CN116176257A - Hybrid power speed change system applied to commercial vehicle - Google Patents

Hybrid power speed change system applied to commercial vehicle Download PDF

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Publication number
CN116176257A
CN116176257A CN202310092954.9A CN202310092954A CN116176257A CN 116176257 A CN116176257 A CN 116176257A CN 202310092954 A CN202310092954 A CN 202310092954A CN 116176257 A CN116176257 A CN 116176257A
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CN
China
Prior art keywords
gear
input shaft
shaft
clutch
intermediate shaft
Prior art date
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Pending
Application number
CN202310092954.9A
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Chinese (zh)
Inventor
耿小虎
庄文钊
雷雨龙
张鹏雷
刘卫东
李兴忠
付尧
王彬宇
温官正
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Jilin University
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Jilin University
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Publication date
Application filed by Jilin University filed Critical Jilin University
Priority to CN202310092954.9A priority Critical patent/CN116176257A/en
Publication of CN116176257A publication Critical patent/CN116176257A/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
    • B60K6/50—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
    • B60K6/36—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

Abstract

The invention discloses a hybrid power speed change system applied to a commercial vehicle, which comprises: driving motor and first input shaft assembly: the device comprises a driving motor, a first input shaft first gear, a first input shaft second gear, a first input shaft third gear, a first sliding sleeve, a first spline hub and a first input shaft fourth gear; engine and second input shaft assembly: the engine, the engine output shaft, the third clutch, the second input shaft first gear, the second input shaft second gear, the second spline hub and the second sliding sleeve; planetary row assembly: the planetary gear comprises a sun gear, a planet carrier, a gear ring, a positioning gear hub, a third sliding sleeve, a fixed plate, an output flange and a speed change system output shaft. The hybrid power speed change system applied to the commercial vehicle adopts the joint sleeve and the dry clutch to achieve the purpose of gear shifting, has a simple structure, needs low cost during production and manufacture, adopts gear transmission, and has higher transmission efficiency.

