CN117698401B - Driving transmission system of hybrid power vehicle - Google Patents
Driving transmission system of hybrid power vehicle Download PDFInfo
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- CN117698401B CN117698401B CN202410009441.1A CN202410009441A CN117698401B CN 117698401 B CN117698401 B CN 117698401B CN 202410009441 A CN202410009441 A CN 202410009441A CN 117698401 B CN117698401 B CN 117698401B
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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
- 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 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 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 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 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
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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
- 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 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 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 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
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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
- 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/44—Series-parallel type
- B60K6/442—Series-parallel switching type
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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
- 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 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 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
- B60K2006/381—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches characterized by driveline brakes
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- 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)
- Structure Of Transmissions (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
A hybrid power vehicle drive transmission system belongs to the technical field of hybrid power vehicles. The crankshaft of the engine is connected with a planet carrier through an input shaft, the planet carrier I is connected with an outer hub of a clutch II, inner hubs of the clutch I and the clutch II are connected with a sun gear II, and the sun gear II is connected with a rotor shaft of a motor I; the rotor shaft of the motor II is connected with the gear ring I, the sun wheel I is connected with the gear ring II and the outer hub of the clutch I, the sun wheel I is connected with the inner hub of the brake, the planet carrier II is connected with the driving gear, and the driving gear is meshed with the transmission gear on the output shaft; the first sun gear is meshed with the first planet gear, the first planet gear is connected with the first planet carrier, the first planet gear is meshed with the first gear ring, the second sun gear is meshed with the second planet gear, the second planet gear is connected with the second planet carrier, and the second planet gear is meshed with the second gear ring; the output shaft is connected with a rear end speed reducing mechanism or a vehicle rear axle speed changer mechanism. The transmission system has various working modes and has the characteristics of light weight, compact structure and low cost.
Description
Technical Field
The invention belongs to the technical field of hybrid vehicles, and particularly relates to a hybrid vehicle driving transmission system.
Background
The development of a driving system of a hybrid power vehicle relates to various new technologies, including key technologies such as hybrid power configuration analysis, parameter matching, energy saving analysis, battery technology, motor and electric control technology, and the like, and basically covers general key core technologies in the development process of new energy automobiles. The hybrid power vehicle driving transmission system mainly enables the engine to run in a high-efficiency area through control of the motor, so that the system efficiency of the whole vehicle is improved, and the hybrid power vehicle driving transmission system has the characteristics of light weight, compact structure, low cost and the like.
In various drive train schemes of hybrid vehicles, an engine and a motor of a hybrid power device in a parallel mode drive the vehicle in a mode of superposition of mechanical energy, and the engine and the motor can independently provide power for the vehicle, so that the vehicle can be driven jointly or independently under different working conditions or on road surfaces. However, the technical scheme has the defects that the multi-gear setting of a pure electric mode is not adopted, and the dynamic property and the high-speed economy are limited under pure electric mode; while the parallel mode is under-utilized for the high efficiency region of the engine and the shift process is relatively complex.
Disclosure of Invention
The present invention is directed to solving the above-mentioned problems occurring in the prior art by providing a hybrid vehicle drive train.
The hybrid vehicle drive transmission system provided by the invention has a pure electric mode, a parallel mode and a series-parallel mode; the working condition requirements of the vehicle can be combined, the corresponding working mode is selected to meet the working condition requirements of the vehicle, and meanwhile, the hybrid power vehicle drives the transmission system and the engine to be in an efficient working area.
The invention provides a pure electric mode of a hybrid electric vehicle drive transmission system, which is used for driving a motor to work by means of electric energy provided by a battery when an engine does not provide power and realizing normal running of the vehicle through a speed change transmission mechanism (comprising a planetary gear mechanism II, a clutch I, a brake, a drive gear and an output shaft). The pure electric mode has two gears, and the motor dynamic property and the economic performance can be fully exerted.
The parallel mode of the hybrid power vehicle driving transmission system can enable the engine to work independently, the power distribution mechanism (comprising the first planetary gear mechanism, the second planetary gear mechanism, the brake and the two clutches) and the variable speed transmission mechanism can normally transmit power to drive the whole vehicle to run, and meanwhile, the motor can be used for adjusting the working area of the engine to improve the efficiency of the engine.
The hybrid power vehicle of the invention drives a series-parallel mode (also called a series-parallel power split mode) of a transmission system, and an engine and a motor simultaneously participate in working to drive the vehicle to run; by controlling the corresponding motor to work, the working condition points of the torque and the rotating speed of the engine can be adjusted, so that the oil consumption of the engine is reduced.
In summary, during the running process of the vehicle, the fuel consumption of the automobile can be effectively saved through the switching of the working modes.
