CN111114278B - Hybrid power driving system and vehicle - Google Patents

Hybrid power driving system and vehicle Download PDF

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Publication number
CN111114278B
CN111114278B CN201811284787.3A CN201811284787A CN111114278B CN 111114278 B CN111114278 B CN 111114278B CN 201811284787 A CN201811284787 A CN 201811284787A CN 111114278 B CN111114278 B CN 111114278B
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clutch
engine
gear
output shaft
drive mode
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CN111114278A (en
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朱新明
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BYD Co Ltd
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BYD Co Ltd
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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
    • B60K6/24—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
    • 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
    • B60K6/26—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
    • B60K6/22—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
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention discloses a hybrid power driving system and a vehicle, wherein an engine, a first motor, a second motor, an output shaft and a planetary gear mechanism are arranged on the vehicle; the engine is respectively connected with the first input shaft, the second input shaft and the third input shaft through the first clutch, the second clutch and the third clutch; the first input shaft and the second input shaft are connected with the output shaft through a first gear set and a second gear set in a speed reduction manner respectively; the planetary gear mechanism comprises a sun gear, a planet carrier and a gear ring; the sun gear is connected to a rotating shaft of the first motor; one of the planet carrier and the gear ring is connected with the third input shaft, and the other one of the planet carrier and the gear ring is connected with a fourth gear arranged on the output shaft; the second motor is connected with the output shaft; the first gear set and the second gear set correspond to two speed ratios respectively; simple structure can realize the multi-gear variable speed of engine, and first motor, second motor all can be used to generate electricity or drive, can realize multiple drive mode, improve vehicle economy.

Description

Hybrid power driving system and vehicle
Technical Field
The invention belongs to the technical field of power, and particularly relates to a hybrid power driving system and a vehicle.
Background
Hybrid powertrain systems may improve vehicle economy in a number of ways. For example, the engine may be turned off during idle, deceleration, or braking, and travel in an electric-only drive mode to eliminate efficiency losses due to engine drag. Additionally, energy stored in the power battery, either generated by regenerative braking or generated by the electric machine during engine operation, may be utilized in an electric-only drive mode, or to supplement the torque or power of the engine in a hybrid drive mode.
Hybrid vehicles are capable of being driven by combining at least two different powers, and most of the hybrid vehicles currently employ a gasoline-electric hybrid system including an engine powered from fuel and an electric motor driven by electric power. In order to improve the combustion efficiency of the engine to the maximum extent, hybrid power systems developed by many automobile manufacturers all adopt a dual-motor structure, namely, a generator is added besides a driving motor. Because the engine, the generator and the driving motor exist at the same time, the connection and control among the engine, the generator and the driving motor directly influence the performance of the hybrid vehicle.
The existing hybrid power driving system comprises an engine, a power motor and an auxiliary motor, the engine outputs power to wheels of a hybrid electric vehicle through the double clutches, the second input shaft is coaxially sleeved on the first input shaft, the engine is arranged to be selectively connected with one of the first input shaft and the second input shaft through the double clutches, a gear driving gear is arranged on each of the first input shaft and the second input shaft, the first output shaft and the second output shaft are arranged in parallel with the first input shaft, a gear driven gear is arranged on each of the first output shaft and the second output shaft, the gear driven gears are correspondingly meshed with the gear driving gears, the power motor is arranged to be linked with the first input shaft or the second input shaft, and the auxiliary motor is connected with the engine and generates power under the driving of the engine to charge the power battery; although two motors are arranged, the power motor is only used for driving and not used for generating electricity, the charging efficiency is low, the auxiliary motor needs an additional connecting structure to be separately connected with the engine, the structure is complex, the load is relatively high, and the hybrid power driving system cannot be effectively kept to work in an efficient range.
In addition, the existing hybrid power system is difficult to solve the efficiency problem of low-speed and medium-low-speed engines, the electric balance problem and the high-speed dynamic problem of the engines at the same time. The engine is difficult to work in a fuel economy range, and the vehicle economy is poor.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the problem of poor vehicle economy in the existing scheme, a hybrid power driving system and a vehicle are provided.
In order to solve the above technical problem, in one aspect, an embodiment of the present invention provides a hybrid drive system, including an engine, a first motor, a second motor, a first clutch, a second clutch, a third clutch, a first input shaft, a second input shaft, a third input shaft, an output shaft, a first gear set, a second gear set, a fourth gear, and a planetary gear mechanism;
the engine is connected with the first input shaft, the second input shaft and the third input shaft through the first clutch, the second clutch and the third clutch respectively;
the first input shaft and the second input shaft are respectively connected with the output shaft in a speed reduction way through the first gear set and the second gear set;
the fourth gear is arranged on the output shaft;
the planetary gear mechanism comprises a sun gear, a planet carrier and a gear ring;
the sun gear is connected to a rotating shaft of the first motor;
one of the planet carrier and the gear ring is connected with the third input shaft, and the other is connected with the fourth gear;
the second motor is connected with the output shaft;
the first gear set and the second gear set correspond to two speed ratios respectively.
Further, the system also comprises a synchronizer;
the synchronizer selectively operatively connects the first gear set between the first input shaft and the output shaft or operatively connects the fourth gear between the planetary gear mechanism and the output shaft, or simultaneously disconnects the first gear set from operatively connecting the first input shaft and the output shaft and the fourth gear from operatively connecting the planetary gear mechanism and the output shaft.
Further, the first gear set comprises a first driving gear arranged on the first input shaft and a first driven gear rotatably arranged on the output shaft, and the first driving gear is meshed with the first driven gear;
the fourth gear is rotatably arranged on the output shaft;
the synchronizer is provided on the output shaft and is capable of being connected to one of the first driven gear and the fourth gear or being disconnected from both the first driven gear and the fourth gear.
Further, the gear transmission device also comprises a third gear set and a synchronizer, wherein the speed ratio of the third gear set is different from the speed ratio of the first gear set and the speed ratio of the second gear set;
the third input shaft is connected with the output shaft in a speed reduction way through the third gear set;
the synchronizer selectively operatively connects the third gear set between the third input shaft and the output shaft or operatively connects the fourth gear between the planetary gear mechanism and the output shaft, or simultaneously disconnects the third gear set from operatively connecting the third input shaft and the output shaft and the fourth gear from operatively connecting the planetary gear mechanism and the output shaft.
Further, the third gear set comprises a third driving gear arranged on the third input shaft and a third driven gear rotatably arranged on the output shaft, and the third driving gear is meshed with the third driven gear;
the fourth gear is rotatably arranged on the output shaft;
the synchronizer is provided on the output shaft and is capable of being connected to one of the third driven gear and the fourth gear or being disconnected from the third driven gear and the fourth gear at the same time.
Further, still include the fourth clutch, the output shaft includes first shaft segment and the second shaft segment that passes through the fourth clutch and is connected with first shaft segment, the second gear train with first shaft segment is continuous, first gear train, the third gear train, the fourth gear and the second motor with the second shaft segment is continuous.
Furthermore, the first clutch, the second clutch and the third clutch are integrated three clutches, the first input shaft and the second input shaft are hollow shafts, the first input shaft is rotatably arranged in a shaft hole of the second input shaft, and the third input shaft is rotatably arranged in the shaft hole of the first input shaft.
Further, the first clutch, the second clutch and the third clutch are coaxially and fixedly arranged;
the third clutch is embedded in the first clutch and the second clutch, or the first clutch and the third clutch are embedded in the second clutch.
