Hybrid power system

Abstract

The invention discloses a hybrid power system. The hybrid power system comprises a first driving motor, an engine, a clutch and a speed change device; the speed change device comprises a gear box body, a first input shaft, a first clutch transmission unit, a third clutch transmission unit, a second input shaft, a second clutch transmission unit, a fourth clutch transmission unit, an intermediate shaft, a fifth clutch transmission unit, a sixth clutch transmission unit, a gear reversing shaft, a seventh clutch transmission unit, an eighth clutch transmission unit, a ninth clutch transmission unit and an output shaft; the first input shaft is arranged in the gear box body; the first clutch transmission unit and the third clutch transmission unit are corresponding to the first input shaft; the second clutch transmission unit and the fourth clutch transmission unit are corresponding to the second input shaft; the fifth clutch transmission unit and the sixth clutch transmission unit are corresponding to the intermediate shaft; the seventh clutch transmission unit, the eighth clutch transmission unit and the ninth clutch transmission unit are corresponding to the gear reversing shaft. According to the hybrid power system, the longitudinal arrangement of the power system can be implemented, gears under the driving conditions are greatly increased, the engine can participate in vehicle reversing or can be used for independently driving the vehicle reversing, and accordingly the possibility of the operation of the engine in the high efficiency area is greatly improved and the application rage of a vehicle is greatly extended.

Description

technical field [0001] The invention relates to vehicle transmission system technology, in particular to a hybrid power system. Background technique [0002] Due to the advantages of zero emissions, pure electric vehicles are of great significance to improving global air quality, but limited by the level of battery technology, high manufacturing cost, small capacity, and long charging time, the application of pure electric vehicles is greatly restricted. [0003] For the problems existing in pure electric vehicles, the current general solution is to use the engine system and the motor system at the same time. According to the relationship between the engine system and the motor system, it is divided into a parallel hybrid system and a series power system. In the parallel hybrid system, the engine system and the electric motor system are connected in parallel, and both the engine system and the electric motor system can directly output power to the vehicle. In a series elect...

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Problems solved by technology

[0004] Due to the high cost of batteries, large volume and weight, it is impossible to install too many batteries for hybrid vehicles, so the engine must participate in driving to a large extent, and in current solutions, the engine cannot participate or be independent Drive the whole vehicle to reverse, which limits the range of use of the whole vehicle, and the engine participates in the drive, especially under the condition of independent drive, there are fewer gears. Since the efficiency of the engine is far lower than that of the motor, the overall efficiency of the hybrid system is reduced.

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