CN113561757B - Single-motor single-planet-row multi-gear hybrid transmission and hybrid vehicle - Google Patents

Single-motor single-planet-row multi-gear hybrid transmission and hybrid vehicle Download PDF

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CN113561757B
CN113561757B CN202110744037.5A CN202110744037A CN113561757B CN 113561757 B CN113561757 B CN 113561757B CN 202110744037 A CN202110744037 A CN 202110744037A CN 113561757 B CN113561757 B CN 113561757B
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gear
transmission
shaft
motor
engine
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CN113561757A (en
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周立
王德伟
孟斌
严军
李娟�
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Dongfeng Motor Corp
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Dongfeng Motor Corp
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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

Abstract

The invention discloses a single-motor single-planet-row multi-gear hybrid power gearbox and a hybrid power vehicle, and solves the technical problems of few engine driving gears, few ECVT modes and the like in the related art. The invention provides a single-motor single-planetary-row multi-gear hybrid power gearbox which comprises a box body, a gearbox input shaft, a motor input shaft, a single planetary row, a parallel shaft transmission mechanism, a gear shifting gear set, an output transmission mechanism, an EV transmission mechanism and 4 execution mechanisms. The box body, the gearbox input shaft, the motor input shaft, the single planetary gear, the parallel shaft transmission mechanism, the gear shifting gear set, the output transmission mechanism and different components in the EV transmission mechanism are selectively connected through the 4 execution mechanisms, 6-gear engine driving, 3-gear engine starting, EV driving modes, 6-gear parallel driving, 3-gear parking power generation and 2 ECVT modes can respectively realize low-speed and high-speed power split, and realize driving power generation while driving a vehicle.

Description

Single-motor single-planet-row multi-gear hybrid transmission and hybrid 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 power gearbox and a hybrid power vehicle.
Background
Single-motor multi-gear hybrid gearboxes have been widely used in various types of vehicles, which have mainly two risk points: firstly, when the electric quantity of a battery is low, the operation cannot be started in time; secondly, when the vehicle runs at a low vehicle speed after starting, an EV mode (electric-only drive mode) is generally adopted.
Aiming at the first risk point, if a conventional parallel fixed-axis gear framework is adopted, a driver needs to wait for the engine to generate power until the electric quantity of the battery reaches the minimum starting requirement, and starts through a motor; or the friction type starting clutch is required 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 drivability and reliability. If the planetary gear set architecture is adopted, the ECVT mode (the hybrid gearbox with integrated motor drives the motor to generate power when driving the vehicle to run, namely the drive-generation synchronous mode) can be considered to start, but generally, 2 or more planetary gear sets are used to connect to form a plurality of gears, and a plurality of wet clutches, brakes and hydraulic modules are needed to be used as executing elements, so that the complexity of the system is increased.
For the second risk point, if the battery power is reduced rapidly while the vehicle is running at a lower speed, the EV mode must be exited and the engine driving mode is adopted. And the engine is limited by the first gear ratio and cannot directly drive the wheels. The solution is consistent with the foregoing, but there are also problems of increased cost and system complexity.
In addition, the existing single-motor multi-gear hybrid power gearbox 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-planet-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 split, 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 execution 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 planet row is selectively connected with the intermediate transmission gear or a first shifting gear of the shifting gear set through a first executing 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 executing mechanism, and the sun gear shaft is selectively connected with a middle gear or a second gear shifting gear of the gear shifting gear set through a third executing mechanism;
The parallel shaft transmission mechanism comprises an intermediate shaft, and a first transmission gear and a second transmission gear which are parallelly arranged on the intermediate shaft, 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 connecting wheels, and the first gear shifting output gear and the second gear shifting output gear are respectively meshed with a first gear shifting gear and a second gear shifting gear of the gear shifting gear set;
the EV transmission mechanism is connected with the intermediate transmission gear and the motor input shaft, and 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 is selectively connected with the EV shaft through the fourth actuating mechanism; the EV main subtracting gear is connected with a differential mechanism formed by wheels.