Description

Hybrid power speed change system applied to commercial vehicle
Technical Field
The invention belongs to the technical field of gearboxes of commercial vehicles, and particularly relates to a hybrid power speed change system applied to a commercial vehicle.
Background
In the field of commercial vehicles, the characteristics and the endurance of the battery are considered, the pure electric mode is difficult to become the mainstream in a short period, the hybrid power technology can better meet the requirements of customers on the endurance of the commercial vehicles, and meanwhile, the fuel-saving effect is obvious. Under the policy of energy conservation and emission reduction, the hybrid electric vehicle is an important development direction of the automobile industry in China, and the transformation of commercial vehicles is important.
The traditional commercial vehicle hybrid power system adopts a hydraulic control mechanism to shift gears, is complex to produce and manufacture, has high maintenance difficulty and has lower transmission efficiency.
Disclosure of Invention
The invention aims to provide a hybrid power speed change system applied to a commercial vehicle, which has a simple structure and high transmission efficiency.
The technical scheme provided by the invention is as follows:
a hybrid transmission system for a commercial vehicle, comprising:
a driving motor including a stator and a rotor; the stator is fixedly connected with the speed change system shell;
the first input shaft is fixedly connected with the rotor, and a first input shaft first gear and a first input shaft second gear are fixedly arranged on the first input shaft; the first input shaft is sleeved with a first input shaft third gear and a first input shaft fourth gear in a hollow mode, and is selectively engaged with the first input shaft third gear and the first input shaft fourth gear;
the first intermediate shaft is fixedly provided with a first intermediate shaft first gear, and is sleeved with a first intermediate shaft second gear in a hollow manner;
the first intermediate shaft first gear is meshed with the first input shaft first gear, and the first intermediate shaft second gear is meshed with the first input shaft second gear;
a second countershaft selectively engaged with the first countershaft first gear and the first countershaft second gear; the second intermediate shaft is fixedly provided with a second intermediate shaft first gear and a second intermediate shaft second gear;
the second intermediate shaft first gear is meshed with the first input shaft third gear, and the second intermediate shaft second gear is meshed with the first input shaft fourth gear;
an engine mounted on the transmission housing;
a second input shaft selectively connected to the engine output shaft; the second input shaft is sleeved with a second input shaft first gear and a second input shaft second gear in an empty mode, and is selectively engaged with the second input shaft first gear and the second input shaft second gear;
the second input shaft first gear is meshed with the second intermediate shaft first gear, and the second input shaft second gear is meshed with the second intermediate shaft second gear;
a third intermediate shaft connected to the second intermediate shaft;
a planetary gear set mechanism, comprising: sun gear, planet wheel, planet carrier and gear ring;
wherein the sun gear is fixedly connected to the third intermediate shaft, and the ring gear is selectively engaged with the transmission system housing or the carrier;
and the output flange is fixedly connected with the planet carrier.
Preferably, the hybrid transmission system applied to a commercial vehicle further includes:
a first spline hub fixedly mounted on the first input shaft, the first spline hub having external splines thereon;
the first sliding sleeve is installed on the first spline hub in a matching mode; the first sliding sleeve is provided with an internal spline, and the first sliding sleeve slides along an external spline on the first spline hub through the internal spline to be engaged with or separated from the first input shaft third gear and the first input shaft fourth gear.
Preferably, the second intermediate shaft is engaged with or disengaged from the first intermediate shaft first gear by a first clutch, and is engaged with or disengaged from the first intermediate shaft second gear by a second clutch.
Preferably, the hybrid transmission system applied to a commercial vehicle further includes: a clutch housing fixedly connected with the second intermediate shaft;
