Integrated control system and method of electric vehicle

Abstract

The invention provides an integrated control system of an electric vehicle. The integrated control system comprises a motor controller, a vehicle control unit and a battery management system; the vehicle control unit comprises a signal acquisition unit, a mode judgment unit, a torque calculation unit and a signal output unit; the signal acquisition unit is used for acquiring signals from various components of the vehicle; the mode judgment unit is used for determining a current working mode according to the acquired signals; the torque calculation unit is used for calculating the torque; and the signal output unit is used for outputting a control signal to each component of the vehicle according to the current working mode. The invention also provides a corresponding control method. According to the integrated control system and method disclosed by the invention, the signals of various components are acquired by the independent vehicle control unit to determine the working mode of the vehicle and the control signals are output according to the working mode of the vehicle, and therefore various components of the vehicle are effectively integrated.

Description

technical field [0001] The invention relates to the field of electric vehicles, and more specifically, to an integrated control system and method for electric vehicles. Background technique [0002] Automobile has become an indispensable means of transportation in today's society, and it has played an irreplaceable role in promoting the progress of human society. However, the development of automobiles is also facing more and more severe challenges from natural environment protection, energy shortages, road traffic accidents, etc., and has brought some negative effects. [0003] Due to the outstanding advantages of electric vehicles, especially in terms of environmental protection, the development and research of electric vehicles has become the mainstream of developing green vehicles in various countries. At present, many car brands have launched their own electric vehicles and have already put them on the market. [0004] However, in most current electric vehicles, the m...

AI Technical Summary

Problems solved by technology

For example, the gear signal, accelerator and brake pedal signals of the car are directly sent to the motor controller for processing. The problem brought about by this is that the motor controller cannot become a general-purpose actuator

[0005] In addition, the vehicle control of existing electric vehicles is very immature, so that the various components of the vehicle have not been effectively integrated, that is, the motor controller, BMS and instrument system have not carried out centralized information collection and processing

As a result, there is too much interference between the various components of the system, and the motor controller of the existing electric vehicle often needs to undertake many tasks of judging the driving intention in addition to the motor control, and causes the response speed of the whole vehicle system to be slow, especially for safety and security. Comfort needs to be improved

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