Optionally, the single-motor single-planetary-row multi-gear hybrid gearbox realizes a 6-gear engine driving mode when the four execution mechanisms act; wherein:
the power transmission path of the engine first gear mode is: the gear ring is connected with the first gear shifting gear through the first executing mechanism, the gear ring is connected with the sun gear shaft through the second executing mechanism, and power output by an engine is transmitted to the wheel assembly through the transmission 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 in sequence through the differential;
the power transmission path of the engine second gear mode is: the gear ring is connected with the first gear shifting gear through the first executing mechanism, the sun gear shaft is connected with the box body through the second executing mechanism, and power output by an engine is sequentially transmitted to the wheels 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 through the differential mechanism;
the power transmission path of the engine three-gear mode is: the gear ring is connected with the intermediate transmission gear through the first executing mechanism, the EV transmission gear is connected with the EV shaft through the fourth executing mechanism, the gear ring is connected with the sun gear shaft through the second executing mechanism, and power output by an engine is sequentially transmitted to the wheel assembly through the gearbox input shaft, the planet carrier, the sun gear shaft, the intermediate transmission gear, the EV shaft and the EV main subtracting gear;
The power transmission path of the engine four-gear mode is: the gear ring is connected with the intermediate transmission gear through the first executing mechanism, the EV transmission gear is connected with the EV shaft through the fourth executing mechanism, the sun gear shaft is connected with the box body through the second executing mechanism, and power output by the engine is sequentially transmitted to the wheels through the gearbox input shaft, the planet carrier, the gear ring, the intermediate transmission gear, the EV shaft and the EV main reduction gear through the differential mechanism;
the power transmission path of the engine five-gear mode is: 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 the fourth executing mechanism, and power output by an engine is sequentially transmitted to the wheel assembly 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 subtraction gear;
The power transmission path of the engine six-speed mode is: the gear ring is connected with the sun gear shaft through the second executing mechanism, the sun gear shaft is connected with a second gear shifting gear of the gear shifting gear set through a third executing mechanism, and power output by an engine is sequentially transmitted to the wheels 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 gearbox realizes an EV mode and a parallel mode when the four execution mechanisms act; wherein:
the EV mode power transmission path is: the EV transmission gear is connected with the EV shaft through the fourth actuating mechanism, and power output by a motor is sequentially transmitted to the wheel assembly through the motor input shaft, the motor transmission gear, the EV transmission gear, the fourth actuating mechanism, the EV shaft and the EV main subtracting gear through the differential;
the power transmission path of the parallel mode is as follows: the single-motor single-planet-row multi-gear hybrid gearbox realizes any one of the 6-gear engine driving modes; and the single-motor single-planetary-row multi-gear hybrid transmission achieves the EV mode.
Optionally, the single-motor single-planetary-row multi-gear hybrid gearbox 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 gearbox 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 positioned at the middle position, controlling the single-motor single-planetary-row multi-gear hybrid power gearbox to operate in the parallel mode.
Optionally, the single-motor single-planetary-row multi-gear hybrid gearbox realizes a first ECVT mode and a second ECVT mode when the first executing mechanism and the third executing 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 executing mechanism, the sun gear shaft is connected with an intermediate gear of the gear shifting gear set through the third executing mechanism, power output by an engine sequentially passes through the transmission input shaft and the planet carrier, power split is realized in the single planet row through the sun gear and the gear ring, and the power split is sequentially transmitted to the wheel assembly through the first gear shifting output gear, the main reduction gear and the differential; 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 electricity 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 executing mechanism, the sun gear shaft is connected with a second shifting gear of the shifting gear set through a third executing mechanism, power output by an engine sequentially passes through the transmission input shaft and the planet carrier, power split is realized in the single row through the sun gear and the gear ring, and the power split is sequentially transmitted to the wheels through the second shifting gear, the second shifting output gear and the main reduction gear 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 drives the motor to generate electricity through the motor input shaft.
Optionally, the single-motor single-planetary-row multi-gear hybrid gearbox realizes a first start engine mode, a second start engine mode and a third start engine mode, and 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, the vehicle is in a static state, and 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 the engine is reversely towed through the transmission 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 executing mechanism, the sun gear shaft is connected with the box body through the second executing mechanism, the vehicle is in a static state, and 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 gear ring, the planet gears and the planet carrier, and the engine is reversely towed through the transmission input shaft so as to start the engine;
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 executing mechanism, the sun gear shaft is connected with an intermediate gear of the gear shifting gear set through a third executing mechanism, the vehicle is in a static state, and 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 the engine is reversely towed through the transmission input shaft so as to start the engine;
the power transmission path of the third stop-generation mode is diametrically opposite to the power transmission path of the third start-up engine mode.
Optionally, the single-motor single-planetary-row multi-gear hybrid gearbox realizes a braking energy recovery mode when the fourth executing mechanism acts; the power transmission path of the braking energy recovery mode is: the EV transmission gear is connected with the EV shaft through the fourth actuating mechanism, and during braking, power input by the wheel components is transmitted to the EV main reduction gear through the differential mechanism, and is sequentially transmitted to the motor transmission gear and the motor input shaft through the EV shaft, the fourth actuating mechanism and the EV transmission gear, so that the motor is driven to generate power.
Optionally, the first executing mechanism, the second executing mechanism, the third executing mechanism and the fourth executing mechanism are synchronizers or clutches.
Based on the same inventive concept, the invention also provides a hybrid electric vehicle, which comprises the single-motor single-planetary-row multi-gear hybrid electric gearbox.
