CN112319208A - Hybrid power driving system and vehicle - Google Patents

Hybrid power driving system and vehicle Download PDF

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Publication number
CN112319208A
CN112319208A CN201910718740.1A CN201910718740A CN112319208A CN 112319208 A CN112319208 A CN 112319208A CN 201910718740 A CN201910718740 A CN 201910718740A CN 112319208 A CN112319208 A CN 112319208A
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CN
China
Prior art keywords
gear
clutch
motor
shaft
mode
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Pending
Application number
CN201910718740.1A
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Chinese (zh)
Inventor
祁宏钟
张安伟
李罡
王川
吴为理
任晓华
郑峰
杨洋
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Guangzhou Automobile Group Co Ltd
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Guangzhou Automobile Group Co Ltd
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Application filed by Guangzhou Automobile Group Co Ltd filed Critical Guangzhou Automobile Group Co Ltd
Priority to CN201910718740.1A priority Critical patent/CN112319208A/en
Publication of CN112319208A publication Critical patent/CN112319208A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/44—Series-parallel type
    • B60K6/442—Series-parallel switching type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • 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
    • B60K2006/381—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 characterized by driveline brakes
    • 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

Abstract

A hybrid power driving system comprises an engine, a shell, a first clutch, an input shaft, a first motor, a planetary gear device, a second clutch, a braking device, an intermediate shaft, a second motor and a differential mechanism, wherein the planetary gear device comprises a sun gear, a planet carrier and a gear ring; the first clutch comprises a first inner hub, a first friction plate, a first steel sheet and a first outer hub, the first inner hub is connected with the engine, the first inner hub is connected with the first friction plate through a spline, the first outer hub is connected with the first steel sheet through a spline, and the first outer hub is connected with the input shaft; the planet carrier is connected with the intermediate shaft; the second motor is connected with the intermediate shaft; the intermediate shaft is connected with the differential; the second clutch is used for combining or separating the sun gear and the gear ring, and the braking device is used for braking or unlocking the sun gear. The hybrid power driving system of the invention can realize a plurality of driving modes. The invention also relates to a vehicle.

Description

Hybrid power driving system and vehicle
Technical Field
The invention relates to the technical field of new energy, in particular to a hybrid power driving system and a vehicle.
Background
With the increasing demand of environmental protection and national energy strategy for reducing petroleum import, the development of environment-friendly and energy-saving automobiles becomes the development direction of the automobile industry.
In energy-saving automobiles and new energy automobiles, the technical bottlenecks of long charging time and short driving mileage in winter of pure electric automobiles are not broken through yet; the cost of the hydrogen fuel cell vehicle is high, and the construction of the hydrogenation infrastructure needs time. The hybrid electric vehicle can realize energy conservation and emission reduction even by utilizing the existing energy charging facilities, and is a relatively practical and feasible solution at present, so that various large vehicle enterprises launch or develop respective hybrid electric vehicle models.
The hybrid vehicle type realizes energy conservation, needs to have multiple working modes and is switched to the working mode with the best economy according to the actual conditions such as vehicle speed and the torque demand of the whole vehicle. Therefore, in order to achieve energy saving, it is necessary to design a hybrid transmission device having a plurality of operation modes.
Disclosure of Invention
In view of this, the present invention provides a hybrid power driving system, which has a simple structure, can implement multiple driving modes, and has high flexibility.
A hybrid drive system comprising an engine, a housing, a first clutch, an input shaft, a first motor, a planetary gear arrangement, a second clutch, a brake device, an intermediate shaft, a second motor, and a differential, the planetary gear arrangement including a sun gear, a planet carrier, and a ring gear, wherein:
the engine is connected with the input shaft through the first clutch, the first motor is connected with the input shaft, and the input shaft and the intermediate shaft are fixed in the shell through the bearing;
the first clutch is used for combining or separating the engine and the input shaft, and comprises a first inner hub, a first friction plate, a first steel sheet and a first outer hub, one end of the first inner hub is connected with the engine, the other end of the first inner hub is connected with the first friction plate through a spline, one end of the first outer hub is connected with the first steel sheet through a spline, and the other end of the first outer hub is connected with the input shaft;
the planet carrier is connected with the intermediate shaft;
the second motor is connected with the intermediate shaft;
the intermediate shaft is connected with the differential;
the second clutch is used for combining or separating the sun gear and the gear ring, and the braking device is used for braking or unlocking the sun gear.
