Automobile power system control method, device and equipment and storage medium

A power system and control method technology, applied in the field of vehicle power system control methods, equipment, storage media, and devices, capable of solving problems affecting vehicle power and drivability, poor user experience, and inability to fully utilize power system capabilities, etc. To achieve the effect of improving the power and driving performance of the vehicle
CN112455241APending Publication Date: 2021-03-09ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
Publication Date
2021-03-09

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Abstract

The invention belongs to the technical field of automobiles, and discloses an automobile power system control method, a device and equipment and a storage medium. The method comprises the following steps: acquiring available power of a battery system corresponding to a current automobile; acquiring a current road condition, a current motor speed and a speed change gradient; determining motor torque according to the current road condition, the current motor speed and the speed change gradient; determining a target motor torque according to the available power of the battery system and the motortorque; and controlling a motor in the automobile power system to output the target motor torque. Through the mode, the available power of the battery system and the motor torque are obtained, the torque of the motor is dynamically controlled according to the available power of the battery system and the motor torque, the output capacity of a dual-power system is reasonably controlled, and the problems that the current power system capacity cannot be fully utilized, and the whole vehicle dynamic property and drivability are influenced, and the user experience is poor are solved.
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Description

technical field

[0001] The present invention relates to the technical field of automobiles, in particular to an automobile power system control method, device, equipment and storage medium. Background technique

[0002] The power system of a pure electric vehicle is composed of a power battery and an electric drive system. Under the driver's intention or working conditions, the power system capability cannot be fully utilized, which affects the vehicle's power performance and drivability, and the user experience is poor. Mainly reflected in: ①The available power of the battery (affected by temperature, SOC, SOH and other factors) cannot be fully utilized; ②Under the conditions of full-load acceleration, fast start, rapid acceleration, and secondary acceleration, the motor torque loading rate is fast, If the wheel torque load is too large, the whole vehicle is prone to slipping, the dynamic performance is affected and the drivability is poor.

[0003] The above content is o...

Claims

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