CN113561757A - Single-motor single-planetary-row multi-gear hybrid power gearbox and hybrid power vehicle - Google Patents

Single-motor single-planetary-row multi-gear hybrid power gearbox and hybrid power vehicle Download PDF

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Publication number
CN113561757A
CN113561757A CN202110744037.5A CN202110744037A CN113561757A CN 113561757 A CN113561757 A CN 113561757A CN 202110744037 A CN202110744037 A CN 202110744037A CN 113561757 A CN113561757 A CN 113561757A
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China
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gear
transmission
shaft
motor
engine
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CN202110744037.5A
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CN113561757B (en
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周立
王德伟
孟斌
严军
李娟�
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Dongfeng Motor Group Co Ltd
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Dongfeng Motor Group Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/40—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 assembly or relative disposition of components
    • 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 discloses a single-motor single-planetary-row multi-gear hybrid power transmission and a hybrid power vehicle, which solve the technical problems of few driving gears of an engine, few ECVT modes and the like in the related technology. The invention provides a single-motor single-planet-row multi-gear hybrid power gearbox which comprises a box body, a gearbox input shaft, a motor input shaft, a single-planet row, a parallel shaft transmission mechanism, a gear shifting gear set, an output transmission mechanism, an EV transmission mechanism and 4 executing mechanisms. The selective connection among different components in the box body, the gearbox input shaft, the motor input shaft, the single planet row, the parallel shaft transmission mechanism, the gear shifting gear set, the output transmission mechanism and the EV transmission mechanism is realized through 4 executing mechanisms, 6-gear engine driving can be realized, 3-gear engine starting is realized, an EV driving mode, 6-gear parallel driving is realized, 3-gear parking power generation is realized, 2 ECVT modes can respectively realize low-speed and high-speed power shunting, and the driving power generation is realized while the vehicle is driven.

Description

Single-motor single-planetary-row multi-gear hybrid power gearbox and hybrid power vehicle
Technical Field
The application belongs to the technical field of automobile gearboxes, and particularly relates to a single-motor single-planet-row multi-gear hybrid gearbox and a hybrid vehicle.
Background
The single-motor multi-gear hybrid power transmission has been widely applied to various vehicles, and two main risk points exist: firstly, when the electric quantity of the battery is low, the battery cannot be started to operate in time; and secondly, if the vehicle runs at a lower speed after starting, the EV mode (pure electric drive mode) is generally adopted.
Aiming at the risk point one, if a conventional parallel fixed-axis gear framework is adopted, a driver needs to wait for the power generation of an engine until the electric quantity of a battery reaches the minimum starting requirement, and starts through a motor; or a friction type starting clutch needs to be added for direct starting, the cost and the axial size of parts are increased, and meanwhile, the friction control has higher requirements on the drivability and the reliability. If a planetary gear train architecture is adopted, the ECVT mode (hybrid transmission integrating a motor and simultaneously driving the motor to generate power when driving a vehicle to run, namely, a driving-power generation synchronous mode) can be considered for starting, but generally 2 or more planetary gear trains are used for being connected to form a plurality of gears, and a plurality of wet clutches, brakes and hydraulic modules are required to be used as executing elements, so that the complexity of the system is increased.
For risk point two, if the battery charge drops rapidly if operation continues at a lower vehicle speed, the EV mode must be exited and the engine-driven mode employed. And the engine cannot directly drive the wheels under the limitation of the first gear ratio. The solution is the same as the above, but the same problem of increased cost and system complexity exists.
In addition, the existing single-motor multi-gear hybrid transmission also has the technical problems of few engine driving gears, few ECVT modes and the like.
Disclosure of Invention
In order to solve the technical problems, the invention provides a single-motor single-planetary-row multi-gear hybrid power gearbox and a hybrid power vehicle, which can realize 6-gear engine driving, 3-gear engine starting, EV driving mode, 6-gear parallel driving, 3-gear parking power generation, and 2 ECVT modes can respectively realize low-speed and high-speed power splitting, so that the driving power generation is realized while the vehicle is driven.
The technical scheme adopted for achieving the purpose of the invention is that the single-motor single-planet-row multi-gear hybrid power gearbox comprises a box body, a gearbox input shaft, a motor input shaft, a single-planet row, an intermediate transmission gear, a parallel shaft transmission mechanism, a gear shifting gear set, an output transmission mechanism, an EV transmission mechanism and 4 actuating mechanisms; wherein:
the planet carrier of the single planet row is connected with the input shaft of the gearbox; the gear ring of the single planetary row is selectively connected with the intermediate transmission gear or a first shifting gear of the shifting gear set through a first actuating mechanism; the sun gear of the single planet row is connected with a sun gear shaft, the gear shifting gear set is arranged on the sun gear shaft, the sun gear shaft is selectively connected with the gear ring or the box body through a second execution mechanism, and the sun gear shaft is selectively connected with an intermediate gear or a second gear shifting gear of the gear shifting gear set through a third execution mechanism;
the parallel shaft transmission mechanism comprises an intermediate shaft, and a first transmission gear and a second transmission gear which are arranged on the intermediate shaft in parallel, wherein the first transmission gear is meshed with the intermediate transmission gear, and the second transmission gear is meshed with an intermediate gear of the gear shifting gear set;
the output transmission mechanism comprises an output shaft, a first gear shifting output gear, a second gear shifting output gear and a main reduction gear, wherein the first gear shifting output gear, the second gear shifting output gear and the main reduction gear are arranged on the output shaft and are used for being connected with wheels to form the main reduction gear;
the EV transmission mechanism is connected with the intermediate transmission gear and the motor input shaft, and the EV transmission mechanism is selectively connected with the wheel assembly through a fourth execution mechanism.
Optionally, the EV transmission mechanism includes an EV shaft, an EV transmission gear rotatably mounted on the EV shaft, and an EV main reduction gear fixedly connected with the EV shaft; the EV transmission gear is meshed with the intermediate transmission gear and a motor transmission gear arranged on the motor input shaft, and the EV transmission gear is selectively connected with the EV shaft through the fourth execution mechanism; the EV main reduction gear is connected with a differential composed of the wheels.