the first clutch comprises a first clutch driving friction plate and a first clutch driven steel sheet; the first clutch driving friction plate is fixedly connected with the first intermediate shaft, and the first clutch driven steel sheet is fixedly connected in the clutch shell;
the second clutch comprises a second clutch driving friction plate and a second clutch driven steel sheet; the second clutch driving friction plate is fixedly connected with the first intermediate shaft second gear, and the second clutch driven steel sheet is fixedly connected in the clutch shell.
Preferably, the second intermediate shaft is connected with the third intermediate shaft through a coupling.
Preferably, the hybrid transmission system applied to a commercial vehicle further includes:
a second spline hub fixedly mounted on the second input shaft, the second spline hub having external splines thereon;
the second sliding sleeve is installed on the second spline hub in a matching way; the second sliding sleeve is provided with an internal spline, and the second sliding sleeve slides along an external spline on the second spline hub through the internal spline to be engaged with or separated from the second input shaft first gear and the second input shaft second gear.
Preferably, the hybrid transmission system applied to a commercial vehicle further includes:
a positioning plate fixed within the transmission housing;
the positioning gear hub is fixedly connected with the gear ring, and an external spline is arranged on the positioning gear hub;
and a third sliding sleeve which is installed on the positioning gear hub in a matching way, is provided with an internal spline, and slides along an external spline on the positioning gear hub through the internal spline to be engaged with or separated from the speed change system shell and the planet carrier.
Preferably, the first input shaft, the first intermediate shaft, the second intermediate shaft, and the second input shaft are supported by bearings on the transmission case.
Preferably, a third clutch is provided between the second input shaft and the engine output shaft, and connection to or disconnection from the engine output shaft is achieved by the third clutch.
The beneficial effects of the invention are as follows:
the hybrid power speed change system applied to the commercial vehicle can be switched among a pure electric mode, a pure oil mode and a hybrid power mode, and meanwhile, each mode is provided with a plurality of gears, different modes and gears can be selected according to the running working condition of the commercial vehicle, the road environment, the intention of a driver and the like, and the dynamic property, the fuel economy and the driving comfort of the commercial vehicle are improved.
The hybrid power speed change system applied to the commercial vehicle adopts gear transmission, and has high transmission efficiency; the gear shifting purpose is achieved by adopting the joint sleeve and the dry clutch, the structure is simple, and the cost required in production and manufacture is low.
Drawings
Fig. 1 is a schematic diagram of a hybrid transmission system for a commercial vehicle according to the present invention.
Fig. 2 is a schematic cross-sectional view of a hybrid transmission system for a commercial vehicle according to the present invention.
Fig. 3 is a pure 1-gear power transmission route diagram according to the present invention.
Fig. 4 is a pure 2-gear power transmission route diagram according to the present invention.
Fig. 5 is a pure 3-gear power transmission route diagram according to the present invention.
Fig. 6 is a pure 4-gear power transmission route diagram according to the present invention.
Fig. 7 is a pure 5-gear power transmission route diagram according to the present invention.
Fig. 8 is a pure 6-gear power transmission route diagram according to the present invention.
Fig. 9 is a pure 7-gear power transmission route diagram according to the present invention.
Fig. 10 is a pure 8-speed power transmission route diagram according to the present invention.
Fig. 11 is a pure oil 1-gear power transmission route diagram according to the present invention.
Fig. 12 is a pure oil 2-speed power transmission route diagram according to the present invention.
Fig. 13 is a pure oil 3-speed power transmission route diagram according to the present invention.
Fig. 14 is a pure oil 4-speed power transmission route diagram according to the present invention.
Fig. 15 is a hybrid 1-speed power transmission route diagram according to the present invention.
Fig. 16 is a hybrid 2-speed power transmission route diagram according to the present invention.
