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Safety control method and device based on electrically-driven active heating mode

A safety control and active technology, applied in battery/fuel cell control devices, electric vehicles, control drives, etc., can solve problems such as unintended movement, which is not conducive to the personal safety of drivers and surrounding pedestrians

Active Publication Date: 2021-02-23
睿驰电装(大连)电动系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The error torque is amplified by the speed ratio of the reducer and causes the risk of unexpected movement of the vehicle, which is very detrimental to the personal safety of the driver and surrounding pedestrians

Method used

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  • Safety control method and device based on electrically-driven active heating mode
  • Safety control method and device based on electrically-driven active heating mode
  • Safety control method and device based on electrically-driven active heating mode

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Embodiment Construction

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. the embodiment. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0043] For electric vehicles, due to the impact of the battery's own performance, the battery may not be able to charge quickly and provide power for the vehicle to start in a relatively cold environment. In order to enable the vehicle to be used normally in a relatively cold environment, the battery is generally heated during or before charging, so that the battery can be charged qu...

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PUM

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Abstract

The invention provides a safety control method and device based on an electrically-driven active heating mode, and relates to the technical field of battery heating application. The method comprises the steps: obtaining a heating request signal of a power battery and the gear information of a vehicle in real time; judging whether the vehicle is in a static state or not based on the gear information; and if the vehicle is in the static state and the electronic parking brake system is activated, starting the electric drive active heating mode, wherein the activated electronic parking brake system is used for offsetting the driving force generated by the electric drive active heating mode, and the safety and reliability of the electric drive active heating mode are guaranteed.

Description

technical field [0001] The invention relates to the technical field of battery heating applications, in particular to a safety control method and device based on an electric drive active heating mode. Background technique [0002] The performance of the new energy vehicle power battery is very sensitive to temperature. In order to meet the power output and safety of the vehicle in a low temperature environment, a high-pressure water heating heater (Positive Temperature Coefficient, PTC) is generally equipped for battery heating. At present, in order to save the cost of components, the electric drive system actively heats up to replace the traditional PTC to heat the battery. [0003] The inventors have found through research that due to errors in sensor measurement accuracy, installation accuracy, and software control accuracy in the electric drive system, an error torque that cannot be completely eliminated will be generated at the output end of the motor. The error torque...

Claims

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Application Information

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IPC IPC(8): B60L58/27B60L15/20
CPCB60L58/27B60L15/20B60L15/2009Y02T10/70Y02T10/72
Inventor 王一亮于晓先
Owner 睿驰电装(大连)电动系统有限公司