Optionally, the single-motor single-planet-row multi-gear hybrid power transmission realizes a 6-gear engine driving mode when the four actuating mechanisms act; wherein:
the power transmission path of the first gear mode of the engine is as follows: the gear ring is connected with the first gear shifting gear through the first actuating mechanism, the gear ring is connected with the sun gear shaft through the second actuating mechanism, and power output by an engine is transmitted to the wheels through the differential mechanism sequentially through the gearbox input shaft, the planet carrier, the sun gear shaft, the first gear shifting gear, the first gear shifting output gear and the main reduction gear;
the power transmission path of the second gear mode of the engine is as follows: the gear ring is connected with the first gear shifting gear through the first actuating mechanism, the sun wheel shaft is connected with the box body through the second actuating mechanism, and power output by an engine is transmitted to the wheels through the differential mechanism sequentially through the gearbox input shaft, the planet carrier, the gear ring, the first gear shifting gear, the first gear shifting output gear and the main reduction gear;
the power transmission path of the engine in the third gear mode is as follows: the gear ring is connected with the intermediate transmission gear through the first execution mechanism, the EV transmission gear is connected with the EV shaft through the fourth execution mechanism, the gear ring is connected with the sun gear shaft through the second execution mechanism, and power output by an engine is transmitted to the wheels through the differential mechanism in sequence;
the power transmission path of the engine fourth gear mode is as follows: the gear ring is connected with the intermediate transmission gear through the first execution mechanism, the EV transmission gear is connected with the EV shaft through the fourth execution mechanism, the sun gear shaft is connected with the box body through the second execution mechanism, and power output by an engine is transmitted to the wheels through the differential mechanism sequentially through the gearbox input shaft, the planet carrier, the gear ring, the intermediate transmission gear, the EV shaft and the EV main reduction gear;
the power transmission path of the engine in the fifth gear mode is as follows: the gear ring is connected with the sun gear shaft through the second executing mechanism, the sun gear shaft is connected with an intermediate gear of the gear shifting gear set through a third executing mechanism, the EV transmission gear is connected with the EV shaft through a fourth executing mechanism, and power output by an engine is transmitted to the wheels through the differential mechanism sequentially through the gearbox input shaft, the planet carrier, the sun gear shaft, the intermediate gear, the parallel shaft transmission mechanism, the intermediate transmission gear, the EV shaft and the EV main reduction gear;
the power transmission path of the engine in the six-gear mode is as follows: the gear ring is connected with the sun gear shaft through the second actuating mechanism, the sun gear shaft is connected with a second gear shifting gear of the gear shifting gear set through a third actuating mechanism, and power output by an engine is transmitted to the wheels through the differential mechanism sequentially through the gearbox input shaft, the planet carrier, the sun gear shaft, the second gear shifting gear, the second gear shifting output gear, the output shaft and the main reduction gear.
Optionally, the single-motor single-planetary-row multi-gear hybrid transmission realizes an EV mode and a parallel mode when the four actuators act; wherein:
the power transmission path in the EV mode is: the EV transmission gear is connected with the EV shaft through the fourth executing mechanism, and the power output by the motor is transmitted to the wheels through the differential mechanism sequentially through the motor input shaft, the motor transmission gear, the EV transmission gear, the fourth executing mechanism, the EV shaft and the EV main reduction gear;
the power transmission path of the parallel mode is as follows: the single-motor single-planet-row multi-gear hybrid power transmission realizes any one of the 6-gear engine driving modes; and the single-motor single-planet-row multi-gear hybrid transmission implements the EV mode.
Optionally, the single-motor single-planetary-row multi-gear hybrid transmission realizes a power compensation mode when shifting between the 6-gear engine driving modes; the power compensation mode is as follows: and when the single-motor single-planetary-row multi-gear hybrid power transmission is switched among the engine three-gear mode, the engine four-gear mode and the engine five-gear mode, and any one of the fourth actuating mechanisms is located at a middle position, controlling the single-motor single-planetary-row multi-gear hybrid power transmission to operate in the parallel mode.
Optionally, the single-motor single-planetary-row multi-gear hybrid transmission realizes a first ECVT mode and a second ECVT mode when the first actuator and the third actuator act; wherein:
the power transmission path of the first ECVT mode is: the gear ring is connected with the first gear shifting gear through the first actuating mechanism, the sun gear shaft is connected with an intermediate gear of the gear shifting gear set through a third actuating mechanism, and power output by an engine sequentially passes through the gearbox input shaft, the planet carrier, a sun gear and the gear ring in the single planet row to realize power split, sequentially passes through the first gear shifting output gear, the main reduction gear and is transmitted to the wheels through the differential mechanism; meanwhile, the power output by the engine sequentially passes through the gearbox input shaft, the single planet row, the intermediate gear, the parallel shaft transmission mechanism, the intermediate transmission gear, the EV transmission gear and the motor transmission gear, and drives the motor to generate power through the motor input shaft;
the power transmission path of the second ECVT mode is: the gear ring is connected with the intermediate transmission gear through the first actuating mechanism, the sun gear shaft is connected with a second shifting gear of the shifting gear set through a third actuating mechanism, and power output by an engine sequentially passes through the transmission input shaft, the planet carrier, a sun gear and the gear ring in the single planet row to realize power split, sequentially passes through the second shifting gear, the second shifting output gear and the main reduction gear, and is transmitted to the wheels through the differential mechanism; meanwhile, the power output by the engine sequentially passes through the gearbox input shaft, the single planet row, the intermediate transmission gear, the EV transmission gear and the motor transmission gear and is driven by the motor input shaft to generate power.
Optionally, the single-motor single-planetary-row multi-gear hybrid transmission realizes a first engine starting mode, a second engine starting mode and a third engine starting mode, and a first parking power generation mode, a second parking power generation mode and a third parking power generation mode when the first actuator, the second actuator and the third actuator act; wherein:
the power transmission path of the first start engine mode is: the gear ring is connected with the intermediate transmission gear through the first executing mechanism, the gear ring is connected with the sun gear shaft through the second executing mechanism, and when the vehicle is in a static state, power output by a motor sequentially passes through the motor output shaft, the motor transmission gear, the EV transmission gear, the intermediate transmission gear and the single planet row and reversely drags the engine through the gearbox input shaft so as to start the engine;
the power transmission path of the first stop power generation mode is completely opposite to the power transmission path of the first start engine mode;
the power transmission path of the second start engine mode is: the gear ring is connected with the intermediate transmission gear through the first execution mechanism, the sun gear shaft is connected with the box body through the second execution mechanism, when the vehicle is in a static state, power output by the motor sequentially passes through the motor output shaft, the motor transmission gear, the EV transmission gear, the intermediate transmission gear, the gear ring, the planet gear and the planet carrier, and reversely drags the engine through the gearbox input shaft, so that the engine is started;
the power transmission path of the second stop power generation mode is completely opposite to the power transmission path of the second start engine mode;
the power transmission path of the third start engine mode is: the gear ring is connected with the sun gear shaft through the second actuating mechanism, the sun gear shaft is connected with an intermediate gear of the gear shifting gear set through a third actuating mechanism, and when a vehicle is in a static state, power output by a motor sequentially passes through the motor output shaft, the motor transmission gear, the EV transmission gear, the intermediate transmission gear, the parallel shaft transmission mechanism, the intermediate gear and the single planet row and reversely drags an engine through the gearbox input shaft so as to start the engine;
the power transmission path of the third stop power generation mode is completely opposite to the power transmission path of the third start engine mode.