In an embodiment of the present invention, the planetary gear device further includes a pin and a planetary gear, the pin is connected to the planetary carrier, the planetary gear is connected to the pin, and the planetary gear is engaged with the ring gear and the sun gear respectively.
In an embodiment of the present invention, a first gear is fixed on the input shaft, a shaft sleeve is fixed on one side of the first gear, the first gear and the shaft sleeve are coaxially arranged, the input shaft passes through the shaft sleeve, the shaft sleeve is fixed on the input shaft through a coupling sleeve, the first motor has a first motor output shaft, a second gear is fixed on the first motor output shaft, and the second gear is meshed with the first gear.
In an embodiment of the present invention, the second clutch includes a second inner hub, a second friction plate, a second steel plate, and a second outer hub, one end of the second inner hub is connected to the sun gear, the other end of the second inner hub is connected to the second friction plate through a spline, one end of the second outer hub is connected to the second steel plate through a spline, the other end of the second outer hub is connected to the gear ring, and the second outer hub is connected to the shaft sleeve.
In an embodiment of the present invention, a third gear and a fourth gear are fixedly disposed on the intermediate shaft, a differential gear is disposed on the differential, the third gear is engaged with the carrier, and the fourth gear is engaged with the differential gear.
In an embodiment of the present invention, the third gear is fixed to the intermediate shaft by a spline, and the fourth gear is welded to the intermediate shaft.
In an embodiment of the present invention, the second motor has a second motor output shaft, a fifth gear is fixedly disposed on the second motor output shaft, and the fifth gear is engaged with the third gear.
In an embodiment of the present invention, the braking device includes a third inner hub, a third friction plate, a third steel sheet, and a third outer hub, one end of the third inner hub is connected to the third friction plate through a spline, the other end of the third inner hub is connected to the sun gear, one end of the third outer hub is connected to the third steel sheet through a spline, and the other end of the third outer hub is fixed to the housing.
In an embodiment of the invention, the hybrid power driving system has a single-motor pure electric mode, a dual-motor pure electric one-gear mode, a dual-motor pure electric two-gear mode, a parallel hybrid one-gear mode, a parallel hybrid two-gear mode, a series range extending mode, an engine direct-drive one-gear mode, and an engine direct-drive two-gear mode.
The invention also provides a vehicle comprising the hybrid power driving system.
The hybrid power driving system has a simple overall structure, can realize various driving modes, and has high flexibility.
Drawings
FIG. 1 is a schematic illustration of a hybrid drive system of the present invention.
Fig. 2 is a partial cross-sectional structural schematic view of the hybrid drive system of the present invention.
Detailed Description
Fig. 1 is a schematic diagram of a hybrid drive system of the present invention, and fig. 2 is a partial sectional structural schematic diagram of the hybrid drive system of the present invention, and as shown in fig. 1 and 2, the hybrid drive system includes an engine 11, a housing 12, a first clutch 13, an input shaft 14, a first electric machine 15, a planetary gear device 16, a second clutch 17, a brake device 18, an intermediate shaft 19, a second electric machine 21, a differential 22, and a power battery (not shown).
The planetary gear device 16 is arranged in the housing 12, the planetary gear device 16 comprises a sun gear 161, a planet carrier 162, a pin 163, a planet gear 164 and a gear ring 165, the pin 163 is connected with the planet carrier 162, the planet gear 164 is connected with the pin 163, and the planet gear 164 is meshed with the gear ring 165 and the sun gear 161 respectively.
The engine 11 is connected to an input shaft 14 via a first clutch 13, and a first electric machine 15 is connected to the input shaft 14. In the present embodiment, the engine 11 is a gasoline engine or a diesel engine, and the first electric machine 15 is a driving and power generating integrated machine.
The input shaft 14 and the intermediate shaft 19 are disposed in the housing 12, the input shaft 14 and the intermediate shaft 19 are fixed in the housing 12 by means of multi-bearings, i.e., the bearings 144 are fixed on the housing 12, and the input shaft 14 and the intermediate shaft 19 are respectively connected with the corresponding bearings 144.
A first clutch 13 is provided in the housing 12, and the first clutch 13 is used to couple or decouple the engine 11 and the input shaft 14. When the first clutch 13 is engaged, the power of the engine 11 can be transmitted to the input shaft 14; when the first clutch 13 is disengaged, the engine 11 is disconnected from the input shaft 14.
