Automatic high-voltage cutoff system for battery pack of pure electric vehicle

A pure electric vehicle and battery system technology, applied in the field of high-voltage self-cutoff system of pure electric vehicle battery pack, can solve problems such as high-voltage leakage, and achieve the effect of avoiding secondary harm

Inactive Publication Date: 2014-02-12
SOUEAST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a pure electric vehicle battery pack high-voltage self-cutting system to solve the problem of high-voltage leakage caused by vehicle collision

Method used

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  • Automatic high-voltage cutoff system for battery pack of pure electric vehicle

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Embodiment Construction

[0012] see figure 1 As shown, the present invention will be described in detail below.

[0013] Pure electric vehicle battery pack high-voltage self-cutting system, including body collision sensor 1, airbag controller 2, battery system controller 3 and high-voltage main relay 4 in the battery pack, body collision sensor 1 is connected to airbag controller 2, and the airbag The controller 2 is connected to the battery system controller 3, and the battery system controller 3 is connected to the high-voltage main relay 4 in the battery pack.

[0014] In this system, when the vehicle collides, the vehicle body collision sensor 1 will detect whether the collision acceleration is twice the acceleration of gravity, and the airbag controller 2 will judge whether it is necessary by calculation when receiving the collision signal from the vehicle body collision sensor 1. Airbag deployment and crash signal. The collision signal will be sent to the battery system controller 3 through th...

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Abstract

The invention provides an automatic high-voltage cutoff system for a battery pack of a pure electric vehicle. The automatic high-voltage cutoff system comprises a vehicle body collision sensor, a safety airbag controller, a battery system controller and a high-voltage main relay in the battery pack, wherein the vehicle body collision sensor is connected with the safety airbag controller, the safety airbag controller is connected with the battery system controller, and the battery system controller is connected with the high-voltage main relay in the battery pack. According to the automatic high-voltage cutoff system, a high-voltage power supply can be automatically cut off during vehicle collision, so that the injury to personnel caused by the high voltage leakage of the pure electric vehicle is avoided.

Description

technical field [0001] The invention relates to the field of pure electric vehicles, in particular to a high-voltage self-cutting system for battery packs of pure electric vehicles. Background technique [0002] Existing pure electric vehicles cut off the high-voltage output of the battery system before the vehicle collides. During the collision, the high-voltage electrical appliances and high-voltage lines may be damaged and cause high-voltage leakage due to contact with the vehicle body, endangering the lives of the driver and other passengers. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a high-voltage self-cutting system for battery packs of pure electric vehicles to solve the problem of high-voltage leakage caused by vehicle collisions. [0004] The present invention is achieved like this: [0005] The pure electric vehicle battery pack high-voltage self-cutting system includes a vehicle body collision s...

Claims

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Application Information

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IPC IPC(8): B60L3/04B60R21/02
Inventor 刘帝平
Owner SOUEAST
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