Optionally, the single-motor single-planet-row multi-gear hybrid power transmission realizes a braking energy recovery mode when the fourth executing mechanism acts; the power transmission path of the braking energy recovery mode is as follows: the EV transmission gear is connected with the EV shaft through the fourth executing mechanism, and when braking is performed, power input from the wheel assembly is transmitted to the EV main reduction gear through the differential mechanism, and is transmitted to the motor transmission gear and the motor input shaft through the EV shaft, the fourth executing mechanism and the EV transmission gear in sequence to drive the motor to generate power.
Optionally, the first actuator, the second actuator, the third actuator, and the fourth actuator are synchronizers or clutches.
Based on the same invention concept, the invention also provides a hybrid vehicle which comprises the single-motor single-planet-row multi-gear hybrid transmission.
According to the technical scheme, the single-motor single-planet-row multi-gear hybrid power gearbox integrally comprises a box body, a gearbox input shaft, a motor input shaft, a single-planet row, an intermediate transmission gear, a parallel shaft transmission mechanism, a gear shifting gear set, an output transmission mechanism, an EV transmission mechanism and 4 execution mechanisms. The selective connection between the different members described above is achieved by means of 4 actuators. The single planetary gear row needs to be integrally locked or the sun gear is locked in the gear shifting process, the integral locking means that the sun gear, the planet gear/the planet carrier and the gear ring of the single planetary gear row rotate together, the whole single planetary gear row rotates together, the transmission ratio is 1, when the sun gear is locked, one of the gear ring and the planet carrier is an input end, the other is an output end, and the transmission ratio is not equal to 1. The first actuating mechanism is arranged on the gear ring of the single planetary row, the second actuating mechanism and the third actuating mechanism are arranged on the sun shaft of the single planetary row, and the action and mutual matching of the three actuating mechanisms can realize the integral locking of the single planetary row or the locking of the sun wheel, and the connection of each component in the single planetary row with other gears or structures.
The invention provides a parallel shaft transmission mechanism which is arranged in a single-motor single-planet-row multi-gear hybrid transmission case and comprises an intermediate shaft, a first transmission gear and a second transmission gear which are arranged on the intermediate shaft in parallel, wherein the first transmission gear and the intermediate transmission gear are kept in a normally meshed state, and the second transmission gear and an intermediate gear of a gear shifting gear set are kept in a normally meshed state. Different power transmission paths between the single planetary row and the gear shifting set are established through the parallel shaft transmission machine, so that the single-motor single-planetary-row multi-gear hybrid power transmission provided by the invention can realize 2 ECVT modes, and the 2 ECVT modes can respectively realize low-speed and high-speed power shunting, thereby realizing driving power generation while driving a vehicle.
The EV transmission mechanism, the intermediate transmission gear and the motor input shaft are kept in a normally connected state, the EV transmission mechanism is internally provided with a fourth execution mechanism, and the EV transmission mechanism is selectively connected with the wheel assembly through the fourth execution mechanism, so that the single-motor single-planetary-row multi-gear hybrid power gearbox provided by the invention can realize multiple modes such as a parallel mode, engine starting, motor power generation and the like.
Compared with the prior art, the single-motor single-planet-row multi-gear hybrid power transmission provided by the invention realizes selective connection among different components through 4 actuating mechanisms, can realize 6-gear engine driving, 3-gear engine starting, EV driving mode, 6-gear parallel driving and 3-gear parking power generation, and can realize low-speed and high-speed power splitting respectively in 2 ECVT modes, thereby realizing driving power generation while driving a vehicle. Has the advantages of simple structure and low cost.
Drawings
FIG. 1 is a schematic structural diagram of a single-motor single-planetary-row multi-gear hybrid transmission in an embodiment of the invention.
Description of reference numerals: 100-single motor single planet row multi-gear hybrid power transmission case; 10-a gearbox input shaft; 20-motor input shaft, 21-motor transmission gear; 30-single planet row, 31-sun gear, 32-sun gear shaft, 33-planet gear, 34-planet carrier, 35-ring gear; 40-parallel shaft transmission mechanism, 41-first transmission gear, 42-second transmission gear and 43-intermediate shaft; 50-shift gear set, 51-first shift gear, 52-second shift gear, 53-intermediate gear; 60-output transmission mechanism, 61-first gear shifting output gear, 62-second gear shifting output gear, 63-main reducing gear, 64-output shaft; 70-EV transmission mechanism, 71-EV transmission gear, 72-EV main reduction gear and 73-EV shaft; 80-intermediate drive gear; 90-a box body; s1-first actuator, S2-second actuator, S3-third actuator, S4-fourth actuator; 200-an engine; 300-torsion limiting shock absorber; 400-motor; 500-differential gear.
Detailed Description
In order to make the present application more clearly understood by those skilled in the art to which the present application pertains, the following detailed description of the present application is made with reference to the accompanying drawings by way of specific embodiments.
In order to solve the technical problems of few driving gears of an engine, few ECVT modes and the like in the related technology, the single-motor single-planet-row multi-gear hybrid power transmission provided by the invention realizes the selective connection among different components in a box body, a transmission input shaft, a motor input shaft, a single-planet row, a parallel shaft transmission mechanism, a gear shifting gear set, an output transmission mechanism and an EV transmission mechanism through 4 actuating mechanisms, can realize the driving of a 6-gear engine, the starting of a 3-gear engine, the EV driving mode, the parallel driving of 6 gears and the power generation of a 3-gear stop, and can realize the power splitting of low speed and high speed respectively in 2 ECVT modes, thereby realizing the driving and the power generation of a running vehicle at the same time of driving the vehicle. Has the advantages of simple structure and low cost. The technical problems existing in the related art can be solved. The technical scheme of the invention is described in detail by combining the specific embodiments as follows:
example 1:
the embodiment of the invention provides a single-motor single-planetary-row multi-gear hybrid transmission 100, which has a structure shown in fig. 1 and integrally comprises a box body 90, a transmission input shaft 10, a motor input shaft 20, a single-planetary-row 30, a parallel shaft transmission mechanism 40, a gear shifting gear set 50, an output transmission mechanism 60, an EV transmission mechanism 70, an intermediate transmission gear 80 and 4 execution mechanisms. In order to ensure smooth movement of the internal structure, the transmission structure inside the gearbox is generally arranged in the box body, and only the input shaft and the output shaft extend out of the box body. The present embodiment also adopts the common configuration, that is, the single planetary row 30, the parallel shaft transmission mechanism 40, the gear shift gear set 50, the output transmission mechanism 60, the EV transmission mechanism 70 and 4 actuators are respectively packaged in the box 90, and the transmission input shaft 10, the motor input shaft 20 and the output shaft 64 all partially extend out of the box 90 and are respectively used for connecting the engine 200, the motor 400 and the differential 500 formed by wheels.