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 components is achieved through 4 actuating mechanisms. The single planet row needs to be integrally locked or the sun gear is locked in the gear shifting process, the sun gear, the planet gears/the planet carriers and the gear ring of the single planet row rotate together in an integral mode, the whole single planet row rotates together, the transmission ratio is 1, when the sun gear is locked, one of the gear ring and the planet carriers 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 planet row, the second actuating mechanism and the third actuating mechanism are arranged on the sun shaft of the single planet row, and through the actions and mutual matching of the three actuating mechanisms, the integral locking of the single planet row or the locking of the sun gear and the connection of each component in the single planet row with other gears or structures can be realized.
The single-motor single-planet-row multi-gear hybrid power gearbox is provided with a parallel shaft transmission mechanism, wherein the parallel shaft transmission mechanism comprises an intermediate shaft, a first transmission gear and a second transmission gear which are arranged on the intermediate shaft in parallel, the first transmission gear and the intermediate transmission gear are kept in a constant meshed state, and the second transmission gear and the intermediate gear of a gear shifting gear set are kept in a constant meshed state. Different power transmission paths between the single planetary gear and the gear shifting gear set are established through the parallel shaft transmission mechanism, so that the single-motor single planetary gear multi-gear hybrid gearbox provided by the invention can realize 2 ECVT modes, and the 2 ECVT modes can respectively realize low-speed and high-speed power split, so that the driving and the power generation of a vehicle are realized while the driving of the vehicle is realized.
The EV transmission mechanism is in a constant connection state with the intermediate transmission gear and the motor input shaft, a fourth execution mechanism is arranged in the EV transmission mechanism, and the EV transmission mechanism is selectively connected with the wheels through the fourth execution mechanism, so that the single-motor single-planetary-row multi-gear hybrid power gearbox provided by the invention can realize a plurality of 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 gearbox provided by the invention realizes selective connection among different components through 4 execution mechanisms, 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 split, and realize 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 gearbox in an embodiment of the invention.
Reference numerals illustrate: 100-a single-motor single-planet-row multi-gear hybrid gearbox; 10-a gearbox input shaft; 20-a motor input shaft, 21-a motor transmission gear; 30-single planet row, 31-sun gear, 32-sun gear shaft, 33-planet gear, 34-planet carrier and 35-gear ring; 40-parallel shaft transmission mechanism, 41-first transmission gear, 42-second transmission gear, 43-intermediate shaft; 50-a gear set, 51-a first gear, 52-a second gear, 53-an intermediate gear; 60-an output transmission mechanism, 61-a first gear shifting output gear, 62-a second gear shifting output gear, 63-a main reduction gear and 64-an output shaft; 70-EV transmission mechanism, 71-EV transmission gear, 72-EV main subtraction gear, 73-EV shaft; 80-an intermediate drive gear; 90-a box body; s1-a first executing mechanism, S2-a second executing mechanism, S3-a third executing mechanism and S4-a fourth executing mechanism; 200-an engine; 300-torsion limiting vibration damper; 400-motor; 500-differential.
Detailed Description
In order to make the technical solution more clearly understood by those skilled in the art, the following detailed description is made with reference to the accompanying drawings.
In order to solve the technical problems of few engine driving gears, few ECVT modes and the like in the related art, the single-motor single-planetary-row multi-gear hybrid gearbox provided by the invention has the advantages that 4 execution mechanisms are used for realizing selective connection among different components in a box body, a gearbox input shaft, a motor input shaft, a single planetary row, a parallel shaft transmission mechanism, a gear shifting gear set, an output transmission mechanism and an EV transmission mechanism, 6-gear engine driving can be realized, 3-gear engine starting can be realized, EV driving modes, 6-gear parallel driving can be realized, 3-gear parking power generation can be realized, and 2 ECVT modes can respectively realize low-speed and high-speed power split, so that driving and power generation can be realized while driving a vehicle can be realized. Has the advantages of simple structure and low cost. The technical problems existing in the related art can be solved. The following describes the technical scheme of the present invention in detail with reference to specific embodiments:
example 1:
the embodiment of the invention provides a single-motor single-planetary-row multi-gear hybrid gearbox 100, the structure of which is shown in fig. 1, and the whole gearbox comprises a box body 90, a gearbox 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 in the gearbox is generally arranged in the box body, and only the input shaft and the output shaft extend out of the box body. In this embodiment, the common configuration is adopted, that is, the single planetary row 30, the parallel shaft transmission mechanism 40, the gear shifting gear set 50, the output transmission mechanism 60, the EV transmission mechanism 70 and the 4 execution mechanisms are respectively encapsulated in the case 90, and the gearbox input shaft 10, the motor input shaft 20 and the output shaft 64 are all partially extended out of the case 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 between the above-mentioned members/components is specifically as follows:
the single planetary row 30 comprises a sun gear 31, a sun gear shaft 32, a planetary gear 33, a planetary carrier 34 and a gear ring 35, wherein the sun gear 31 is fixedly connected with the sun gear shaft 32, the planetary gear 33 is fixedly connected with the planetary carrier 34, and the sun gear 31, the planetary gear 33 and the gear ring 35 realize transmission and power split in a conventional meshing mode disclosed in the prior art.