Fig. 17 is a hybrid 3-speed power transmission route diagram according to the present invention.
Fig. 18 is a hybrid 4-speed power transmission route diagram according to the present invention.
Detailed Description
The present invention is described in further detail below with reference to the drawings to enable those skilled in the art to practice the invention by referring to the description.
As shown in fig. 1-2, the present invention provides a hybrid transmission system for a commercial vehicle, comprising: stator 1, rotor 2, first input shaft first gear (first input shaft A1 gear) 3, first input shaft second gear (first input shaft A2 gear) 4, first input shaft 5, bearing 6, first input shaft third gear (first input shaft B1 gear) 7, first sliding sleeve (sliding sleeve E) 8, first spline hub 9, first input shaft fourth gear (first input shaft B2 gear) 10, bearing 11, fixed plate 12, positioning gear hub 13, third sliding sleeve (sliding sleeve G) 14, ring gear 15, planet wheel 16, planet carrier 17, third intermediate shaft 18, sun gear 19, bearing 20, output flange 21, transmission system output shaft 22, coupling 23, bearing 24, bearing 25, second input shaft 26, second input shaft second gear (second input shaft B2 gear) 27, second spline hub 28, second input shaft first gear (second input shaft B1 gear) 30, bearing 31, third output shaft K32, third intermediate shaft 33, second intermediate shaft C35, second intermediate shaft C2 gear (intermediate shaft C) 33, second intermediate shaft C45, second intermediate shaft C2 gear (intermediate shaft C) 35, intermediate shaft C2 gear) 30, bearing 35, second clutch C2 gear (intermediate shaft C2) 32, second intermediate shaft C2 gear) 33, second intermediate shaft C2 gear (intermediate shaft C2) 35, C2 gear) 35, second intermediate shaft C2 gear (C2) 30, C2 gear) 30, C, A transmission housing 46.
The hybrid power transmission system applied to the commercial vehicle is mainly divided into the following parts:
the driving motor and the first input shaft assembly include: the driving motor (comprising a stator 1 and a rotor 2), a first input shaft first gear (a first input shaft A1 gear) 3, a first input shaft second gear (a first input shaft A2 gear) 4, a first input shaft 5, a first input shaft third gear (a first input shaft B1 gear) 7, a first sliding sleeve (a sliding sleeve E) 8, a first spline hub 9 and a first input shaft fourth gear (a first input shaft B2 gear) 10.
The stator 1 is fixedly connected with the transmission housing 46, the rotor 2 is fixedly connected with the first input shaft 5, and the first input shaft 5 is mounted on the transmission housing 46 through the bearing 6 and the bearing 11. The first input shaft first gear (first input shaft A1 gear) 3 and the first input shaft second gear (first input shaft A2 gear) 4 are fixedly mounted on the first input shaft 5 respectively, the first input shaft third gear (first input shaft B1 gear) 7 and the first input shaft fourth gear (first input shaft B2 gear) 10 are mounted on the first input shaft 5 in a sleeved mode respectively, the first spline hub 9 is fixedly connected with the first input shaft 5, and the internal spline of the first sliding sleeve (sliding sleeve E) 8 can slide on the external spline of the first spline hub 9.
When the rotor 2 of the driving motor rotates, the first input shaft 5 is driven to rotate, and the first input shaft first gear (first input shaft A1 gear) 3, the first input shaft second gear (first input shaft A2 gear) 4 and the first spline hub 9 rotate along with the first input shaft 5.
When the first sliding sleeve (sliding sleeve E) 8 is in the middle position, the internal spline of the first sliding sleeve (sliding sleeve E) 8 is separated from the external spline of the first input shaft third gear (first input shaft B1 gear) 7 and the external spline of the first input shaft fourth gear (first input shaft B2 gear) 10, and the first input shaft B1 gear 7 and the first input shaft B2 gear 10 idle on the first input shaft 5.
When the first sliding sleeve (sliding sleeve E) 8 moves leftwards, the internal spline of the first sliding sleeve (sliding sleeve E) 8 is simultaneously meshed with the external spline of the first spline hub 9 and the external spline of the first input shaft B1 gear 7, and the first spline hub 9 drives the first input shaft B1 gear 7 to rotate through the first sliding sleeve (sliding sleeve E) 8.
When the first sliding sleeve (sliding sleeve E) 8 moves rightwards, the internal spline of the first sliding sleeve (sliding sleeve E) 8 is simultaneously meshed with the external spline of the first spline hub 9 and the external spline of the first input shaft B2 gear 10, and the first spline hub 9 drives the first input shaft B2 gear 10 to rotate through the first sliding sleeve (sliding sleeve E) 8.
