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Method for deactivating a high voltage system of a motor vehicle

A high-voltage system and motor vehicle technology, applied in the direction of electric vehicles, electric vehicle charging technology, electrical devices, etc., can solve problems such as not really reliable, and achieve the effect of improving reliability

Active Publication Date: 2015-09-09
VOLKSWAGEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The known method for invalidating and restoring the traction electrical network of a motor vehicle has the disadvantage that it is not really reliable
Actuation of the monitoring switch (which is realized when the plug connector and the complementary mating plug connector are released) causes the high voltage power supply to be deactivated by the control unit

Method used

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  • Method for deactivating a high voltage system of a motor vehicle
  • Method for deactivating a high voltage system of a motor vehicle
  • Method for deactivating a high voltage system of a motor vehicle

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Embodiment Construction

[0037] figure 1 with 2 The basic features and specific method steps of a high voltage system ("HV system") for deactivation and subsequent recovery of a motor vehicle are shown in the figure.

[0038]The high-voltage system (not shown) is the traction electrical network of the electrified motor vehicle. The traction electrical network comprises at least one high-voltage power source, such as in particular a high-voltage battery unit or a fuel cell, and one or more high-voltage loads. The high-voltage loads are in particular one or more electric drive motors, possibly electric air-conditioning compressors and other convenience devices and / or auxiliary units operated with high voltage, power electronics for controlling functional elements operated with high voltage The device and possibly the charging system via which the high-voltage battery unit can be charged by an external electrical energy source. Furthermore, the high-voltage system includes one or more protective devic...

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Abstract

A method for deactivating an electric high voltage system of a motor vehicle including requesting an interruption of the high voltage system in a first control system; requesting an interruption of the high voltage system in a second control system; and the automatic interruption of the high voltage system by at least one of the control systems.

Description

Background technique [0001] In a motor vehicle with an electrified or partially electrified powertrain (BEV: battery electric vehicle; HEV: hybrid electric vehicle; PHEV: plug-in hybrid electric vehicle), electric drive motors and other Some components, such as especially electrically driven air-conditioning compressors, are operated with relatively high voltages, sometimes hundreds of volts. Together with the high-voltage power supply and other components (for example power electronics, charging equipment), the components operated with high voltage form a high-voltage system, which is also referred to as a traction network. In addition to the traction electrical system, electrified motor vehicles usually also have a second electrical system which essentially corresponds to the vehicle electrical system (Bordnetz) of a conventional motor vehicle and is therefore operated with a relatively low voltage (in particular 12V or 24V). [0002] In the aftersales service, the traction...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L3/00B60L3/04
CPCB60L3/0046B60L2250/16B60L11/1816B60L11/1887B60L11/1868Y02T90/14B60L3/04B60L3/0092B60L58/20B60L58/10Y02T10/70Y02T10/7072
Inventor U·拉赫蒙德R·亨施S·奎恩特迈尔
Owner VOLKSWAGEN AG
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