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Delayed power-off device for a whole vehicle

A technology for complete vehicles and on-board batteries, which is applied to electrical devices, electric vehicles, electrical components, etc., and can solve problems such as motor controllers not being able to discharge, so as to prolong life and ensure safe operation

Active Publication Date: 2018-03-09
江苏卡威汽车研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a delayed power-off device for the whole vehicle, which solves the technical problem that the motor controller cannot be discharged after a sudden power failure, so that maintenance personnel have no safety hazards when repairing the motor controller, and the motor can be powered off after power failure. Rapid cooling ensures safe operation during maintenance and prolongs the life of the motor

Method used

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  • Delayed power-off device for a whole vehicle

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Embodiment Construction

[0009] Such as figure 1 The shown device for delayed power-off of a vehicle includes a vehicle battery (not shown in the figure of the vehicle battery), a vehicle controller VCU, a water pump controller, a battery management system BMS, a motor controller, a relay RUN1, The relay RUN2, the relay RUN3, the relay RUN4 and the key switch module IG, the vehicle controller VCU has the first IO port, the second IO port, the third IO port, the fourth IO port, the fifth IO port and the sixth IO port , the water pump controller is connected to the positive pole of the vehicle battery through the normally open contact of the relay RUN4, one end of the coil of the relay RUN4 is connected to the positive pole of the vehicle battery, and the other end of the coil of the relay RUN4 is connected to the first IO port of the vehicle controller VCU, The second IO port of the vehicle controller VCU is connected to one end of the coil of the relay RUN3, the other end of the coil of the relay RUN3...

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Abstract

The invention discloses a delayed electrification device of a finished vehicle and belongs to the technical field of electric vehicles. The delayed electrification device of the finished vehicle comprises a vehicle-mounted battery, a vehicle control unit (VCU), a water pump controller, a battery management system (BMS), a motor controller, a relay RUN1, a relay RUN2, a relay RUN3, a relay RUN4 and a key switch module IG. The delayed power failure control over the electric vehicle is achieved in case of power off through a normally-open relay and a normally-closed relay, time is available for a motor controller to achieve the discharging process, the technical problem that the motor controller cannot discharge after power is off suddenly is solved, and no potential safety hazard exists when a maintainer maintains the motor controller; and a motor is made to be cooled rapidly after power is off, the operation safety in the maintenance process is ensured, and the service life of the motor is prolonged.

Description

technical field [0001] The invention belongs to the technical field of electric vehicles. Background technique [0002] At present, when electric vehicles are being maintained, the electric vehicle needs to be powered off first. During the power-off process of the electric vehicle, the motor controller is suddenly powered off, causing the potential in the capacitor to not be released or the release process will be very slow, resulting in maintenance and operation. Personnel are at risk of electric shock. In addition, after the motor stops suddenly, the temperature inside the motor will rise suddenly, which poses certain safety hazards and affects the life of the motor. Contents of the invention [0003] The purpose of the present invention is to provide a delayed power-off device for the whole vehicle, which solves the technical problem that the motor controller cannot be discharged after a sudden power failure, so that maintenance personnel have no safety hazards when re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L3/00H03K17/28
CPCB60L3/00H03K17/28
Inventor 王强孟明华苏垚
Owner 江苏卡威汽车研究院有限公司