CN114801694A - Power assembly of hybrid electric vehicle and vehicle - Google Patents

Power assembly of hybrid electric vehicle and vehicle Download PDF

Info

Publication number
CN114801694A
CN114801694A CN202210612611.6A CN202210612611A CN114801694A CN 114801694 A CN114801694 A CN 114801694A CN 202210612611 A CN202210612611 A CN 202210612611A CN 114801694 A CN114801694 A CN 114801694A
Authority
CN
China
Prior art keywords
row
clutch
speed change
change mechanism
vehicle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210612611.6A
Other languages
Chinese (zh)
Inventor
苑衍灵
刘彦军
宋廷彬
谭圣杰
黄友宾
魏立梅
李同同
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shengrui Transmission Co Ltd
Original Assignee
Shengrui Transmission Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shengrui Transmission Co Ltd filed Critical Shengrui Transmission Co Ltd
Priority to CN202210612611.6A priority Critical patent/CN114801694A/en
Publication of CN114801694A publication Critical patent/CN114801694A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—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
    • B60K6/383—One-way clutches or freewheel devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54—Transmission for changing ratio
    • B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

The present disclosure relates to the field of hybrid vehicles, and more particularly, to a powertrain and a vehicle for a hybrid vehicle. The power assembly of the hybrid electric vehicle includes: a power output mechanism and a speed change mechanism; the speed change mechanism comprises a speed change mechanism input shaft, an output shaft, a third planet row, a fourth planet row, a C1 clutch, a C2 clutch and a B1 brake; the input shaft of the speed change mechanism is connected with the planet carrier of the third planet row, and the sun gear of the third planet row is connected with the sun gear of the fourth planet row. The power assembly of the hybrid electric vehicle can enable the speed change mechanism to form an independent three-gear speed changer through the arrangement of the third planetary gear row, the fourth planetary gear row, the C1 clutch, the C2 clutch and the B1 brake, so that the vehicle can select proper torque and rotating speed to output according to actual conditions, and the vehicle escaping performance, the accelerating performance, the climbing performance and the high-speed performance are obviously improved.