Referring to fig. 1, the connection relationship among the above components/assemblies is specifically as follows:
the single planetary row 30 comprises a sun gear 31, a sun gear shaft 32, planet gears 33, a planet carrier 34 and a gear ring 35, wherein the sun gear 31 is fixedly connected with the sun gear shaft 32, the planet gears 33 are fixedly connected with the planet carrier 34, and the sun gear 31, the planet gears 33 and the gear ring 35 realize transmission and power split in a conventional meshing mode disclosed in the prior art.
In this embodiment, the planet carrier 34 of the single planet row 30 is connected to the transmission input shaft 10, specifically, the output shaft of the engine 200 is connected to a torque limiter damper 300, and the output shaft of the torque limiter damper 300 is used as the transmission input shaft 10. The ring gear 35 of the single planetary row 30 is connected to a first actuator S1, and the ring gear 35 is selectively connected to the intermediate gear 80 or the first shift gear 51 of the shift gear set 50 via the first actuator S1. In this embodiment, the sun gear shaft 32 of the single planetary row 30 has a certain length, and the second actuator S2, the third actuator S3 and the shift gear set 50 are mounted on the sun gear shaft 32. The sun gear shaft 32 is selectively connected to the ring gear 35 or the case 90 via a second actuator S2; and the sun gear shaft 32 is selectively connected with the intermediate gear 53 or the second shift gear 52 of the shift gear set 50 through the third actuator S3. It is understood that in other embodiments, the box 90 may be equivalent to other fixed different structures of the vehicle body, such as a vehicle body frame of an engine room.
The single planetary row 30 has three operating conditions during the shifting process: the whole locking, the sun gear locking and the normal transmission are carried out, the whole locking working condition is that the sun gear 31, the planet gear 33/the planet carrier 34 and the gear ring 35 of the single planet row 30 rotate together, the whole single planet row 30 rotates together as a whole, and the transmission ratio is 1; the sun gear is locked, that is, the sun gear 31 and the box body 90/the vehicle body framework are kept relatively static and do not rotate, one of the gear ring 35 and the planet carrier 34 is an input end, the other is an output end, and the transmission ratio is not equal to 1. The normal transmission operation of the single planetary row is to output the torque at the set transmission ratio through the single planetary row 30, which is described in detail in the prior art, and is not described herein with particular reference to the related disclosure of the prior art. The first actuator S1, the second actuator S2, and the third actuator S3 coupled to the single planetary row 30 cooperate with each other to achieve the switching of the single planetary row 30 under the three operating conditions and the coupling of the various components of the single planetary row 30 to other gears or structures.
The parallel shaft transmission mechanism 40 includes an intermediate shaft 43, and a first transmission gear 41 and a second transmission gear 42 which are mounted in parallel on the intermediate shaft 43, the first transmission gear 41 and the intermediate transmission gear 80 are kept in a normally engaged state, and the second transmission gear 42 and the intermediate gear 53 of the shift gear set 50 are kept in a normally engaged state. Different power transmission paths between the single planetary row 30 and the gear shifting gear set 50 are established through the parallel shaft transmission mechanism 40, so that the single-motor single-planetary-row multi-gear hybrid transmission 100 provided by the invention can realize 2 ECVT modes, and the 2 ECVT modes can respectively realize low-speed and high-speed power splitting, thereby realizing driving power generation while driving a vehicle.
The gear shifting gear set 50 comprises a first gear shifting gear 51, a second gear shifting gear 52 and an intermediate gear 53, wherein the first gear shifting gear 51 is rotatably sleeved on the sun gear shaft 32 and the gear ring 35 of the single planetary row 30, the second gear shifting gear 52 and the intermediate gear 53 are both rotatably sleeved on the sun gear shaft 32 of the single planetary row 30, the first gear shifting gear 51 and the second gear shifting gear 52 are used for being matched with the output transmission mechanism 60 to output different gears, and the intermediate gear 53 is kept in a constant meshing state with the second transmission gear 42 of the parallel shaft transmission mechanism 40, so that power transmission between the gear shifting gear set 50 and the parallel shaft transmission mechanism 40 is realized.
The output transmission mechanism 60 includes an output shaft 64, and a first shift output gear 61, a second shift output gear 62 and a main reduction gear 63 for connecting wheels, which are fixedly mounted on the output shaft 64, wherein the first shift output gear 61 is in a normally meshed state with the first shift gear 51 of the shift gear set 50, the second shift output gear 62 is in a normally meshed state with the second shift gear 52, and the main reduction gear 63 is in a normally meshed state with an input gear of a differential for outputting a driving torque of the engine ICE.
The EV drive mechanism 70 is connected to the intermediate transfer gear 80 and the motor input shaft 20, and the EV drive mechanism 70 is selectively connectable to the wheel assembly via a fourth actuator S4. Referring to fig. 1, in the present embodiment, to realize a plurality of operation modes, the EV drive mechanism 70 includes an EV shaft 73, an EV drive gear 71 rotatably mounted on the EV shaft 73, and an EV main reduction gear 72 fixedly connected to the EV shaft 73. The EV driving gear 71 is kept in a normally meshed state with the intermediate driving gear 80 and the motor driving gear 21 arranged on the motor input shaft 20, and the EV driving gear 71 is selectively connected with the EV shaft 73 through a fourth execution mechanism S4; the EV main reduction gear 72 is connected with a differential consisting of wheels for outputting a driving torque of the motor EM 1.
Four actuating mechanisms: the first actuator S1, the second actuator S2, the third actuator S3 and the fourth actuator S4 may be selectively implemented using synchronizers or clutches, and if synchronizers are implemented, dual-side synchronizers or single-side synchronizers may be selectively implemented. In combination with the multiple operating modes to be implemented by the single-motor single-planetary-row multi-gear hybrid transmission 100 in the present application, in the present embodiment, the first actuator S1, the second actuator S2, and the third actuator S3 are all double-sided synchronizers, and the fourth actuator S4 is a single-sided synchronizer.
Therefore, the single-motor single-planetary-row multi-gear hybrid transmission 100 can realize 6-gear engine driving, 3-gear engine starting, an EV driving mode, 6-gear parallel driving and 3-gear parking power generation, and 2 ECVT modes can respectively realize low-speed and high-speed power splitting, so that driving power generation is realized while a vehicle is driven.
