CN114194019A - Hybrid transmission, hybrid power system and vehicle - Google Patents

Hybrid transmission, hybrid power system and vehicle Download PDF

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Publication number
CN114194019A
CN114194019A CN202010910118.3A CN202010910118A CN114194019A CN 114194019 A CN114194019 A CN 114194019A CN 202010910118 A CN202010910118 A CN 202010910118A CN 114194019 A CN114194019 A CN 114194019A
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CN
China
Prior art keywords
gear
shaft
clutch
output shaft
hybrid
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Pending
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CN202010910118.3A
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Chinese (zh)
Inventor
柴少彪
赵晓峰
汤会芳
张剑
吴晓措
王慧
王人杰
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SAIC Motor Corp Ltd
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SAIC Motor Corp Ltd
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Priority to CN202010910118.3A priority Critical patent/CN114194019A/en
Publication of CN114194019A publication Critical patent/CN114194019A/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
    • B60K6/24—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

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

Abstract

The invention provides a hybrid power gearbox, which comprises an input shaft, an intermediate shaft and an output shaft, wherein the input shaft is fixedly connected with an engine, the input shaft is meshed with the intermediate shaft through a plurality of groups of first gear pairs, each group of first gear pairs has a preset transmission ratio, the input shaft can drive the intermediate shaft through any one first gear pair, and the intermediate shaft is in transmission connection with the output shaft through a second gear pair; the planetary gear set comprises a sun gear, a planet gear and a clutch, the sun gear and the planet gear are meshed with each other, the planet carrier is fixedly connected with the planet gear, the motor is fixedly connected with the sun gear, the sun gear and the planet carrier can be mounted on the output shaft in a relatively rotating mode, and the planet carrier or the sun gear can be relatively fixed through the clutch and the output shaft. The invention also provides a hybrid power transmission system. The invention also provides a vehicle. The hybrid power gearbox, the hybrid power transmission system and the vehicle have the advantages that the space structure of the gearbox is compact, the size and the weight are reduced, and the arrangement of the whole vehicle is flexible.

Description

Hybrid transmission, hybrid power system and vehicle
Technical Field
The invention relates to the technical field of hybrid power transmission systems, in particular to a hybrid power transmission, a hybrid power transmission system and a vehicle.
Background
Due to environmental protection and overall fuel economy concerns, more and more vehicles are beginning to employ hybrid powertrain systems.
The hybrid power gearbox in the prior art comprises a motor and six transmission shafts arranged in parallel, so that on one hand, the whole system is very numerous and complex, and the transmission efficiency and reliability are low; on the other hand, the space structure is large, especially the transverse space size is large, so that the volume of the whole gearbox is large, and the specific power of the whole structure is small.
Therefore, how to provide a solution to solve the above drawbacks remains a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a hybrid power transmission which is simple in structure, strong in reliability, small in transverse size and flexible in whole vehicle arrangement. Another object of the present invention is to provide a hybrid power transmission system with simple structure and high reliability. Another object of the present invention is to provide a vehicle having a simple and reliable transmission system.
In order to solve the technical problem, the invention provides a hybrid transmission, which comprises an input shaft, an intermediate shaft and an output shaft, wherein the input shaft is fixedly connected with an engine, the input shaft and the intermediate shaft are meshed through a plurality of groups of first gear pairs, each group of first gear pairs has a preset transmission ratio, the input shaft can drive the intermediate shaft through any one of the first gear pairs, and the intermediate shaft and the output shaft are in transmission connection through a second gear pair;
still include motor, planetary gear set and clutch, planetary gear set include intermeshing's sun gear and planet wheel, and with planet carrier of planet wheel fixed connection, the motor with sun gear fixed connection, just sun gear and planet carrier all can install with relatively rotating in the output shaft, the planet carrier or the sun gear can pass through the clutch with the output shaft is relatively fixed.
The hybrid power gearbox is provided with an input shaft, a middle shaft and an output shaft, wherein an engine is connected with the input shaft, a motor and a planetary gear set are arranged on the output shaft, and the engine is driven independently, the motor is driven independently or the engine and the motor are driven in a hybrid mode through the combination and the disconnection of a clutch. According to the hybrid power gearbox, power transmission is realized only through the three transmission shafts and the planetary gear set, and compared with the hybrid power gearbox in the prior art, on one hand, the number of the transmission shafts is reduced, and the transmission efficiency and the reliability are greatly improved; on the other hand, the space structure of the gearbox is greatly reduced, the size and the weight of the gearbox are reduced, and the structural specific power of the gearbox is improved.