In the present 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 torsion-limiting damper 300, and the output shaft of the torsion-limiting damper 300 is used as the transmission input shaft 10. The first actuator S1 is connected to the ring gear 35 of the single planetary gear set 30, and the ring gear 35 is selectively connected to the intermediate gear 80 or to the first shift gear 51 of the shift gear set 50 via the first actuator S1. In the present 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 gear shift set 50 are mounted on the sun gear shaft 32. The sun gear shaft 32 is selectively connected with the ring gear 35 or the case 90 through a second actuator S2; and the sun gear shaft 32 is selectively connectable with the intermediate gear 53 of the shift gear set 50 or the second shift gear 52 through the third actuator S3. It is understood that in other embodiments, the housing 90 may be equivalently used as other fixed and different structures of the vehicle body, such as a vehicle body frame of an engine compartment, etc.
The single planetary row 30 has three operating conditions during the shifting process: the integral locking, the sun gear being locked and the normal transmission, the integral locking working condition is that the sun gear 31, the planet gears 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 integrally and jointly, and the transmission ratio is 1; the sun gear is locked, i.e. the sun gear 31 and the box 90/body frame are kept relatively stationary and do not rotate at all, one of the ring gear 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 gear set is that the single planetary gear set 30 outputs torque at a set transmission ratio, and this condition 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 connected to the single row 30 cooperate with each other to realize the conversion of the single row 30 under the three working conditions and the connection of each member in the single row 30 with 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 mounted in parallel on the intermediate shaft 43, the first transmission gear 41 and the intermediate transmission gear 80 maintaining a constant mesh state, and the second transmission gear 42 and the intermediate gear 53 of the shift gear set 50 maintaining a constant mesh 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 gearbox 100 provided by the invention can realize 2 ECVT modes, and the 2 ECVT modes can respectively realize low-speed and high-speed power split, so that the driving and the power generation of a vehicle are realized while the driving of the vehicle is realized.
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 rotationally sleeved on the sun gear shaft 32 and the gear ring 35 of the single planet row 30, the second gear shifting gear 52 and the intermediate gear 53 are rotationally sleeved on the sun gear shaft 32 of the single planet 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 so as to output different gears, and the intermediate gear 53 and the second transmission gear 42 of the parallel shaft transmission mechanism 40 keep a constant meshed state, 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 the wheel components fixedly mounted on the output shaft 64, the first shift output gear 61 and the first shift gear 51 of the shift gear set 50 are kept in a normally meshed state, the second shift output gear 62 and the second shift gear 52 are kept in a normally meshed state, and the main reduction gear 63 and the input gear of the differential mechanism are kept in a normally meshed state for outputting the driving torque of the engine ICE.
The EV drive 70 is connected to the intermediate drive gear 80 and the motor input shaft 20, and the EV drive 70 is selectively connected to the wheel assembly through a fourth actuator S4. Referring to fig. 1, in the present embodiment, in order 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 drive gear 71 is kept in a constant mesh state with the intermediate drive gear 80 and the motor drive gear 21 provided on the motor input shaft 20, and the EV drive gear 71 is selectively connected with the EV shaft 73 through the fourth actuator S4; the EV main reducing gear 72 is connected to a differential gear constituted by wheels for outputting the driving torque of the motor EM 1.
Four execution mechanisms: the first executing mechanism S1, the second executing mechanism S2, the third executing mechanism S3 and the fourth executing mechanism S4 can be selected to adopt a synchronizer or a clutch, and if the synchronizer is adopted, the two-side synchronizer or the one-side synchronizer can be selected to be adopted. In combination with the multiple operation modes to be realized by the single-motor single-planetary-row multi-gear hybrid gearbox 100 in the present application, in this embodiment, the first executing mechanism S1, the second executing mechanism S2 and the third executing mechanism S3 are all double-sided synchronizers, and the fourth executing mechanism S4 is a single-sided synchronizer.
Therefore, the single-motor single-planet-row multi-gear hybrid gearbox 100 of the embodiment can realize 6-gear engine driving, 3-gear engine starting, EV driving modes, 6-gear parallel driving, 3-gear parking power generation, and 2 ECVT modes can respectively realize low-speed and high-speed power split, so that driving and power generation are realized while driving a vehicle.
The following describes in detail the various modes of operation of the single-motor single-planetary-row multi-speed hybrid transmission 100:
the 6-gear engine driving mode relies on the interaction among the four actuators S1, S2, S3, S4. The 6-gear engine driving modes are respectively as follows: an engine first gear mode, an engine second gear mode, an engine third gear mode, an engine fourth gear mode, an engine fifth gear mode and an engine sixth gear mode.