Description

Power assembly of hybrid electric vehicle and vehicle
Technical Field
The present disclosure relates to the field of hybrid vehicles, and more particularly, to a powertrain and a vehicle for a hybrid vehicle.
Background
Driven by energy and environmental pressures and technical limitations, hybrid vehicles are becoming increasingly popular with consumers and manufacturers. The hybrid electric vehicle has the advantages of both the traditional vehicle and the pure electric vehicle as a transition scheme for developing the pure electric vehicle, and is a new energy vehicle with practical value at present.
The use scene of the existing hybrid electric vehicle is more and more complicated, and the vehicle needs to output power with high torque when climbing a slope and starting and also needs to output power with high rotating speed; the existing speed change mechanism mounted on the hybrid electric vehicle is very simple in structure, and the capability of adjusting the transmission ratio cannot support the vehicle to cope with complex use scenes.
Disclosure of Invention
In order to solve the technical problem, the present disclosure provides a powertrain of a hybrid vehicle and a vehicle.
In a first aspect, the present disclosure provides a powertrain of a hybrid vehicle, comprising: a power output mechanism and a speed change mechanism;
the speed change mechanism comprises a speed change mechanism input shaft, an output shaft, a third planet row, a fourth planet row, a C1 clutch, a C2 clutch and a B1 brake;
the speed change mechanism input shaft is connected with a planet carrier of the third planet row, a sun gear of the third planet row is connected with a sun gear of the fourth planet row, a ring gear of the third planet row is respectively connected with the sun gear of the third planet row and the sun gear of the fourth planet row through the C1 clutch, the ring gear of the third planet row is connected with the planet carrier of the fourth planet row through the C2 clutch, the ring gear of the fourth planet row is connected with a transmission shell through the B1 brake, and the planet carrier of the fourth planet row is connected with the output shaft;
the power output mechanism comprises a power assembly and a power output mechanism output shaft, the power output mechanism output shaft is connected with the speed change mechanism input shaft, and the power assembly is used for providing driving force.
Optionally, the bonded steel plates in the B1 brake are disposed on the transmission housing, and the friction plates in the B1 brake are disposed on the ring gear of the fourth planet row.
Optionally, the power assembly includes an engine, a first motor, a second motor and a first planetary gear set;
a transmission shaft of the engine is connected with a planet carrier of the first planetary row, a transmission shaft of the first motor is connected with a sun gear of the first planetary row, and a gear ring of the first planetary row is connected with an input shaft of the speed change mechanism;
and the transmission shaft of the second motor is connected with the input shaft of the speed change mechanism.
Optionally, the power assembly comprises an engine, a first electric machine, a second electric machine, a first planet carrier and a C0 clutch;
a transmission shaft of the engine is connected with a planet carrier of the first planetary row, the transmission shaft of the engine is connected with the input shaft of the speed change mechanism through the C0 clutch, a transmission shaft of the first motor is connected with a sun gear of the first planetary row, and a gear ring of the first planetary row is connected with the transmission shell;
and the transmission shaft of the second motor is connected with the input shaft of the speed change mechanism.
Optionally, the hybrid power system further comprises a second planet row, and a sun gear of the second planet row is connected with a transmission shaft of the second motor; one of the carrier and the ring gear of the second planetary row is connected to the variator input shaft, and the other is connected to the transmission housing.
Optionally, the transmission housing includes a first chamber and a second chamber, the first planetary row and the second planetary row are disposed in the first chamber, and the speed change mechanism is disposed in the second chamber.
Optionally, the third planetary row and the fourth planetary row are disposed in the second chamber in a close-fitting manner.
Optionally, a one-way clutch is arranged between a transmission shaft of the engine and the planet carrier of the first planet row.
Optionally, the C1 clutch and the C2 clutch are conjoined components on both ends of a synchronizer structure.
In a second aspect, the present disclosure provides a vehicle including the powertrain of the hybrid vehicle as described above.
Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:
according to the power assembly of the hybrid electric vehicle, the third planetary gear, the fourth planetary gear, the C1 clutch, the C2 clutch and the B1 brake are arranged, so that the speed change mechanism can form an independent three-gear transmission, the vehicle can select proper torque and rotating speed to output according to actual conditions, the vehicle escaping performance, the accelerating performance, the climbing performance, the high-speed performance and the like are obviously improved, meanwhile, the output power of the power output mechanism is always in the range of economic power through the arrangement of the speed change mechanism, and the economy of the vehicle is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a powertrain of a hybrid electric vehicle according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of another powertrain of a hybrid electric vehicle according to an embodiment of the disclosure.
11, an engine; 12. a first motor; 13. a second motor; 21. a first planet row; 22. a second planet row; 23. a third planet row; 24. a fourth planet row; 31. a C1 clutch; 32. a C2 clutch; 33. a B1 brake; 34. a C0 clutch; 4. a transmission housing; 5. a one-way clutch; 61. a first chamber; 62. a second chamber.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.
