Vehicle control method based on multi-information integration

Abstract

The invention relates to a vehicle control method based on multi-information integration. The method comprises the following steps that: a vehicle controller unit reads vehicle state parameters in real time and correspondingly sends the vehicle state parameters to modules of the vehicle controller unit; a road slope angle calculation module, a vehicle quality calculation module, a vehicle auxiliary power calculation module and a future path forecasting module of the vehicle controller unit calculate the parameters and correspondingly sends the calculated parameters to the modules; a power battery state of charge (SOC) forecasting module determines the optimal target SOC trace curve of a power battery in certain time; a motor target torque calculation module calculates a motor target torque; a power distribution module distributes output power of an auxiliary power unit (APU) system and the power battery according to vehicle accessory power and the motor target torque; the motor target torque calculation module sends the motor target torque to a motor controller unit for controlling the motor to be driven; the power distribution module sends APU target power to an APU controller unit so as to control an auxiliary power source to work; the vehicle controller unit sets a sampling interval and reads the vehicle parameters; and the steps are performed repeatedly until the vehicle is power off. The vehicle control method is applied to pure electric vehicles and hybrid electric vehicles.

Description

technical field [0001] The invention relates to a vehicle control method, in particular to a vehicle control method based on multi-information fusion that is applicable to range-extended electric vehicles and fuel cell vehicles evolved from series hybrid power systems. Background technique [0002] The global auto industry is facing two major pressures of energy saving and emission reduction. As an effective means of energy saving and emission reduction, new energy vehicles are favored by governments and enterprises of various countries. According to the different degree of vehicle electrification, new energy vehicles are divided into pure electric drive vehicles and conventional hybrid vehicles. Pure electric drive vehicles mainly include pure electric vehicles, plug-in electric vehicles, extended-range electric vehicles and fuel cell vehicles. Large, all or most of the working conditions of the vehicle are driven by the motor; conventional hybrid vehicles include series, p...

AI Technical Summary

Problems solved by technology

The above method can partially solve the performance optimization problem of a fixed driving route, but it still cannot make the power and economy of the vehicle adaptively adjust with the road conditions

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