The power transmission path of the engine first gear mode is:
referring specifically to fig. 1, the first actuator S1 is moved 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 via the second actuator S2, and the row 30 is blocked. The power output from the engine 200 is transmitted to the wheels via the torque limiter damper 300, the transmission input shaft 10, the carrier 34, the sun gear 31, the sun gear shaft 32, the second actuator S2, the first shift gear 51, the first shift output gear 61, and the main reduction gear 63 in this order, and transmitted to the wheels via the differential 500.
The power transmission path of the engine second gear mode is:
referring specifically to fig. 1, the first actuator S1 is moved 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 by the second actuator S2, and the sun gear 31 is locked. The power output from the engine 200 is transmitted to the wheels via the torque limiter damper 300, the transmission input shaft 10, the 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 in this order, and transmitted to the wheels via the differential 500.
The power transmission path of the engine three-gear mode is:
referring specifically to fig. 1, the first actuator S1 is moved to the left so that the ring gear 35 is connected with the intermediate transmission gear 80 through 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 via the second actuator S2, and the row 30 is blocked. The power output from the engine 200 is transmitted to the wheels via the torque limiter damper 300, the transmission input shaft 10, the carrier 34, the sun gear 31, the sun gear shaft 32, the second actuator S2, the intermediate transmission gear 80, the EV transmission gear 71, the fourth actuator S4, the EV shaft 73, and the EV main reduction gear 72 in this order, and transmitted to the wheels via the differential 500.
The power transmission path of the engine four-gear mode is:
referring specifically to fig. 1, the first actuator S1 is moved to the left so that the ring gear 35 is connected with the intermediate transmission gear 80 through 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 by the second actuator S2, and the sun gear 31 is locked. The power output from the engine 200 is transmitted to the wheel assembly via the torque limiter damper 300, the transmission input shaft 10, the carrier 34, the planetary gears 33, the ring gear 35, the first actuator S1, the intermediate transmission gear 80, the EV transmission gear 71, the fourth actuator S4, the EV shaft 73, and the EV main reduction gear 72 in this order via the differential 500.
The power transmission path of the engine five-gear mode is:
referring specifically to fig. 1, the second actuator S2 is moved to the left so that the ring gear 35 is connected to the sun gear shaft 32 by the second actuator S2, and the row 30 is locked. The third actuator S3 is moved to the left so that the sun gear shaft 32 is connected with the intermediate gear 53 of the gear change gear set 50 via 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 from the engine 200 is transmitted to the wheel assembly via the differential 500 through the torsional damper 300, the transmission input shaft 10, the carrier 34, the sun gear 31, the sun gear shaft 32, the third actuator 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 actuator S4, the EV shaft 73, and the EV main reduction gear 72 in this order.
The power transmission path of the engine six-speed mode is:
referring specifically to fig. 1, the second actuator S2 is moved to the left so that the ring gear 35 is connected to the sun gear shaft 32 by the second actuator S2, and the row 30 is locked. The third actuator S3 is moved to the right so that the sun gear shaft 32 is connected with the second shift gear 52 of the shift gear set 50 via the third actuator S3. The power output from the engine 200 is transmitted to the wheels via the torque limiter damper 300, the transmission input shaft 10, the carrier 34, the sun gear 31, the sun gear shaft 32, the third actuator S3, the second shift gear 52, the second shift output gear 62, the output shaft 64, and the main reduction gear 63 in this order, and transmitted to the wheels via the differential 500.
For the drive mode, the single-motor single-planetary-row multi-speed hybrid transmission 100 of the present embodiment realizes the EV mode and the parallel mode when four actuators are operated.
The power transmission path in 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 actuator S4, the EV shaft 73 and the EV main subtracting gear 72, so that the pure electric driving mode is realized.
Referring specifically to fig. 1, in the parallel mode, the engine 200 and the motor 400 participate in driving the wheels at the same time, the engine operating range power transmission path is the same as the engine alone driving power transmission path, and the motor driving path is the same as the EV mode path, and both drive the wheels together. That is, the single-motor single-planetary-row multi-speed hybrid transmission 100 of the embodiment can realize 6-speed parallel drive.
The parallel mode power transmission path is:
the single-motor single-planetary-row multi-gear hybrid transmission 100 implements any one of the 6-gear engine drive modes; and the single-motor single-planetary-row multi-speed hybrid transmission 100 realizes the EV mode. Details refer to the detailed description of the above modes, and are not repeated here.