Specifically, as shown in fig. 2, the first clutch 13 includes a first inner hub 131, a first friction plate 132, a first steel plate 133, and a first outer hub 134, one end of the first inner hub 131 is connected to the engine 11, the other end of the first inner hub 131 is connected to the first friction plate 132 through a spline, one end of the first outer hub 134 is connected to the first steel plate 133 through a spline, and the other end of the first outer hub 134 is connected to the input shaft 14, and when the first clutch 13 is engaged, that is, when the first clutch 13 is energized with oil, the first steel plate 133 is attached to the first friction plate 132.
A first gear 141 is fixedly arranged on the input shaft 14, a shaft sleeve 142 is fixed on one side of the first gear 141, the first gear 141 and the shaft sleeve 142 are coaxially arranged, the input shaft 14 passes through the shaft sleeve 142, and the shaft sleeve 142 is fixed on the input shaft 14 through a connecting sleeve 143; the first motor 15 has a first motor output shaft 151, and a second gear 152 is fixedly disposed on the first motor output shaft 151, and the second gear 152 is engaged with the first gear 141.
A second clutch 17 is provided in the housing 12, and the second clutch 17 is used to couple or decouple the sun gear 161 and the ring gear 165. When the second clutch 17 is engaged, the sun gear 161 and the ring gear 165 are locked together; when the second clutch 17 is disengaged, the sun gear 161 and the ring gear 165 are disengaged from each other.
Specifically, as shown in fig. 2, the second clutch 17 includes a second inner hub 171, a second friction plate 172, a second steel plate 173, and a second outer hub 174, one end of the second inner hub 171 is connected to the sun gear 161, the other end of the second inner hub 171 is connected to the second friction plate 172 by splines, one end of the second outer hub 174 is connected to the second steel plate 173 by splines, the other end of the second outer hub 174 is connected to the ring gear 165, the second outer hub 174 is connected to the sleeve 142, and when the second clutch 17 is engaged, i.e., the second clutch 17 is pressurized with oil, the second steel plate 173 is abutted to the second friction plate 172.
A brake 18 is provided within the housing 12, the brake 18 being used to brake or unlock the sun gear 161. Specifically, as shown in fig. 2, the brake device 18 includes a third inner hub 181, a third friction plate 182, a third steel plate 183, and a third outer hub 184, one end of the third inner hub 181 is connected to the third friction plate 182 through a spline, the other end of the third inner hub 181 is connected to the sun gear 161, one end of the third outer hub 184 is connected to the third steel plate 183 through a spline, and the other end of the third outer hub 184 is fixed to the housing 12, so that when the brake device 18 is engaged, that is, when the brake device 18 is pressurized with oil, the third steel plate 183 is abutted to the third friction plate 182. In the present embodiment, the braking device 18 is, for example, a brake or a one-way clutch. When the brake device 18 brakes the sun gear 161, the sun gear 161 is fixed against rotation relative to the input shaft 14; when the brake 18 unlocks the sun gear 161, the sun gear 161 can rotate relative to the input shaft 14.
The planet carrier 162 is connected with the intermediate shaft 19, specifically, a third gear 191 and a fourth gear 192 are fixedly arranged on the intermediate shaft 19, the third gear 191 and the fourth gear 192 are arranged at intervals, and the third gear 191 and the planet carrier 162 are meshed with each other.
Further, the third gear 191 is fixed to the intermediate shaft 19 by splines, and the fourth gear 192 is welded to the intermediate shaft 19, but not limited thereto.
The second motor 21 is connected with the intermediate shaft 19, specifically, the second motor 21 is arranged in parallel with the first motor 15, the second motor 21 has a second motor output shaft 211, a fifth gear 212 is fixedly arranged on the second motor output shaft 211, and the fifth gear 212 is meshed with the third gear 191. In the present embodiment, the second motor 21 is a driving and power generating integrated machine.
The intermediate shaft 19 is connected to the differential 22, and specifically, a differential gear 221 is provided on the differential 22, and the differential gear 221 and the fourth gear 192 are meshed with each other. The differential 22 is used to adjust the difference between the rotation speeds of the left and right wheels, so that the left and right wheels roll at different rotation speeds when the vehicle turns or runs on an uneven road surface, thereby ensuring that the wheels are driven by the two sides to perform pure rolling motion.
Further, the differential gear 221 is connected to the differential 22 by bolts, but not limited thereto.
The power battery is electrically connected with the first motor 15 and the second motor 21 respectively. The power battery supplies electric energy for driving the first electric motor 15 and the second electric motor 21, and the electric energy generated when the first electric motor 15 and the second electric motor 21 are driven to rotate can be stored in the power battery.
