Hybrid power system

Abstract

The invention discloses a hybrid power system and belongs to the field of hybrid electric vehicles. The hybrid power system comprises an engine, a first motor, a second motor, a first clutch and a planetary gear train. The first motor and the second motor are electrically connected in parallel. Both the engine and the first motor are in transmission connection with the first clutch. The first clutch, the planetary gear train and wheels are in transmission connection sequentially. The second motor and the wheels are in transmission connection. The planetary gear train is used for enabling the rotating speed of the engine and the rotating speed of the first motor to form the preset speed ratio. By the adoption of the provided system, the oil consumption can be reduced, cost is saved, throughdouble-motor design, even though the oil consumption of a vehicle is too large and thus the engine is insufficient in power, the insufficient power can be supplemented through the second motor, thenthe second motor is matched with the first motor to drive the wheels to rotate, and normal traveling of the vehicle is guaranteed.

Description

technical field [0001] The invention relates to the field of hybrid electric vehicles, in particular to a hybrid power system. Background technique [0002] Traditional cars rely on burning fossil fuels (such as gasoline, diesel, etc.) to provide power for the engine, and the exhaust gas will pollute the environment, which does not meet the requirements of energy saving and environmental protection. Therefore, it is necessary to replace fossil fuels with non-polluting new energy sources such as electric energy to provide power for automobiles. However, pure electric vehicles with electric energy as energy have a short cruising range, and the supporting facilities are not perfect, which cannot meet people's travel requirements. Combining fossil fuels and electric energy can not only alleviate the crisis of fossil fuels, but also make up for the defects of pure electric vehicles. Therefore, it is very necessary to provide a hybrid power system that can utilize fossil fuels an...

AI Technical Summary

Problems solved by technology

[0005] In the hybrid power system provided by the prior art, when the engine and the motor jointly drive the car, the clutch is engaged, and the engine speed changes with the wheel speed, so that the engine cannot always work in the speed range with the lowest fuel consumption, thereby increasing the The fuel consumption of the car, causing a waste of resources

Moreover, the increase in the fuel consumption of the car will easily lead to insufficient power of the engine, which will affect the normal driving of the car.

Images