shaft 34 and the left half shaft 35 through the differential assembly 33, so that the mode of increasing the range and combining the ECVT of the engine, the first motor and the second motor is realized.
In this mode, the differential assembly 33, the engine shaft 5, the first motor shaft 6 and the second motor shaft 23 satisfy the following relationship of rotational speeds:
Figure BDA0002378681340000101
14. and a braking energy recovery mode (the braking energy can be recovered when the whole vehicle decelerates, brakes and slides). When the whole vehicle is in a second motor independent drive mode and an extended range hybrid drive mode, the second motor 3 is converted into a power generation mode, each brake keeps the original state, the kinetic energy of the whole vehicle is transmitted to the differential assembly 33 through the left half shaft 34 and the right half shaft 35, the differential assembly 33 transmits the kinetic energy to the second planet carrier 29 through the differential gear 32, the second planet carrier 29 transmits the kinetic energy to the second sun gear 27 through the second planet gear 29 due to the braking state of the second gear ring 30, the second sun gear 27 transmits the kinetic energy to the second motor 3 through the second motor shaft 23 to drive the second motor rotor to rotate at a high speed, the second motor 3 converts the kinetic energy into electric energy, the electric energy is rectified by the controller and then is stored in a vehicle-mounted power supply, and the recovery of the whole vehicle energy.
When the whole vehicle is in the first motor independent driving mode, the brakes are kept in the original state, the first motor 2 is converted into a power generation mode, the engine is in a closed state, the kinetic energy of the whole vehicle is transmitted to the differential assembly 33 through the left half shaft 34 and the right half shaft 35, the differential assembly 33 transmits the kinetic energy to the second planet carrier 29 through the differential gear 32, because the second sun gear 27 is in a braking state, the kinetic energy is transmitted to the second gear ring 30 by the second planet gear 29 through the second planet gear 29, the kinetic energy is transmitted to the first gear ring 10 by the second gear ring 30, the kinetic energy is transmitted to the first sun gear 9 by the first planet gear 8 through the first gear ring 10, the kinetic energy is transmitted to the first motor 2 through the first motor shaft 6 by the first sun gear 9 to drive the first motor rotor to rotate at a high speed, the kinetic energy is converted into electric energy by the first motor 2, the electric energy is rectified by the controller and then stored in a vehicle-mounted power supply, and the recovery of the braking energy of the whole vehicle is completed.
When the whole vehicle is in an engine independent driving mode, the fourth brake 22 releases the fourth brake disc 19, the rest brakes are kept in the original state, and when the whole vehicle is in an engine power split driving mode and an engine and first motor combined ECVT driving mode, each brake is kept in the original state, the first motor 2 is switched into a power generation mode, the kinetic energy of the whole vehicle is transmitted to the differential assembly 33 through the left half shaft 34 and the right half shaft 35, the differential assembly 33 transmits the kinetic energy to the second planet carrier 29 through the differential gear 32, because the second sun gear 27 is in a braking state, the second planet carrier 29 transmits the kinetic energy to the second ring gear 30 through the second planet gear 29, the second ring gear 30 transmits the kinetic energy to the first ring gear 10, and the first ring gear 10 transmits the kinetic energy to the first planet gear 8. Meanwhile, the engine 1 transmits power to the first planet carrier 7 through the elastic shock absorber 4 through the engine shaft 5, the first planet carrier 7 transmits the power to the first planet wheel 8, the first planet wheel 8 superposes the power from the engine 1 and braking energy from the left half shaft 34 and the right half shaft 35 and transmits the superposed power to the first sun wheel 9, the first sun wheel 9 transmits kinetic energy to the first motor 2 through the first motor shaft 6 to drive the first motor rotor to rotate at a high speed, the first motor 2 converts the kinetic energy into electric energy, the electric energy is rectified by the controller and then stored in a vehicle-mounted power supply, and the recovery of the braking energy of the whole vehicle is completed.
When the whole vehicle is in a first motor and second motor combined ECVT driving mode, each brake keeps the original state, the first motor 2 and the second motor 3 are converted into a power generation mode, the engine 1 is in a closed state, the kinetic energy of the whole vehicle is transmitted to the differential assembly 33 through the left half shaft 34 and the right half shaft 35, the differential assembly 33 transmits the kinetic energy to the second planet carrier 29 through the differential gear 32, the vehicle controller adjusts the power generation states of the first motor 2 and the second motor 3 according to the running condition of the whole vehicle, and the first motor 2 and the second motor 3 form corresponding loads so as to guide the braking energy of the second planet carrier 29 to realize energy splitting and ensure that the braking energy recovery efficiency is in a high-level state. The second planet carrier 29 transmits a part of the split kinetic energy to the second sun gear 27 through the second planet gear 28, the second sun gear 27 transmits the kinetic energy to the second motor 3 through the second motor shaft 23 to drive the second motor rotor to rotate at a high speed, and the second motor 3 converts the kinetic energy into electric energy which is stored in the vehicle-mounted power supply after being rectified by the controller. Meanwhile, the second planet carrier 29 transmits the other part of the split kinetic energy to the second gear ring 30 through the second planet wheel 28, the second gear ring 30 transmits the kinetic energy to the first gear ring 10, the first gear ring 10 transmits the kinetic energy to the first sun wheel 9 through the first planet wheel 8, the first sun wheel 9 transmits the kinetic energy to the first motor 2 through the first motor shaft 6 to drive the first motor rotor to rotate at a high speed, the first motor 2 converts the kinetic energy into electric energy, and the electric energy is rectified by the controller and then stored in a vehicle-mounted power supply, so that the recovery of the braking energy of the whole vehicle by the double motors is completed.
When the whole vehicle is in an engine and second motor combined ECVT driving mode, the fourth brake 22 releases the fourth brake disc 19, the rest brakes keep the original state, the second motor 3 is converted into a power generation mode, the kinetic energy of the whole vehicle is transmitted to the differential assembly 33 by the left half shaft 34 and the right half shaft 35, the differential assembly 33 transmits the kinetic energy to the second planet carrier 29 through the differential gear 32, and the second planet carrier 29 transmits the kinetic energy to the second planet wheel 28. Meanwhile, the vehicle controller adjusts the power output of the engine 1 according to the running condition of the whole vehicle, so as to ensure that the oil consumption and the energy recovery of the power system reach the optimal range, the engine 1 transmits power to the first planet carrier 7 through the elastic shock absorber 4 via the engine shaft 5, the first planet carrier 7 transmits the power to the first gear ring 10 via the first planet wheel 8, the first gear ring 10 transmits the power to the second gear ring 30, the second gear ring 30 transmits the power to the second planet wheel 28, the second planet wheel 28 transmits the power from the engine 1 and the braking energy from the left half shaft 34 and the right half shaft 35 to the second sun wheel 27 after being superposed, the second sun wheel 27 transmits the kinetic energy to the second motor 3 via the second motor shaft 23 to drive the second motor rotor to rotate at a high speed, the second motor 3 converts the kinetic energy into electric energy, and stores the electric energy into a vehicle-mounted power supply after being rectified by the controller, so as to complete.
When the whole vehicle is in an engine, first motor and second motor combined ECVT driving mode and an engine, first motor and second motor extended range combined ECVT driving mode, each brake keeps the original state, the first motor 2 and the second motor 3 are both converted into a power generation mode, the kinetic energy of the whole vehicle is transmitted to a differential assembly 33 by a left half shaft 34 and a right half shaft 35, the differential assembly 33 transmits the kinetic energy to a second planet carrier 29 through a differential gear 32, the whole vehicle controller adjusts the power generation states of the first motor 2 and the second motor 3 according to the running condition of the whole vehicle, and the first motor 2 and the second motor 3 form corresponding loads so as to guide the braking energy of the second planet carrier 29 to realize energy splitting and ensure that the energy recovery efficiency is in a high-level state. The second planet carrier 29 transmits a part of the split kinetic energy to the second sun gear 27 through the second planet gear 28, the second sun gear 27 transmits the kinetic energy to the second motor 3 through the second motor shaft 23 to drive the second motor rotor to rotate at a high speed, and the second motor 3 converts the kinetic energy into electric energy which is stored in the vehicle-mounted power supply after being rectified by the controller. At the same time, the second planet carrier 29 transfers another part of the split kinetic energy to the second ring gear 30 via the second planet wheels 28, the second ring gear 30 transfers the kinetic energy to the first ring gear 10, the first ring gear 10 transfers the kinetic energy to the first planet wheels 8, meanwhile, the engine 1 transmits power to the first planet carrier 7 through the elastic shock absorber 4 through the engine shaft 5, the first planet carrier 7 transmits the power to the first planet wheel 8, the first planet wheel 8 superposes the power from the engine 1 and braking energy from the left half shaft 34 and the right half shaft 35 and transmits the superposed power to the first sun wheel 9, the first sun wheel 9 transmits kinetic energy to the first motor 2 through the first motor shaft 6 to drive the first motor rotor to rotate at a high speed, the first motor 2 converts the kinetic energy into electric energy, the electric energy is rectified by the controller and then stored in a vehicle-mounted power supply, and therefore the braking energy recovery of the whole vehicle by the double motors is completed.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.