In the single-motor single-planetary-row multi-gear hybrid gearbox 100 of the embodiment, in the process of switching the engine driving mode from a certain gear to another gear, the double-sided synchronizers S1, S2 and S3 pass through the middle position, the gearbox is in a neutral gear at this time, engine power cannot be transmitted to the driving wheels, and in the process, the power interruption phenomenon of the automobile can occur. 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 rd, 4 th and 5 th gear to switch, thereby avoiding power interruption.
Referring to fig. 1, the power compensation mode is: when the single-motor single-planetary-row multi-gear hybrid transmission 100 is shifted among the engine three-gear mode, the engine four-gear mode, and the engine five-gear mode, and any one of the fourth actuators S4 is located at the intermediate position, the single-motor single-planetary-row multi-gear hybrid transmission 100 is controlled to operate in the parallel mode.
While in the driving mode, when the first executing mechanism S1 and the third executing mechanism S3 act, the single-motor single-planetary-row multi-gear hybrid gearbox 100 of the embodiment can also realize two power generation modes, specifically including a first ECVT mode and a second ECVT mode.
The power transmission path of the first ECVT mode is:
referring specifically to fig. 1, the first actuator S1 is moved to the right so that the ring gear 35 is connected with the first shift gear 51 through the first actuator S1. The third actuator S3 is moved to the left so that the sun gear shaft 32 is connected with the intermediate gear 53 of the gear change set 50 via the third actuator S3. The power output by the engine 200 sequentially passes through the torsion damper 300, the gearbox input shaft 10 and the planet carrier 34, and power split is realized in the single planet row 30 through the sun gear 31 and the gear ring 35, so that the motor 400 is driven to generate power while the vehicle is driven.
The driving wheel power transmission path is: the power output from the engine 200 is transmitted to the wheels via the torque limiter damper 300, the transmission input shaft 10, the carrier 34, the planetary gears 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 in this order, and transmitted to the wheels via the differential 500.
The driving power generation power transmission path is as follows: the power output by the engine 200 sequentially passes through the torsion damper 300, the gearbox input shaft 10, the planet carrier 34, the planet gears 33, the sun gear 31, the sun gear shaft 32, the third actuator 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 electricity 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 moved to the left so that the ring gear 35 is connected with the intermediate transmission gear 80 through the first actuator S1. The third actuator S3 is moved to the right so 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 sequentially passes through the torsion limiting damper 300, the gearbox input shaft 10 and the planet carrier 34, and power split is realized in the single planet row 30 through the sun gear 31 and the gear ring 35, so that driving is realized, and driving power generation is performed at the same time.
The driving wheel power transmission path is: the power output from the engine 200 is transmitted to the wheels via the torque limiter damper 300, the transmission input shaft 10, the carrier 34, the planetary gears 33, the sun gear 31, the sun gear shaft 32, the third actuator S3, the second shift gear 52, the second shift output gear 62, and the main reduction gear 63 in this order, and transmitted to the wheels via the differential 500.
The driving power generation power transmission path is as follows: the power output by the engine 200 sequentially passes through the torsion damper 300, the gearbox input shaft 10, the planet carrier 34, the planet gears 33, the gear ring 35, the first actuating mechanism S1, the intermediate transmission gear 80, the EV transmission gear 71 and the motor transmission gear 21, and drives the motor 400 to generate electricity through the motor input shaft 20.
The single-motor single-planetary-row multi-gear hybrid gearbox 100 provided in the embodiment realizes three engine starting modes when the first executing mechanism S1, the second executing mechanism S2 and the third executing mechanism S3 act: a first start engine mode, a second start engine mode, and a third start engine mode, and three park power generation modes: a first park generation mode, a second park generation mode, and a third park generation mode.
The power transmission path of the first start engine mode is:
referring specifically to fig. 1, the first actuator S1 is moved to the left so that the ring gear 35 is connected with the intermediate transmission gear 80 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 via the second actuator S2, so that the single planetary row 30 is locked. At this time, the motor 400 is at the P3 position, and the vehicle is at a standstill, and the power output from the motor 400 sequentially passes through the motor output shaft 64, the motor drive gear 21, the EV drive gear 71, the intermediate drive gear 80, the first actuator S1, the second actuator S2, and the single row 30, and reversely drags the engine 200 through the transmission input shaft 10 and the torsion damper 300, so that the engine 200 is started.
The power transmission path of the second start engine mode is:
referring specifically to fig. 1, the first actuator S1 is moved to the left so that the ring gear 35 is connected with the intermediate transmission gear 80 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, and the sun gear 31 is locked. At this time, the motor 400 is at the P3 position, and the vehicle is at a standstill, and the power output from the motor 400 sequentially passes through the motor output shaft 64, the motor drive gear 21, the EV drive gear 71, the intermediate drive gear 80, the first actuator S1, the ring gear 35, the planetary gear 33, and the carrier 34, and reversely drags the engine 200 through the transmission input shaft 10 and the torsion damper 300, so that the engine 200 is started.
