Serial-parallel structure stroke increasing distributed hybrid power system

Abstract

The invention relates to a serial-parallel structure stroke increasing distributed hybrid power system. The system comprises a drive unit, an energy unit and a control unit, wherein the energy unit and the control unit are connected with each other; the control unit is connected with the drive unit; the energy unit comprises a power battery pack and an engine; the drive unit comprises a first electric motor, a speed reducer, a first clutch and a second clutch; the engine and the first electric motor are connected through the first clutch; the first electric motor and the speed reducer are connected through the second clutch; the first electric motor is connected with the control unit; and the drive unit further comprises a left hub motor and a right hub motor which are connected with the control unit. Compared with the prior art, the serial-parallel structure stroke increasing distributed hybrid power system has the advantages that the speed reducer is arranged and replaces a gearbox, so that space is reduced; by the adoption of the hub motors, the transmission efficiency is improved, electronic active differential control of left and right rear wheels and cooperative control of the double clutches are achieved, and requirements for power of different running conditions are met.

Description

technical field [0001] The invention relates to an automobile power system, in particular to a series-parallel configuration extended-range distributed hybrid power system. Background technique [0002] With the advantages of low fuel consumption, low emission and various forms of energy sources, new energy vehicles have become an important direction of current automobile development. At present, mainstream automobile manufacturers have all carried out research and development and manufacturing of new energy vehicles. Although pure electric vehicles have the advantages of low noise, zero emissions, and zero pollution, due to the technical shortcomings of the power battery pack, they have disadvantages such as short mileage on a single charge and high vehicle manufacturing costs. Although conventional hybrid vehicles can achieve the purpose of energy saving and emission reduction, they are still mainly powered by fuel, with low energy conversion efficiency and poor emission ...

AI Technical Summary

Problems solved by technology

However, in the scheme described in this patent, the rear axle uses a centralized motor, which cannot realize the electronic active differential control function described in this patent.

[0006] The range extender adopts the engine + the first clutch + the first electric motor, the front axle adopts the first electric motor + the second clutch + reducer + differential, the rear axle adopts the left and right hub motors, and the series-parallel configuration range extender that can be charged by an external power grid Distributed hybrid systems have not yet been proposed

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