The various modes of operation of the single motor, single planetary row, multiple speed hybrid transmission 100 are described in detail below:
the 6-gear engine driving mode is supported by the mutual cooperation of four actuators S1, S2, S3 and S4. The 6-gear engine driving modes are respectively as follows: the engine first gear mode, the engine second gear mode, the engine third gear mode, the engine fourth gear mode, the engine fifth gear mode and the engine sixth gear mode.
The power transmission path of the first gear mode of the engine is as follows:
referring specifically to fig. 1, the first actuator S1 is shifted to the right so that the ring gear 35 is connected with the first shift gear 51 through the first actuator S1. The second actuator S2 is moved to the left so that the ring gear 35 is connected to the sun gear shaft 32 through the second actuator S2 and the single planetary row 30 is locked. The power output by the engine 200 is transmitted to the wheels through the torque-limiting damper 300, the transmission input shaft 10, the planet carrier 34, the sun gear 31, the sun gear shaft 32, the second actuator S2, the first gear shift gear 51, the first gear shift output gear 61 and the main reduction gear 63 in sequence and the differential 500.
The power transmission path of the second gear mode of the engine is as follows:
referring specifically to fig. 1, the first actuator S1 is shifted to the right so that the ring gear 35 is connected with the first shift gear 51 through the first actuator S1. The second actuator S2 is moved to the right so that the sun gear shaft 32 is connected to the case 90 through the second actuator S2, at which time the sun gear 31 is locked. The power output by the engine 200 is transmitted to the wheel assembly via the differential 500 sequentially via the torque-limiting damper 300, the transmission input shaft 10, the planet carrier 34, the ring gear 35, the first actuator S1, the first shift gear 51, the first shift output gear 61, and the main reduction gear 63.
The power transmission path of the engine in the third gear mode is as follows:
referring specifically to fig. 1, the first actuator S1 is shifted to the left so that the ring gear 35 is connected to the intermediate transfer gear 80 via the first actuator S1. The fourth actuator S4 is moved to the right so that the EV drive gear 71 is connected to the EV shaft 73 through the fourth actuator S4. The second actuator S2 is moved to the left so that the ring gear 35 is connected to the sun gear shaft 32 through the second actuator S2 and the single planetary row 30 is locked. The power output by the engine 200 is transmitted to the wheels through the torque-limiting damper 300, the transmission input shaft 10, the planet carrier 34, the sun gear 31, the sun gear shaft 32, the second actuating mechanism S2, the intermediate transmission gear 80, the EV transmission gear 71, the fourth actuating mechanism S4, the EV shaft 73 and the EV main reduction gear 72 in sequence and the differential 500.
The power transmission path of the engine fourth gear mode is as follows:
referring specifically to fig. 1, the first actuator S1 is shifted to the left so that the ring gear 35 is connected to the intermediate transfer gear 80 via the first actuator S1. The fourth actuator S4 is moved to the right so that the EV drive gear 71 is connected to the EV shaft 73 through the fourth actuator S4. The second actuator S2 is moved to the right so that the sun gear shaft 32 is connected to the case 90 through the second actuator S2, at which time the sun gear 31 is locked. The power output by the engine 200 is transmitted to wheels through a differential 500 in sequence through a torque-limiting damper 300, a transmission input shaft 10, a planet carrier 34, a planet wheel 33, a gear ring 35, a first actuating mechanism S1, an intermediate transmission gear 80, an EV transmission gear 71, a fourth actuating mechanism S4, an EV shaft 73 and an EV main reduction gear 72.
The power transmission path of the engine in the fifth gear mode is as follows:
with particular reference to fig. 1, the second actuator S2 is shifted to the left so that the ring gear 35 is connected to the sun gear shaft 32 via the second actuator S2 and the single planetary row 30 is locked. The third actuator S3 is moved to the left such that the sun gear shaft 32 is connected with the intermediate gear 53 of the shift gear set 50 through the third actuator S3. The fourth actuator S4 is moved to the right so that the EV drive gear 71 is connected to the EV shaft 73 through the fourth actuator S4. The power output by the engine 200 is transmitted to the wheels through the torque-limiting damper 300, the transmission input shaft 10, the planet carrier 34, the sun gear 31, the sun gear shaft 32, the third actuating mechanism S3, the intermediate gear 53, the second transmission gear 42 of the parallel shaft transmission mechanism 40, the intermediate shaft 43, the first transmission gear 41, the intermediate transmission gear 80, the EV transmission gear 71, the fourth actuating mechanism S4, the EV shaft 73 and the EV main reduction gear 72 in sequence through the differential 500.
The power transmission path of the engine in the six-gear mode is as follows:
with particular reference to fig. 1, the second actuator S2 is shifted to the left so that the ring gear 35 is connected to the sun gear shaft 32 via the second actuator S2 and the single planetary row 30 is locked. The third actuator S3 is moved to the right such that the sun gear shaft 32 is connected with the second shift gear 52 of the shift gear set 50 through the third actuator S3. The power output by the engine 200 is transmitted to the wheels through the torque-limiting damper 300, the transmission input shaft 10, the planet carrier 34, the sun gear 31, the sun gear shaft 32, the third actuator S3, the second gear-shifting gear 52, the second gear-shifting output gear 62, the output shaft 64 and the main reduction gear 63 in sequence and the differential 500.
For the driving mode, the single-motor single-planetary-row multi-gear hybrid transmission 100 of the present embodiment implements the EV mode and the parallel mode when four actuators are actuated.
The power transmission path in the EV mode is:
referring specifically to fig. 1, the fourth actuator S4 is moved to the right so that the EV drive gear 71 is connected to the EV shaft 73 through the fourth actuator S4. The power output by the motor 400 is transmitted to the wheels through the differential 500 in sequence through the motor input shaft 20, the motor transmission gear 21, the EV transmission gear 71, the fourth actuating mechanism S4, the EV shaft 73 and the EV main reduction gear 72, so that a pure electric driving mode is realized.
Referring to fig. 1, in the parallel mode, the engine 200 and the motor 400 participate in driving the wheels at the same time, the power transmission path of the engine working gear is the same as the power transmission path of the engine single drive, the motor drive path is the same as the EV mode path, and the engine working gear and the motor drive path drive the wheels together to run. That is, the single-motor single-planetary-row multi-speed hybrid transmission 100 of the present embodiment can realize 6-speed parallel drive.
The power transmission path of the parallel mode is:
the single-motor single-planetary-row multi-gear hybrid transmission 100 realizes any one of 6-gear engine driving modes; and the single motor single planetary row multi-speed hybrid transmission 100 implements the EV mode. For details, reference is made to the detailed description of the above modes, which are not repeated herein.