The power transmission path of the third start engine mode is:
referring specifically to fig. 1, the second actuator S2 is moved 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. The third actuator S3 is moved to the left so that the sun gear shaft 32 is connected with the intermediate gear 53 of the gear change set 50 via the third actuator S3. At this time, the motor 400 is at the P3 position, and the vehicle is at a standstill, and the power output by the motor 400 reversely drags the engine 200 via the motor output shaft 64, the motor drive gear 21, the EV drive gear 71, the intermediate drive gear 80, the first drive gear 41, the intermediate shaft 43, the second drive gear 42, the intermediate gear 53, the third actuator S3, the sun gear shaft 32, and the single row 30 in order to start the engine 200 via the transmission input shaft 10 and the torsion damper 300.
The power transmission paths of the parking power generation mode and the starting engine mode are opposite, correspondingly, three parking power generation modes are also provided, the positions of the synchronizers in the 3 parking power generation modes are consistent with those in the 3 starting engine modes, and the power transmission paths are opposite. The method 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 of the third stop-generation mode is completely opposite to the power transmission path of the third start-engine mode. The detailed power transmission path is referred to herein as "power transmission path".
In addition, the single-motor single-planetary-row multi-gear hybrid transmission 100 provided in the present embodiment may also implement a braking energy recovery mode when the fourth actuator S4 is operated.
The power transmission path in the braking energy recovery mode is:
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, power input from the wheel assemblies is transmitted to the EV main reducing gear 72 via the differential 500, and is transmitted to the motor drive gear 21 and the motor input shaft 20 via the EV shaft 73, the fourth actuator S4, and the EV drive gear 71 in this order, to drive the motor 400 to generate power.
In various operation modes of the single-motor single-planetary-row multi-gear hybrid gearbox 100 provided in this embodiment, the following table is used for the movement operation of the 4 actuators S1, S2, S3, S4:
Figure BDA0003142254750000131
Figure BDA0003142254750000141
example 2:
based on the same inventive concept, the present embodiment provides a hybrid vehicle including the single-motor single-planetary-row multi-speed hybrid transmission 100 of embodiment 1 described above. Specifically, in the hybrid vehicle, the structure, connection relation, mounting position, and the like of other devices other than the structure of the hybrid transmission using the single-motor single-planetary-row multi-speed hybrid transmission 100 of the above embodiment 1 are referred to in the related art disclosure, 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. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

Claims (10)

1. A single motor single planet row multi-gear hybrid power gearbox is characterized in that: the transmission 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; wherein:
the planet carrier of the single planet row is connected with the input shaft of the gearbox; the gear ring of the single planet row is selectively connected with the intermediate transmission gear or a first shifting gear of the shifting gear set through a first executing 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 executing mechanism, and the sun gear shaft is selectively connected with a middle gear or a second gear shifting gear of the gear shifting gear set through a third executing mechanism;
the parallel shaft transmission mechanism comprises an intermediate shaft, and a first transmission gear and a second transmission gear which are parallelly arranged on the intermediate shaft, 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 connecting wheels, and the first gear shifting output gear and the second gear shifting output gear are respectively meshed with a first gear shifting gear and a second gear shifting gear of the gear shifting gear set;
the EV transmission mechanism is connected with the intermediate transmission gear and the motor input shaft, and 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 subtraction 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 is selectively connected with the EV shaft through the fourth actuating mechanism; the EV main subtracting gear is connected with a differential mechanism formed by wheels.
