Power system of hybrid vehicle

Abstract

The invention discloses a power system of a hybrid vehicle. The power system comprises an input shaft arranged in a transmission housing, wherein one end of the input shaft is fixedly connected to anengine through a clutch and the other end of the input shaft is connected to an auxiliary motor which can control the input shaft to rotate; the input shaft is in transmission connection with a main reduction gear of a differential through a D gear assembly and an output assembly; and a D third-speed driven gear in the D gear assembly is a starting gear or a reverse gear which can be driven by theauxiliary motor or the engine. The power system of the hybrid vehicle mainly has the beneficial effects of simple structure and ingenious design. Since the D third-speed driven gear acts as the starting gear and the reverse gear under the forward and reverse rotation control of the engine or / and the auxiliary motor, a D first-speed gear, a D second-speed gear and a reverse gear set structure areomitted. The auxiliary motor drives the D third-speed driven gear to realize the reverse of the vehicle, and the auxiliary motor drives the D third-speed driven gear to realize the starting of the vehicle so as to simplify the overall structure of a transmission and improve the performance and endurance of the whole vehicle.

Description

technical field [0001] The present invention relates to the technical field of hybrid vehicles, in particular to a hybrid vehicle power system. Background technique [0002] With the world's energy shortage and the enhancement of people's awareness of environmental protection, safety, energy saving, and environmental protection have become the themes of automobile development. At the same time, due to the bottleneck of key technologies of pure electric vehicles and fuel cell vehicles, hybrid vehicles have become a timely choice. This option can achieve more satisfactory results. The research and development of electric vehicles involves many key technologies, including batteries, high-performance motors, power synthesis and control technology, integrated engine control, and so on. But all these research objects are realized with a good transmission system as the research object, so the choice of power synthesis method and structure mode is directly related to the positionin...

AI Technical Summary

Problems solved by technology

With the above structure, various combinations of hybrid power are realized and emissions are reduced, but the gear setting of the transmission is cumbersome. If this structure is added on the basis of the existing six-speed gear structure, the size of the transmission will inevitably be increased and the transmission will be increased. The vehicle load is increased, which affects the endurance performance of the car during driving

In addition, since the motor is installed close to the clutch, the structure of the clutch is complex and difficult to manufacture. When the motor fails, it may affect the clutch, and when the clutch fails, it will easily affect the motor.

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