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Electric vehicle, vehicle safety control method and device

A safety control and vehicle technology, applied in the fields of electric vehicles, vehicle safety control methods, and devices, can solve problems such as restoring power supply systems, and achieve the effect of reducing the probability of secondary accidents, avoiding short circuits and insulation failures

Active Publication Date: 2021-08-17
NIO ANHUI HLDG CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] In order to solve the above-mentioned problems in the prior art, that is, in order to solve the technical problem of how to cut off and restore the power supply system after a collision accident occurs in an electric vehicle

Method used

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  • Electric vehicle, vehicle safety control method and device
  • Electric vehicle, vehicle safety control method and device

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Embodiment Construction

[0095] Preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention.

[0096] The current safety protection system of electric vehicles only considers how to reduce the safety risk after a collision, but does not take into account how to restore the power supply system after a collision accident, especially in environments with high driving risks, such as collisions at traffic intersections, and The collision intensity of the electric vehicle is low, if the power supply cannot be restored in time at this time, it is very likely to cause a secondary collision. Based on this, the present invention provides a vehicle safety control method for how to cut off the high-voltage power supply system after a vehicle collis...

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Abstract

The invention relates to the technical field of vehicle control, and specifically provides a vehicle safety control method, device and electric vehicle, aiming at solving the technical problem of how to cut off and restore the power supply system after a collision accident of the electric vehicle occurs. For this purpose, the vehicle safety control method in the present invention can implement different high-voltage power supply system cut-off strategies according to the collision intensity level, specifically: when the collision intensity level is high, the high-voltage power supply system is quickly cut off in an irreversible manner to effectively avoid high-voltage Risks arising from the power supply system; when the collision intensity level is low, the high-voltage power supply system is cut off in a reversible manner, so that the vehicle can quickly leave the accident scene and reduce the occurrence of secondary accidents under the condition that the collision intensity does not affect its continued safe driving risks of. The device and the electric vehicle in the present invention can execute and realize the steps of the above vehicle safety control method.

Description

technical field [0001] The invention relates to the technical field of vehicle control, in particular to a vehicle safety control method and device and an electric vehicle. Background technique [0002] An electric vehicle refers to a vehicle that can be powered by a battery. The electrical system of an electric vehicle includes a low-voltage electrical system and a high-voltage electrical system. Among them, the high-voltage electrical system mainly includes high-voltage power supply system, high-voltage motor and electric drive control system and other equipment. The working voltage of the high-voltage power supply system is as high as several hundred volts, which is far higher than the safe voltage, and when the high-voltage power supply system leaks electricity, such as the power battery leakage caused by a vehicle collision, it will directly affect the personal life and property safety of drivers and passengers. harm. [0003] At present, the method of vehicle acciden...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L3/00
CPCB60L3/0007
Inventor 赵欣超方沛纳
Owner NIO ANHUI HLDG CO LTD
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