Further, the hybrid power driving system has a pure electric driving mode, a series-parallel driving mode, a first parallel driving mode, a second parallel driving mode, a third parallel driving mode, a first engine direct driving mode, a second engine direct driving mode, a third engine direct driving mode, a fourth engine direct driving mode, a fifth engine direct driving mode and a sixth engine direct driving mode; wherein,
disconnecting the first clutch, the second clutch and the third clutch, wherein the engine does not work, the first motor does not work, and the second motor drives to establish an electric pure driving mode;
disconnecting the first clutch and the second clutch, connecting the third clutch, driving the engine, enabling the first motor to rotate forwards or backwards, and driving the second motor to establish a series-parallel driving mode;
engaging the first clutch, disengaging the second clutch and the third clutch, the engine driven, the first motor not operated, the second motor driven to establish a first parallel drive mode;
engaging the second clutch, disengaging the first clutch and the third clutch, the engine driving, the first motor not operating, the second motor driving to establish a second parallel drive mode;
engaging the third clutch, disengaging the first clutch and the second clutch, the engine driving, the first motor not operating, the second motor driving to establish a third parallel drive mode;
engaging the first clutch, disengaging the second clutch and the third clutch, the engine is driven, the first electric machine is inoperative, the second electric machine is inoperative to establish a first engine direct drive mode;
engaging the second clutch, disengaging the first clutch and the third clutch, the engine being driven, the first electric machine being inoperative, the second electric machine being inoperative to establish a second engine direct drive mode;
engaging the third clutch, disengaging the first clutch and the second clutch, the engine being driven, the first electric machine being inoperative, the second electric machine being inoperative, to establish a third engine direct drive mode;
engaging the first clutch, disengaging the second clutch and the third clutch, the engine driving, the first electric machine not operating, the second electric machine generating electricity to establish a fourth engine direct drive mode;
engaging the second clutch, disengaging the first clutch and the third clutch, the engine driving, the first electric machine not operating, the second electric machine generating electricity to establish a fifth engine direct drive mode;
engaging the third clutch, disengaging the first clutch and the second clutch, the engine driving, the first electric machine not operating, the second electric machine generating electricity to establish a sixth engine direct drive mode.
Further, when a synchronizer is provided and selectively operatively connects the first gear set between the first input shaft and the output shaft or the fourth gear between the planetary gear mechanism and the output shaft, the hybrid drive system has an electric only drive mode, a series-parallel drive mode, a first parallel drive mode, a second parallel drive mode, a third parallel drive mode, a first engine direct drive mode, a second engine direct drive mode, a third engine direct drive mode, a fourth engine direct drive mode, a fifth engine direct drive mode, and a sixth engine direct drive mode; wherein,
disconnecting the first clutch, the second clutch and the third clutch, disconnecting the effective connection of the first gear set to the first input shaft and the output shaft and the effective connection of the fourth gear set to the planetary gear mechanism and the output shaft simultaneously by the synchronizer, enabling the engine to be out of work, enabling the first motor to be out of work, and enabling the second motor to be driven to establish an electric pure driving mode;
disconnecting the first clutch and the second clutch, engaging the third clutch, the synchronizer operatively connecting the fourth gear between the planetary gear mechanism and the output shaft, the engine driving, the first motor rotating in a forward or reverse direction, the second motor driving, to establish a series-parallel drive mode;
engaging the first clutch and disengaging the second clutch and the third clutch, the synchronizer operatively connecting the first gear set between the first input shaft and the output shaft, the engine driving, the first electric machine not operating, the second electric machine driving to establish a first parallel drive mode;
engaging the second clutch, disengaging the first clutch and the third clutch, simultaneously disengaging the first gear set from operative connection with the first input shaft and the output shaft and the fourth gear from operative connection with the planetary gear mechanism and the output shaft, the engine being driven, the first motor being inoperative, the second motor being driven to establish a second parallel drive mode;
engaging the third clutch and disengaging the first clutch and the second clutch, the synchronizer operatively connecting the fourth gear between the planetary gear mechanism and the output shaft, the engine driving, the first motor not operating, the second motor driving to establish a third parallel drive mode;
engaging the first clutch and disengaging the second clutch and the third clutch, the synchronizer operatively connecting the first gear set between the first input shaft and the output shaft, the engine driving, the first electric machine not operating, the second electric machine not operating to establish a first engine direct drive mode;
engaging the second clutch, disengaging the first clutch and the third clutch, simultaneously disengaging the first gear set from operative connection with the first input shaft and the output shaft and the fourth gear from operative connection with the planetary gear mechanism and the output shaft, the engine being driven, the first electric machine being inoperative, the second electric machine being inoperative to establish a second engine direct drive mode;
engaging the third clutch and disengaging the first clutch and the second clutch, the synchronizer operatively connecting the fourth gear between the planetary gear mechanism and the output shaft, the engine driving, the first electric machine not operating, the second electric machine not operating to establish a third engine direct drive mode;
engaging the first clutch and disengaging the second clutch and the third clutch, the synchronizer operatively connecting the first gear set between the first input shaft and the output shaft, the engine driving, the first electric machine not operating, the second electric machine generating electricity to establish a fourth engine direct drive mode;
engaging said second clutch and disengaging said first clutch and said third clutch, said synchronizer simultaneously disengaging said first gear set from operatively connecting said first input shaft and said output shaft and said fourth gear from operatively connecting said planetary gear mechanism and said output shaft, said engine is driven, said first electric machine is not operated, said second electric machine generates electricity to establish a fifth engine direct drive mode;
engaging the third clutch, disengaging the first clutch and the second clutch, the synchronizer operatively connecting the fourth gear between the planetary gear mechanism and the output shaft, the engine driving, the first motor not operating, the second motor generating electricity to establish a sixth engine direct drive mode.
Further, when a third gear set and a synchronizer are provided, the hybrid power driving system has a pure electric driving mode, a parallel-series driving mode, a first parallel driving mode, a second parallel driving mode, a third parallel driving mode, a first engine direct driving mode, a second engine direct driving mode, a third engine direct driving mode, a fourth engine direct driving mode, a fifth engine direct driving mode and a sixth engine direct driving mode; wherein,
disconnecting the first clutch, the second clutch and the third clutch, disconnecting the effective connection of the third gear set to the third input shaft and the output shaft and the effective connection of the fourth gear set to the planetary gear mechanism and the output shaft simultaneously by the synchronizer, enabling the engine to be out of work, enabling the first motor to be out of work, and enabling the second motor to be driven to establish an electric pure driving mode;
disconnecting the first clutch and the second clutch, engaging the third clutch, operatively connecting the fourth gear between the planetary gear mechanism and the output shaft by the synchronizer, the engine driving the first motor in a forward or reverse rotation, the second motor driving the second motor to establish a series-parallel drive mode;
engaging the first clutch, disengaging the second clutch and the third clutch, simultaneously disengaging the third gear set from operative connection with the third input shaft and the output shaft and the fourth gear from operative connection with the planetary gear mechanism and the output shaft, the engine being driven, the first motor being inoperative, the second motor being driven to establish a first parallel drive mode;
engaging the second clutch, disengaging the first clutch and the third clutch, simultaneously disengaging the third gear set from operative connection with the third input shaft and the output shaft and the fourth gear from operative connection with the planetary gear mechanism and the output shaft, the engine being driven, the first motor being inoperative, the second motor being driven to establish a second parallel drive mode;
engaging the third clutch and disengaging the first clutch and the second clutch, the synchronizer operatively connecting the third gear set between the third input shaft and the output shaft, the engine driving, the first motor not operating, the second motor driving to establish a third parallel drive mode;
engaging the first clutch, disengaging the second clutch and the third clutch, simultaneously disengaging the third gear set from operative connection with the third input shaft and the output shaft and the fourth gear from operative connection with the planetary gear mechanism and the output shaft, the engine being driven, the first electric machine being inoperative, the second electric machine being inoperative to establish a first engine direct drive mode;
engaging the second clutch, disengaging the first clutch and the third clutch, simultaneously disengaging the third gear set from operative connection with the third input shaft and the output shaft and the fourth gear from operative connection with the planetary gear mechanism and the output shaft, the engine being driven, the first electric machine being inoperative, the second electric machine being inoperative to establish a second engine direct drive mode;
engaging the third clutch and disengaging the first clutch and the second clutch, the synchronizer operatively connecting the third gear set between the third input shaft and the output shaft, the engine driving, the first electric machine not operating, the second electric machine not operating to establish a third engine direct drive mode;
engaging said first clutch and disengaging said second clutch and said third clutch, said synchronizer simultaneously disengaging said third gear set from operatively connecting said third input shaft and said output shaft and said fourth gear from operatively connecting said planetary gear mechanism and said output shaft, said engine is driven, said first electric machine is not operated, said second electric machine generates electricity to establish a fourth engine direct drive mode;
engaging the second clutch, disengaging the first clutch and the third clutch, simultaneously disengaging the third gear set from operative connection with the third input shaft and the output shaft and the fourth gear from operative connection with the planetary gear mechanism and the output shaft, the engine driving, the first motor not operating, the second motor generating electricity to establish a fifth engine direct drive mode;
engaging the third clutch, disengaging the first clutch and the second clutch, the synchronizer operatively connecting the third gear set between the third input shaft and the output shaft, the engine driving, the first electric machine not operating, the second electric machine generating electricity to establish a sixth engine direct drive mode.