The technical scheme adopted by the invention is as follows:
a hybrid vehicle drive transmission system comprises an input shaft, a drive gear, an output shaft, an engine, a torsional damper, a brake, two planetary gear sets, two motors and two clutches; the two motors are a first motor and a second motor respectively, the two clutches are a first clutch and a second clutch respectively, the two planetary gear mechanisms are a first planetary gear mechanism and a second planetary gear mechanism respectively, the first planetary gear mechanism comprises a first sun gear, a first planet gear, a first gear ring and a first planet carrier, and the second planetary gear mechanism comprises a second sun gear, a second planet gear, a second gear ring and a second planet carrier;
The crankshaft of the engine is connected with one end of an input shaft, the other end of the input shaft is connected with a planet carrier, the planet carrier is connected with an outer hub of a clutch II, an inner hub of the clutch I and an inner hub of the clutch II are both connected with a sun gear II, and the sun gear II is connected with a rotor shaft of a motor I; the rotor shaft of the motor II is connected with the gear ring I, the sun wheel I is connected with the gear ring II and the outer hub of the clutch I, the sun wheel I is connected with the inner hub of the brake, and the outer hub of the brake is integrated with the inner wall of the transmission shell; the second planet carrier is connected with a driving gear which is meshed with a transmission gear on the output shaft; the first sun gear is meshed with the first planet gear, the first planet gear is connected with the first planet carrier, the first planet gear is meshed with the first gear ring, the second sun gear is meshed with the second planet gear, the second planet gear is connected with the second planet carrier, and the second planet gear is meshed with the second gear ring; the stators of the first motor and the second motor are fixedly arranged in the transmission shell.
Further, the hybrid vehicle drive train system further includes a torsional damper or a dual mass flywheel; a torsional damper or dual mass flywheel is connected between the one end of the input shaft and the crankshaft of the engine.
Further, the first clutch and the second clutch share one inner hub, or the first clutch and the second clutch are respectively provided with respective inner hubs, and the two inner hubs are connected through a spline or a welding mode.
Further, the hybrid vehicle driveline enables the following modes of operation:
pure electric mode first gear; the first clutch and the second clutch are disconnected, the brake is combined, the engine and the second motor do not work, and the first motor works;
Pure electric mode second gear; the second clutch and the brake are disconnected, the first clutch is combined, the engine and the second motor do not work, and the first motor works;
Parallel mode first gear; the first clutch is disconnected, the second clutch is combined with the brake, and the engine and the two motors work;
parallel mode second gear; the brake is disconnected, the first clutch is combined with the second clutch, and the engine and the two motors work;
a series mode; the first clutch and the second clutch are disconnected, the brake is combined, and the engine and the two motors work;
a series-parallel mode; the second clutch and the brake are disconnected, the first clutch is combined, and the engine and the two motors work;
Parking/stopping power generation mode; the first clutch and the second clutch are both disconnected, the brake is combined, the first motor does not work, and the engine and the second motor work.
Further, the power transmission path of the first gear in the pure mode is as follows: the brake is combined, the power of the vehicle is provided by the operation of a motor I, the power of the motor I is transmitted to a driving gear through a sun gear II, a planet gear II and a planet carrier II in sequence, and the driving gear is meshed with a transmission gear on an output shaft to transmit power and then output the power;
The power transmission path of the second gear in the pure mode is as follows: the first clutch is combined, and the power of the vehicle is provided by the first motor; the power of the motor I is transmitted to the driving gear through the sun gear II, the planet gear II, the gear ring II and the planet carrier II in sequence, and the driving gear is meshed with the transmission gear on the output shaft to transmit power and then output the power.
Further, the parallel mode first gear power transmission path is as follows: the second clutch and the brake are combined, the power of the engine is sequentially transmitted to the second planet carrier through the first input shaft, the first planet carrier, the second clutch, the second sun wheel and the second planet wheel, the second planet carrier is transmitted to the driving gear, and the driving gear is meshed with the transmission gear on the output shaft to transmit power and then output the power; the power of the motor II is transmitted to the planet wheel I and the planet carrier I through the gear ring I; after the power of the engine and the power of the motor II are connected in parallel at the first position of the planet carrier, the power is connected in parallel with the power of the motor I through the clutch II, and the power is transmitted to the sun gear II; the second sun gear sequentially transmits power to the second planet gear, the second planet carrier and the driving gear, and the driving gear is meshed with a transmission gear on the output shaft to transmit power and then output the power;
The power transmission path of the parallel mode second gear is as follows: the first clutch is combined with the second clutch, the first planet carrier is connected with the second sun gear through the second clutch, the first sun gear is connected with the second sun gear through the first clutch, and the first sun gear, the first planet wheel, the first gear ring, the first planet carrier, the second sun gear, the second planet wheel, the second gear ring and the second planet carrier are connected into the same rotating speed body according to the connection and the operation relation of the planet row; the power of the engine is sequentially transmitted to the driving gear through the input shaft, the first planet carrier, the second clutch, the second sun gear, the second planet gear and the second planet carrier, and the driving gear is meshed with the transmission gear on the output shaft to transmit power and then output the power; the power of the motor II is sequentially transmitted to the driving gear through the gear ring I, the planet wheel I and the sun wheel I, and the driving gear is meshed with the transmission gear on the output shaft to transmit power and then output the power; the power of the motor I is transmitted to the driving gear through the sun gear II, the planet gear II and the planet carrier II in sequence, and the driving gear is meshed with the transmission gear on the output shaft to transmit power and then output the power.
Further, the power transmission path of the series mode is as follows; the power of the vehicle is provided by the work of a motor I, the power of the motor I is transmitted to a driving gear through a sun gear II, a planet gear II and a planet carrier II in sequence, and the driving gear is meshed with a transmission gear on an output shaft to transmit power and then output the power; the brake is combined, the first sun gear is fixedly connected with the transmission shell, the power of the engine is sequentially transmitted to the second motor through the first input shaft, the first planet carrier, the first planet gear and the first gear ring, the second motor generates electricity, and the electric energy is transmitted to the first motor through an electric power route of the transmission.
