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Power supply self-protection system and a method of a hybrid electric vehicle

A self-protection technology for hybrid vehicles, which is applied in electric vehicles, vehicle components, electrical devices, etc., and can solve problems such as large inrush currents in low-voltage circuits, vehicle failures, and relay adhesion

Active Publication Date: 2018-12-18
BEIJING INSTITUTE OF TECHNOLOGYGY +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In order to realize unmanned driving of hybrid vehicles, various low-voltage and high-voltage equipment are often equipped on the vehicle. The low-voltage equipment is powered on and off at the same time, which will generate a relatively large impact current on the low-voltage circuit. Cause vehicle failure, therefore, in order to protect the low-voltage and high-voltage circuit systems of hybrid unmanned vehicles, it is necessary to formulate appropriate power-on and power-off strategies

Method used

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  • Power supply self-protection system and a method of a hybrid electric vehicle
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  • Power supply self-protection system and a method of a hybrid electric vehicle

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Embodiment Construction

[0070] Preferred embodiments of the present invention will be specifically described below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the application and are used together with the embodiments of the present invention to explain the principles of the present invention.

[0071] A specific embodiment of the present invention discloses a power supply self-protection system of a hybrid vehicle,

[0072] Among them, the electrical equipment carried by hybrid unmanned vehicles includes low-voltage equipment and high-voltage equipment;

[0073] Low-voltage equipment can be divided into planning system, perception system, underlying control system, pilot, display and other low-voltage equipment, etc.;

[0074] Among them, the planning system includes planning industrial computer, inertial navigation and satellite receiver;

[0075] The perception system includes a perception industrial computer, a camera, a millimeter-wave r...

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Abstract

The invention relates to a power supply self-protection system and a method of a hybrid electric vehicle, wherein the power supply self-protection system comprises a vehicle controller, a low-voltagedistribution box and a high-voltage distribution box; The whole vehicle controller is electrically connected with the low-voltage distribution box to control the low-voltage equipment to power up or power down according to the set sequence; The whole vehicle controller is electrically connected with the energy controller, and the high-voltage equipment is controlled to be powered on or off by theenergy controller. The high-voltage equipment is powered on after the low-voltage equipment is powered on through the control; After the high-voltage equipment is powered down, the low-voltage equipment is powered down in the set order. The invention avoids generating relatively large impulse current to the low-voltage circuit in the power-down process and damages the low-voltage equipment throughthe power supply self-protection. It avoids the possibility that the relay of the high-voltage system may be broken off by charging, which may cause the relay to adhere and lead to the vehicle failure. And by precharging, the power supply current of the high-voltage equipment is increased step by step, the current impact of the high-voltage equipment is reduced, and the high-voltage electric equipment is protected.

Description

technical field [0001] The invention relates to the field of unmanned vehicles, in particular to a power supply self-protection system and method for a hybrid vehicle. Background technique [0002] In order to realize unmanned driving of hybrid vehicles, various low-voltage and high-voltage equipment are often equipped on the vehicle. The low-voltage equipment is powered on and off at the same time, which will generate a relatively large impact current on the low-voltage circuit. Therefore, in order to protect the low-voltage and high-voltage circuit systems of hybrid unmanned vehicles, it is necessary to formulate appropriate power-on and power-off strategies. Contents of the invention [0003] In view of the above analysis, the present invention aims to provide a power supply self-protection system and method for a hybrid vehicle, which can effectively protect the power supply of a hybrid vehicle through a logic power-on process and a logic power-off process. [0004] T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L3/00B60R16/023
CPCB60L3/00B60R16/023
Inventor 陈慧岩梁文利
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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