Further, when a fourth clutch is provided, the hybrid drive system has a pure electric drive mode, a parallel-series drive mode, a first parallel drive mode, a second parallel drive mode, a third parallel drive mode, a first engine direct drive mode, a second engine direct drive mode, a third engine direct drive mode, a fourth engine direct drive mode, a fifth engine direct drive mode and a sixth engine direct drive mode; wherein,
disconnecting the first clutch, the second clutch and the third clutch, engaging the fourth clutch, disconnecting the effective connection of the third gear set to the third input shaft and the output shaft and the effective connection of the fourth gear set to the planetary gear mechanism and the output shaft simultaneously by the synchronizer, wherein the engine does not work, the first motor does not work, and the second motor drives to establish an electric-only driving mode;
disconnecting the first clutch and the second clutch, engaging the third clutch and the fourth clutch, the synchronizer operatively connecting the fourth gear between the planetary gear mechanism and the output shaft, the engine driving, the first motor rotating in a forward or reverse direction, the second motor driving to establish a series-parallel drive mode;
engaging the first clutch and the fourth clutch, disengaging the second clutch and the third clutch, simultaneously disengaging the third gear set from operative connection with the third input shaft and the output shaft and the fourth gear from operative connection with the planetary gear mechanism and the output shaft, the engine being driven, the first motor being inoperative, the second motor being driven to establish a first parallel drive mode;
engaging the second clutch and disengaging the first clutch, the third clutch and the fourth clutch, the synchronizer simultaneously disengaging the third gear set from operatively connecting the third input shaft and the output shaft and the fourth gear from operatively connecting the planetary gear mechanism and the output shaft, the engine being driven, the first motor being inoperative, the second motor being driven to establish a second parallel drive mode;
engaging the third clutch and the fourth clutch, disengaging the first clutch and the second clutch, the synchronizer operatively connecting the third gear set between the third input shaft and the output shaft, the engine driving, the first motor not operating, the second motor driving to establish a third parallel drive mode;
engaging the first clutch and the fourth clutch, disengaging the second clutch and the third clutch, simultaneously disengaging the third gear set from operative connection with the third input shaft and the output shaft and the fourth gear set from operative connection with the planetary gear mechanism and the output shaft, the engine being driven, the first electric machine being inoperative, the second electric machine being inoperative to establish a first engine direct drive mode;
engaging said second clutch and disengaging said first clutch, said third clutch and said fourth clutch, said synchronizer simultaneously disengaging operative connection of said third gear set to said third input shaft and said output shaft and operative connection of said fourth gear to said planetary gear mechanism and said output shaft, said engine driven, said first electric machine not operated, said second electric machine not operated to establish a second engine direct drive mode;
engaging the third clutch and the fourth clutch, disengaging the first clutch and the second clutch, the synchronizer operatively connecting the third gear set between the third input shaft and the output shaft, the engine driving, the first electric machine not operating, the second electric machine not operating to establish a third engine direct drive mode;
engaging said first clutch and said fourth clutch, disengaging said second clutch and said third clutch, simultaneously disengaging said third gear set from operative connection with said third input shaft and said output shaft and said fourth gear set from operative connection with said planetary gear mechanism and said output shaft, said engine being driven, said first electric machine being inoperative, said second electric machine being generating electric power to establish a fourth engine direct drive mode;
engaging said second clutch and disengaging said first clutch, said third clutch and said fourth clutch, said synchronizer simultaneously disengaging operative connection of said third gear set to said third input shaft and said output shaft and operative connection of said fourth gear to said planetary gear mechanism and said output shaft, said engine driven, said first electric machine not operating, said second electric machine generating electricity to establish a fifth engine direct drive mode;
and the third clutch and the fourth clutch are engaged, the first clutch and the second clutch are disconnected, the third gear set is effectively connected between the third input shaft and the output shaft through the synchronizer, the engine is driven, the first motor does not work, and the second motor generates electricity to establish a sixth engine direct drive mode.
In another aspect, an embodiment of the present invention further provides a vehicle, which includes the hybrid drive system.
According to the hybrid power driving system and the vehicle provided by the embodiment of the invention, the power of the engine can be selectively transmitted to the output shaft through the first gear set, the second gear set, the planetary gear mechanism and the fourth gear by controlling the connection or disconnection of the first clutch, the second clutch and the third clutch, so that the engine can output multi-gear speed ratio, and multi-gear speed change of the engine is realized; when the third clutch is engaged, the power of the engine and the first motor is coupled through the planetary gear mechanism and then transmitted to the output shaft, and the first motor can continuously change the rotating speed, so that the steady-state control of the rotating speed of the engine is realized, and the rotating speed output to the output shaft is adjusted; the hybrid drive system has the advantages that the pure electric drive mode, the series-parallel drive mode, the parallel drive mode and the direct engine drive mode can be realized, multiple drive modes are provided with multiple gears, different drive force requirements of an engine can be met, the engine can work in a region with higher fuel economy as far as possible, the first motor and the second motor work in a region with higher economy, the problems of engine efficiency and electric balance at low speed and medium speed and the problem of engine power at high speed are solved, the system work efficiency is high, and accordingly the vehicle economy is improved; the hybrid power driving system is simple and compact in structure, the number of used parts is small, the structural complexity of the hybrid power driving system is reduced, energy transmission loss is small, and system efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of a hybrid drive system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a hybrid drive system according to an embodiment of the present invention;
FIG. 3 is a block diagram of a hybrid drive system according to an embodiment of the present invention;
FIG. 4 is a power transmission route diagram of the hybrid drive system shown in FIG. 2 in a pure electric drive mode;
FIG. 5 is a power transmission route diagram of the hybrid drive system illustrated in FIG. 2 in a series-parallel drive mode;
FIG. 6 is a power transmission route diagram of the hybrid drive system illustrated in FIG. 2 in a first parallel drive mode;
FIG. 7 is a power transmission route diagram of the hybrid drive system illustrated in FIG. 2 in a second parallel drive mode;
FIG. 8 is a power transmission route diagram of the hybrid drive system illustrated in FIG. 2 in a third parallel drive mode;
FIG. 9 is a power transmission scheme for the hybrid drive system of FIG. 2 in a first engine direct drive mode;
FIG. 10 is a power transmission route diagram of the hybrid drive system illustrated in FIG. 2 in a second engine direct drive mode;
FIG. 11 is a power transmission route diagram of the hybrid drive system illustrated in FIG. 2 in the third engine direct drive mode;
FIG. 12 is a power transmission route diagram of the hybrid drive system illustrated in FIG. 2 in a fourth engine direct drive mode;
FIG. 13 is a power transmission route diagram of the hybrid drive system illustrated in FIG. 2 in a fifth engine direct drive mode;
FIG. 14 is a power transmission route diagram of the hybrid drive system illustrated in FIG. 2 in a sixth engine direct drive mode;
fig. 15 is a schematic structural diagram of a vehicle according to an embodiment of the present invention.