Optionally, the clutch includes a first clutch and a second clutch, the planet carrier is relatively fixed to the output shaft through the first clutch, and the sun gear is relatively fixed to the output shaft through the second clutch.
Alternatively, a plurality of driving gears are axially fixed on the input shaft, a plurality of driven gears are relatively rotatably arranged on the intermediate shaft at corresponding positions, the driving gears and the driven gears at corresponding positions are meshed to form the first gear pair, and a synchronizer is arranged between two adjacent driven gears at intervals, can move along the axial direction of the intermediate shaft and is combined with the driven gears on any side to enable the driven gears and the intermediate shaft to synchronously rotate.
Optionally, a housing for housing the input shaft, the intermediate shaft and the output shaft is also included.
Optionally, the planetary gear set further includes an inner gear ring fixed to the case, and the planet gears are simultaneously engaged with the sun gear and the inner gear ring.
Optionally, the input shaft is arranged coaxially with the output shaft.
The invention also provides a hybrid power transmission system which comprises an engine, the hybrid power gearbox, a transmission shaft, a main speed reducer, a differential and a half shaft, wherein the engine, the hybrid power gearbox, the transmission shaft, the main speed reducer, the differential and the half shaft are sequentially connected, and the half shaft is connected with wheels.
The hybrid power transmission system comprises the hybrid power gearbox, an input shaft, a middle shaft and an output shaft are arranged, an engine is connected with the input shaft, a motor and a planetary gear set are arranged on the output shaft, and the engine is driven independently, the motor is driven independently or the engine and the motor are driven by hybrid power through the combination and the disconnection of a first clutch and a second clutch. According to the hybrid power transmission system, the hybrid power transmission box realizes power transmission only through the three transmission shafts and the planetary gear set, and compared with the hybrid power transmission box in the prior art, on one hand, the number of the transmission shafts is reduced, and the transmission efficiency and reliability are greatly improved, on the other hand, the space structure of the transmission box is greatly reduced, the size and the weight of the transmission box are reduced, and the structure specific power of the transmission box is improved.
The invention also provides a vehicle comprising the hybrid power transmission system.
The vehicle comprises the hybrid power transmission system, wherein the hybrid power gearbox of the hybrid power transmission system is provided with an input shaft, a middle shaft and an output shaft, the engine is connected with the input shaft, the motor and the planetary gear set are arranged on the output shaft, and the engine is independently driven, the motor is independently driven or the engine and the motor are driven by hybrid power through the combination and disconnection of the clutch. Compared with the hybrid power gearbox in the prior art, the hybrid power gearbox in the hybrid power transmission system of the vehicle realizes power transmission by only three transmission shafts and the planetary gear set, so that the number of the transmission shafts is reduced, the transmission efficiency and the reliability are greatly improved, the space structure of the gearbox is greatly reduced, the volume and the weight of the gearbox are reduced, and the structural specific power of the gearbox is improved.
Drawings
FIG. 1 is a schematic structural diagram of a hybrid transmission according to the present invention;
wherein, in fig. 1, the reference numbers are:
1-an input shaft; 2-intermediate shaft; 3-an output shaft; 4-a motor; 5-a planetary gear set; 51-sun gear; 52-planet wheel; 53-planet carrier; 54-ring gear; 61-a second clutch; 62-a first clutch; 71-a first drive gear; 72-a second drive gear; 73-a third drive gear; 74-a fourth drive gear; 75-a fifth drive gear; 76-sixth drive gear; 71' -a first driven gear; 72' -a second driven gear; 73' -a third driven gear; 74' -a fourth driven gear; 75' -fifth driven gear; 76' -a sixth driven gear; 8-a second gear pair; 91-a first synchronizer; 92-a second synchronizer; 93-third synchronizer.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
Herein, the axial direction along each propeller shaft is "longitudinal", and the direction perpendicular to the axial direction of the propeller shaft is "transverse".
Referring to fig. 1, fig. 1 is a schematic structural diagram of a hybrid transmission according to the present invention.
