Power system of mixed power automobile and control method thereof

Abstract

The invention discloses a power system of a mixed power automobile and a control method thereof. The power system comprises a rear electric motor drive system, an integrated type starting generator drive system, a power supply system and a control system; the rear electric motor drive system comprises a rear electric motor, a speed reducer, a differential and a rear electric motor controller and separately drives rear wheels; the integrated starting generator drive system comprises an engine, a front electric motor, a gear box, a front differential and a front electric motor controller; as the nose cabin power assembly, the power system can work under the integrated starting generator drive mode, the pure electric drive mode, the regenerative braking mode or the four-wheel drive mode. The invention omits the middle drive device in a traditional four-wheel drive vehicle, has higher drive flexibility, can reduce the automobile weight, not only can meet the requirements of a SUV vehicle for the complete-vehicle power performance, trafficability characteristic and the like, but also can achieve the purposes of energy saving and emission reduction.

Description

technical field [0001] The invention belongs to the field of hybrid electric vehicles, and in particular relates to a power system structure scheme of the hybrid electric vehicle, which achieves the goals of energy saving and emission reduction, improvement of driving pleasure, simplified mechanical structure, lightening of vehicle weight and easy realization. Background technique [0002] The current hybrid four-wheel drive system is composed of a hybrid hybrid system plus a rear motor drive system. According to the energy structure, hybrid cars can be divided into series hybrid, parallel hybrid and hybrid hybrid. Among the current industrialized cars, the parallel hybrid is represented by Honda CIVIC, and the hybrid hybrid is represented by Toyota Prius. [0003] At present, both the parallel type and the hybrid type hybrid are arranged in the form of front and front drive, and there are deficiencies in terms of power and passability. For example, the invention patent app...

AI Technical Summary

Problems solved by technology

However, since the hybrid system itself requires a specially matched engine and a specially designed and manufactured gearbox, there are 3 high-power motors in the whole vehicle, the system is complicated, the control is difficult, and the integrated design and system matching are comparatively difficult. Disadvantages such as complexity and high cost

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