The reference numerals in the specification are as follows:
1. an engine; 2. a first motor; 3. a second motor; 4. a first clutch; 5. a second clutch; 6. a third clutch; 7. a fourth clutch; 8. a synchronizer; 9. a first input shaft; 10. a second input shaft; 11. a third input shaft; 12. an output shaft;
13. a planetary gear mechanism; 131. a sun gear; 132. a planet wheel; 133. a planet carrier; 134. a ring gear;
14. a first gear set; 141. a first drive gear; 142. a first driven gear;
15. a second gear set; 151. a second driving gear; 152. a second driven gear;
16. a third gear set; 161. a third driving gear; 162. a third driven gear;
17. a fourth gear; 18. a main reducer; 19. a differential mechanism; 20. a wheel;
100. a vehicle; 200. a hybrid drive system.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
First embodiment
Referring to fig. 1, a hybrid driving system according to a first embodiment of the present invention includes an engine 1, a first motor 2, a second motor 3, a first clutch 4, a second clutch 5, a third clutch 6, a first input shaft 9, a second input shaft 10, a third input shaft 11, an output shaft 12, a first gear set 14, a second gear set 15, a fourth gear 17, and a planetary gear mechanism 13;
the engine 1 is respectively connected with a first input shaft 9, a second input shaft 10 and a third input shaft 11 through a first clutch 4, a second clutch 5 and a third clutch 6;
the first input shaft 9 and the second input shaft 10 are respectively connected with the output shaft 12 in a speed reduction way through a first gear set 14 and a second gear set 15;
the fourth gear 17 is arranged on the output shaft 12;
the planetary gear mechanism 13 includes a sun gear 131, planet gears 132, a planet carrier 133, and a ring gear 134;
the sun gear 131 is connected to the rotating shaft of the first motor 2;
one of the carrier 133 and the ring gear 134 is connected to the third input shaft 11, and the other is connected to the fourth gear 17;
the second motor 3 is connected with the output shaft 12;
the first gear set 14 and the second gear set 15 correspond to two speed ratios, respectively.
By controlling the engagement or disengagement of the first clutch 4, the second clutch 5, and the third clutch 6, the power of the engine 1 can be selectively transmitted to the output shaft 12 through the first gear set 14, the second gear set 15, the planetary gear mechanism 13, and the fourth gear 17, so that the engine 1 can output a multi-gear speed ratio, and a multi-gear speed change of the engine 1 is realized; the first motor 2 and the second motor 3 can be used for generating power or driving, when the third clutch 6 is engaged, the power of the engine 1 and the first motor 2 is coupled through the planetary gear mechanism 13 and then transmitted to the output shaft 12, and the rotating speed of the first motor 2 can be continuously changed, so that the steady-state control of the rotating speed of the engine 1 is realized, and the rotating speed output to the output shaft 12 is adjusted; the pure electric drive mode, the series-parallel drive mode, the parallel drive mode and the direct drive mode of the engine 1 can be realized, and multiple drive modes have multiple gears, so that different drive force requirements of the engine 1 can be met, the engine 1 can work in a region with higher fuel economy as much as possible, the first motor 2 and the second motor 3 work in a region with higher economy, the problems of efficiency and electric balance of the engine 1 at low speed and medium speed and the problem of dynamic property of the engine 1 at high speed are solved, the working efficiency of the system is high, and the vehicle economy is improved; the hybrid power driving system is simple and compact in structure, the number of used parts is small, the structural complexity of the hybrid power driving system is reduced, energy transmission loss is small, and system efficiency is improved.
Preferably, the carrier 133 is connected to the third input shaft 11 and the ring gear 134 is connected to and meshed with the fourth gear 17.
In addition, referring to fig. 1, the hybrid drive system further includes a final drive 18 and a differential 19, the final drive 18 is connected to an output end of the output shaft 12, and the differential 19 is connected between the final drive 18 and the wheels 20, so as to transmit the power of the output shaft 12 to the wheels 20 through the final drive 18 and the differential 19, thereby driving the vehicle to run. Of course, an output member for transmitting power may also be provided between the output shaft 12 and the final drive 18.
Preferably, referring to fig. 1, the first gear set 14 includes a first driving gear 141 disposed on the first input shaft 9 and a first driven gear 142 disposed on the output shaft 12, and the first driving gear 141 is engaged with the first driven gear 142;
the second gear set 15 includes a second driving gear 151 disposed on the second input shaft 10 and a second driven gear 152 disposed on the output shaft 12, the second driving gear 151 is engaged with the second driven gear 152; the power output path is simplified, the structure is simpler and more compact, and the reduction of energy transmission loss and the miniaturization of a hybrid power driving system are facilitated.
Preferably, referring to fig. 1, the first clutch 4, the second clutch 5 and the third clutch 6 are integrated three clutches, the first input shaft 9 and the second input shaft 10 are hollow shafts, the first input shaft 9 is rotatably disposed in a shaft hole of the second input shaft 10, and the third input shaft 11 is rotatably disposed in a shaft hole of the first input shaft 9; the structure is simple and compact, the miniaturization of a hybrid power driving system is facilitated, and the energy transmission loss is reduced as much as possible.
More preferably, the first clutch 4, the second clutch 5 and the third clutch 6 are coaxially and fixedly arranged; the third clutch 6 is embedded in the first clutch 4 and the second clutch 5 (see fig. 1), or the first clutch 4 and the third clutch 6 are embedded in the second clutch 5 (not shown). The integration of the first clutch 4, the second clutch 5 and the third clutch 6 is realized, the third clutch 6 corresponding to the third input shaft 11 positioned at the center in the input shaft is arranged at the inner layer of the integrated three-clutch, the second clutch 5 corresponding to the second input shaft 10 positioned at the outermost layer in the input shaft is arranged at the outer layer in the integrated three-clutch, and the first clutch 4 corresponding to the first input shaft 9 positioned in the middle in the input shaft is arranged at the inner layer or the outer layer in the integrated three-clutch.
More preferably, the driven part of the first clutch 4 is closer to the axis of the first electric machine 2 than the driving part, the driven part of the second clutch 5 is closer to the axis of the first electric machine 2 than the driving part, and the driven part of the second clutch 5 is closer to the axis of the first electric machine 2 than the driving part, which is advantageous to reduce the size of the first input shaft 9, the second input shaft 10, and the third input shaft 11, thereby reducing the load.
The first embodiment provides a hybrid drive system having the following drive modes: a pure electric drive mode, a series-parallel drive mode, 3 parallel drive modes (a first parallel drive mode, a second parallel drive mode, and a third parallel drive mode), and 6 engine 1 direct drive modes (a first engine direct drive mode, a second engine 1 direct drive mode, a third engine 1 direct drive mode, a fourth engine 1 direct drive mode, a fifth engine 1 direct drive mode, and a sixth engine 1 direct drive mode). The operation logic in each driving mode is shown in table 1.
Table 1 table of operation logic in each driving mode (first embodiment)
Drive mode First clutch Second clutch Third clutch Engine First motor Second electric machine
Pure electric drive Break off Disconnect Disconnect Not working Non-operation Drive the
Series-parallel drive Disconnect Disconnect Joining Drive the Forward or reverse rotation Not working
First parallel driving mode Joining Break off Disconnect Drive the Non-operation Drive the
Second parallel drive mode Disconnect Joining Disconnect Drive the Not working Drive the
Third parallel drive mode Disconnect Disconnect Joining Drive the Non-operation Drive the
Direct drive of first engine Joining Disconnect Disconnect Drive the Non-operation Not working
Second engine direct drive Disconnect Joining Disconnect Drive the Not working Not working
Third engine direct drive Disconnect Break off Joining Drive the Not working Not working
Direct drive of the fourth engine Joining Disconnect Break off Drive the Not working Power generation
Fifth Engine direct drive Disconnect Joining Disconnect Drive the Not working Power generation
Direct drive of sixth engine Disconnect Break off Joining Drive the Not working Power generation
Hereinafter, the power transmission route in each drive mode will be described in detail with reference to fig. 1.
(1) Pure electric drive mode
The first clutch 4, the second clutch 5 and the third clutch 6 are disconnected, the engine 1 does not work, the first motor 2 does not work, and the second motor 3 drives to establish a pure electric driving mode;
the power transmission route in the driving mode is as follows: the second motor 3- > output shaft 12.
(2) Series-parallel drive mode
Disconnecting the first clutch 4 and the second clutch 5, connecting the third clutch 6, driving the engine 1, positively rotating or negatively rotating the first motor 2, and driving the second motor 3 to establish a series-parallel driving mode;
the power transmission route 1 in this drive mode is: the engine 1- > the third clutch 6- > the third input shaft 11- > the planetary gear mechanism 13- > the fourth gear 17- > the output shaft 12;
the power transmission route 2 is: the first motor 2- > the planetary gear mechanism 13- > the fourth gear 17- > the output shaft 12;
the power transmission line 3 is: the engine 1- > the third clutch 6- > the third input shaft 11- > the planetary gear mechanism 13- > the first motor 2;
the power transmission line 2 is a power transmission line when the first motor 2 is driven, and the power transmission line 2 is a power transmission line when the first motor 2 generates power; in the series-parallel driving mode, the engine 1 participates in driving the wheels 20, and the first motor 2 rotates forwards or backwards, so that the output of the ring gear 134 (or the planet carrier 133) for outputting power is adjusted, and the steady-state control of the rotating speed of the engine 1 is realized, so that the rotating speed of the output shaft 12 is adjusted.