Driven by energy and environmental pressures and technical limitations, hybrid vehicles are becoming increasingly popular with consumers and manufacturers. The hybrid electric vehicle has the advantages of both the traditional vehicle and the pure electric vehicle as a transition scheme for developing the pure electric vehicle, and is a new energy vehicle with practical value at present.
The use scene of the existing hybrid electric vehicle is more and more complicated, and the vehicle needs to output power with high torque when climbing a slope and starting and also needs to output power with high rotating speed; the existing speed change mechanism mounted on the hybrid electric vehicle is very simple in structure, and the capability of adjusting the transmission ratio cannot support the vehicle to cope with complex use scenes.
Based on this, the present embodiment provides a powertrain of a hybrid vehicle and a vehicle, which can enable the transmission mechanism to form an independent three-gear transmission through the arrangement of the third planetary gear set, the fourth planetary gear set, the C1 clutch, the C2 clutch and the B1 brake, so that the vehicle can select an appropriate torque and rotation speed to output according to actual conditions, thereby significantly improving the vehicle escaping performance, accelerating performance, climbing performance, high-speed performance and the like, and simultaneously, through the arrangement of the transmission mechanism, the output power of the power output mechanism is always within the range of economic power, thereby improving the economic efficiency of the vehicle. This is illustrated in detail by the following specific examples:
referring to fig. 1 and 2, a powertrain of a hybrid vehicle according to the present embodiment includes: a power output mechanism and a speed change mechanism; the speed change mechanism comprises a speed change mechanism input shaft, an output shaft, a third planet row 23, a fourth planet row 24, a C1 clutch 31, a C2 clutch 32 and a B1 brake 33; the input shaft of the speed change mechanism is connected with a planet carrier of a third planet row 23, a sun gear of the third planet row 23 is connected with a sun gear of a fourth planet row 24, a ring gear of the third planet row 23 is respectively connected with the sun gear of the third planet row 23 and the sun gear of the fourth planet row 24 through a C1 clutch 31, the ring gear of the third planet row 23 is connected with the planet carrier of the fourth planet row 24 through a C2 clutch 32, the ring gear of the fourth planet row 24 is connected with a speed changer shell 4 through a B1 brake 33, and the planet carrier of the fourth planet row 24 is connected with an output shaft; the power output mechanism comprises a power assembly and a power output mechanism output shaft, the power output mechanism output shaft is connected with the speed change mechanism input shaft, and the power assembly is used for providing driving force.
The third planetary gear train 23, the fourth planetary gear train 24, the C1 clutch 31, the C2 clutch and the B1 brake 33 are arranged, so that the speed change mechanism can form an independent three-gear transmission, the vehicle can select proper torque and rotating speed to output according to actual conditions, the vehicle escaping performance, the accelerating performance, the climbing performance, the high-speed performance and the like are obviously improved, and the output power of the power output mechanism is always in the economic power range through the arrangement of the speed change mechanism, so that the economic efficiency of the vehicle is improved.
With continued reference to fig. 1, the power assembly includes an engine 11, a first electric machine 12, a second electric machine 13, and a first planetary gear set 21; a transmission shaft of the engine 11 is connected with a planet carrier of the first planet row 21, a transmission shaft of the first motor 12 is connected with a sun gear of the first planet row 21, and a gear ring of the first planet row 21 is connected with an input shaft of the speed change mechanism; the transmission shaft of the second motor 13 is connected with the input shaft of the speed change mechanism; by the arrangement, when the power output mechanism works, the first motor 12 can complete the speed regulation work of the engine 11, so that the engine 11 can be always kept in an economic rotating speed range during working, and the economy of a vehicle is improved.
With continued reference to fig. 2, the power assembly includes the engine 11, the first electric machine 12, the second electric machine 13, the first planetary gear set 21, and the C0 clutch 34; a transmission shaft of the engine 11 is connected with a planet carrier of the first planetary row 21, the transmission shaft of the engine 11 is connected with an input shaft of the speed change mechanism through a C0 clutch 34, a transmission shaft of the first motor 12 is connected with a sun gear of the first planetary row 21, and a gear ring of the first planetary row 21 is connected with the transmission housing 4; the transmission shaft of the second motor 13 is connected with the input shaft of the speed change mechanism; through the arrangement of the C0 clutch 34, when the second motor 13 works alone, the power transmission paths of the engine 11 and the first motor 12 can be disconnected, so that the control difficulty of the engine 11 and the first motor 12 is reduced, the reverse rotation of the vehicle driven by the second motor 13 is easier to realize, and the cost of the whole set of power assembly is obviously reduced.
The power assembly can be driven by a pure electric drive mode in which the second motor 13 provides power, a fuel oil drive mode in which the engine 11 provides power, and a hybrid drive mode in which the engine 11 and the second motor 13 provide power;
when the vehicle is in a starting, accelerating or climbing working condition and the electric quantity of the battery 6 is high, the second motor 13 can be used for providing power, meanwhile, when the vehicle is in a low-load state or a constant-speed running working condition, the vehicle is in a low-load state, the second motor 13 can be used for providing power, the battery 6 supplies power to the second motor 13, the first motor 12 and the engine 11 stop working, the peak torque of the driving mode is large, the second motor 13 responds quickly, and the vehicle starts more quickly;