3. The single-motor single-planetary-row multi-speed hybrid transmission according to claim 2, wherein: the single-motor single-planet-row multi-gear hybrid power gearbox realizes a 6-gear engine driving mode when the four execution mechanisms act; wherein:
The power transmission path of the engine first gear mode is: the gear ring is connected with the first gear shifting gear through the first executing mechanism, the gear ring is connected with the sun gear shaft through the second executing mechanism, and power output by an engine is transmitted to the wheel assembly through the transmission 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 in sequence through the differential;
the power transmission path of the engine second gear mode is: the gear ring is connected with the first gear shifting gear through the first executing mechanism, the sun gear shaft is connected with the box body through the second executing mechanism, and power output by an engine is sequentially transmitted to the wheels 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 through the differential mechanism;
the power transmission path of the engine three-gear mode is: the gear ring is connected with the intermediate transmission gear through the first executing mechanism, the EV transmission gear is connected with the EV shaft through the fourth executing mechanism, the gear ring is connected with the sun gear shaft through the second executing mechanism, and power output by an engine is sequentially transmitted to the wheel assembly through the gearbox input shaft, the planet carrier, the sun gear shaft, the intermediate transmission gear, the EV shaft and the EV main subtracting gear;
The power transmission path of the engine four-gear mode is: the gear ring is connected with the intermediate transmission gear through the first executing mechanism, the EV transmission gear is connected with the EV shaft through the fourth executing mechanism, the sun gear shaft is connected with the box body through the second executing mechanism, and power output by the engine is sequentially transmitted to the wheels through the gearbox input shaft, the planet carrier, the gear ring, the intermediate transmission gear, the EV shaft and the EV main reduction gear through the differential mechanism;
the power transmission path of the engine five-gear mode is: 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 the fourth executing mechanism, and power output by an engine is sequentially transmitted to the wheel assembly 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 subtraction gear;
The power transmission path of the engine six-speed mode is: the gear ring is connected with the sun gear shaft through the second executing mechanism, the sun gear shaft is connected with a second gear shifting gear of the gear shifting gear set through a third executing mechanism, and power output by an engine is sequentially transmitted to the wheels 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 according to claim 3, wherein: the single-motor single-planet-row multi-gear hybrid power gearbox realizes an EV mode and a parallel mode when the four execution mechanisms act; wherein:
the EV mode power transmission path is: the EV transmission gear is connected with the EV shaft through the fourth actuating mechanism, and power output by a motor is sequentially transmitted to the wheel assembly through the motor input shaft, the motor transmission gear, the EV transmission gear, the fourth actuating mechanism, the EV shaft and the EV main subtracting gear through the differential;
The power transmission path of the parallel mode is as follows: the single-motor single-planet-row multi-gear hybrid gearbox realizes any one of the 6-gear engine driving modes; and the single-motor single-planetary-row multi-gear hybrid transmission achieves the EV mode.
5. The single-motor single-planetary-row multi-speed hybrid transmission according to claim 4, wherein: the single-motor single-planet-row multi-gear hybrid power gearbox realizes a power compensation mode when shifting gears among 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 gearbox 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 positioned at the middle position, controlling the single-motor single-planetary-row multi-gear hybrid power gearbox to operate in the parallel mode.
6. The single-motor single-planetary-row multi-speed hybrid transmission according to claim 2, wherein: the single-motor single-planet-row multi-gear hybrid power gearbox realizes a first ECVT mode and a second ECVT mode when the first executing mechanism and the third executing 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 executing mechanism, the sun gear shaft is connected with an intermediate gear of the gear shifting gear set through the third executing mechanism, power output by an engine sequentially passes through the transmission input shaft and the planet carrier, power split is realized in the single planet row through the sun gear and the gear ring, and the power split is sequentially transmitted to the wheel assembly through the first gear shifting output gear, the main reduction gear and the differential; 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 electricity 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 executing mechanism, the sun gear shaft is connected with a second shifting gear of the shifting gear set through a third executing mechanism, power output by an engine sequentially passes through the transmission input shaft and the planet carrier, power split is realized in the single row through the sun gear and the gear ring, and the power split is sequentially transmitted to the wheels through the second shifting gear, the second shifting output gear and the main reduction gear 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 drives the motor to generate electricity through the motor input shaft.
7. The single-motor single-planetary-row multi-speed hybrid transmission according to claim 2, wherein: the single-motor single-planet-row multi-gear hybrid gearbox realizes a first starting engine mode, a second starting engine mode and a third starting engine mode, and 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, the vehicle is in a static state, and 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 the engine is reversely towed through the transmission 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 executing mechanism, the sun gear shaft is connected with the box body through the second executing mechanism, the vehicle is in a static state, and 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 gears and the planet carrier, and the engine is reversely towed through the transmission input shaft so as to start the engine;
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 executing mechanism, the sun gear shaft is connected with an intermediate gear of the gear shifting gear set through a third executing mechanism, the vehicle is in a static state, and 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 the engine is reversely towed through the transmission input shaft so as to start the engine;
the power transmission path of the third stop-generation mode is diametrically opposite to the power transmission path of the third start-up engine mode.
8. The single-motor single-planetary-row multi-speed hybrid transmission according to claim 2, wherein: the single-motor single-planet-row multi-gear hybrid power gearbox realizes a braking energy recovery mode when the fourth actuating mechanism acts; the power transmission path of the braking energy recovery mode is: the EV transmission gear is connected with the EV shaft through the fourth actuating mechanism, and during braking, power input by the wheel components is transmitted to the EV main reduction gear through the differential mechanism, and is sequentially transmitted to the motor transmission gear and the motor input shaft through the EV shaft, the fourth actuating mechanism and the EV transmission gear, so that the motor is driven to generate power.
9. The single-motor single-planetary-row multi-speed hybrid transmission according to any one of claims 1-8, wherein: the first executing mechanism, the second executing mechanism, the third executing mechanism and the fourth executing mechanism are synchronizers or clutches.
10. A hybrid vehicle characterized in that: a single motor single planetary row multiple gear hybrid transmission comprising the single motor single planetary row multiple gear hybrid transmission of any one of claims 1-9.
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