(3) First parallel driving mode
Engaging the first clutch 4, disengaging the second clutch 5 and the third clutch 6, driving the engine 1, not operating the first electric machine 2, driving the second electric machine 3 to establish a first parallel driving mode;
the power transmission route 1 in this drive mode is: the engine 1- > the first clutch 4- > the first input shaft 9- > the first gear set 14- > the output shaft 12;
the power transmission route 2 is: the second motor 3- > output shaft 12.
(4) Second parallel drive mode
Engaging the second clutch 5, disengaging the first clutch 4 and the third clutch 6, driving the engine 1, not operating the first motor 2, and driving the second motor 3 to establish a second parallel driving mode;
the power transmission route 1 in this drive mode is: the engine 1- > the second clutch 5- > the second input shaft 10- > the second gear set 15- > the output shaft 12;
the power transmission route 2 is: the second motor 3- > output shaft 12.
(5) Third parallel drive mode
Engaging the third clutch 6, disengaging the first clutch 4 and the second clutch 5, driving the engine 1, not operating the first motor 2, and driving the second motor 3 to establish a third parallel driving mode;
the power transmission route 1 in this drive mode is: the engine 1- > the third clutch 6- > the third input shaft 11- > the planetary gear mechanism 13- > the fourth gear 17- > the output shaft 12;
the power transmission route 2 is: the second motor 3- > output shaft 12.
In a first parallel drive mode, a second parallel drive mode, and a third parallel drive mode: the hybrid power driving system is driven by the engine 1 and the second motor 3 together, and realizes multi-gear output of the engine 1 and single-gear output of the second motor 3 by switching the first clutch 4, the second clutch 5 and the third clutch 6.
(6) Direct drive mode of the first Engine (Motor No-load)
Engaging the first clutch 4, disengaging the second clutch 5 and the third clutch 6, driving the engine 1, not operating the first electric machine 2, not operating the second electric machine 3, to establish a first engine direct drive mode;
the power transmission route in the driving mode is as follows: the engine 1- > the first clutch 4- > the first input shaft 9- > the first gear set 14- > the output shaft 12.
(7) Second Engine 1 direct drive mode (Motor No-load)
Engaging the second clutch 5, disconnecting the first clutch 4 and the third clutch 6, driving the engine 1, not operating the first motor 2, not operating the second motor 3, so as to establish a direct drive mode of the second engine 1;
the power transmission route in the driving mode is as follows: the engine 1- > the second clutch 5- > the second input shaft 10- > the second gear set 15- > the output shaft 12.
(8) Third Engine 1 direct drive mode (Motor No-load)
Engaging the third clutch 6, disengaging the first clutch 4 and the second clutch 5, driving the engine 1, not operating the first motor 2, not operating the second motor 3, so as to establish a direct drive mode of the third engine 1;
the power transmission route in the driving mode is as follows: the engine 1- > the third clutch 6- > the third input shaft 11- > the planetary gear mechanism 13- > the fourth gear 17- > the output shaft 12.
In the first engine direct drive mode, the second engine 1 direct drive mode, and the third engine 1 direct drive mode: the hybrid power driving system is driven by the engine 1, meanwhile, the first motor 2 and the second motor 3 do not work, and multi-gear output of the engine 1 is achieved by switching the first clutch 4, the second clutch 5 and the third clutch 6.
(9) Fourth Engine 1 direct drive mode (Motor generating)
Engaging the first clutch 4, disengaging the second clutch 5 and the third clutch 6, driving the engine 1, not operating the first motor 2, and generating electricity by the second motor 3 to establish a fourth engine 1 direct drive mode;
the power transmission route 1 in this drive mode is: the engine 1- > the first clutch 4- > the first input shaft 9- > the first gear set 14- > the output shaft 12;
the power transmission route 2 is: the engine 1- > the first clutch 4- > the first input shaft 9- > the first gear set 14- > the output shaft 12- > the second motor 3.
(10) Fifth Engine 1 direct drive mode (Motor generating)
Engaging the second clutch 5, disengaging the first clutch 4 and the third clutch 6, driving the engine 1, not operating the first motor 2, and generating power by the second motor 3 to establish a fifth engine 1 direct drive mode;
the power transmission route 1 in this drive mode is: the engine 1- > the second clutch 5- > the second input shaft 10- > the second gear set 15- > the output shaft 12;
the power transmission route 2 is: the engine 1- > the second clutch 5- > the second input shaft 10- > the second gear set 15- > the output shaft 12- > the second motor 3.
(11) Sixth engine 1 direct drive mode (Motor generating)
Engaging the third clutch 6, disengaging the first clutch 4 and the second clutch 5, driving the engine 1, not operating the first motor 2, and generating power by the second motor 3 to establish a sixth engine 1 direct drive mode;
the power transmission route 1 in this drive mode is: the engine 1- > the third clutch 6- > the third input shaft 11- > the planetary gear mechanism 13- > the fourth gear 17- > the output shaft 12;
the power transmission route 2 is: engine 1- > third clutch 6- > third input shaft 11- > planetary gear mechanism 13- > fourth gear 17- > output shaft 12- > second motor 3.
In the fourth engine 1 direct drive mode, the fifth engine 1 direct drive mode, and the sixth engine 1 direct drive mode: the hybrid power driving system is driven by the engine 1, the engine 1 drives the second motor 3 to generate power for the battery, and multi-gear output of the engine 1 is realized by switching the first clutch 4, the second clutch 5 and the third clutch 6.
Second embodiment
Referring to fig. 1, the second embodiment is additionally provided with a synchronizer 8 on the basis of the first embodiment, and the synchronizer 8 selectively and effectively connects the first gear set 14 between the first input shaft 9 and the output shaft 12 or effectively connects the fourth gear 17 between the planetary gear mechanism 13 and the output shaft 12, or simultaneously disconnects the effective connection of the first gear set 14 to the first input shaft 9 and the output shaft 12 and the effective connection of the fourth gear 17 to the planetary gear mechanism 13 and the output shaft 12. The other structures of the second embodiment are the same as those of the first embodiment, and are not described herein again.
In the present application, the effective connection means a connection that enables power transmission.
When the driving motor is required to output power through the first gear set 14, the synchronizer 8 effectively connects the first gear set 14 between the first input shaft 9 and the output shaft 12; when the planetary gear mechanism 13 and the fourth gear 17 are required to output power, the synchronizer 8 effectively connects the fourth gear 17 between the planetary gear mechanism 13 and the output shaft 12; otherwise, the synchronizer 8 simultaneously disconnects the first gear set 14 from the operative connection of the first input shaft 9 and the output shaft 12 and the fourth gear 17 from the operative connection of the planetary gear set 13 and the output shaft 12. Thus, the load is reduced as much as possible, and the vehicle economy is improved.
When the synchronizer 8 operatively connects the first gear set 14 between the first input shaft 9 and the output shaft 12, the power transmission route from the first input shaft 9 to the output shaft 12 is: a first input shaft 9- > a first gear set 14, a synchronizer 8- > an output shaft 12;
when the synchronizer 8 operatively connects the fourth gear 17 between the planetary gear mechanism 13 and the output shaft 12, the power transmission route from the planetary gear mechanism 13 to the output shaft 12 is: the planetary gear mechanism 13- > the fourth gear 17, the synchronizer 8- > the output shaft 12.
Preferably, referring to fig. 1, the first gear set 14 includes a first driving gear 141 disposed on the first input shaft 9 and a first driven gear 142 rotatably disposed on the output shaft 12, and the first driving gear 141 is engaged with the first driven gear 142;
the fourth gear 17 is rotatably arranged on the output shaft 12;
the synchronizer 8 is provided on the output shaft 12, and can be connected to one of the first driven gear 142 and the fourth gear 17, or disconnected from both the first driven gear 142 and the fourth gear 17. The power output path is simplified, the structure is simpler and more compact, and the reduction of energy transmission loss and the miniaturization of a hybrid power driving system are facilitated.
