High-voltage interlocking circuit and detection method thereof

A technology of high-voltage interlocking and detection method, applied in the field of electric power, can solve the problems of unobtainable faults, unable to locate faults, etc.

Active Publication Date: 2020-04-07
CONTEMPORARY AMPEREX TECH CO
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At this stage, the detection of the high-voltage interlock circuit can only know whether there is a fault, but not the specific fault, so that the cause of the fault cannot be located

Method used

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  • High-voltage interlocking circuit and detection method thereof
  • High-voltage interlocking circuit and detection method thereof
  • High-voltage interlocking circuit and detection method thereof

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Embodiment Construction

[0027] Features and exemplary embodiments of various aspects of the invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by showing examples of the present invention. The present invention is by no means limited to any specific configurations and algorithms presented below, but covers any modification, substitution and improvement of elements, components and algorithms without departing from the spirit of the invention. In the drawings and the following description, well-known structures and techniques have not been shown in order to avoid unnecessarily obscuring the present invention.

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Abstract

The invention provides a high-voltage interlocking circuit and a detection method thereof, and relates to the technical field of electric power. The high-voltage interlocking circuit comprises: an alternating current signal source module is connected with a detection resistor set and a high-voltage interlocking module, and the alternating current signal source module is used for outputting an alternating current signal. The detection resistor set is connected with the signal detection module and the high-voltage interlocking module. The signal detection module is used for collecting electric signals of the detection resistor set and outputting detection result signals according to the collected electric signals of the detection resistor set. The control module is connected with the alternating current signal source module and the signal detection module, and the control module is used for controlling the alternating current signal source module to output alternating current signals, obtaining detection result signals and determining faults of the high-voltage interlocking module according to the detection result signals. By utilizing the technical scheme of the invention, the positioning of the fault reason of high-voltage interlocking can be realized.

Description

technical field [0001] The invention belongs to the technical field of electric power, and in particular relates to a high-voltage interlock circuit and a detection method thereof. Background technique [0002] With the rapid development of new energy vehicles, the safety of new energy vehicles has become a focus of attention. New energy vehicles rely on high voltage and high current to power the car. Therefore, the high-voltage interlock circuit in high-voltage safety is very important in the high-voltage loop monitoring system. [0003] The high-voltage interlock circuit is used to monitor the integrity of the connection between various high-voltage components in the new energy vehicle in real time to ensure that the new energy vehicle can run in a safe state. At this stage, the detection of the high-voltage interlock circuit can only know whether there is a fault, but not the specific fault, so that the cause of the fault cannot be located. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/28
CPCG01R31/2827G01R31/2829
Inventor 傅焱辉代伟卓健炜刘昌鑑
Owner CONTEMPORARY AMPEREX TECH CO
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