In the single-motor single-planetary-row multi-gear hybrid transmission 100 of the embodiment, when the engine driving mode is switched from one gear to another gear, the bilateral synchronizers S1, S2 and S3 pass through the middle positions, at the moment, the transmission is in a neutral gear, the power of the engine cannot be transmitted to the driving wheels, and the power of the automobile is interrupted in the process. At this time, the single-motor single-planetary-row multi-gear hybrid transmission 100 of the embodiment can perform power compensation by the motor 400 when the engine drives the 3-gear, the 4-gear and the 5-gear to switch, so as to avoid power interruption.
Referring to fig. 1, the power compensation mode is: when the single-motor single-planetary-row multi-gear hybrid transmission 100 is switched among the engine third gear mode, the engine fourth gear mode and the engine fifth gear mode, and any one of the fourth actuators S4 is located at the middle position, the single-motor single-planetary-row multi-gear hybrid transmission 100 is controlled to operate in the parallel mode.
The single-motor single-planetary-row multi-speed hybrid transmission 100 of the present embodiment can realize two power generation modes, specifically, a first ECVT mode and a second ECVT mode, when the first actuator S1 and the third actuator S3 are actuated while the driving mode is being performed.
The power transmission path of the first ECVT mode is:
referring specifically to fig. 1, the first actuator S1 is shifted to the right to connect the ring gear 35 with the first shift gear 51 via the first actuator S1. The third actuator S3 is shifted to the left to connect the sun gear shaft 32 with the intermediate gear 53 of the shift gear set 50 via the third actuator S3. The power output by the engine 200 sequentially passes through the torque-limiting damper 300, the transmission input shaft 10 and the planet carrier 34, and is split in the single planet row 30 through the sun gear 31 and the gear ring 35, so that the vehicle is driven and the motor 400 is driven to generate power.
The power transmission path of the driving wheel is as follows: the power output by the engine 200 is transmitted to the wheels through the differential 500 in sequence through the torque-limiting damper 300, the transmission input shaft 10, the planet carrier 34, the planet wheel 33, the ring gear 35, the first actuator S1, the first shift gear 51, the first shift output gear 61 and the main reduction gear 63.
The power transmission path for the traveling crane power generation is as follows: the power output by the engine 200 sequentially passes through the torque-limiting damper 300, the transmission input shaft 10, the planet carrier 34, the planet gear 33, the sun gear 31, the sun gear shaft 32, the third executing mechanism S3, the intermediate gear 53, the second transmission gear 42, the intermediate shaft 43, the first transmission gear 41, the intermediate transmission gear 80, the EV transmission gear 71 and the motor transmission gear 21, and drives the motor 400 to generate power through the motor input shaft 20.
The power transmission path of the second ECVT mode is:
referring specifically to fig. 1, the first actuator S1 is shifted to the left to connect the ring gear 35 with the intermediate transfer gear 80 via the first actuator S1. The third actuator S3 is shifted to the right to connect the sun gear shaft 32 with the second shift gear 52 of the shift gear set 50 via the third actuator S3. The power output by the engine 200 sequentially passes through the torque-limiting damper 300, the transmission input shaft 10 and the planet carrier 34, and is split in power by the sun gear 31 and the gear ring 35 in the single planet row 30, so that the traveling power generation is carried out while the traveling driving is realized.
The power transmission path of the driving wheel is as follows: the power output by the engine 200 is transmitted to the wheels through the torque-limiting damper 300, the transmission input shaft 10, the planet carrier 34, the planet wheel 33, the sun wheel 31, the sun wheel shaft 32, the third actuating mechanism S3, the second gear-shifting gear 52, the second gear-shifting output gear 62 and the main reduction gear 63 in sequence and through the differential 500.
The power transmission path for the traveling crane power generation is as follows: the power output by the engine 200 passes through the torque-limiting damper 300, the gearbox input shaft 10, the planet carrier 34, the planet wheel 33, the gear ring 35, the first executing mechanism S1, the intermediate transmission gear 80, the EV transmission gear 71 and the motor transmission gear 21 in sequence, and drives the motor 400 to generate electricity through the motor input shaft 20.
The single-motor single-planetary-row multi-gear hybrid transmission 100 provided by the embodiment realizes three engine starting modes when the first actuator S1, the second actuator S2 and the third actuator S3 are actuated: a first, second, and third start engine modes, and three stop power generation modes: a first park power generation mode, a second park power generation mode, and a third park power generation mode.
The power transmission path for the first start engine mode is:
referring specifically to fig. 1, the first actuator S1 is shifted to the left to connect the ring gear 35 with the intermediate transfer gear 80 via the first actuator S1. The second actuator S2 is shifted to the left to connect the ring gear 35 with the sun gear shaft 32 via the second actuator S2, locking the single planetary row 30. At this time, the motor 400 is at the position P3, and the vehicle is at a standstill, and the power output by the motor 400 passes through the motor output shaft 64, the motor transmission gear 21, the EV transmission gear 71, the intermediate transmission gear 80, the first actuator S1, the second actuator S2, the single planetary row 30, the transmission input shaft 10, and the torque limiter damper 300 in sequence to drag the engine 200 reversely, so that the engine 200 is started.
The power transmission path for the second engine start mode is:
referring specifically to fig. 1, the first actuator S1 is shifted to the left to connect the ring gear 35 with the intermediate transfer gear 80 via the first actuator S1. The second actuator S2 is moved to the right to connect the sun gear shaft 32 to the case 90 via the second actuator S2, locking the sun gear 31. At this time, the motor 400 is at the position P3, and the vehicle is at a stationary state, and the power output by the motor 400 passes through the motor output shaft 64, the motor transmission gear 21, the EV transmission gear 71, the intermediate transmission gear 80, the first actuator S1, the ring gear 35, the planet gear 33, the planet carrier 34, the transmission input shaft 10 and the torque limiting damper 300 in sequence to drag the engine 200 reversely, so that the engine 200 is started.
The power transmission path for the third engine start mode is:
with particular reference to fig. 1, the second actuator S2 is shifted to the left to connect the ring gear 35 with the sun gear shaft 32 via the second actuator S2 to lock the single planetary row 30. The third actuator S3 is shifted to the left to connect the sun gear shaft 32 with the intermediate gear 53 of the shift gear set 50 via the third actuator S3. At this time, the motor 400 is in a position of P3, when the vehicle is in a stationary state, the power output by the motor 400 sequentially passes through the motor output shaft 64, the motor transmission gear 21, the EV transmission gear 71, the intermediate transmission gear 80, the first transmission gear 41, the intermediate shaft 43, the second transmission gear 42, the intermediate gear 53, the third actuator S3, the sun gear shaft 32 and the single planetary row 30, and reversely drags the engine 200 through the transmission input shaft 10 and the torque limiting damper 300, so that the engine 200 is started.