The invention provides a hybrid power gearbox, which comprises an input shaft 1, an intermediate shaft 2 and an output shaft 3, wherein the input shaft 1 is connected with an engine, the input shaft 1 and the intermediate shaft 2 are meshed through a plurality of groups of first gear pairs, each group of first gear pairs has a preset transmission ratio, the input shaft 1 can drive the intermediate shaft 2 through any one group of first gear pairs, and the intermediate shaft 2 and the output shaft 3 are in transmission connection through a second gear pair 8; the planetary gear set 5 comprises a sun gear 51 fixedly connected with the motor 4, a planetary gear 52 meshed with the sun gear 51 and a planet carrier 53 fixedly connected with the planetary gear 52, the sun gear 51 and the planet carrier 53 can be relatively rotatably arranged on the output shaft 3, and the planet carrier 53 or the sun gear 51 can be relatively fixed with the output shaft 3 through the clutch.
The hybrid power gearbox is provided with an input shaft 1, an intermediate shaft 2 and an output shaft 3, wherein an engine is connected with the input shaft 1, a motor 4 and a planetary gear set 5 are both arranged on the output shaft 3, and the engine is driven independently, the motor 4 is driven independently or the engine and the motor 4 are driven in a hybrid mode through the combination and disconnection of a clutch. According to the hybrid power gearbox, power transmission is realized only through the three transmission shafts and the planetary gear set 5, and compared with the hybrid power gearbox in the prior art, on one hand, the number of the transmission shafts is reduced, and the transmission efficiency and the reliability are greatly improved; on the other hand, the space structure of the gearbox is greatly reduced, the size and the weight of the gearbox are reduced, and the structural specific power of the gearbox is improved.
The hybrid transmission can realize the running modes that the engine drives the vehicle to run independently, the engine charges the motor 4 when idling, the motor 4 drives the vehicle to run independently, the motor 4 drives the vehicle to run and starts the engine simultaneously, and the engine and the motor 4 drive the vehicle to run simultaneously. Several modes of operation will be described in detail below.
When the vehicle is required to be driven by the engine alone, the clutch is disconnected, power transmission is not performed between the motor 4 and the output shaft 3, the engine sequentially transmits power to the wheels through the input shaft 1, the intermediate shaft 2 and the output shaft 3 to realize driving of the wheels, and different first gear pairs between the input shaft 1 and the intermediate shaft 2 are selected to perform transmission, so that the speed change of the wheels is realized.
Meanwhile, when the engine is idling, the clutch can be closed, so that the output shaft 3 and the sun gear 51 are relatively fixed, the power of the engine is transmitted to the output shaft 3 through the input shaft 1, the selected first gear pair and the intermediate shaft 2, at this time, as the clutch is closed, the output shaft 3 and the sun gear 51 are relatively fixed, the kinetic energy from the engine is transmitted to the motor 4 through the output shaft 3 and the sun gear 51, and the energy is stored in the battery through the energy conversion of the motor 4, so that the idling charging of the engine is realized.
When the vehicle needs to be driven by the motor 4 alone, no power transmission is performed between the input shaft 1 and the intermediate shaft 2, the power of the motor 4 is transmitted to the wheels through the on-off of the clutch, specifically, when the clutch is closed, so that the planet carrier 53 and the output shaft 3 are relatively fixed, the motor 4 transmits the power to the wheels through the sun gear 51, the planet gear 52, the planet carrier 53, the clutch and the output shaft 3, and the first-gear driving of the motor 4 is realized; when the clutch is closed so that the sun gear 51 and the output shaft 3 are relatively fixed, the motor 4 transmits power to the wheels through the sun gear 51-clutch-output shaft 3, and secondary driving of the motor 4 is achieved.
When the motor 4 drives the vehicle independently, power transmission is performed between the input shaft 1 and the intermediate shaft 2 through any first gear pair, the power of the motor 4 is transmitted to the input shaft 1 through the output shaft 3, the intermediate shaft 2 and any first gear pair, and finally the engine is started. In practical application, which set of first gear pair is specifically used to start the engine may be selected according to the characteristics of the engine and the external characteristics of the motor 4.
When the vehicle is driven by the engine and the motor 4 at the same time, namely the input shaft 1 and the intermediate shaft 2 carry out power transmission through any one first gear pair, the driving of the engine to wheels is realized; at the same time, the clutch is closed, so that the sun gear 51 or the planet carrier 53 and the output shaft 3 are relatively fixed, and the driving of the wheels by the engine and the motor 4 is realized.
The selection of different operation modes can select different driving states according to the electric quantity of the vehicle and the operation condition of the vehicle, thereby realizing the optimal power performance and economy of the whole vehicle.
Further, in the present invention, the clutch includes the first clutch 62 and the second clutch 61, the carrier 53 is relatively fixed to the output shaft 3 via the first clutch 62, and the sun gear 51 is relatively fixed to the output shaft 3 via the second clutch 61.