In the present embodiment, when the first clutch 13 couples the engine 11 and the input shaft 14, and the brake device 18 unlocks the sun gear 161, the fluctuation of the rotation speed of the engine 11 is transmitted to the planetary gear device 16, so that NVH problems such as gear rattling will occur between the sun gear 161 and the planetary gears 164 in the idling state, and the sun gear 161 is not in the idling state by applying a slip friction torque to the sun gear 161 by the second clutch 17 or the brake device 18, thereby avoiding NVH problems such as gear rattling.
The hybrid power driving system has a single-motor pure electric mode, a double-motor pure electric one-gear mode, a double-motor pure electric two-gear mode, a parallel hybrid one-gear mode, a parallel hybrid two-gear mode, a series range-extending mode, an engine direct-drive one-gear mode and an engine direct-drive two-gear mode.
Specifically, in the single-motor electric-only mode, the first clutch 13 is disengaged, the second clutch 17 is disengaged, the brake device 18 unlocks the sun gear 161, the engine 11 and the first motor 15 are not started, and the second motor 21 drives the same. The power transmission has a path from the second electric machine 21 through the fifth gear 212 to the third gear 191, the intermediate shaft 19, the fourth gear 192, the differential gear 221, the differential 22, and finally to the wheels.
In the two-motor electric-only first-gear mode, the first clutch 13 is disengaged, the second clutch 17 is disengaged, the sun gear 161 is braked by the brake device 18, the engine 11 is not started, and the first motor 15 and the second motor 21 drive the engine. The power transmission has two paths, wherein the first path is transmitted to the third gear 191, the intermediate shaft 19, the fourth gear 192, the differential gear 221, the differential 22 and finally wheels by the first motor 15 through the gear ring 165 and the planet carrier 162; path two is transmitted from the second motor 21 to the third gear 191, the intermediate shaft 19, the fourth gear 192, the differential gear 221, the differential 22, and finally to the wheels through the fifth gear 212.
In the two-motor electric-only two-gear mode, the first clutch 13 is disengaged, the second clutch 17 is engaged, the sun gear 161 is unlocked by the brake device 18, the engine 11 is not started, and the first motor 15 and the second motor 21 drive the engine. At this time, since the second clutch 17 is engaged, the carrier 162 and the ring gear 165 are locked together, so that the entire planetary gear device 16 is fixedly connected and integrally rotated at a speed ratio of 1. The power transmission has two paths, wherein the path one is transmitted to the third gear 191, the intermediate shaft 19, the fourth gear 192, the differential gear 221, the differential 22 and finally the wheels by the first motor 15 through the whole planetary gear device 16; and the second path is transmitted to the third gear 191, the intermediate shaft 19, the fourth gear 192, the differential gear 221, the differential 22 and finally wheels through the third fifth gear by the second motor 21.
In the parallel hybrid first-gear mode, the first clutch 13 is engaged, the second clutch 17 is disengaged, and the brake device 18 brakes the sun gear 161 and is driven by the engine 11, the first electric machine 15, and the second electric machine 21. The power transmission has three paths, wherein the path one is transmitted from the engine 11 to the intermediate shaft 19, the fourth gear 192, the differential gear 221, the differential 22 and finally to the wheels through the input shaft 14, the ring gear 165, the planet carrier 162 and the third gear 191; path two, the first motor 15 transmits the torque to the third gear 191, the intermediate shaft 19, the fourth gear 192, the differential gear 221, the differential 22, and finally to the wheels through the ring gear 165 and the carrier 162; path three is transmitted by the second motor 21 through the fifth gear 212 to the third gear 191, the intermediate shaft 19, the fourth gear 192, the differential gear 221, the differential 22, and finally to the wheels.
In the parallel hybrid two-gear mode, the first clutch 13 is engaged, the second clutch 17 is engaged, and the brake device 18 unlocks the sun gear 161 and is driven by the engine 11, the first motor 15, and the second motor 21. At this time, since the second clutch 17 is engaged, the carrier 162 and the ring gear 165 are locked together, so that the entire planetary gear device 16 is fixedly connected and integrally rotated at a speed ratio of 1. The power transmission has three paths, wherein the path one is transmitted from the engine 11 to the third gear 191, the intermediate shaft 19, the fourth gear 192, the differential gear 221, the differential 22 and finally to the wheels through the whole planetary gear device 16; path two, from the first electric machine 15 through the whole planetary gear 16 to the third gear 191, the intermediate shaft 19, the fourth gear 192, the differential gear 221, the differential 22, and finally to the wheels; path three is transmitted by the second motor 21 through the fifth gear 212 to the third gear 191, the intermediate shaft 19, the fourth gear 192, the differential gear 221, the differential 22, and finally to the wheels.
In the series range extending mode, the first clutch 13 is disengaged, the second clutch 17 is disengaged, the brake device 18 unlocks the sun gear 161, the first motor 15 generates electric power, and the second motor 21 generates electric power to start the engine 11.
In the engine direct drive first gear mode, the first clutch 13 is engaged, the second clutch 17 is disengaged, the sun gear 161 is braked by the brake device 18, and the first electric machine 15 and the second electric machine 21 are not started and are driven by the engine 11. The power transmission has a path from the engine 11 through the input shaft 14, the ring gear 165, the carrier 162, the third gear 191 to the intermediate shaft 19, the fourth gear 192, the differential gear 221, the differential 22, and finally to the wheels.
In the engine direct drive two-gear mode, the first clutch 13 is engaged, the second clutch 17 is engaged, the sun gear 161 is unlocked by the brake device 18, and the first motor 15 and the second motor 21 are not started and are driven by the engine 11. At this time, since the second clutch 17 is engaged, the carrier 162 and the ring gear 165 are locked together, so that the entire planetary gear device 16 is fixedly connected and integrally rotated at a speed ratio of 1. The power transmission has a path, where path one is transmitted from the engine 11 through the entire planetary gear arrangement 16 to the third gear 191, the intermediate shaft 19, the fourth gear 192, the differential gear 221, the differential 22, and finally to the wheels.
The hybrid power driving system provided by the embodiment of the invention has a single-motor pure electric mode, a double-motor pure electric one-gear mode, a double-motor pure electric two-gear mode, a parallel hybrid one-gear mode, a parallel hybrid two-gear mode, a series range extending mode, an engine direct-drive one-gear mode and an engine direct-drive two-gear mode, and can automatically realize the switching of different modes according to the SOC (state of charge) value of a power battery and the vehicle speed requirement. For example, judging the magnitude relation between the SOC value of the power battery and a first threshold value, or simultaneously judging the magnitude relation between the SOC value of the power battery and the first threshold value and the magnitude relation between the vehicle speed and a second threshold value; and switching the working mode of the hybrid power driving system according to the judgment result. It should be noted that the first threshold is used to determine the SOC value of the power battery, and the second threshold is used to determine the vehicle speed, and the embodiment does not limit the value ranges of the first threshold and the second threshold, and may be freely set according to a specific control strategy, and the values of the first threshold and the second threshold are different under different control strategies. After the first threshold value and the second threshold value are set, automatic judgment is carried out, and automatic switching is carried out among various modes according to the judgment result.
In summary, the hybrid power drive system provided by the embodiment of the invention has a simpler overall structure, can realize a single-motor pure electric mode, a double-motor pure electric one-gear mode, a double-motor pure electric two-gear mode, a parallel hybrid one-gear mode, a parallel hybrid two-gear mode, a series range extending mode, an engine direct-drive one-gear mode and an engine direct-drive two-gear mode, and has stronger flexibility. When the operation mode is switched, the second motor 21 is driven, and there is no interruption in power. Further, the hybrid drive system of the invention can avoid the problem of gear rattle when the engine 11 inputs power and the sun gear 161 is in an idling state. The hybrid power driving system of the invention does not need to adjust the torque of the second motor 21 coupled with the wheel end, has little influence on the drivability and ensures the stable running of the vehicle. The hybrid power driving system can be applied to two-wheel drive vehicles or four-wheel drive vehicles, and is good in platformization.
Further, the invention also provides a vehicle comprising the hybrid power driving system.
The above embodiments are only examples of the present invention and are not intended to limit the scope of the present invention, and all equivalent changes and modifications made according to the contents described in the claims of the present invention should be included in the claims of the present invention.

