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Power-on and power-down control method and device, and vehicle

An electric control and vehicle technology, applied in the field of vehicles, can solve the problems of unable to cut off the high voltage, shorten the service life, reduce the reliability of the high voltage system, etc., and achieve the effect of improving the mode switching efficiency, avoiding invalid switching, and reasonable switching

Inactive Publication Date: 2018-04-27
BORGWARD AUTOMOTIVE CHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are sudden changes in high voltage and high current during the power-on and power-off process of the high-voltage system of electric vehicles. It will cause the high-voltage contacts to stick together and fail to cut off the high-voltage accident, resulting in reduced reliability and shortened life of the high-voltage system

Method used

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  • Power-on and power-down control method and device, and vehicle
  • Power-on and power-down control method and device, and vehicle
  • Power-on and power-down control method and device, and vehicle

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Embodiment Construction

[0074] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0075] Usually, the vehicle control system only considers the power-on control process in the driving state in the process of controlling power-on and power-on, and does not consider the power-on and power-on control process in the charging mode. At the same time, the process of controlling the power on and off in the two modes only considers the ordinary power on and off process, and does not fully consider the rationality of switching between the driving power on and off mode and the charging power on and off mode and the possible abnormalities in the process In the operating state, a reasonable state switching sequence is not set, resulting in the vehicle ...

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Abstract

The disclosure relates to a power-on and power-down control method and device, and a vehicle. The vehicle has a running power-on and power-down mode and a charging power-on and power-down mode. Firstly, when the vehicle is in a low voltage power-on state, the current power-on and power-down mode of the vehicle is determined, and then the current power-on and power-down mode of the vehicle is switched to the other power-on and power-down mode according to the connection state of a charging line and a charging interface, the state of a key, and the high voltage connection state. Therefore, by using the power-on and power-down control method, the running power-on and power-down mode and the charging power-on and power-down mode of the vehicle are combined, after the current power-on and power-down mode of the vehicle is determined, a more reasonable mode switching sequence is set by comprehensively considering the connection state of the charging line and the charging interface, the stateof the key, and the high voltage connection state, so that reasonable switching between the running power-on and power-down mode and the charging power-on and power-down mode of the vehicle is achieved, invalid switching between the running and charging modes of the vehicle is avoided, and the mode switching efficiency of the vehicle and the high voltage safety of the vehicle are enhanced.

Description

technical field [0001] The present disclosure relates to the technical field of vehicles, and in particular, to a method and device for controlling power on and off, and a vehicle. Background technique [0002] With the development of the economy and the rapid growth of car ownership, the energy crisis of fossil fuels is becoming more and more prominent, and the environmental pollution problems brought about by it are also becoming more and more serious. In order to solve energy and pollution problems, countries around the world are vigorously promoting electric vehicles. Compared with traditional vehicles, electric vehicles have a set of high-voltage drive systems (including power batteries, drive motors and high-voltage distribution boxes, etc.) and a set of high-voltage accessories (DCDC, PTC and air conditioning compressor, etc.), where DCDC is a DC-DC converter, and PTC is an electric heater. Among them, the electric vehicle high-voltage drive system and high-voltage a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L3/00B60L11/18
CPCB60L3/00B60L53/14Y02T10/70Y02T10/7072Y02T90/14
Inventor 卢素芬
Owner BORGWARD AUTOMOTIVE CHINA CO LTD
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