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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

Pending Publication Date: 2021-03-09
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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Problems solved by technology

[0004] The main purpose of the present invention is to provide an automobile power system control method, device, equipment and storage medium, aiming to solve the technical problem that the current power system capacity cannot be fully utilized, which affects the power performance and drivability of the vehicle, resulting in poor user experience

Method used

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

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no. 1 example

[0072] Based on the first embodiment above, the step S10 of the vehicle power system control method in this embodiment includes:

[0073] Step S101: Obtain the current state parameters of the battery system and the intention parameters input by the driver.

[0074] It can be understood that the current state parameters of the battery system may include: the maximum temperature TBmax of the battery pack, the minimum temperature TBmin of the battery pack, the available battery power SOC, and the voltage U of the battery pack; the intention parameters input by the driver may include: accelerator pedal opening Acpedlpos, Acceleration pedal opening unit time change gradient AcpedlLoad, vehicle speed V and pedal depression time. The battery pack generally includes multiple single cells. The temperature of each part of the battery pack is different during use. The highest temperature of the battery pack refers to the temperature value of the highest temperature part, and the lowest t...

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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.

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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Application Information

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IPC IPC(8): B60L15/20
CPCB60L15/20B60L2240/12B60L2240/421B60L2240/423B60L2240/54Y02T10/72
Inventor 张亚生舒南翔李官保
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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