Multi-mode hybrid power transmission system

A technology of hybrid power and transmission system, applied in the field of vehicle transmission system, can solve the problems of complex structure of hybrid power system, inability to realize different working conditions, and single working mode, so as to save petroleum fuel consumption, maintain efficient operation, and simplify structure Effect

Inactive Publication Date: 2018-07-06
江苏万马传动科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structure of the hybrid power system is complex, the cost is high, and the core technology is monopolized by several major foreign automobile companies. In order to overcome the above obstacles, accelerate the commercialization of electric vehicles, improve the economic performance of the vehicle, and reduce the emission of carbon dioxide and other pollutants , it is imperative to develop a range-extended hybrid
[0003] The purpose of the design of the hybrid transmission is to realize different working modes of the hybrid system, such as the motor alone work mode, the engine alone work mode, the engine and the electric motor work together, the power split mode, the regenerative braking mode and the parking charging mode. The hybrid power transmission system mainly includes various forms such as planetary gear type, straight tooth series-parallel type, and dual-motor type Planetary gear train mechanism; GM Cadillac CT6 adopts dual motors and three planetary gear train mechanisms, which can realize multiple working modes. Renault Automobile adopts double planetary gear train mechanism, which can realize infinitely variable speed through two motors, but the working mode is relatively single. Different operating conditions cannot be realized, so it is important to explore multi-mode planetary gear transmission systems

Method used

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Embodiment Construction

[0021] specific implementation plan

[0022] The mode switching process of the multi-mode hybrid power transmission system will be described in detail below in conjunction with the drawings and the present invention.

[0023] figure 1 It is a structural schematic diagram of a multi-mode hybrid power transmission system disclosed in the present invention, including: engine 1; ISG motor 2; engine reduction gear 3; brake B1 (4); first planetary gear train outer ring gear 5; Wheel 6; first planetary gear train planet carrier second planetary gear sun gear assembly 7; brake B2 (8); second planetary gear train outer ring gear 9; second planetary gear train planetary gear 10; second planetary gear train Outer ring gear output shaft assembly 11; motor reduction gear 12; brake B3 (13); clutch C1 (14); drive motor 15; motor controller 16; power battery 17; vehicle charger 18; charging plug 19. It is characterized in that: the clutch C1 (14) and the brake B3 (13) can complete the switc...

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Abstract

The invention relates to the field of vehicle systems, in particular to a multi-mode hybrid power transmission system. The multi-mode hybrid power transmission system comprises an engine, an ISG motor, a drive motor, a dual-planet-gear train, a clutch, brakes and a drive control system. The system is characterized in that the engine, the ISG motor and the drive motor in different working states can drive an automobile to travel in different working modes, different combination modes of the clutch and the brakes can guarantee different combinations of the externally-output torque of the engine,the externally-output torque of the ISG motor and the externally-output torque of the drive motor, and therefore different modes of the automobile are switched. The hybrid power transmission system is switched to a pure-electric mode so as to guarantee that the automobile travels efficiently and stably, the hybrid power transmission system is switched to a hybrid power low-speed operation mode soas to charge a power battery, meanwhile, the engine can be effectively controlled to start and stop, the kinetic energy generated in the braking process of the engine is recycled, the hybrid power transmission system is switched to a hybrid power high-speed mode so as to guarantee that the automobile travels safely and reliably, and meanwhile it can be guaranteed that the fuel consumption amountin the cruising process of the automobile is small. The whole transmission system can reduce the oil consumption and emission of the whole automobile and reduce vibration and noise of the whole automobile.

Description

technical field [0001] The invention relates to the field of vehicle transmission systems, in particular to a multi-mode hybrid power transmission system. Background technique [0002] With the continuous increase of the state's support for new energy vehicles and the rapid development of battery technology, new energy vehicles have become an inevitable trend in the future development of automobiles. Due to the low mileage of pure electric vehicles and the high cost of batteries, it is difficult to obtain them in my country in the short term. A large number of popularization, hybrid electric vehicles as a transitional product of pure electric vehicles, is an important breakthrough to solve the current energy crisis in our country. However, the structure of the hybrid power system is complex, the cost is high, and the core technology is monopolized by several major foreign automobile companies. In order to overcome the above obstacles, accelerate the commercialization of elect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/442B60K6/50B60K6/387B60W20/20B60W20/40B60W10/02B60W10/06B60W10/08B60W10/18
CPCB60K6/387B60K6/442B60K6/50B60W10/02B60W10/06B60W10/08B60W10/18B60W20/20B60W20/40Y02T10/62Y02T10/92
Inventor 张邦基盛继新张农陈志强艾志华邹杰邓炜窦思远
Owner 江苏万马传动科技有限公司
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