Two clutches are arranged, so that two-gear driving of the motor 4 is realized, and on one hand, the gear shifting time is short; on the other hand, when one clutch is disconnected, the other clutch can be simultaneously combined, so that the gear shifting comfort and the whole vehicle riding comfort are improved.
Referring to fig. 1, in the present invention, a plurality of driving gears are fixed to an input shaft 1 along an axial direction, a plurality of driven gears are relatively rotatably disposed on an intermediate shaft 2 at corresponding positions, the driving gears and the driven gears at corresponding positions are engaged to form the first gear pair, and a synchronizer is disposed between two adjacent driven gears of the intermediate shaft 2 at an interval, and can move along the axial direction of the intermediate shaft 2 and is combined with the driven gears at any side to rotate the driven gears and the intermediate shaft 2 synchronously.
Specifically, in the present embodiment, the input shaft 1 is provided with a first driving gear 71, a second driving gear 72, a third driving gear 73, a fourth driving gear 74, a fifth driving gear 75 and a sixth driving gear 76, the intermediate shaft 2 is provided with a first driven gear 71', a second driven gear 72', a third driven gear 73', a fourth driven gear 74', a fifth driven gear 75 'and a sixth driven gear 76' at corresponding positions in a relatively rotatable manner, the first driving gear 71 and the first driven gear 71 'are engaged to form a first gear pair, the second driving gear 72 and the second driven gear 72' are engaged to form a second gear pair, the third driving gear 73 and the third driven gear 73 'are engaged to form a third gear pair, the fourth driving gear 74' and the fourth driven gear 74 'are engaged to form a fourth gear pair, the fifth driving gear 75 and the fifth driven gear 75' are engaged to form a fifth gear pair, the sixth driving gear 76 and the sixth driven gear 76' are meshed to form a six-gear pair; the counter shaft 2 is provided with a first synchronizer 91 between the first driven gear 71 'and the second driven gear 72', the first synchronizer 91 being capable of moving in the axial direction of the counter shaft 2 and engaging with the first driven gear 71 'or the second driven gear 72' to rotate the first driven gear 71 'and the counter shaft 2 synchronously or to rotate the second driven gear 72' and the counter shaft 2 synchronously; a second synchronizer 92 is further provided between the third driven gear 73 'and the fourth driven gear 74', and the second synchronizer 92 is capable of moving in the axial direction of the intermediate shaft 2 and is combined with the third driven gear 73 'or the fourth driven gear 74' to synchronously rotate the third driven gear 73 'and the intermediate shaft 2 or synchronously rotate the fourth driven gear 74' and the intermediate shaft 2; similarly, a third synchronizer 93 is further provided between the fifth driven gear 75 'and the sixth driven gear 76', and the third synchronizer 93 is capable of moving in the axial direction of the counter shaft 2 and is combined with the fifth driven gear 75 'or the sixth driven gear 76' to rotate the fifth driven gear 75 'and the counter shaft 2 synchronously or to rotate the sixth driven gear 76' and the counter shaft 2 synchronously.
When the wheels are driven by the engine, any one of the first synchronizer 91, the second synchronizer 92 and the third synchronizer 93 is coupled to the driven gear corresponding to one of the two sides, so that the power transmission between the input shaft 1 and the intermediate shaft 2 is realized, and the other two synchronizers are in an intermediate state and are not coupled to the driven gear on either side. The variable speed driving of the engine can be realized through the combination of different synchronizers and corresponding driven gears.
Of course, in practical applications, the number of the first gear pairs arranged between the input shaft 1 and the intermediate shaft 2 is not limited, and those skilled in the art can set the first gear pairs according to the actual use requirements of the vehicle.
Further, the hybrid transmission of the present invention further includes a case for accommodating the input shaft 1, the intermediate shaft 2, and the output shaft 3.
With continued reference to fig. 1, in the present invention, the planetary gear set 5 further includes an inner gear ring 54 fixed to the housing, and the planetary gear 52 is engaged with the inner gear ring 54 while rotating around the sun gear 51. This arrangement makes the transmission of the planetary gear set 5 more stable and improves the transmission reliability of the planetary gear set 5 and the hybrid transmission of the present invention.
Further, in the present invention, the input shaft 1 and the output shaft 3 are coaxially disposed. The arrangement further reduces the transverse size of the transmission, so that the hybrid power transmission box is more flexibly arranged on the whole vehicle and is more favorable for the power transmission of the vehicle which is longitudinally arranged.
