Mixed motor vehicle driving system

Abstract

The invention provides a drive system for a hybrid car, comprising a motor and an electric motor providing power for a gearing; a generator for receiving the power of the motor to generate electricity; and an electric power between the generator and the electric motor; the system also comprises a double clutch which is connected between the motor and the generator as well as the gearing and is used for transmitting the driving force of the motor selectively to the generator or the gearing. When a vehicle runs at a low speed, the double clutch is controlled to transmit the driving force of the motor to the generator to generate electricity; the electric motor receives the electric energy and outputs mechanical energy to the gearing to drive the vehicle, thus realizing a series type drive of the hybrid car. When the vehicle runs at a high speed, the double clutch is controlled to transmit the driving force of the motor directly to the geraing to drive the vehicle.

Description

technical field [0001] The invention relates to a driving system of a hybrid electric vehicle. Background technique [0002] In today's world, human beings are facing two major challenges: energy scarcity and environmental degradation. Traditional automobiles are increasingly plagued by the oil crisis. Energy conservation and environmental protection have gradually become the development theme of the automobile industry. In recent years, hybrid electric vehicles with two different power sources to achieve reduced fuel consumption and emissions have been developed and applied, and put into commercial production and introduced to the market. Currently mass-produced hybrid vehicles include Toyota Prius, Toyota Crown, Honda Insight, Honda Civic, and so on. The known driving systems of hybrid electric vehicles can be roughly divided into three structural forms: series connection, parallel connection and hybrid connection according to their electromechanical coupling characterist...

AI Technical Summary

Problems solved by technology

[0008] However, there is still a lack of such a hybrid drive system in the prior art, which can select series power transmission when the vehicle is running at a low speed, and select a parallel power transmission when the vehicle is running at a high speed, so as to meet the needs of the vehicle when driving at a low speed. It can meet the demand of large torque when the vehicle is running at high speed and meet the demand of high power when the vehicle is running at high speed

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