Further, the power transmission path of the first gear in the series-parallel mode is as follows; the first clutch is combined, and the engine and the two motors work; the second gear ring is connected with the second sun gear through the first clutch, and the second sun gear, the second planet gear, the second gear ring and the second planet carrier run at the same rotating speed;
There are two control modes regarding the rotational speed: firstly, controlling the rotation speed of an engine and a motor, and secondly, controlling the rotation speed of the engine and the motor; part of power of the engine is transmitted to the motor II through the input shaft, the planet carrier I, the planet wheel I and the gear ring I in sequence; the other part of power of the engine is sequentially transmitted to the second sun gear, the second planet gear and the second planet carrier in parallel through the input shaft, the first planet carrier, the first planet gear and the first sun gear and the power of the first motor, and finally transmitted to the driving gear, and the driving gear is meshed with the transmission gear on the output shaft to transmit power and then output power; the power of the motor I is transmitted to a driving gear through a sun gear II, a planet gear II, a gear ring II and a planet carrier II, and the driving gear is meshed with a transmission gear on an output shaft to transmit power and then output the power;
Regarding torque: the torque of the engine sequentially passes through the input shaft, the first planet carrier and the first planet wheel; wherein, a part of torque is transmitted to a gear ring I and a motor II through a planet wheel I; the part of power is transmitted to a motor II for generating electricity, and the electric energy is transmitted to the motor I through the electric power transmission route of the transmission; the other part of torque is transmitted to the first sun gear through the first planet gear, and is transmitted to the driving gear in parallel with the power of the first motor through the second sun gear, the second planet gear, the second gear ring and the second planet carrier in sequence, and the driving gear is meshed with the transmission gear on the output shaft to transmit power and then outputs power;
further, the power transmission path of the parking/stopping power generation mode is as follows; when the vehicle is parked/stopped, the brake is combined, the engine is started through the motor II, and after the engine is successfully started, the power of the engine is sequentially transmitted to the planet wheel I, the gear ring I and the motor II through the planet carrier I, the motor II runs and generates electricity, and the mechanical energy is converted into electric energy.
Compared with the prior art, the invention has the beneficial effects that:
1. The structure is simple, the cost is relatively low, and the pure electric mode with two fixed gears, the parallel mode with two fixed gears, the serial mode and the shunt mode of series-parallel power are realized by adding two motors, two clutches and one brake based on the combination of a single planet row structure of the mature product in the market.
2. The two gear ratios are provided in the pure electric mode, so that the acceleration, the dynamic performance, the climbing performance and the economy of the pure electric mode are improved greatly.
3. The series-parallel power split mode can effectively improve the working condition of the engine, and can effectively solve the problems of fuel economy and dynamic performance of the vehicle in the whole working condition range by combining two fixed gears in parallel, so that the engine is always in a high-efficiency area, and the fuel consumption of the whole vehicle is excellent.
4. The hybrid vehicle drive transmission system of the invention has various working modes, namely a pure two-gear mode, a parallel two-gear mode, a series-parallel mode, a parking/power generation mode and the like. According to the vehicle demand, different working modes are selected, so that the high-efficiency running with strong pure electric power and economical efficiency can be realized. The series, parallel and series-parallel mixed working modes are used, so that the high-efficiency area of the engine can be furthest used under the condition of all working conditions of the vehicle; thereby improving the efficiency of the whole system and having the characteristics of low cost, light weight and compact structure.
Drawings
Fig. 1 is a schematic configuration diagram of a drive train of a hybrid vehicle according to the present invention, wherein C1 represents a first clutch, C2 represents a second clutch, and B1 represents a brake.
The component names and reference numerals related to the above figures are as follows:
The engine 1, the torsional damper 2, the motor two 3, the motor one 4, the clutch one 5, the clutch two 6, the brake 7, the sun gear one 9, the planet wheel one 10, the gear ring one 11, the planet carrier one 12, the sun gear two 13, the planet wheel two 14, the gear ring two 15, the planet carrier two 16, the input shaft 8, the driving gear 17, the output shaft 18, the transmission housing 19 and the transmission gear 20.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention are all within the protection scope of the present invention.
The first embodiment is as follows: as shown in fig. 1, the present embodiment discloses a hybrid vehicle drive transmission system including an input shaft 8, a drive gear 17, an output shaft 18, an engine 1, a torsional damper 2, a brake 7, two planetary gear mechanisms, two motors, and two clutches; the two motors are a first motor 4 and a second motor 3 respectively, the two clutches are a first clutch 5 and a second clutch 6 respectively, the two planetary gear mechanisms are a first planetary gear mechanism and a second planetary gear mechanism respectively, the first planetary gear mechanism comprises a first sun gear 9, a first planet gear 10, a first gear ring 11 (teeth are arranged on the inner ring surface of the first gear ring 11) and a first planet carrier 12, and the second planetary gear mechanism comprises a second sun gear 13, a second planet gear 14, a second gear ring 15 (teeth are arranged on the inner ring surface of the second gear ring 15) and a second planet carrier 16;
The crankshaft of the engine 1 is connected with one end of an input shaft 8, the other end of the input shaft 8 is connected with a first planet carrier 12, the first planet carrier 12 is connected with an outer hub of a second clutch 6, an inner hub of the first clutch 5 and an inner hub of the second clutch 6 are connected with a second sun gear 13, and the second sun gear 13 is connected with a rotor shaft of a first motor 4; the rotor shaft of the motor II 3 is connected with the gear ring I11, the sun gear I9 is connected with the gear ring II 15 and the outer hub of the clutch I5, the sun gear I9 is connected with the inner hub of the brake 7, and the outer hub of the brake 7 is integrated with the inner wall of the transmission shell 19; the second planet carrier 16 is connected with a driving gear 17, the driving gear 17 is meshed with a transmission gear 20 on an output shaft 18 (the output shaft 18 is connected with a rear end speed reducing mechanism or a rear axle speed changer mechanism of the vehicle to transmit power to wheels of the vehicle); the first sun gear 9 is meshed with the first planet gear 10, the first planet gear 10 is connected with the first planet carrier 12, the first planet gear 10 is meshed with the first gear ring 11, the second sun gear 13 is meshed with the second planet gear 14, the second planet gear 14 is connected with the second planet carrier 16, and the second planet gear 14 is meshed with the second gear ring 15; the stators of the first motor 4 and the second motor 3 are fixedly arranged in the transmission shell 19.