The jackshaft assembly includes: a first intermediate shaft 41, a first intermediate shaft second gear (first intermediate shaft A2 gear) 39, a first intermediate shaft first gear (first intermediate shaft A1 gear) 40, a first clutch (clutch C1) 44, a second clutch (clutch C2) 43, a clutch housing 45, a second intermediate shaft 37, a second intermediate shaft first gear (second intermediate shaft B1 gear) 36, a second intermediate shaft second gear (second intermediate shaft B2 gear) 35, a coupling 23, and a third intermediate shaft 18.
The first intermediate shaft A1 gear 40 is fixedly mounted on the first intermediate shaft 41, the first intermediate shaft A2 gear 39 is sleeved on the first intermediate shaft 41 in a hollow mode, the first intermediate shaft A1 gear 40 and the first input shaft A1 gear 3 are meshed with each other, the first intermediate shaft A2 gear 39 and the first input shaft A2 gear 4 are meshed with each other, one end of the first intermediate shaft 41 is mounted on the speed change system shell 46 through a bearing 42, the other end of the first intermediate shaft 41 is fixedly connected with a first clutch (clutch C1) 44 driving friction plate, a second clutch (clutch C2) 43 is fixedly connected with the first intermediate shaft A2 gear 39, a first clutch (clutch C1) 44 driven steel sheet and a second clutch (clutch C2) 43 driven steel sheet are fixedly connected to a clutch shell 45 together, the clutch shell 45 is fixedly connected to the second intermediate shaft 37, and the second intermediate shaft 37 is mounted on the speed change system shell 46 through a bearing 38.
The second intermediate shaft B1 gear 36 and the second intermediate shaft B2 gear 35 are fixedly mounted on a second intermediate shaft 37 together, the second intermediate shaft 37 is connected with the third intermediate shaft 18 through a coupling 23, and the sun gear 19 is fixedly mounted on the third intermediate shaft 18.
The rotor 2 of the driving motor rotates to drive the first input shaft 5 to rotate, the first input shaft 5 rotates to drive the first input shaft A1 gear 3 and the first input shaft A2 gear to rotate 4, the first input shaft A1 gear 3 drives the first intermediate shaft A1 gear 40 to rotate, meanwhile, the first input shaft A2 gear 4 drives the first intermediate shaft A2 gear 39 to rotate, the first intermediate shaft A1 gear 40 drives the first intermediate shaft 41 to rotate, and the first intermediate shaft A2 gear 39 idles on the first intermediate shaft 41.
When the first clutch (clutch C1) 44 is engaged and the second clutch (clutch C2) 43 is disengaged, the first intermediate shaft 41 rotates the second intermediate shaft 37 via the first clutch (clutch C1), and the second intermediate shaft 37 rotates the third intermediate shaft 18 via the coupling 23.
When the first clutch (clutch C1) 44 is disengaged and the second clutch (clutch C2) 43 is engaged, the first intermediate shaft 41 rotates the second intermediate shaft 37 through the second clutch (clutch C2) 43, and the second intermediate shaft 37 rotates the third intermediate shaft 18 through the coupling 23.
The engine and the second input shaft assembly comprise: an engine 34, an engine output shaft 33, a third clutch (clutch K) 32, a second input shaft 26, a second input shaft B1 gear 30, a second input shaft B2 gear 27, a second spline hub 28, and a second sliding sleeve (sliding sleeve F) 29.
The driving end of the third clutch (clutch K) 32 is connected with the engine output shaft 33, the driven end of the third clutch (clutch K) 32 is connected with the second input shaft 26, the second input shaft B1 gear 30 and the second input shaft B2 gear 27 are respectively sleeved on the second input shaft 26 in a hollow mode, the second spline hub 28 is fixedly connected with the second input shaft 26, the inner spline of the second sliding sleeve (sliding sleeve F) 29 can slide on the outer spline of the second spline hub 28, and the second input shaft 26 is mounted on the speed change system shell 46 through the bearing 25 and the bearing 31.
When the engine 34 is operated, the engine output shaft 33 drives the driving end of the third clutch (clutch K) 32 to rotate, and when the third clutch (clutch K) 32 is combined, the driven end of the third clutch (clutch K) 32 rotates to drive the second input shaft 26 to rotate.