The power transmission paths of the stop power generation mode and the engine starting mode are just opposite, correspondingly, three stop power generation modes are provided, the positions of the synchronizers in the 3 stop power generation modes are consistent with the positions of the synchronizers in the 3 engine starting modes, and the power transmission paths are opposite. The method specifically comprises the following steps: the power transmission path of the first stop power generation mode is completely opposite to the power transmission path of the first start engine mode; the power transmission path of the second stop power generation mode is completely opposite to the power transmission path of the second start engine mode; the power transmission path for the third stop power mode is completely opposite to the power transmission path for the third start engine mode. The detailed power transmission path is referred to and will not be described herein.
In addition, the single-motor single-planetary-row multi-gear hybrid transmission 100 provided by the embodiment can also realize a braking energy recovery mode when the fourth actuator S4 is actuated.
The power transmission path in the braking energy recovery mode is as follows:
referring specifically to fig. 1, the fourth actuator S4 moves rightward to connect the EV drive gear 71 with the EV shaft 73 through the fourth actuator S4. During braking, the power input from the wheel set is transmitted to the EV main reduction gear 72 through the differential 500, and then transmitted to the motor transmission gear 21 and the motor input shaft 20 through the EV shaft 73, the fourth actuator S4 and the EV transmission gear 71 in sequence, thereby driving the motor 400 to generate power.
The moving operation of the 4 actuators S1, S2, S3 and S4 in various operating modes of the single-motor single-planetary-row multi-gear hybrid transmission 100 provided by the embodiment is as follows:
Figure BDA0003142254750000131
Figure BDA0003142254750000141
example 2:
based on the same inventive concept, the present embodiment provides a hybrid vehicle including the one-motor one-planetary-row multi-speed hybrid transmission 100 of embodiment 1 described above. Specifically, in this hybrid vehicle, except that the hybrid transmission is configured using the single-motor single-planetary-row multi-speed hybrid transmission 100 according to embodiment 1, the configurations, connection relationships, mounting positions, and the like of other devices can be referred to the related disclosures of the prior art, and will not be described herein.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims (10)

1. The utility model provides a single motor single planet row multi-gear hybrid transmission which characterized in that: the device comprises a box body, a gearbox input shaft, a motor input shaft, a single planet row, an intermediate transmission gear, a parallel shaft transmission mechanism, a gear shifting gear set, an output transmission mechanism, an EV transmission mechanism and 4 actuating mechanisms; wherein:
the planet carrier of the single planet row is connected with the input shaft of the gearbox; the gear ring of the single planetary row is selectively connected with the intermediate transmission gear or a first shifting gear of the shifting gear set through a first actuating mechanism; the sun gear of the single planet row is connected with a sun gear shaft, the gear shifting gear set is arranged on the sun gear shaft, the sun gear shaft is selectively connected with the gear ring or the box body through a second execution mechanism, and the sun gear shaft is selectively connected with an intermediate gear or a second gear shifting gear of the gear shifting gear set through a third execution mechanism;
the parallel shaft transmission mechanism comprises an intermediate shaft, and a first transmission gear and a second transmission gear which are arranged on the intermediate shaft in parallel, wherein the first transmission gear is meshed with the intermediate transmission gear, and the second transmission gear is meshed with an intermediate gear of the gear shifting gear set;
the output transmission mechanism comprises an output shaft, a first gear shifting output gear, a second gear shifting output gear and a main reduction gear, wherein the first gear shifting output gear, the second gear shifting output gear and the main reduction gear are arranged on the output shaft and are used for being connected with wheels to form the main reduction gear;
the EV transmission mechanism is connected with the intermediate transmission gear and the motor input shaft, and the EV transmission mechanism is selectively connected with the wheel assembly through a fourth execution mechanism.
2. The single-motor single-planetary-row multi-speed hybrid transmission of claim 1, wherein: the EV transmission mechanism comprises an EV shaft, an EV transmission gear rotatably mounted on the EV shaft and an EV main reduction gear fixedly connected with the EV shaft; the EV transmission gear is meshed with the intermediate transmission gear and a motor transmission gear arranged on the motor input shaft, and the EV transmission gear is selectively connected with the EV shaft through the fourth execution mechanism; the EV main reduction gear is connected with a differential composed of the wheels.
3. The single motor single planet row multiple speed hybrid transmission of claim 2, wherein: the single-motor single-planet-row multi-gear hybrid power transmission realizes a 6-gear engine driving mode when the four actuating mechanisms act; wherein:
the power transmission path of the first gear mode of the engine is as follows: the gear ring is connected with the first gear shifting gear through the first actuating mechanism, the gear ring is connected with the sun gear shaft through the second actuating mechanism, and power output by an engine is transmitted to the wheels through the differential mechanism sequentially through the gearbox input shaft, the planet carrier, the sun gear shaft, the first gear shifting gear, the first gear shifting output gear and the main reduction gear;
the power transmission path of the second gear mode of the engine is as follows: the gear ring is connected with the first gear shifting gear through the first actuating mechanism, the sun wheel shaft is connected with the box body through the second actuating mechanism, and power output by an engine is transmitted to the wheels through the differential mechanism sequentially through the gearbox input shaft, the planet carrier, the gear ring, the first gear shifting gear, the first gear shifting output gear and the main reduction gear;
the power transmission path of the engine in the third gear mode is as follows: the gear ring is connected with the intermediate transmission gear through the first execution mechanism, the EV transmission gear is connected with the EV shaft through the fourth execution mechanism, the gear ring is connected with the sun gear shaft through the second execution mechanism, and power output by an engine is transmitted to the wheels through the differential mechanism in sequence;
the power transmission path of the engine fourth gear mode is as follows: the gear ring is connected with the intermediate transmission gear through the first execution mechanism, the EV transmission gear is connected with the EV shaft through the fourth execution mechanism, the sun gear shaft is connected with the box body through the second execution mechanism, and power output by an engine is transmitted to the wheels through the differential mechanism sequentially through the gearbox input shaft, the planet carrier, the gear ring, the intermediate transmission gear, the EV shaft and the EV main reduction gear;
the power transmission path of the engine in the fifth gear mode is as follows: the gear ring is connected with the sun gear shaft through the second executing mechanism, the sun gear shaft is connected with an intermediate gear of the gear shifting gear set through a third executing mechanism, the EV transmission gear is connected with the EV shaft through a fourth executing mechanism, and power output by an engine is transmitted to the wheels through the differential mechanism sequentially through the gearbox input shaft, the planet carrier, the sun gear shaft, the intermediate gear, the parallel shaft transmission mechanism, the intermediate transmission gear, the EV shaft and the EV main reduction gear;
the power transmission path of the engine in the six-gear mode is as follows: the gear ring is connected with the sun gear shaft through the second actuating mechanism, the sun gear shaft is connected with a second gear shifting gear of the gear shifting gear set through a third actuating mechanism, and power output by an engine is transmitted to the wheels through the differential mechanism sequentially through the gearbox input shaft, the planet carrier, the sun gear shaft, the second gear shifting gear, the second gear shifting output gear, the output shaft and the main reduction gear.