Further, the hybrid vehicle drive train further comprises a torsional damper 2 or a dual mass flywheel; a torsional vibration damper 2 or a dual mass flywheel is connected between the one end of the input shaft 8 and the crankshaft of the engine 1.
Further, the first clutch 5 and the second clutch 6 share one inner hub, or the first clutch 5 and the second clutch 6 are respectively provided with respective inner hubs, and the two inner hubs are connected through a spline or welding mode.
Further, the hybrid vehicle driveline enables the following modes of operation:
Pure electric mode first gear; the first clutch 5 and the second clutch 6 are disconnected, the brake 7 is combined, the engine 1 and the second motor 3 do not work, and the first motor 4 works;
Pure electric mode second gear; the clutch II 6 and the brake 7 are disconnected, the clutch I5 is combined, the engine 1 and the motor II 3 do not work, and the motor I4 works;
Parallel mode first gear; the first clutch 5 is disconnected, the second clutch 6 is combined with the brake 7, and the engine 1 and the two motors work;
Parallel mode second gear; the brake 7 is disconnected, the first clutch 5 and the second clutch 6 are combined, and the engine 1 and the two motors work;
A series mode; the first clutch 5 and the second clutch 6 are disconnected, the brake 7 is combined, and the engine 1 and the two motors work;
a series-parallel mode; the clutch II 6 and the brake 7 are disconnected, the clutch I5 is combined, and the engine 1 and the two motors work;
Parking/stopping power generation mode; the first clutch 5 and the second clutch 6 are both disconnected, the brake 7 is combined, the first motor 4 does not work, and the engine 1 and the second motor 3 work.
Further, the power transmission path of the first gear (both clutches are off, brake 7 is engaged, neither engine 1 nor motor 3 is operated, motor one 4 is operated, and motor two 5 is not operated) in the pure electric mode is as follows: the brake 7 is combined, the power of the vehicle is provided by the operation of the motor I4 (because the motor I4 is fixedly connected with the sun gear II 13, the sun gear II 13 is meshed with the planet gear II 14 for power transmission, and because the brake 7 is combined, the gear ring II 15 is fixedly connected with the inner wall of the transmission shell 19), the power of the motor I4 is sequentially transmitted to the driving gear 17 through the sun gear II 13, the planet gear II 14 and the planet carrier II 16, and the driving gear 17 is meshed with the transmission gear 20 on the output shaft 18 for power output after power transmission;
in the pure electric mode, the motor I4 is subjected to two-stage deceleration, and the first-stage deceleration is realized by the sun gear II 13, the planet gear II 14 and the planet carrier II 16; the secondary reduction is achieved by the drive gear 17 meshing with a transfer gear 20 on the output shaft 18. The output shaft 18 may be connected to a rear end reduction mechanism or to a rear axle transmission mechanism, and power is then delivered to the wheels of the vehicle. According to the speed and torque requirements of the vehicle, the working point of the first motor 4 is adjusted to meet the vehicle requirements, and the power performance of the vehicle can be improved. Because the motor I4 has the forward and reverse running characteristics, the forward and reverse functions of the vehicle pure electric mode can be realized according to the vehicle demand condition.
The power transmission path of the second gear in the pure electric mode (the clutch two 6 and the brake 7 are both disconnected, the clutch one 5 is engaged, the engine 1 and the motor two 3 are both not operated, and only the motor one 4 is operated) is as follows: the clutch I5 is combined, the power of the vehicle is provided by the operation of the motor I4 (because the outer hub of the clutch I5 is connected with the gear ring II 15, the inner hub of the clutch I5 is connected with the sun gear II 13, and the sun gear II 13, the planet wheel II 14, the gear ring II 15 and the planet carrier II 16 run at the same rotation speed by combining the running characteristic of a planet row, and because the motor I4 is fixedly connected with the sun gear II 13, the planet carrier II 16 is fixedly connected with the driving gear 17); the power of the motor I4 is transmitted to the driving gear 17 through the sun gear II 13, the planet gear II 14, the gear ring II 15 and the planet carrier II 16 in sequence, and the driving gear 17 is meshed with the transmission gear 20 on the output shaft 18 to transmit power and then output power.
Pure electric mode first gear and pure electric the mode two is different in that: the first gear of the pure electric mode and the second gear of the pure electric mode are powered by the first motor 4 and drive the vehicle to run, the difference is that the first gear of the pure electric mode is that the first motor 4 and the drive gear 17 realize a speed-reducing and torque-increasing speed ratio relation through a planetary gear mechanism, the vehicle is suitable for low-speed and medium-speed working condition operation stages in whole vehicle adaptation, and better vehicle dynamic property can be provided; and in the second gear of the pure electric mode, the first motor 4 and the driving gear 17 realize the speed ratio relation of the same rotating speed through a planetary gear mechanism. The motor speed can be effectively reduced, the motor operation efficiency interval can be improved, and the energy conservation and consumption reduction can be realized under the condition that the vehicle requirement is met.
