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High-voltage interlocking detection circuit, high-voltage interlocking detection system and automobile

A high-voltage interlock and detection circuit technology, which is applied in the direction of measuring electricity, measuring electrical variables, and measuring devices, can solve the problems of inaccurate high-voltage interlock detection, difficult layout, and high design cost, and achieve simple hardware layout and detection strategies. Effect of reducing design cost and ensuring safe operation

Active Publication Date: 2018-12-11
BEIJING ELECTRIC VEHICLE
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Problems solved by technology

[0004] The invention provides a high-voltage interlock detection circuit, a high-voltage interlock detection system and an automobile to solve the problems of inaccurate high-voltage interlock detection or difficult layout, complex strategy and high design cost in the prior art

Method used

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  • High-voltage interlocking detection circuit, high-voltage interlocking detection system and automobile
  • High-voltage interlocking detection circuit, high-voltage interlocking detection system and automobile

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Embodiment Construction

[0039] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0040] figure 1 Shown is a schematic circuit diagram of a high voltage interlock detection circuit provided by an embodiment of the present invention.

[0041] See figure 1 , the embodiment of the present invention provides a high-voltage interlock detection circuit 100, which may include: at least two test resistors and at least two high-voltage connector interlock devices. Here, at least two test resistors such as figure 1 R1, R2, R3, R4, R5...Rn shown in; at least two high-voltage connector interlocking devices such as figure 1 101, 102, 103, 104, 105...10n shown in .

[0042] In the embodiment of the present invention, the first ends of each of the test resistors are connected to each other to form a detection point A, and the second ends are res...

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Abstract

The invention provides a high-voltage interlocking detection circuit, a high-voltage interlocking detection system and an automobile. The high-voltage interlocking detection circuit comprises at leasttwo test resistors and at least two high-voltage connector interlocking devices, wherein the first ends of respective test resistors are connected together to form a detection point; the second end of each test resistor is grounded through the corresponding high-voltage connector interlocking device; the detection point is connected to a reference voltage; each test resistor is connected to a corresponding high-voltage connector interlocking device; and each test resistor has a different resistance value. The high-voltage interlocking detection circuit can ensure the operation safety of the automobile, and is simple in hardware layout and detection strategy, and is reduced in design cost.

Description

technical field [0001] The invention relates to the technical field of high-voltage interlock, in particular to a high-voltage interlock detection circuit, a high-voltage interlock detection system and an automobile. Background technique [0002] In order to avoid the harm of high-voltage electricity to the human body and ensure the safe operation of the car, the corresponding detection logic or detection circuit is usually designed on the car to detect the high-voltage interlock state. [0003] The current detection methods are mainly divided into two types: one is to connect each detection unit in series, as long as one of the interlocks is disconnected, the interlock fault will be reported, but this method cannot confirm the specific high-voltage parts with interlock faults; the other One is based on the interlock detection of each high-voltage component individually, so that the fault location can be specifically determined, but this method is not easy to layout, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 郭艳秀李大治吕志伟
Owner BEIJING ELECTRIC VEHICLE
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