Parallel-type energy recovery gear-shifting control system and method for electric automobile

Abstract

The invention provides a parallel-type energy recovery gear-shifting control system and method for an electric automobile. The system includes a whole automobile controller, a motor and a signal acquisition unit; the signal acquisition unit is in communication connection with the whole automobile controller through a can bus; the whole automobile controller is in communication connection with themotor through the can bus; the signal acquisition unit is used for acquiring energy recovery information and transmitting the energy recovery information to the whole automobile controller; the wholeautomobile controller receives the energy recovery information and controls the motor to execute an energy recovery mode. By adopting the scheme above, the energy recovery efficiency of the whole automobile can be effectively improved, the driving performance of the whole automobile is improved, and meanwhile, the functional configuration of the electric automobile is increased; the user experience of the electric automobile is improved, and not only is the balance between energy conservation of the whole automobile and the driving quality achieved in terms of performance, but also the competitiveness of the whole automobile in the market is enhanced.

Description

technical field [0001] The invention belongs to the technical field of electric vehicle braking energy recovery, and in particular relates to an electric vehicle parallel energy recovery step-by-step control system and method. Background technique [0002] Braking energy recovery is one of the effective measures to improve the energy utilization rate of electric vehicles; according to the different structures and strategies, the braking energy recovery system can be divided into "parallel" recovery system and "series" recovery system; due to the structure Due to different factors such as cost and control implementation difficulty, most electric vehicle braking energy recovery systems on the market still use "parallel connection"; "parallel connection" braking energy recovery can be divided into two types: coasting recovery and braking recovery. process; from a structural point of view, the "parallel" braking energy recovery is only a modification of the prototype vehicle. Du...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to address the deficiencies in the above-mentioned technologies, and propose a parallel energy recovery and step-by-step control system and method for electric vehicles, aiming at solving the problem of low energy recovery efficiency of existing electric vehicles

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