Further, the power transmission path of the parallel mode first gear (the first clutch 5 is disengaged, the second clutch 6 and the brake 7 are both engaged, and the engine 1 and both motors are operated) is as follows: the clutch II 6 and the brake 7 are combined (the power of the vehicle is mainly provided by the operation of the engine 1), the power of the engine 1 is sequentially transmitted to the planet carrier II 16 through the input shaft 8, the planet carrier I12, the clutch II 6, the sun gear II 13 and the planet gear II 14, the planet carrier II 16 is transmitted to the driving gear 17, and the driving gear 17 is meshed with the transmission gear 20 on the output shaft 18 to transmit power and then output power; the power of the motor II 3 is transmitted to the planet wheel I10 and the planet carrier I12 through the gear ring I11; after the power of the engine 1 and the power of the motor II 3 are connected in parallel at the first planet carrier 12, the power of the motor I4 is connected in parallel through the clutch II 6 (because the motor I4 is fixedly connected with the sun gear II 13), and the power is transmitted to the sun gear II 13 (the planet carrier II 16 is fixedly connected with the driving gear 17); the second sun gear 13 sequentially transmits power to the second planet gear 14, the second planet carrier 16 and the driving gear 17, and the driving gear 17 is meshed with the transmission gear 20 on the output shaft 18 to transmit power and then output power;
Use of engine alone (motor one 19 is selectively powered/unpowered by control): the power of the engine 1 is transmitted to a driving gear 17 through an input shaft 8, a first planet carrier 12, a second clutch 6, a second sun gear 13, a second planet gear 14 and a second planet carrier 16 in sequence, and the driving gear 17 is meshed with a transmission gear 20 on an output shaft 18 to transmit power and then output the power;
The power transmission path of the parallel mode second gear (brake 7 is off, clutch one 5 and clutch two 6 are both engaged, engine 1 and both motors are operated) is as follows: the first clutch 5 and the second clutch 6 are combined, the first planet carrier 12 is connected with the second sun gear 13 through the second clutch 6, the first sun gear 9 is connected with the second sun gear 13 through the first clutch 5, and according to the connection and operation relation of the planet row, the first sun gear 9, the first planet gear 10, the first gear ring 11 and the first planet carrier 12 are connected with the second sun gear 13, the second planet gear 14, the second gear ring 15 and the second planet carrier 16 to form the same rotating speed body; the power of the engine 1 is transmitted to a driving gear 17 through an input shaft 8, a first planet carrier 12, a second clutch 6, a second sun gear 13, a second planet gear 14 and a second planet carrier 16 in sequence, and the driving gear 17 is meshed with a transmission gear 20 on an output shaft 18 to transmit power and then output power; the power of the motor II 3 is transmitted to the driving gear 17 through the gear ring I11, the planet wheel I10 and the sun wheel I9 in sequence, and the driving gear 17 is meshed with the transmission gear 20 on the output shaft 18 to transmit power and then output power; the power of the motor I4 is transmitted to the driving gear 17 through the sun gear II 13, the planet gear II 14 and the planet carrier II 16 in sequence, and the driving gear 17 is meshed with the transmission gear 20 on the output shaft 18 to transmit power and then output power.
The first gear and the second gear of the parallel mode are different in that: the power transmission paths of the engine 1 are different, and the speed ratios of the engine 1 to the second carrier 16 and the drive gear 17 are different. The corresponding speed ratio can be selected to meet the vehicle requirement, and the working condition of the engine 1 is adjusted to ensure that the engine 1 is in a better fuel consumption area.
Further, the power transmission path of the series mode (both clutches are off, the brake 7 is engaged, the engine 1 and both motors are operated) is as follows; the power of the vehicle is provided by the operation of a motor I4 (because the motor I4 is fixedly connected with a sun gear II 13, the sun gear II 13 is meshed with a planet gear II 14 for power transmission, and because a brake 7 is combined, a gear ring II 15 is fixedly connected with the inner wall of a transmission shell 19), the power of the motor I4 is sequentially transmitted to a driving gear 17 through the sun gear II 13, the planet gear II 14 and a planet carrier II 16, and the driving gear 17 is meshed with a transmission gear 20 on an output shaft 18 for power output after power transmission; the brake 7 is combined, the first sun gear 9 is fixedly connected with the transmission shell 19, the power of the engine 1 is sequentially transmitted to the second motor 3 through the input shaft 8, the first planet carrier 12, the first planet gear 10 and the first gear ring 11, the second motor 3 generates electricity, and the electric energy is transmitted to the first motor 4 through the electric power route of the transmission.