4. The single-motor single-planetary-row multi-speed hybrid transmission of claim 3, wherein: the single-motor single-planet-row multi-gear hybrid power transmission realizes an EV mode and a parallel mode when the four actuating mechanisms act; wherein:
the power transmission path in the EV mode is: the EV transmission gear is connected with the EV shaft through the fourth executing mechanism, and the power output by the motor is transmitted to the wheels through the differential mechanism sequentially through the motor input shaft, the motor transmission gear, the EV transmission gear, the fourth executing mechanism, the EV shaft and the EV main reduction gear;
the power transmission path of the parallel mode is as follows: the single-motor single-planet-row multi-gear hybrid power transmission realizes any one of the 6-gear engine driving modes; and the single-motor single-planet-row multi-gear hybrid transmission implements the EV mode.
5. The single-motor single-planetary-row multi-speed hybrid transmission of claim 4, wherein: the single-motor single-planet-row multi-gear hybrid power transmission realizes a power compensation mode when shifting between the 6-gear engine driving modes; the power compensation mode is as follows: and when the single-motor single-planetary-row multi-gear hybrid power transmission is switched among the engine three-gear mode, the engine four-gear mode and the engine five-gear mode, and any one of the fourth actuating mechanisms is located at a middle position, controlling the single-motor single-planetary-row multi-gear hybrid power transmission to operate in the parallel mode.
6. The single motor single planet row multiple speed hybrid transmission of claim 2, wherein: the single-motor single-planet-row multi-gear hybrid transmission realizes a first ECVT mode and a second ECVT mode when the first actuating mechanism and the third actuating mechanism act; wherein:
the power transmission path of the first ECVT mode is: the gear ring is connected with the first gear shifting gear through the first actuating mechanism, the sun gear shaft is connected with an intermediate gear of the gear shifting gear set through a third actuating mechanism, and power output by an engine sequentially passes through the gearbox input shaft, the planet carrier, a sun gear and the gear ring in the single planet row to realize power split, sequentially passes through the first gear shifting output gear, the main reduction gear and is transmitted to the wheels through the differential mechanism; meanwhile, the power output by the engine sequentially passes through the gearbox input shaft, the single planet row, the intermediate gear, the parallel shaft transmission mechanism, the intermediate transmission gear, the EV transmission gear and the motor transmission gear, and drives the motor to generate power through the motor input shaft;
the power transmission path of the second ECVT mode is: the gear ring is connected with the intermediate transmission gear through the first actuating mechanism, the sun gear shaft is connected with a second shifting gear of the shifting gear set through a third actuating mechanism, and power output by an engine sequentially passes through the transmission input shaft, the planet carrier, a sun gear and the gear ring in the single planet row to realize power split, sequentially passes through the second shifting gear, the second shifting output gear and the main reduction gear, and is transmitted to the wheels through the differential mechanism; meanwhile, the power output by the engine sequentially passes through the gearbox input shaft, the single planet row, the intermediate transmission gear, the EV transmission gear and the motor transmission gear and is driven by the motor input shaft to generate power.
7. The single motor single planet row multiple speed hybrid transmission of claim 2, wherein: the single-motor single-planet-row multi-gear hybrid transmission realizes a first starting engine mode, a second starting engine mode and a third starting engine mode as well as a first parking power generation mode, a second parking power generation mode and a third parking power generation mode when the first executing mechanism, the second executing mechanism and the third executing mechanism act; wherein:
the power transmission path of the first start engine mode is: the gear ring is connected with the intermediate transmission gear through the first executing mechanism, the gear ring is connected with the sun gear shaft through the second executing mechanism, and when the vehicle is in a static state, power output by a motor sequentially passes through the motor output shaft, the motor transmission gear, the EV transmission gear, the intermediate transmission gear and the single planet row and reversely drags the engine through the gearbox input shaft so as to start the engine;
the power transmission path of the first stop power generation mode is completely opposite to the power transmission path of the first start engine mode;
the power transmission path of the second start engine mode is: the gear ring is connected with the intermediate transmission gear through the first execution mechanism, the sun gear shaft is connected with the box body through the second execution mechanism, when the vehicle is in a static state, power output by the motor sequentially passes through the motor output shaft, the motor transmission gear, the EV transmission gear, the intermediate transmission gear, the gear ring, the planet gear and the planet carrier, and reversely drags the engine through the gearbox input shaft, so that the engine is started;
the power transmission path of the second stop power generation mode is completely opposite to the power transmission path of the second start engine mode;
the power transmission path of the third start engine mode is: the gear ring is connected with the sun gear shaft through the second actuating mechanism, the sun gear shaft is connected with an intermediate gear of the gear shifting gear set through a third actuating mechanism, and when a vehicle is in a static state, power output by a motor sequentially passes through the motor output shaft, the motor transmission gear, the EV transmission gear, the intermediate transmission gear, the parallel shaft transmission mechanism, the intermediate gear and the single planet row and reversely drags an engine through the gearbox input shaft so as to start the engine;
the power transmission path of the third stop power generation mode is completely opposite to the power transmission path of the third start engine mode.
8. The single motor single planet row multiple speed hybrid transmission of claim 2, wherein: the single-motor single-planet-row multi-gear hybrid power transmission realizes a braking energy recovery mode when the fourth executing mechanism acts; the power transmission path of the braking energy recovery mode is as follows: the EV transmission gear is connected with the EV shaft through the fourth executing mechanism, and when braking is performed, power input from the wheel assembly is transmitted to the EV main reduction gear through the differential mechanism, and is transmitted to the motor transmission gear and the motor input shaft through the EV shaft, the fourth executing mechanism and the EV transmission gear in sequence to drive the motor to generate power.
9. The single motor single planetary row multi-speed hybrid transmission according to any one of claims 1 to 8, wherein: the first actuator, the second actuator, the third actuator and the fourth actuator are synchronizers or clutches.
10. A hybrid vehicle characterized in that: a single motor, single planet row multiple speed hybrid transmission comprising any one of claims 1 to 9.
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