When the second sliding sleeve (sliding sleeve F) 29 is in the neutral position, the internal spline of the second sliding sleeve (sliding sleeve F) 29 is separated from the external spline of the second input shaft B1 gear 30 and the external spline of the second input shaft B2 gear 27, and the second input shaft B1 gear 30 and the second input shaft B2 gear 27 idle on the second input shaft 26.
When the second sliding sleeve (sliding sleeve F) 29 moves leftwards, the internal spline of the second sliding sleeve (sliding sleeve F) 29 is simultaneously meshed with the external spline of the second spline hub 28 and the external spline of the second input shaft B1 gear 30, and the second spline hub 28 drives the second input shaft B1 gear 30 to rotate through the second sliding sleeve (sliding sleeve F) 29.
When the second sliding sleeve (sliding sleeve F) 29 moves to the right, the internal spline of the second sliding sleeve (sliding sleeve F) 29 is simultaneously engaged with the external spline of the second spline hub 28 and the external spline of the second input shaft B2 gear 27, and the second spline hub 28 drives the second input shaft B2 gear 27 to rotate through the second sliding sleeve (sliding sleeve F).
The planet row assembly includes: sun gear 19, planet gears 16, planet carrier 17, ring gear 15, positioning hub 13, third sliding sleeve (sliding sleeve G) 14, fixed plate 12, output flange 21 and transmission system output shaft 22.
The sun gear 19 is fixedly arranged on the third intermediate shaft 18, the planet gears 16 are sleeved on the planet carrier 17 in an empty mode, the planet gears 16 and the gear ring 15 are meshed with each other, the positioning gear hub 13 is fixedly connected with the gear ring 15, and the inner spline of the third sliding sleeve (sliding sleeve G) 14 can slide on the outer spline of the positioning gear hub 13. The left end of the planet carrier 17 is arranged on the speed change system shell 46 through a bearing 24, the right end of the planet carrier 17 is arranged on the speed change system shell 46 through a bearing 20, the right end of the planet carrier 17 is fixedly connected with the speed change system output shaft 22, and the output flange 21 is fixedly arranged on the speed change system output shaft 22.
When the third sliding sleeve (sliding sleeve G) 14 is positioned in the middle position, the internal spline of the third sliding sleeve (sliding sleeve G) 14 is separated from the fixed plate 12 and the external spline at the left end of the planet carrier 17, and the planet carrier 17 and the gear ring 15 rotate freely.
The third sliding sleeve (sliding sleeve G) 14 moves leftwards, the fixed plate 12 fixes the gear ring 15 through the third sliding sleeve (sliding sleeve G) 14 and the positioning gear hub 13, the gear ring 15 is kept still, and power is output to the output shaft 22 and the output flange 21 through the planet carrier 17.
The third sliding sleeve (sliding sleeve G) 14 moves rightwards, the internal spline of the third sliding sleeve (sliding sleeve G) 14 is meshed with the external spline of the positioning gear hub 13 and the external spline of the left end of the planet carrier 17, the gear ring 15, the planet carrier 17 and the positioning gear hub 13 form an integral synchronous rotation, and power is output to the speed change system output shaft 22 and the output flange 21 by the planet carrier 17.
The operating table of the gear shifting executive component of the hybrid power transmission system applied to the commercial vehicle is shown in table 1, and the power transmission route of each gear is shown in fig. 3-18. The specific working principle of the gear is described below by taking pure 1 gear, pure oil 2 gear and mixed 3 gear as examples.
Table 1 working table of shift actuator of hybrid transmission system applied to commercial vehicle
Figure BDA0004070908230000081
Figure BDA0004070908230000091
In table 1, "x" represents separation, "≡" represents combination, "≡" represents left shift, "-" represents middle position, "→" represents right shift.
Pure 1 gear
The power is output to the first input shaft 5 by the rotor 2 of the driving motor, the first input shaft A1 gear 3 is driven to rotate, and the first input shaft A1 gear 3 transmits the power to the first intermediate shaft A1 gear 40 through gear engagement transmission.
The first intermediate shaft A1 gear 40 rotates the first intermediate shaft 41, the first clutch (clutch C1) 44 is engaged, power is transmitted from the first intermediate shaft 41 to the second intermediate shaft 37, and then power is transmitted to the third intermediate shaft 18 through the coupling 23.