Further, the power transmission path of the series-parallel mode first gear (the clutch two 6 and the brake 7 are both disconnected, the clutch one 5 is combined, and the engine 1 and the two motors work) is as follows; the first clutch 5 is combined, and the engine 1 and the two motors work; the second gear ring 15 is connected with the second sun gear 13 through the first clutch 5, and the second sun gear 13, the second planet gear 14, the second gear ring 15 and the second planet carrier 16 run at the same rotation speed by combining the planet row running principle;
there are two control modes regarding the rotational speed (according to the planetary gear set running characteristics): firstly, controlling the rotation speeds of an engine 1 and a motor II 3, and secondly, controlling the rotation speeds of the engine 1 and the motor I4; part of power of the engine 1 is transmitted to the motor II 3 through the input shaft 8, the planet carrier I12, the planet wheel I10 and the gear ring I11 in sequence; the other part of power of the engine 1 is sequentially transmitted to a second sun gear 13, a second planet gear 14 and a second planet gear 16 in parallel through the power of an input shaft 8, a first planet gear 12, a first planet gear 10, a first sun gear 9 and a first motor 4, and finally transmitted to a driving gear 17, and the driving gear 17 is meshed with a transmission gear 20 on an output shaft 18 to transmit power and then outputs power; the power of the motor I4 is transmitted to the driving gear 17 through the sun gear II 13, the planet gear II 14, the gear ring II 15 and the planet carrier II 16, and the driving gear 17 is meshed with the transmission gear 20 on the output shaft 18 to transmit power and then output power;
Regarding torque (according to the characteristics of the planetary row): the torque of the engine 1 sequentially passes through an input shaft 8, a first planet carrier 12 and a first planet wheel 10; wherein a part of torque is transmitted to a gear ring I11 and a motor II 3 through a planet wheel I10; the part of power is transmitted to the motor II 3 for generating electricity, and the electric energy is transmitted to the motor I4 through the electric power transmission route of the transmission; the other part of torque is transmitted to a first sun gear 9 through a first planet gear 10, and is transmitted to a driving gear 17 in parallel with the power of a first motor 4 through the power of a second sun gear 13, a second planet gear 14, a second gear ring 15 and a second planet carrier 16 in sequence, and the driving gear 17 is meshed with a transmission gear 20 on an output shaft 18 to transmit power and then outputs the power;
This power split mode is also referred to as a relative continuity relationship between the engine 1 and the vehicle speed due to the rotational speed of the engine 1 being affected by the rotational speed of the motor one 4 or motor two 3.
In the present invention, for the series-parallel mode, i.e., the power split mode, the vehicle demand and the rotational speed of the engine 1, the torque adjustment control strategy are briefly described: in general, the motor I4 is used as a driving motor, and the motor II 3 is used as a generating motor; the required speed and the required torque of the vehicle are used as input quantities, the rotation speed of the motor I4 can be calculated for the rotation speed of each power source (comprising the engine 1 and two motors), the rotation speed of the engine 1 is preset according to the high-efficiency area, and the rotation speed of the motor II 3 can be calculated. For the torque of each power source, the vehicle demand torque is formed by the torque generated by the motor I4 and the engine 1, the engine 1 transmits the torque to the gear ring I11 and the output shaft 18 through the planetary gear mechanism according to the preset torque of the high-efficiency area, namely the vehicle side, and the motor II 3 generates power and then provides electric energy for the motor I4 through the DC/DC converter.
Further, the power transmission paths of the parking/stopping power generation mode (the first clutch 5 and the second clutch 6 are both disconnected, the brake 7 is engaged, the first motor 4 is not operated, and the engine 1 and the second motor 3 are both operated) are as follows;
when the vehicle is parked/stopped, the brake 7 is combined, the engine 1 is started through the motor two 3, after the engine 1 is successfully started, the power of the engine 1 is sequentially transmitted to the planet wheel one 10, the gear ring one 11 and the motor two 3 through the planet carrier one 12, the motor two 3 runs and generates electricity, and mechanical energy is converted into electric energy (the electric energy is distributed into a battery system (as external equipment) through an energy management system (as external equipment)), so that a battery charging function is realized.
The hybrid vehicle drive train of the present invention is capable of implementing the following modes of operation: as shown in table 1;
In addition, the invention adopts pure mode reverse gear for reverse gear mode, and controls the forward and reverse rotation of the motor to realize the reverse gear function of the vehicle according to the running characteristic of the motor.
The hybrid power vehicle drive transmission system can realize various hybrid working modes and has the advantages of simple structure, convenient arrangement, strong expansibility, lower cost and the like; through the configured planetary gear system (planetary gear train), the working interval of the engine can be optimized, and the economy and the fuel consumption of the whole vehicle of the engine are improved; the two-gear mode of pure electric provides good power performance and economy of pure electric running for the vehicle; the combination of parallel connection and series-parallel connection modes can maximally use the high-efficiency area of the engine, improve the fuel economy of the engine, and simultaneously participate in driving the engine and the motor, thereby improving the dynamic property and the working area of the engine.
The above embodiments are only illustrative of the present patent and do not limit the protection scope thereof, and those skilled in the art can also change the parts thereof, which are within the protection scope of the present patent without exceeding the spirit of the present patent.