The hybrid drive system provided by the second embodiment has the same drive mode as the first embodiment, and is not described herein again.
The logic for operation in each drive mode is shown in table 2, with the first gear set 14 and the fourth gear 17 also being identified in table 2 as GS1 and G4, respectively.
Table 2 table of operation logic in each driving mode (second embodiment)
Figure BDA0001848788820000131
As can be seen from table 1 and table 2, the respective driving modes of the second embodiment are substantially the same as the corresponding driving modes of the first embodiment in the operating states of the first clutch 4, the second clutch 5, the third clutch 6, the engine 1, the first electric machine 2, and the second electric machine 3; the only difference is that:
the second embodiment adds the operation state control of the synchronizer 8; other parts are the same as those of the operation state control and power transmission route of the first embodiment, and the second embodiment will not be described again.
Third embodiment
Referring to fig. 2, the third embodiment is added with a third gear set 16 and a synchronizer 8 on the basis of the first embodiment, and the speed ratio of the third gear set 16 is different from the speed ratio of the first gear set 14 and the speed ratio of the second gear set 15; the third input shaft 11 is connected to the output shaft 12 in a speed reduction manner through a third gear set 16; the synchronizer 8 selectively operatively connects the third gear set 16 between the third input shaft 11 and the output shaft 12 or operatively connects the fourth gear 17 between the planetary gear mechanism 13 and the output shaft 12, or simultaneously disconnects the operative connection of the third gear set 16 to the third input shaft 11 and the output shaft 12 and the operative connection of the fourth gear 17 to the planetary gear mechanism 13 and the output shaft 12. The other structures of the third embodiment are the same as those of the first embodiment, and are not described again here.
The third gear set 16 is additionally arranged, the third gear set 16 is effectively connected between the third input shaft 11 and the output shaft 12 through the switching synchronizer 8, and the fourth gear 17 is effectively connected between the planetary gear mechanism 13 and the output shaft 12, so that the engine 1 has one more output gear, the load is reduced as much as possible, the engine 1 works in a region with high fuel economy as much as possible, and the first motor 2 and the second motor 3 work in a region with high economy, and the vehicle economy is further improved.
Preferably, referring to fig. 2, the third gear set 16 includes a third driving gear 161 disposed on the third input shaft 11 and a third driven gear 162 rotatably disposed on the output shaft 12, the third driving gear 161 is engaged with the third driven gear 162;
the fourth gear 17 is rotatably arranged on the output shaft 12;
the synchronizer 8 is provided on the output shaft 12, and can be connected to one of the third driven gear 162 and the fourth gear 17, or disconnected from both the third driven gear 162 and the fourth gear 17. The power output path is simplified, the structure is simpler and more compact, and the reduction of energy transmission loss and the miniaturization of a hybrid power driving system are facilitated.
The hybrid drive system provided by the third embodiment has the same drive mode as that of the first embodiment, and is not described herein again.
The logic for operation in each drive mode is shown in table 3, with third gear set 16 and fourth gear 17 also being represented in table 3 as GS3 and G4, respectively.
Table 3 table of operation logic in each driving mode (third embodiment)
Figure BDA0001848788820000141
Figure BDA0001848788820000151
Hereinafter, the power transmission route in each driving mode will be described in detail with reference to fig. 4 to 14.
(1) Pure electric drive mode
The first clutch 4, the second clutch 5 and the third clutch 6 are disconnected, the synchronizer 8 simultaneously disconnects the effective connection of the third gear set 16 to the third input shaft 11 and the output shaft 12 and the effective connection of the fourth gear 17 to the planetary gear mechanism 13 and the output shaft 12, the engine 1 does not work, the first motor 2 does not work, and the second motor 3 drives to establish a pure electric driving mode;
referring to fig. 4, the power transmission path in the driving mode is: the second motor 3- > output shaft 12.
(2) Series-parallel drive mode
Disconnecting the first clutch 4 and the second clutch 5, engaging the third clutch 6, effectively connecting the fourth gear 17 and the synchronizer 8 between the planetary gear mechanism 13 and the output shaft 12 by the synchronizer 8, driving the engine 1, positively rotating or negatively rotating the first motor 2, and driving the second motor 3 to establish a series-parallel driving mode;
referring to fig. 5, the power transmission route 1 in the driving mode is: the engine 1- > the third clutch 6- > the third input shaft 11- > the planetary gear mechanism 13- > the fourth gear 17, the synchronizer 8- > the output shaft 12;
the power transmission route 2 is: the first motor 2- > the planetary gear mechanism 13- > the fourth gear 17, the synchronizer 8- > the output shaft 12;
the power transmission line 3 is: the engine 1- > the third clutch 6- > the third input shaft 11- > the planetary gear mechanism 13- > the first motor 2;
the power transmission route 2 is a power transmission route when the first motor 2 is driven, and the power transmission route 2 is a power transmission route when the first motor 2 generates electricity; in the series-parallel driving mode, the engine 1 participates in driving the wheels 20, and the first motor 2 rotates forwards or backwards, so that the output of the ring gear 134 (or the planet carrier 133) for outputting power is adjusted, and the steady-state control of the rotating speed of the engine 1 is realized, so that the rotating speed of the output shaft 12 is adjusted.
(3) First parallel drive mode
The first clutch 4 is engaged, the second clutch 5 and the third clutch 6 are disconnected, the synchronizer 8 simultaneously disconnects the effective connection of the third gear set 16 to the third input shaft 11 and the output shaft 12 and the effective connection of the fourth gear 17 and the synchronizer 8 to the planetary gear mechanism 13 and the output shaft 12, the engine 1 is driven, the first motor 2 does not work, and the second motor 3 is driven to establish a first parallel driving mode;
referring to fig. 6, the power transmission route 1 in the driving mode is: the engine 1- > the first clutch 4- > the first input shaft 9- > the first gear set 14- > the output shaft 12;
the power transmission route 2 is: the output shaft 12 of the second motor 3- >.
(4) Second parallel drive mode
The second clutch 5 is engaged, the first clutch 4 and the third clutch 6 are disconnected, the synchronizer 8 simultaneously disconnects the effective connection of the third gear set 16 to the third input shaft 11 and the output shaft 12 and the effective connection of the fourth gear 17 and the synchronizer 8 to the planetary gear mechanism 13 and the output shaft 12, the engine 1 is driven, the first motor 2 does not work, and the second motor 3 is driven to establish a second parallel driving mode;
referring to fig. 7, the power transmission route 1 in the driving mode is: the engine 1- > the second clutch 5- > the second input shaft 10- > the second gear set 15- > the output shaft 12;
the power transmission route 2 is: the second motor 3- > output shaft 12.
(5) Third parallel drive mode
Engaging the third clutch 6, disengaging the first clutch 4 and the second clutch 5, the synchronizer 8 operatively connecting the third gear set 16 between the third input shaft 11 and the output shaft 12, the engine 1 driving, the first electric machine 2 not operating, the second electric machine 3 driving to establish a third parallel drive mode;
referring to fig. 8, the power transmission line 1 in the driving mode is: the engine 1- > the third clutch 6- > the third input shaft 11- > the third gear set 16- > the output shaft 12;
the power transmission route 2 is: the second motor 3- > output shaft 12.
In a first parallel drive mode, a second parallel drive mode, and a third parallel drive mode: the hybrid power driving system is driven by the engine 1 and the second motor 3 together, and realizes multi-gear output of the engine 1 and single-gear output of the second motor 3 by switching the first clutch 4, the second clutch 5, the third clutch 6 and the synchronizer 8.
(6) Direct drive mode of the first Engine (Motor No-load)
The first clutch 4 is engaged, the second clutch 5 and the third clutch 6 are disconnected, the synchronizer 8 simultaneously disconnects the effective connection of the third gear set 16 to the third input shaft 11 and the output shaft 12 and the effective connection of the fourth gear 17 and the synchronizer 8 to the planetary gear mechanism 13 and the output shaft 12, the engine 1 is driven, the first motor 2 does not work, and the second motor 3 does not work, so that a first engine direct drive mode is established;
referring to fig. 9, the power transmission path in the driving mode is: the engine 1- > the first clutch 4- > the first input shaft 9- > the first gear set 14- > the output shaft 12.