The invention also provides a hybrid power transmission system which comprises an engine, the hybrid power gearbox, a transmission shaft, a main speed reducer, a differential and a half shaft, wherein the engine, the hybrid power gearbox, the transmission shaft, the main speed reducer, the differential and the half shaft are sequentially connected, and the half shaft is connected with wheels so as to realize the transmission of the wheels by the engine.
The hybrid power transmission system of the present invention includes the aforementioned hybrid transmission case, and therefore has the same technical effects as the aforementioned hybrid transmission case, and will not be described herein again.
The invention also provides a vehicle comprising the hybrid power transmission system.
The vehicle of the invention comprises the hybrid power transmission system, so the technical effects of the vehicle are the same as those of the hybrid power transmission system, and the detailed description is omitted.
Having described the invention in detail with respect to a hybrid transmission, hybrid powertrain and vehicle, specific examples are set forth herein for illustrating the principles and implementations of the present invention, the descriptions of the embodiments being provided solely to facilitate an understanding of the methods and their core concepts of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims (8)

1. A hybrid transmission, characterized by: the transmission device comprises an input shaft (1), an intermediate shaft (2) and an output shaft (3), wherein the input shaft (1) is fixedly connected with an engine, the input shaft (1) and the intermediate shaft (2) are meshed through a plurality of groups of first gear pairs, each group of first gear pairs has a preset transmission ratio, the input shaft (1) can drive the intermediate shaft (2) through any one first gear pair, and the intermediate shaft (2) and the output shaft (3) are in transmission connection through a second gear pair (8);
still include motor (4), planetary gear set (5) and clutch, planetary gear set (5) include intermeshing sun gear (51) and planet wheel (52), and with planet carrier (53) of planet wheel (52) fixed connection, motor (4) with sun gear (51) fixed connection, sun gear (51) and planet carrier (53) all can install with relatively rotating in output shaft (3), planet carrier (53) or sun gear (51) can pass through the clutch with output shaft (3) relatively fixed.
2. The hybrid transmission of claim 1, wherein: the clutch comprises a first clutch (62) and a second clutch (61), the planet carrier (53) is relatively fixed with the output shaft (3) through the first clutch (62), and the sun gear (51) is relatively fixed with the output shaft (3) through the second clutch (61).
3. The hybrid transmission of claim 1, wherein: the input shaft (1) is axially fixed with a plurality of driving gears, the intermediate shaft (2) is provided with a plurality of driven gears in corresponding positions in a relatively rotatable manner, the driving gears in corresponding positions are meshed with the driven gears to form the first gear pair, the intermediate shaft (2) is further provided with synchronizers at intervals between two adjacent driven gears, and the synchronizers can move along the axial direction of the intermediate shaft (2) and are combined with the driven gears on any side to enable the driven gears and the intermediate shaft (2) to rotate synchronously.
4. The hybrid transmission of claim 1, wherein: also comprises a box body used for accommodating the input shaft (1), the intermediate shaft (2) and the output shaft (3).
5. The hybrid transmission of claim 4, wherein: the planetary gear set (5) further comprises an inner gear ring (54) fixed to the box body, and the planet gears (52) are meshed with the sun gear (51) and the inner gear ring (54) simultaneously.
6. The hybrid transmission according to any one of claims 1 to 5, characterized in that: the input shaft (1) and the output shaft (3) are coaxially arranged.
7. A hybrid powertrain characterized by: comprising an engine, a hybrid gearbox according to any of claims 1 to 6, a propeller shaft, a final drive, a differential and half-shafts connected in series, said half-shafts being connected to the wheels.
8. A vehicle, characterized in that: comprising the hybrid powertrain system of claim 7.
CN202010910118.3A 2020-09-02 2020-09-02 Hybrid transmission, hybrid power system and vehicle Pending CN114194019A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070259748A1 (en) * 2006-05-05 2007-11-08 Magna Powertrain Usa, Inc. Dual Clutch Hybrid Powershift Transmission
JP2008174118A (en) * 2007-01-19 2008-07-31 Nissan Diesel Motor Co Ltd Power train for hybrid vehicle
CN102089173A (en) * 2008-06-11 2011-06-08 格特拉格传动机构和齿轮工厂赫尔曼·哈根迈尔有限公司&两合公司 Drive train for a motor vehicle
EP2177386A1 (en) * 2008-10-15 2010-04-21 Magneti Marelli Powertrain S.p.A. Motor-drive transmission equipped with an electric motor
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Application publication date: 20220318