Claims (5)

1. The utility model provides a multimode double ring gear meshing hybrid drive system, includes an engine and two motors, its characterized in that: the engine and the first motor jointly drive the first planetary row mechanism, the first planetary row mechanism drives the second planetary row mechanism, the second planetary row mechanism is in transmission connection with the second motor, and the second planetary row mechanism also drives the differential assembly.
2. The multi-mode dual ring gear mesh hybrid drive system of claim 1, wherein: the first planet row mechanism and the second planet row mechanism are respectively composed of a sun wheel, a planet wheel, a gear ring and a planet carrier, the sun wheel is meshed with the transmission planet wheel, the planet wheel is internally meshed with the transmission gear ring, and the planet carrier is coaxially arranged on the planet wheel;
the engine drives a planet carrier of the first planetary gear train;
the first motor drives a sun gear of the first planet row mechanism;
the gear ring of the first planet row mechanism is meshed with the gear ring of the second planet row mechanism, the sun gear of the second planet row mechanism is in transmission connection with the second motor, and the planet carrier of the second planet row mechanism drives the differential assembly to output power.
3. The multi-mode, double row planetary hybrid drive system as claimed in claim 2, wherein: the planet carrier of the first planet row mechanism drives a first die changing gear, the gear ring of the first planet row mechanism also drives a second die changing gear, the die changing gear is provided with a brake shaft, and the brake shaft is provided with a brake.
4. The multi-mode, double row planetary hybrid drive system as claimed in claim 2, wherein: and brake shafts are led out of the second motor and the third motor, and brakes are installed on the brake shafts.
5. The multi-mode, double row planetary hybrid drive system as claimed in claim 1, wherein: the engine and the first motor are coaxially arranged; and the axes of the engine and the first motor are parallel to the axes of the second motor and the differential assembly.
CN202010076769.7A 2020-01-23 2020-01-23 Multimode double-gear-ring-meshing hybrid power driving system Pending CN111114290A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024087600A1 (en) * 2022-10-24 2024-05-02 东风汽车集团股份有限公司 Hybrid power transmission assembly, hybrid electric drive system, and vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024087600A1 (en) * 2022-10-24 2024-05-02 东风汽车集团股份有限公司 Hybrid power transmission assembly, hybrid electric drive system, and vehicle

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