Claims (8)
1. A hybrid vehicle drive train, characterized by: the device comprises an input shaft (8), a driving gear (17), an output shaft (18), an engine (1), a torsional damper (2), a brake (7), two planetary gear mechanisms, two motors and two clutches; the two motors are a first motor (4) and a second motor (3), the two clutches are a first clutch (5) and a second clutch (6), the two planetary gear mechanisms are a first planetary gear mechanism and a second planetary gear mechanism, the first planetary gear mechanism comprises a first sun gear (9), a first planet gear (10), a first gear ring (11) and a first planet carrier (12), and the second planetary gear mechanism comprises a second sun gear (13), a second planet gear (14), a second gear ring (15) and a second planet carrier (16);
The crankshaft of the engine (1) is connected with one end of an input shaft (8), the other end of the input shaft (8) is connected with a first planet carrier (12), the first planet carrier (12) is connected with an outer hub of a second clutch (6), an inner hub of the first clutch (5) and an inner hub of the second clutch (6) are connected with a second sun gear (13), and the second sun gear (13) is connected with a rotor shaft of the first motor (4); the rotor shaft of the motor II (3) is connected with the gear ring I (11), the sun gear I (9) is connected with the gear ring II (15) and the outer hub of the clutch I (5), the sun gear I (9) is connected with the inner hub of the brake (7), and the outer hub of the brake (7) is integrated with the inner wall of the transmission shell (19); the second planet carrier (16) is connected with a driving gear (17), and the driving gear (17) is meshed with a transmission gear (20) on an output shaft (18); the first sun gear (9) is meshed with the first planet gear (10), the first planet gear (10) is connected with the first planet carrier (12), the first planet gear (10) is meshed with the first gear ring (11), the second sun gear (13) is meshed with the second planet gear (14), the second planet gear (14) is connected with the second planet carrier (16), and the second planet gear (14) is meshed with the second gear ring (15); the stators of the first motor (4) and the second motor (3) are fixedly arranged in a transmission shell (19); the hybrid vehicle drive train enables the following modes of operation:
pure electric mode first gear; the clutch I (5) and the clutch II (6) are disconnected, the brake (7) is combined, the engine (1) and the motor II (3) do not work, and the motor I (4) works;
Pure electric mode second gear; the clutch II (6) and the brake (7) are disconnected, the clutch I (5) is combined, the engine (1) and the motor II (3) do not work, and the motor I (4) works;
parallel mode first gear; the clutch I (5) is disconnected, the clutch II (6) and the brake (7) are combined, and the engine (1) and the two motors work;
Parallel mode second gear; the brake (7) is disconnected, the first clutch (5) and the second clutch (6) are combined, and the engine (1) and the two motors work;
a series mode; the first clutch (5) and the second clutch (6) are disconnected, the brake (7) is combined, and the engine (1) and the two motors work;
A series-parallel mode; the clutch II (6) and the brake (7) are disconnected, the clutch I (5) is combined, and the engine (1) and the two motors work;
Parking/stopping power generation mode; the first clutch (5) and the second clutch (6) are disconnected, the brake (7) is combined, the first motor (4) does not work, and the engine (1) and the second motor (3) work.
2. A hybrid vehicle drive train as set forth in claim 1, wherein: the hybrid vehicle drive train further comprises a torsional damper (2) or a dual mass flywheel; a torsional vibration damper (2) or a dual mass flywheel is connected between the one end of the input shaft (8) and the crankshaft of the engine (1).
3. A hybrid vehicle drive train as set forth in claim 1, wherein: the clutch I (5) and the clutch II (6) share one inner hub, or the clutch I (5) and the clutch II (6) are respectively provided with respective inner hubs, and the two inner hubs are connected in a spline or welding mode.
4. A hybrid vehicle drive train as set forth in claim 1, wherein: the power transmission path of the first gear in the pure mode is as follows: the brake (7) is combined, the power of the vehicle is provided by the operation of the motor I (4), the power of the motor I (4) is sequentially transmitted to the driving gear (17) through the sun gear II (13), the planet gear II (14) and the planet carrier II (16), and the driving gear (17) is meshed with the transmission gear (20) on the output shaft (18) to transmit power and then output the power;
The power transmission path of the second gear in the pure mode is as follows: the clutch I (5) is combined, and the power of the vehicle is provided by the operation of the motor I (4); the power of the motor I (4) is transmitted to the driving gear (17) through the sun gear II (13), the planet gear II (14), the gear ring II (15) and the planet carrier II (16) in sequence, and the driving gear (17) is meshed with the transmission gear (20) on the output shaft (18) to transmit power and then output power.
5. A hybrid vehicle drive train as set forth in claim 1, wherein: the parallel mode first gear power transmission path is as follows: the clutch II (6) and the brake (7) are combined, the power of the engine (1) is sequentially transmitted to the planet carrier II (16) through the input shaft (8), the planet carrier I (12), the clutch II (6), the sun gear II (13) and the planet gear II (14), the planet carrier II (16) is transmitted to the driving gear (17), and the driving gear (17) is meshed with the transmission gear (20) on the output shaft (18) to transmit power and then output power; the power of the motor II (3) is transmitted to the planet wheel I (10) and the planet carrier I (12) through the gear ring I (11); after the power of the engine (1) and the power of the motor II (3) are connected in parallel at the first planet carrier (12), the power is connected in parallel with the power of the motor I (4) through the clutch II (6) and is transmitted to the sun gear II (13); the second sun gear (13) sequentially transmits power to the second planet gear (14), the second planet carrier (16) and the driving gear (17), and the driving gear (17) is meshed with a transmission gear (20) on the output shaft (18) to transmit power and then outputs power;
The power transmission path of the parallel mode second gear is as follows: the first clutch (5) and the second clutch (6) are combined, the first planet carrier (12) is connected with the second sun gear (13) through the second clutch (6), the first sun gear (9) is connected with the second sun gear (13) through the first clutch (5), and the first sun gear (9), the first planet gear (10), the first gear ring (11) and the first planet carrier (12) are connected with the second sun gear (13), the second planet gear (14), the second gear ring (15) and the second planet carrier (16) to form the same rotating speed body; the power of the engine (1) is sequentially transmitted to a driving gear (17) through an input shaft (8), a first planet carrier (12), a second clutch (6), a second sun gear (13), a second planet gear (14) and a second planet carrier (16), and the driving gear (17) is meshed with a transmission gear (20) on an output shaft (18) to transmit power and then outputs power; the power of the motor II (3) is transmitted to the driving gear (17) through the gear ring I (11), the planet wheel I (10) and the sun wheel I (9) in sequence, and the driving gear (17) is meshed with the transmission gear (20) on the output shaft (18) to transmit power and then outputs the power; the power of the motor I (4) is transmitted to the driving gear (17) through the sun gear II (13), the planet gear II (14) and the planet carrier II (16) in sequence, and the driving gear (17) is meshed with the transmission gear (20) on the output shaft (18) to transmit power and then output power.
