Four-gear transmission power system based on hybrid power

Abstract

The invention discloses a four-gear transmission power system based on hybrid power. The four-gear transmission power system based on the hybrid power comprises a differential mechanism; a main reduction gear of the differential mechanism can be driven by a hybrid driving component and / or a pure electric driving component; the hybrid driving component at least comprises an input shaft, a first output shaft and a second output shaft which are parallel to each other; the input shaft is in transmission connection with the first output shaft and the second output shaft through D gear components; one end of the input shaft is coaxially connected with an engine through a separating clutch; the other end of the input shaft is in transmission connection with an auxiliary motor through a transmission component; and the central axis of the auxiliary motor and the central axis of the engine are arranged in an offset manner and are not positioned on the same axis. The four-gear transmission powersystem based on the hybrid power has the beneficial effects that the structure is simple, the design is exquisite, the auxiliary motor is offset and is not positioned on the same axis with the engine;through adoption of the transmission component, a rotation speed, torque and the like desired by a reversing drag engine are satisfied; the auxiliary motor with smaller specification can be selected;the cost is reduced; and meanwhile, the design layout is convenient, and the layout is more reasonable.

Description

technical field [0001] The invention relates to the technical field of hybrid electric vehicles, in particular to a hybrid-based four-speed transmission 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 rel...

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, the coaxial design of the motor and the engine in the above-mentioned patents means that the motor needs to be matched with a motor with a larger specification to drag the engine back to the high-efficiency economic zone, and the motor with a larger specification is more expensive. Therefore, the problem It has also become one of the problems that the industry needs to solve

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