The third intermediate shaft 18 drives the sun gear 19 to rotate, the sun gear 19 transmits power to the planet gears 16 through gear engagement transmission, the planet gears 16 transmit power to the gear rings 15 through gear engagement transmission, and meanwhile the planet gears 16 drive the planet carriers 17 to rotate.
The third sliding sleeve (sliding sleeve G) 14 moves leftwards, the fixed plate 12 fixes the gear ring 15 through the third sliding sleeve (sliding sleeve G) 14 and the positioning gear hub 13, the gear ring 15 is kept still, and power is output to the transmission system output shaft 22 and the output flange 21 through the planet carrier 17.
Pure oil 2 gear
Power is output from the engine 34 to the engine output shaft 33, and the engine output shaft 33 rotates the active portion of the third clutch (clutch K) 32. The third clutch (clutch K) 32 is engaged, and power is transmitted from the engine output shaft 33 to the second input shaft 26, and the second input shaft 26 rotates the second spline hub 28.
The second sliding sleeve (sliding sleeve F) 29 moves rightwards, and the inner spline of the second sliding sleeve (sliding sleeve F) 29 is simultaneously meshed with the second input shaft B2 gear 27 and the outer spline of the second spline hub 28, so that the second input shaft B2 gear (27) is driven to rotate, and the second input shaft B2 gear (27) transmits power to the second intermediate shaft B2 gear 35 through gear meshing transmission.
The second intermediate shaft B2 gear 35 drives the second intermediate shaft 37 to rotate, and then the power is transmitted to the third intermediate shaft 18 through the coupling 23.
The third intermediate shaft 18 drives the sun gear 19 to rotate, the sun gear 19 transmits power to the planet gears 16 through gear engagement transmission, the planet gears 16 transmit power to the gear rings 15 through gear engagement transmission, and meanwhile the planet gears 16 drive the planet carriers 17 to rotate.
The third sliding sleeve (sliding sleeve G) 14 moves leftwards, the fixed plate 12 fixes the gear ring 15 through the sliding sleeve G14 and the positioning gear hub 13, the gear ring 15 is kept still, and power is output to the transmission system output shaft 22 and the output flange 21 through the planet carrier 17.
Mixed 3-gear
Power is input to the transmission by the rotor 2 of the drive motor and power by the engine 34.
The first power is output to the first input shaft 5 by the driving motor rotor 2, the first sliding sleeve (sliding sleeve E) 8 moves leftwards, the inner spline of the first sliding sleeve (sliding sleeve E) 8 is simultaneously meshed with the first input shaft B1 gear 7 and the outer spline of the first spline hub 9, the first spline hub 9 drives the first input shaft B1 gear 7 to rotate, and the first input shaft B1 gear 7 transmits power to the second intermediate shaft B1 gear 36 through gear meshing transmission.
The second power is output from the engine 34 to the engine output shaft 33, and the engine output shaft 33 rotates the active portion of the third clutch (clutch K) 32. The third clutch (clutch K) 32 is engaged, and power is transmitted from the engine output shaft 33 to the second input shaft 26, and the second input shaft 26 rotates the second spline hub 28. The second sliding sleeve (sliding sleeve F) 29 moves leftwards, the second sliding sleeve (sliding sleeve F) 29 is simultaneously meshed with the second input shaft B1 gear 30 and the external spline of the second spline hub 28, the second spline hub 28 drives the second input shaft B1 gear 30 to rotate, and the second input shaft B1 gear 30 transmits power to the second intermediate shaft B1 gear 36 through gear meshing transmission.
The first power and the second power are simultaneously transmitted to the second intermediate shaft B1 gear 36, the second intermediate shaft B1 gear 36 drives the second intermediate shaft 41 to rotate, and then the power is transmitted to the third intermediate shaft 18 through the coupling 23.
The third intermediate shaft 18 drives the sun gear 19 to rotate, the sun gear 19 transmits power to the planet gears 16 through gear engagement transmission, the planet gears 16 transmit power to the gear rings 15 through gear engagement transmission, and meanwhile the planet gears 16 drive the planet carriers 17 to rotate.
The third sliding sleeve (sliding sleeve G) 14 moves to the right, the inner spline of the third sliding sleeve (sliding sleeve G) 14 is simultaneously meshed with the outer spline of the planet carrier 17 and the positioning gear hub 13, and power is output to the speed change system output shaft 22 and the output flange 21 by the planet carrier 17.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.

