Voltage disconnection of a high voltage vehicle

A voltage, vehicle power grid technology, applied in the direction of battery disconnection circuit, vehicle components, vehicle energy storage, etc., to achieve the effect of improved protection

Active Publication Date: 2015-12-02
AUDI AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Personnel are therefore retained during work as the greatest risk factor, since a person may have unintentionally plugged in the charging plug, for example through uncoordinated cooperation, while another person is still working, for example, under the vehicle

Method used

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  • Voltage disconnection of a high voltage vehicle

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Embodiment Construction

[0024] The drawing shows a schematic view of a motor vehicle 10, which may be a passenger car, for example. The motor vehicle 10 may have one or more energy supply devices. In the example shown in the drawing, an energy accumulator of a motor vehicle, in particular a high-voltage battery 12, is provided as an energy supply device. The high-voltage battery 12 may be electrically connected to the high-voltage vehicle electrical grid 14. The high-volt vehicle electrical system 14—or simply referred to as the vehicle electrical system 14—may have, for example, bus bars and / or metal wires, through which the high-volt voltage generated by the high-volt battery 12 is guided to (not shown) 的) High-volt electrical load. In combination with the present invention, a high-volt voltage can be understood as a voltage whose value is greater than 60 volts, especially greater than 200 volts, such as 400 volts. One of the high-volt electrical loads may be, for example, an electric motor (not s...

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Abstract

The invention relates to a method for securing a high voltage on-board power supply (14) of a motor vehicle (10) for repair and / or maintenance of the motor vehicle (10). The problem addressed by the invention is that of securing the high-voltage on-board power supply by technical means instead of procedural measures. For this purpose, the energy inflow of the energy supply unit (12) is blocked during or after a voltage disconnection of the high-voltage on-board power supply (14), in which an energy inflow of an energy supply unit (12) to the high-voltage on-board power supply is interrupted. Additionally or alternatively, at least one other energy inflow (16, 20, 32, 34, 38) is blocked, wherein the at least one other energy inflow (16, 20, 32, 34, 38) is designed in order to supply energy from a further energy source (22) to the high-voltage on-board power supply (14).

Description

Technical field [0001] The invention relates to a method for protecting a high-voltage / high-voltage on-board electrical network of a motor vehicle for repairs and / or maintenance work on the motor vehicle. Also belonging to the present invention is a motor vehicle including a high-voltage on-board electrical network and a diagnostic device for such a motor vehicle. Background technique [0002] It is necessary to ensure that the system is voltage-free on the high-voltage system of a car or during operation near such a high-voltage system. For this purpose, the voltage is disconnected. The first important step here is to interrupt the connection between the high-voltage battery of the high-voltage system and the high-voltage on-board electrical system for the distribution of high voltage in the motor vehicle. For this purpose, a switch contactor is usually provided in the high-voltage battery, which is opened by the control device. This locks the electric energy of the high-volt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L1/00B60L3/00B60L3/04B60L11/12B60L11/18H02J7/00B60L50/15
CPCB60L1/00B60L3/0046B60L3/04B60L11/126B60L11/1816B60L11/1877B60L2210/30B60L2250/10H02J7/00Y02T10/6217Y02T10/7005Y02T10/705Y02T10/7077Y02T10/7241Y02T90/127Y02T90/14B60L50/62B60L50/66B60L53/14H02J7/0032Y02T10/62Y02T10/70Y02T10/7072Y02T10/72B60R16/03B62D65/005Y02T90/12
Inventor M·托梅斯M·赫内F·恩格尔哈德T·比特内H·诺伊格鲍尔
Owner AUDI AG
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