when the vehicle is under the working conditions of starting, accelerating, climbing, medium-low speed running or constant-speed running and the battery 6 is low in electric quantity, the engine 11 and the second motor 13 can be used for simultaneously providing power, when the vehicle is under the working conditions of accelerating, climbing or high-speed cruising, the vehicle is in a low-load state, a driving mode that the engine 11 and the second motor 13 simultaneously provide power can be used, and the engine 11 can also adjust the rotating speed through the first motor 12 while providing power, so that the battery 6 can be charged, and the rotating speed of the engine 11 can be kept in an economic interval;
when the vehicle is under the working condition of starting, accelerating or climbing, the vehicle is in a large throttle state at the moment, the engine 11 and the second motor 13 can be used for outputting power simultaneously, the first motor 12 and the battery 6 simultaneously supply power to the second motor 13 at the moment so as to ensure that the second motor 13 can output higher power, and the first motor 12 also performs the action of adjusting the rotating speed of the engine 11 while supplying power to the second motor 13 so as to ensure that the rotating speed of the engine 11 is kept in an economic range.
When the shift mechanism is in the first forward gear, brake 33 is closed B1; the first forward gear in the pure electric driving state can provide a very large peak torque for the vehicle, the response is fast, and the starting is also fast; the first forward gear in the fuel drive state can keep the rotation speed of the engine 11 in the economic range all the time by the speed regulation of the first motor 12.
When the shift mechanism is in the second forward gear, the C2 clutch 32 is closed; the second forward gear in the pure electric driving state can provide a transition gear between high torque and high rotating speed output for the vehicle, so that the economy of the whole vehicle is further improved.
When the shift mechanism is in the third forward gear, the C1 clutch 31 is closed; in this shift position, the vehicle can be more smoothly maintained in the high vehicle speed running state.
When the shift mechanism is in reverse, the B1 brake 33 is closed; the transmission mechanism in the reverse gear state can be driven only by a pure electric drive system.
That is to say, the speed change mechanism has three gears, and when the speed change mechanism is in a certain gear, only one clutch or brake is closed, and two clutches or brakes are in an open state, the control mode is very simple, and the research and development cost of the whole power assembly can be obviously reduced.
In some embodiments, the bonded steel plates in the B1 brake 33 are provided on the transmission housing 4, and the friction plates in the B1 brake 33 are provided on the ring gear of the fourth planet row 24; it should be noted that, because the material of the planet row structure is generally steel, and the material of the transmission housing 4 is generally aluminum alloy, the friction plate is arranged on the steel structure, and the combination steel sheet is arranged on the aluminum alloy structure, so that deformation of the transmission housing 4 can be prevented when the brake performs braking action, and the mass of the friction plate is lighter than that of the combination steel sheet, so that the moment of inertia of the fourth planet row 24 during rotation is smaller, and the operation of the whole speed change mechanism is more stable and reliable.
With continued reference to fig. 1, the transmission housing 4 includes a first chamber 61 and a second chamber 62, the first planetary row 21 and the second planetary row 22 are disposed within the first chamber 61, and the variator is disposed within the second chamber 62; by the arrangement, the situation that the internal structure of the second chamber 62 is too compact to affect the establishment of oil pressure of a clutch and/or a brake in the speed change mechanism can be prevented, the modular production of the structure of the whole power assembly can be more convenient, the structure in the first chamber 61 or the structure in the second chamber 62 can be upgraded or replaced independently, and the universality of the power assembly is remarkably improved; it should be noted that the first planetary row 21 and the second planetary row 22 can be disposed in close contact in the first chamber 61, and this arrangement can reduce the volume of the structure for connecting the first planetary row 21 and the second planetary row 22, thereby making the structure of the speed change mechanism more compact and reducing the production cost.
With continued reference to fig. 1, the third planetary row 23 and the fourth planetary row 24 are disposed snugly within the second chamber 62; this arrangement can reduce the volume of the structure for connecting the third planetary row 23 and the fourth planetary row 24, thereby making the structure of the transmission mechanism more compact and reducing the production cost.
In some embodiments, the powertrain of the hybrid vehicle further includes a second planetary row 22, and a sun gear of the second planetary row 22 is connected with a transmission shaft of the second electric machine 13; one of the carrier and the ring gear of the second planetary row 22 is connected to the variator input shaft, and the other is connected to the transmission housing 4; through the setting of second planet row 22, can utilize the ring gear of second planet row 22 to be connected with derailleur housing 4 to the transmission shaft of second motor 13 is connected with the sun gear of second planet row 22, utilizes the mode of its planet carrier output, for second motor 13 provides the effect that the speed reduction increased the turn round at the during operation, thereby can choose for use the second motor 13 that the moment of torsion is littleer, thereby further reduce whole car cost, can also reduce the occupation space of this power assembly.