(7) Second Engine 1 direct drive mode (Motor No-load)
The second clutch 5 is engaged, the first clutch 4 and the third clutch 6 are disconnected, the synchronizer 8 simultaneously disconnects the effective connection of the third gear set 16 to the third input shaft 11 and the output shaft 12 and the effective connection of the fourth gear 17 and the synchronizer 8 to the planetary gear mechanism 13 and the output shaft 12, the engine 1 is driven, the first motor 2 does not work, and the second motor 3 does not work, so that the direct driving mode of the second engine 1 is established;
referring to fig. 10, the power transmission path in the driving mode is: the engine 1- > the second clutch 5- > the second input shaft 10- > the second gear set 15- > the output shaft 12.
(8) Third Engine 1 direct drive mode (Motor No-load)
Engaging the third clutch 6, disengaging the first clutch 4 and the second clutch 5, the synchronizer 8 effectively connecting the third gear set 16 between the third input shaft 11 and the output shaft 12, the engine 1 driving, the first motor 2 not working, the second motor 3 not working, so as to establish the third engine 1 direct driving mode;
referring to fig. 11, the power transmission path in the driving mode is: the engine 1- > the third clutch 6- > the third input shaft 11- > the third gear set 16- > the output shaft 12.
In the first engine direct drive mode, the second engine 1 direct drive mode, and the third engine 1 direct drive mode: the hybrid power driving system is driven by the engine 1, meanwhile, the first motor 2 and the second motor 3 do not work, and multi-gear output of the engine 1 is realized by switching the first clutch 4, the second clutch 5, the third clutch 6 and the synchronizer 8.
(9) Fourth Engine 1 direct drive mode (Motor generating)
The first clutch 4 is engaged, the second clutch 5 and the third clutch 6 are disconnected, the synchronizer 8 simultaneously disconnects the effective connection of the third gear set 16 to the third input shaft 11 and the output shaft 12 and the effective connection of the fourth gear 17 and the synchronizer 8 to the planetary gear mechanism 13 and the output shaft 12, the engine 1 is driven, the first motor 2 does not work, and the second motor 3 generates electricity to establish a direct driving mode of the fourth engine 1;
referring to fig. 12, the power transmission route 1 in the driving mode is: the engine 1- > the first clutch 4- > the first input shaft 9- > the first gear set 14- > the output shaft 12;
the power transmission line 2 is: the engine 1- > the first clutch 4- > the first input shaft 9- > the first gear set 14- > the output shaft 12- > the second motor 3.
(10) Fifth Engine 1 direct drive mode (Motor generating)
The second clutch 5 is engaged, the first clutch 4 and the third clutch 6 are disconnected, the synchronizer 8 simultaneously disconnects the effective connection of the third gear set 16 to the third input shaft 11 and the output shaft 12 and the effective connection of the fourth gear 17 and the synchronizer 8 to the planetary gear mechanism 13 and the output shaft 12, the engine 1 is driven, the first motor 2 does not work, and the second motor 3 generates electricity to establish a direct driving mode of the fifth engine 1;
referring to fig. 13, the power transmission route 1 in the driving mode is: the engine 1- > the second clutch 5- > the second input shaft 10- > the second gear set 15- > the output shaft 12;
the power transmission line 2 is: the engine 1- > the second clutch 5- > the second input shaft 10- > the second gear set 15- > the output shaft 12- > the second motor 3.
(11) Sixth Engine 1 direct drive mode (Motor generating)
The third clutch 6 is engaged, the first clutch 4 and the second clutch 5 are disconnected, the synchronizer 8 effectively connects the third gear set 16 between the third input shaft 11 and the output shaft 12, the engine 1 is driven, the first motor 2 does not work, and the second motor 3 generates electricity so as to establish a sixth engine 1 direct drive mode;
referring to fig. 14, the power transmission line 1 in the driving mode is: the engine 1- > the third clutch 6- > the third input shaft 11- > the third gear set 16- > the output shaft 12;
the power transmission route 2 is: the engine 1- > the third clutch 6- > the third input shaft 11- > the third gear set 16- > the output shaft 12- > the second motor 3.
In the fourth engine 1 direct drive mode, the fifth engine 1 direct drive mode, and the sixth engine 1 direct drive mode: the hybrid power driving system is driven by the engine 1, meanwhile, the engine 1 drives the second motor 3 to generate power for a battery, and multi-gear output of the engine 1 is realized by switching the first clutch 4, the second clutch 5, the third clutch 6 and the synchronizer 8.
Fourth embodiment
Referring to fig. 3, in the fourth embodiment, a fourth clutch 7 is added on the basis of the third embodiment, the output shaft 12 includes a first shaft section and a second shaft section connected with the first shaft section through the fourth clutch 7, the second gear set 15 is connected with the first shaft section, and the first gear set 14, the third gear set 16, the fourth gear 17 and the second motor 3 are connected with the second shaft section. The other structures of the fourth embodiment are the same as those of the third embodiment, and are not described again.
When the engine 1 outputs power through the second clutch 5, the second input shaft 10, and the second gear set 15, the fourth clutch 7 is disengaged, reducing the load and improving the vehicle economy.
The hybrid drive system provided by the fourth embodiment has the same drive mode as the third embodiment, and is not described herein again.
Table 4 table of operation logic in each driving mode (fourth embodiment)
Figure BDA0001848788820000181
As can be seen from table 3 and table 4, the operating states of the first clutch 4, the second clutch 5, the third clutch 6, the synchronizer 8, the engine 1, the first electric machine 2, and the second electric machine 3 in the respective drive modes of the fourth embodiment and the corresponding drive modes of the third embodiment are substantially the same; the only difference is that:
the fourth embodiment adds the operation state control of the fourth clutch 7, and the rest of the operation state control and the power transmission route are the same as those of the third embodiment, and the description of the fourth embodiment is omitted.
Fifth embodiment
Referring to fig. 15, a vehicle 100 according to a fifth embodiment of the present invention includes a hybrid drive system 200 according to the first, second, third, or fourth embodiment.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A hybrid power driving system is characterized by comprising an engine, a first motor, a second motor, a first clutch, a second clutch, a third clutch, a synchronizer, a first input shaft, a second input shaft, a third input shaft, an output shaft, a first gear set, a second gear set, a third gear set, a fourth gear and a planetary gear mechanism;
the engine is connected with the first input shaft, the second input shaft and the third input shaft through the first clutch, the second clutch and the third clutch respectively;
the first input shaft and the second input shaft are respectively connected with the output shaft in a speed reduction mode through the first gear set and the second gear set, and the third input shaft is connected with the output shaft in a speed reduction mode through the third gear set;
the fourth gear is arranged on the output shaft;
the planetary gear mechanism comprises a sun gear, a planet carrier and a gear ring;
the sun gear is connected to a rotating shaft of the first motor;
one of the planet carrier and the gear ring is connected with the third input shaft, and the other is connected with the fourth gear;
said synchronizer selectively operatively connecting said third gear set between said third input shaft and said output shaft or operatively connecting said fourth gear between said planetary gear mechanism and said output shaft, or simultaneously disconnecting said third gear set from operatively connecting said third input shaft and said output shaft and said fourth gear from operatively connecting said planetary gear mechanism and said output shaft;
the second motor is connected with the output shaft;
the first gear set and the second gear set correspond to two speed ratios respectively, and the speed ratio of the third gear set is different from the speed ratio of the first gear set and the speed ratio of the second gear set.
2. The hybrid drive system of claim 1 wherein said third gear set includes a third drive gear disposed on said third input shaft and a third driven gear rotatably disposed on said output shaft, said third drive gear being in meshing engagement with said third driven gear;
the fourth gear is rotatably arranged on the output shaft;
the synchronizer is arranged on the output shaft and can be connected with one of the third driven gear and the fourth gear or disconnected with the third driven gear and the fourth gear at the same time.
3. The hybrid drive system of claim 1, further comprising a fourth clutch, the output shaft including a first shaft section and a second shaft section connected to the first shaft section through the fourth clutch, the second gear set connected to the first shaft section, the first gear set, the third gear set, the fourth gear, and the second electric machine connected to the second shaft section.
4. The hybrid drive system of claim 1, wherein said first clutch, said second clutch and said third clutch are integrated three clutches, said first input shaft and said second input shaft are hollow shafts, said first input shaft is rotatably disposed within a shaft bore of said second input shaft, and said third input shaft is rotatably disposed within a shaft bore of said first input shaft.
5. The hybrid drive system of claim 4, wherein the first clutch, the second clutch, and the third clutch are coaxially fixed;
the third clutch is embedded in the first clutch and the second clutch, or the first clutch and the third clutch are embedded in the second clutch.
6. The hybrid drive system according to claim 1 or 2, characterized in that the hybrid drive system has an electric-only drive mode, a series-parallel drive mode, a first parallel drive mode, a second parallel drive mode, a third parallel drive mode, a first engine direct drive mode, a second engine direct drive mode, a third engine direct drive mode, a fourth engine direct drive mode, a fifth engine direct drive mode, and a sixth engine direct drive mode; wherein,
disconnecting the first clutch, the second clutch and the third clutch, disconnecting the effective connection of the third gear set to the third input shaft and the output shaft and the effective connection of the fourth gear set to the planetary gear mechanism and the output shaft simultaneously by the synchronizer, enabling the engine to be out of work, enabling the first motor to be out of work, and enabling the second motor to be driven to establish an electric pure driving mode;
disconnecting the first clutch and the second clutch, engaging the third clutch, the synchronizer operatively connecting the fourth gear between the planetary gear mechanism and the output shaft, the engine driving, the first motor rotating in a forward or reverse direction, the second motor driving, to establish a series-parallel drive mode;
engaging the first clutch, disengaging the second clutch and the third clutch, simultaneously disengaging the third gear set from operative connection with the third input shaft and the output shaft and the fourth gear from operative connection with the planetary gear mechanism and the output shaft, the engine being driven, the first motor being inoperative, the second motor being driven to establish a first parallel drive mode;
engaging the second clutch, disengaging the first clutch and the third clutch, simultaneously disengaging the third gear set from operative connection with the third input shaft and the output shaft and the fourth gear from operative connection with the planetary gear mechanism and the output shaft, the engine being driven, the first motor being inoperative, the second motor being driven to establish a second parallel drive mode;
engaging the third clutch, disengaging the first clutch and the second clutch, the synchronizer operatively connecting the third gear set between the third input shaft and the output shaft, the engine driving, the first motor not operating, the second motor driving to establish a third parallel drive mode;
engaging the first clutch, disengaging the second clutch and the third clutch, simultaneously disengaging the third gear set from operative connection with the third input shaft and the output shaft and the fourth gear from operative connection with the planetary gear mechanism and the output shaft, the engine being driven, the first electric machine being inoperative, the second electric machine being inoperative to establish a first engine direct drive mode;
engaging the second clutch, disengaging the first clutch and the third clutch, simultaneously disengaging the third gear set from operative connection with the third input shaft and the output shaft and the fourth gear from operative connection with the planetary gear mechanism and the output shaft, the engine being driven, the first electric machine being inoperative, the second electric machine being inoperative to establish a second engine direct drive mode;
engaging the third clutch and disengaging the first clutch and the second clutch, the synchronizer operatively connecting the third gear set between the third input shaft and the output shaft, the engine driving, the first electric machine not operating, the second electric machine not operating to establish a third engine direct drive mode;
engaging said first clutch and disengaging said second clutch and said third clutch, said synchronizer simultaneously disengaging said third gear set from operatively connecting said third input shaft and said output shaft and said fourth gear from operatively connecting said planetary gear mechanism and said output shaft, said engine is driven, said first electric machine is not operated, said second electric machine generates electricity to establish a fourth engine direct drive mode;
engaging said second clutch and disengaging said first clutch and said third clutch, said synchronizer simultaneously disengaging said third gear set from operatively connecting said third input shaft and said output shaft and said fourth gear from operatively connecting said planetary gear mechanism and said output shaft, said engine is driven, said first electric machine is not operated, said second electric machine generates electricity to establish a fifth engine direct drive mode;
engaging the third clutch, disengaging the first clutch and the second clutch, the synchronizer operatively connecting the third gear set between the third input shaft and the output shaft, the engine driving, the first electric machine not operating, the second electric machine generating electricity to establish a sixth engine direct drive mode.
7. The hybrid drive system of claim 3 having an electric-only drive mode, a series-parallel drive mode, a first parallel drive mode, a second parallel drive mode, a third parallel drive mode, a first engine direct drive mode, a second engine direct drive mode, a third engine direct drive mode, a fourth engine direct drive mode, a fifth engine direct drive mode, and a sixth engine direct drive mode; wherein,
the first clutch, the second clutch and the third clutch are disconnected, the fourth clutch is engaged, the synchronizer simultaneously disconnects the third gear set from effectively connecting the third input shaft and the output shaft and the fourth gear from effectively connecting the planetary gear mechanism and the output shaft, the engine does not work, the first motor does not work, and the second motor drives to establish a pure electric driving mode;
disconnecting the first clutch and the second clutch, engaging the third clutch and the fourth clutch, the synchronizer operatively connecting the fourth gear between the planetary gear mechanism and the output shaft, the engine driving, the first motor rotating in a forward or reverse direction, the second motor driving to establish a series-parallel drive mode;
engaging the first clutch and the fourth clutch, disengaging the second clutch and the third clutch, simultaneously disengaging the third gear set from operative connection with the third input shaft and the output shaft and the fourth gear from operative connection with the planetary gear mechanism and the output shaft, the engine being driven, the first motor being inoperative, the second motor being driven to establish a first parallel drive mode;
engaging said second clutch, disengaging said first clutch, said third clutch and said fourth clutch, said synchronizer simultaneously disengaging said third gear set from operative connection with said third input shaft and said output shaft and said fourth gear from operative connection with said planetary gear mechanism and said output shaft, said engine driving, said first motor not operating, said second motor driving to establish a second parallel drive mode;
engaging the third clutch and the fourth clutch, disengaging the first clutch and the second clutch, the synchronizer operatively connecting the third gear set between the third input shaft and the output shaft, the engine driving, the first electric machine not operating, the second electric machine driving to establish a third parallel drive mode;
engaging the first clutch and the fourth clutch, disengaging the second clutch and the third clutch, simultaneously disengaging the third gear set from operative connection with the third input shaft and the output shaft and the fourth gear set from operative connection with the planetary gear mechanism and the output shaft, the engine being driven, the first electric machine being inoperative, the second electric machine being inoperative to establish a first engine direct drive mode;
engaging the second clutch, disengaging the first clutch, the third clutch and the fourth clutch, simultaneously disengaging the third gear set from operative connection with the third input shaft and the output shaft and the fourth gear from operative connection with the planetary gear mechanism and the output shaft, the engine being driven, the first motor being inoperative, the second motor being inoperative to establish a second engine direct drive mode;
engaging the third clutch and the fourth clutch, disengaging the first clutch and the second clutch, the synchronizer operatively connecting the third gear set between the third input shaft and the output shaft, the engine driving, the first electric machine not operating, the second electric machine not operating to establish a third engine direct drive mode;
engaging said first clutch and said fourth clutch, disengaging said second clutch and said third clutch, simultaneously disengaging said third gear set from operative connection with said third input shaft and said output shaft and said fourth gear set from operative connection with said planetary gear mechanism and said output shaft, said engine being driven, said first electric machine being inoperative, said second electric machine being generating electric power to establish a fourth engine direct drive mode;
engaging said second clutch and disengaging said first clutch, said third clutch and said fourth clutch, said synchronizer simultaneously disengaging operative connection of said third gear set to said third input shaft and said output shaft and operative connection of said fourth gear to said planetary gear mechanism and said output shaft, said engine driven, said first electric machine not operating, said second electric machine generating electricity to establish a fifth engine direct drive mode;
engaging the third clutch and the fourth clutch, disengaging the first clutch and the second clutch, the synchronizer operatively connecting the third gear set between the third input shaft and the output shaft, the engine driving, the first electric machine not operating, the second electric machine generating electricity to establish a sixth engine direct drive mode.
8. A vehicle comprising the hybrid drive system of any one of claims 1-7.
CN201811284787.3A 2018-10-31 2018-10-31 Hybrid power driving system and vehicle Active CN111114278B (en)

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