6. A hybrid vehicle drive train as set forth in claim 1, wherein: the power transmission path of the series mode is as follows;
the power of the vehicle is provided by the operation of a motor I (4), the power of the motor I (4) is sequentially transmitted to a driving gear (17) through a sun gear II (13), a planet gear II (14) and a planet carrier II (16), and the driving gear (17) is meshed with a transmission gear (20) on an output shaft (18) to transmit power and then output the power; the brake (7) is combined, the sun gear I (9) is fixedly connected with the transmission shell (19), power of the engine (1) is sequentially transmitted to the motor II (3) through the input shaft (8), the planet carrier I (12), the planet wheel I (10) and the gear ring I (11), the motor II (3) generates electricity, and electric energy is transmitted to the motor I (4) through an electric power route of the transmission.
7. A hybrid vehicle drive train as set forth in claim 1, wherein: series-parallel mode first gear the power transmission path is as follows;
The first clutch (5) is combined, and the engine (1) and the two motors work; the second gear ring (15) is connected with the second sun gear (13) through the first clutch (5), and the second sun gear (13), the second planet gear (14), the second gear ring (15) and the second planet carrier (16) run at the same rotating speed;
There are two control modes regarding the rotational speed: firstly, controlling the rotation speeds of an engine (1) and a motor II (3), and secondly, controlling the rotation speeds of the engine (1) and the motor I (4); part of power of the engine (1) is transmitted to the motor II (3) through the input shaft (8), the planet carrier I (12), the planet wheel I (10) and the gear ring I (11) in sequence; the other part of power of the engine (1) is sequentially transmitted to a second sun gear (13), a second planet gear (14) and a second planet carrier (16) in parallel through the power of an input shaft (8), a first planet carrier (12), a first planet gear (10) and a first sun gear (9) and a first motor (4), and finally transmitted to a driving gear (17), and the driving gear (17) is meshed with a transmission gear (20) on an output shaft (18) to transmit power and then output power; the power of the motor I (4) is transmitted to a driving gear (17) through a sun gear II (13), a planet gear II (14), a gear ring II (15) and a planet carrier II (16), and the driving gear (17) is meshed with a transmission gear (20) on an output shaft (18) to transmit power and then output power;
Regarding torque: the torque of the engine (1) sequentially passes through the input shaft (8), the first planet carrier (12) and the first planet wheel (10); wherein, a part of torque is transmitted to a first gear ring (11) and a second motor (3) through a first planetary gear (10); the part of power is transmitted to the motor II (3) for generating electricity, and the electric energy is transmitted to the motor I (4) through the electric power transmission route of the transmission;
The other part of torque is transmitted to the first sun gear (9) through the first planet gear (10), and is transmitted to the driving gear (17) in parallel with the power of the first motor (4) through the power of the second sun gear (13), the second planet gear (14), the second gear ring (15) and the second planet carrier (16), and the driving gear (17) is meshed with the transmission gear (20) on the output shaft (18) to transmit power and then outputs power.
8. A hybrid vehicle drive train as set forth in claim 1, wherein: the power transmission path of the parking/stopping power generation mode is as follows;
When the vehicle is parked/stopped, the brake 7 is combined, the engine (1) is started through the motor II (3), and after the engine (1) is successfully started, the power of the engine (1) is sequentially transmitted to the planet wheel I (10), the gear ring I (11) and the motor II (3) through the planet carrier I (12), and the motor II (3) runs and generates electricity to convert mechanical energy into electric energy.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106671766A (en) * | 2017-03-08 | 2017-05-17 | 重庆青山工业有限责任公司 | Plug-in hybrid automobile transmission system |
| CN110466339A (en) * | 2019-09-04 | 2019-11-19 | 哈尔滨东安汽车发动机制造有限公司 | A kind of hybrid gearbox dynamical system and its working method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT514323B1 (en) * | 2013-12-20 | 2014-12-15 | Avl List Gmbh | Five-shaft planetary transmission |
| DE102014221600B3 (en) * | 2014-10-23 | 2016-03-10 | Schaeffler Technologies AG & Co. KG | Transmission structure for a hybrid drive of a motor vehicle and hybrid drive |
| CN114953969A (en) * | 2022-05-31 | 2022-08-30 | 哈尔滨东安汽车发动机制造有限公司 | Multi-gear driving system of hybrid power vehicle |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106671766A (en) * | 2017-03-08 | 2017-05-17 | 重庆青山工业有限责任公司 | Plug-in hybrid automobile transmission system |
| CN110466339A (en) * | 2019-09-04 | 2019-11-19 | 哈尔滨东安汽车发动机制造有限公司 | A kind of hybrid gearbox dynamical system and its working method |
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