In a further embodiment, a one-way clutch 5 is provided between the drive shaft of the engine 11 and the planet carrier of the first planetary row 21; through the setting of one-way clutch 5, can prevent that engine 11 from taking place the reversal when second motor 13 is worked to prevent that engine 11 from taking place wearing and tearing because of idle running, can also reduce the noise level of whole car simultaneously.
In some embodiments, the C1 clutch 31 and the C2 clutch are conjoined components across a synchronizer structure; when the synchronizer is used as a gear shifting structure, a special hydraulic system is not required to be arranged in the transmission shell 4, the cost can be effectively reduced, the control mode is simpler, and the economical efficiency and the practicability of the power assembly are obviously improved.
In a second aspect, the present disclosure provides a vehicle including the powertrain of the hybrid vehicle as described above.
The specific implementation manner and the implementation principle are the same as those of the above embodiments, and can bring the same or similar technical effects, and detailed description is omitted here, and specific reference may be made to the description of the power assembly embodiment of the hybrid electric vehicle.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A powertrain for a hybrid vehicle, comprising: a power output mechanism and a speed change mechanism;
the speed change mechanism comprises a speed change mechanism input shaft, an output shaft, a third planet row (23), a fourth planet row (24), a C1 clutch (31), a C2 clutch (32) and a B1 brake (33);
the transmission input shaft is connected with the planet carrier of the third planetary row (23), the sun gear of the third planetary row (23) is connected with the sun gear of the fourth planetary row (24), the ring gear of the third planetary row (23) is respectively connected with the sun gear of the third planetary row (23) and the sun gear of the fourth planetary row (24) through the C1 clutch (31), the ring gear of the third planetary row (23) is connected with the planet carrier of the fourth planetary row (24) through the C2 clutch (32), the ring gear of the fourth planetary row (24) is connected with the transmission housing (4) through the B1 brake (33), and the planet carrier of the fourth planetary row (24) is connected with the output shaft;
the power output mechanism comprises a power assembly and a power output mechanism output shaft, the power output mechanism output shaft is connected with the speed change mechanism input shaft, and the power assembly is used for providing driving force.
2. The powertrain of a hybrid vehicle according to claim 1, characterized in that the bonded steel discs in the B1 brake (33) are provided on the transmission case (4) and the friction discs in the B1 brake (33) are provided on the ring gear of the fourth planetary row (24).
3. The powertrain of a hybrid vehicle according to claim 1, characterized in that the power components include an engine (11), a first electric machine (12), a second electric machine (13), and a first planetary gear set (21);
the transmission shaft of the engine (11) is connected with the planet carrier of the first planet row (21), the transmission shaft of the first motor (12) is connected with the sun gear of the first planet row (21), and the gear ring of the first planet row (21) is connected with the input shaft of the speed change mechanism;
and a transmission shaft of the second motor (13) is connected with the input shaft of the speed change mechanism.
4. The powertrain of a hybrid vehicle according to claim 1, wherein the power components include an engine (11), a first electric machine (12), a second electric machine (13), a first planetary gear set (21), and a C0 clutch (34);
the transmission shaft of the engine (11) is connected with the planet carrier of the first planet row (21), the transmission shaft of the engine (11) is connected with the speed change mechanism input shaft through the C0 clutch (34), the transmission shaft of the first motor (12) is connected with the sun gear of the first planet row (21), and the ring gear of the first planet row (21) is connected with the transmission shell (4);
and a transmission shaft of the second motor (13) is connected with the input shaft of the speed change mechanism.
5. Hybrid vehicle powertrain according to any of claims 3 or 4, characterized in that it further comprises a second planetary row (22), the sun gear of said second planetary row (22) being connected to the transmission shaft of said second electric machine (13); one of the carrier and the ring gear of the second planetary row (22) is connected to the transmission input shaft, and the other is connected to the transmission housing (4).
6. The powertrain of a hybrid vehicle according to claim 5, characterized in that the transmission housing (4) includes a first chamber (61) and a second chamber (62), the first planetary row (21) and the second planetary row (22) being disposed in the first chamber (61), and the speed change mechanism being disposed in the second chamber (62).
7. Hybrid vehicle powertrain according to claim 6, characterized in that the third planetary row (23) and the fourth planetary row (24) are arranged snugly in the second chamber (62).
8. Hybrid vehicle powertrain according to any of claims 3 or 4, characterised in that a one-way clutch (5) is provided between the drive shaft of the engine (11) and the planet carrier of the first planetary row (21).
9. The powertrain of a hybrid vehicle as set forth in claim 1, wherein the C1 clutch (31) and the C2 clutch (32) are coupled components at both ends of a synchronizer structure.
10. A vehicle comprising a powertrain as claimed in any one of claims 1 to 9.
CN202210612611.6A 2022-05-31 2022-05-31 Power assembly of hybrid electric vehicle and vehicle Pending CN114801694A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210612611.6A CN114801694A (en) 2022-05-31 2022-05-31 Power assembly of hybrid electric vehicle and vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210612611.6A CN114801694A (en) 2022-05-31 2022-05-31 Power assembly of hybrid electric vehicle and vehicle