Claims (10)

1. A hybrid drive system, comprising an engine (11), a housing (12), a first clutch (13), an input shaft (14), a first electric machine (15), a planetary gear device (16), a second clutch (17), a brake device (18), an intermediate shaft (19), a second electric machine (21), and a differential (22), the planetary gear device (16) comprising a sun gear (161), a planet carrier (162), and a ring gear (165), wherein:
the engine (11) is connected with the input shaft (14) through the first clutch (13), the first motor (15) is connected with the input shaft (14), and the input shaft (14) and the intermediate shaft (19) are fixed in the shell (12) through a bearing (144);
the first clutch (13) is used for combining or separating the engine (11) and the input shaft (14), the first clutch (13) comprises a first inner hub (131), a first friction plate (132), a first steel sheet (133) and a first outer hub (134), one end of the first inner hub (131) is connected with the engine (11), the other end of the first inner hub (131) is connected with the first friction plate (132) through a spline, one end of the first outer hub (134) is connected with the first steel sheet (133) through a spline, and the other end of the first outer hub (134) is connected with the input shaft (14);
the planet carrier (162) is connected with the intermediate shaft (19);
the second motor (21) is connected with the intermediate shaft (19);
the intermediate shaft (19) is connected with the differential (22);
the second clutch (17) is used for combining or separating the sun gear (161) and the ring gear (165), and the braking device (18) is used for braking or unlocking the sun gear (161).
2. Hybrid drive system according to claim 1, characterised in that the planetary gear (16) further comprises a pin (163) and a planet wheel (164), the pin (163) being connected to the planet carrier (162), the planet wheel (164) being connected to the pin (163), the planet wheel (164) being in mesh with the ring gear (165) and the sun gear (161), respectively.
3. The hybrid power driving system according to claim 1, wherein a first gear (141) is fixed on the input shaft (14), a shaft sleeve (142) is fixed on one side of the first gear (141), the first gear (141) is coaxially arranged with the shaft sleeve (142), the input shaft (14) passes through the shaft sleeve (142), the shaft sleeve (142) is fixed on the input shaft (14) through a coupling sleeve (143), the first motor (15) has a first motor output shaft (151), a second gear (152) is fixed on the first motor output shaft (151), and the second gear (152) is meshed with the first gear (141).
4. The hybrid drive system according to claim 3, wherein the second clutch (17) includes a second inner hub (171), a second friction plate (172), a second steel plate (173), and a second outer hub (174), one end of the second inner hub (171) is connected to the sun gear (161), the other end of the second inner hub (171) is connected to the second friction plate (172) by splines, one end of the second outer hub (174) is connected to the second steel plate (173) by splines, the other end of the second outer hub (174) is connected to the ring gear (165), and the second outer hub (174) is connected to the sleeve (142).
5. Hybrid drive system according to claim 1, characterized in that a third gear (191) and a fourth gear (192) are fixedly arranged on the intermediate shaft (19), a differential gear (221) is arranged on the differential (22), the third gear (191) is in mesh with the planet carrier (162), and the fourth gear (192) is in mesh with the differential gear (221).
6. Hybrid drive system according to claim 5, characterized in that the third gear wheel (191) is splined on the intermediate shaft (19) and the fourth gear wheel (192) is welded on the intermediate shaft (19).
7. Hybrid drive system according to claim 5, characterized in that the second electric machine (21) has a second electric machine output shaft (211), a fifth gear (212) being fixedly arranged on the second electric machine output shaft (211), the fifth gear (212) being in mesh with the third gear (191).
8. The hybrid drive system according to claim 1, wherein the brake device (18) includes a third inner hub (181), a third friction plate (182), a third steel plate (183), and a third outer hub (184), one end of the third inner hub (181) is connected to the third friction plate (182) by a spline, the other end of the third inner hub (181) is connected to the sun gear (161), one end of the third outer hub (184) is connected to the third steel plate (183) by a spline, and the other end of the third outer hub (184) is fixed to the housing (12).
9. The hybrid drive system according to any one of claims 1 to 8, wherein the hybrid drive system has a single-motor electric-only mode, a dual-motor electric-only first-gear mode, a dual-motor electric-only second-gear mode, a parallel hybrid first-gear mode, a parallel hybrid second-gear mode, a series range-extending mode, an engine direct-drive first-gear mode, and an engine direct-drive second-gear mode.
10. A vehicle characterized by comprising the hybrid drive system of any one of claims 1 to 9.
CN201910718740.1A 2019-08-05 2019-08-05 Hybrid power driving system and vehicle Pending CN112319208A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114508575A (en) * 2022-02-23 2022-05-17 浙江吉利控股集团有限公司 Planet wheel type differential mechanism, automobile power system and automobile

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114508575A (en) * 2022-02-23 2022-05-17 浙江吉利控股集团有限公司 Planet wheel type differential mechanism, automobile power system and automobile

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