Claims (9)

1. A hybrid transmission system for a commercial vehicle, comprising:
a driving motor including a stator and a rotor; the stator is fixedly connected with the speed change system shell;
the first input shaft is fixedly connected with the rotor, and a first input shaft first gear and a first input shaft second gear are fixedly arranged on the first input shaft; the first input shaft is sleeved with a first input shaft third gear and a first input shaft fourth gear in a hollow mode, and is selectively engaged with the first input shaft third gear and the first input shaft fourth gear;
the first intermediate shaft is fixedly provided with a first intermediate shaft first gear, and is sleeved with a first intermediate shaft second gear in a hollow manner;
the first intermediate shaft first gear is meshed with the first input shaft first gear, and the first intermediate shaft second gear is meshed with the first input shaft second gear;
a second countershaft selectively engaged with the first countershaft first gear and the first countershaft second gear; the second intermediate shaft is fixedly provided with a second intermediate shaft first gear and a second intermediate shaft second gear;
the second intermediate shaft first gear is meshed with the first input shaft third gear, and the second intermediate shaft second gear is meshed with the first input shaft fourth gear;
an engine mounted on the transmission housing;
a second input shaft selectively connected to the engine output shaft; the second input shaft is sleeved with a second input shaft first gear and a second input shaft second gear in an empty mode, and is selectively engaged with the second input shaft first gear and the second input shaft second gear;
the second input shaft first gear is meshed with the second intermediate shaft first gear, and the second input shaft second gear is meshed with the second intermediate shaft second gear;
a third intermediate shaft connected to the second intermediate shaft;
a planetary gear set mechanism, comprising: sun gear, planet wheel, planet carrier and gear ring;
wherein the sun gear is fixedly connected to the third intermediate shaft, and the ring gear is selectively engaged with the transmission system housing or the carrier;
and the output flange is fixedly connected with the planet carrier.
2. The hybrid transmission system for a commercial vehicle according to claim 1, further comprising:
a first spline hub fixedly mounted on the first input shaft, the first spline hub having external splines thereon;
the first sliding sleeve is installed on the first spline hub in a matching mode; the first sliding sleeve is provided with an internal spline, and the first sliding sleeve slides along an external spline on the first spline hub through the internal spline to be engaged with or separated from the first input shaft third gear and the first input shaft fourth gear.
3. The hybrid transmission system for a commercial vehicle according to claim 2, wherein the second countershaft is engaged with or disengaged from the first countershaft first gear by a first clutch and is engaged with or disengaged from the first countershaft second gear by a second clutch.
4. The hybrid transmission system for a commercial vehicle according to claim 3, further comprising: a clutch housing fixedly connected with the second intermediate shaft;
the first clutch comprises a first clutch driving friction plate and a first clutch driven steel sheet; the first clutch driving friction plate is fixedly connected with the first intermediate shaft, and the first clutch driven steel sheet is fixedly connected in the clutch shell;
the second clutch comprises a second clutch driving friction plate and a second clutch driven steel sheet; the second clutch driving friction plate is fixedly connected with the first intermediate shaft second gear, and the second clutch driven steel sheet is fixedly connected in the clutch shell.
5. The hybrid transmission system for a commercial vehicle according to claim 3 or 4, wherein the second intermediate shaft and the third intermediate shaft are connected by a coupling.
6. The hybrid transmission system for a commercial vehicle of claim 5, further comprising:
a second spline hub fixedly mounted on the second input shaft, the second spline hub having external splines thereon;
the second sliding sleeve is installed on the second spline hub in a matching way; the second sliding sleeve is provided with an internal spline, and the second sliding sleeve slides along an external spline on the second spline hub through the internal spline to be engaged with or separated from the second input shaft first gear and the second input shaft second gear.
7. The hybrid transmission system for a commercial vehicle of claim 6, further comprising:
a positioning plate fixed within the transmission housing;
the positioning gear hub is fixedly connected with the gear ring, and an external spline is arranged on the positioning gear hub;
and a third sliding sleeve which is installed on the positioning gear hub in a matching way, is provided with an internal spline, and slides along an external spline on the positioning gear hub through the internal spline to be engaged with or separated from the speed change system shell and the planet carrier.
8. The hybrid transmission system for a commercial vehicle according to claim 7, wherein the first input shaft, the first intermediate shaft, the second intermediate shaft, and the second input shaft are supported on the transmission housing via bearings, respectively.
9. The hybrid transmission system for a commercial vehicle according to claim 8, wherein a third clutch is provided between the second input shaft and the engine output shaft, and connection or disconnection with the engine output shaft is achieved by the third clutch.
CN202310092954.9A 2023-02-08 2023-02-08 Hybrid power speed change system applied to commercial vehicle Pending CN116176257A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310092954.9A CN116176257A (en) 2023-02-08 2023-02-08 Hybrid power speed change system applied to commercial vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310092954.9A CN116176257A (en) 2023-02-08 2023-02-08 Hybrid power speed change system applied to commercial vehicle

Publications (1)

Publication Number Publication Date
CN116176257A true CN116176257A (en) 2023-05-30

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ID=86432199

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310092954.9A Pending CN116176257A (en) 2023-02-08 2023-02-08 Hybrid power speed change system applied to commercial vehicle

Country Status (1)

Country Link
CN (1) CN116176257A (en)

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