Publications (1)

Publication Number Publication Date
CN114801694A true CN114801694A (en) 2022-07-29

Family

ID=82519332

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210612611.6A Pending CN114801694A (en) 2022-05-31 2022-05-31 Power assembly of hybrid electric vehicle and vehicle

Country Status (1)

Country Link
CN (1) CN114801694A (en)

Similar Documents

Publication Publication Date Title
US6344008B1 (en) Hybrid vehicle
US20170282702A1 (en) Hybrid transmission having fixed gear shift stage
US8727939B2 (en) Hybrid electric drive unit, hybrid drive system and control method thereof
EP1038722B1 (en) Hybrid driver
US6341541B1 (en) Power transmission system of an automobile
US8857188B2 (en) Hybrid drive device
WO2009113348A1 (en) Vehicular drive system
JP6227303B2 (en) Power transmission device for hybrid vehicle
KR20080087907A (en) Hybrid driving apparatus, and control method thereof
CN110667366A (en) Speed change transmission system special for hybrid electric vehicle
CN111251865B (en) Hybrid power driving system and vehicle
JP4411827B2 (en) Power transmission device for hybrid vehicle
CN110549847A (en) Driving transmission device for automobile power system
JPH11254982A (en) Drive device for automobile
EP2686585B1 (en) Drive system for a vehicle
CN212400884U (en) Hybrid power driving system and automobile
CN111016618A (en) Hybrid power driving system and hybrid power automobile
CN113022294A (en) Single-planet-row type hybrid electric vehicle power coupling mechanism and dynamic coordination control method thereof
CN111376700B (en) Hybrid power coupling system and vehicle
CN217532541U (en) Power assembly of hybrid electric vehicle and vehicle
CN114801694A (en) Power assembly of hybrid electric vehicle and vehicle
CN114683829A (en) Power assembly of hybrid electric vehicle and vehicle
JP2004009970A (en) Hybrid vehicle
CN212579597U (en) Transmission system of front-drive hybrid power vehicle
CN210390754U (en) Single-motor hybrid power driving device and vehicle with same

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination