Electromobile, as well as high-low voltage interlocking detection circuit and interlocking signal detection method thereof

A technology for electric vehicles and detection circuits, which is applied to electric vehicles, measuring electricity, and power-consuming devices, etc., can solve the problems of wrong identification, easy interference of pulse signals, and inability to identify the short circuit of the virtual connection of the low-voltage terminal of the connector, etc., to achieve reliability. High, reliable and safe, accurate identification effect

Active Publication Date: 2015-12-30
BEIJING ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] related technologies, such as figure 1 As shown, by detecting the voltage of any low-voltage terminal to judge whether the connector is well connected, the circuit can only identify the complete connection and complete disconnection (open circuit) of the connector, but cannot identify whether the connector has a virtual connection or whether the low-voltage terminal is short circuit
[0004] Additionally, if figure 2 As shown, by sending a pulse signal to one of the low-voltage terminals and detecting th

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  • Electromobile, as well as high-low voltage interlocking detection circuit and interlocking signal detection method thereof
  • Electromobile, as well as high-low voltage interlocking detection circuit and interlocking signal detection method thereof
  • Electromobile, as well as high-low voltage interlocking detection circuit and interlocking signal detection method thereof

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[0024] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0025] The following describes the high and low voltage interlock detection circuit of an electric vehicle, the electric vehicle and the interlock signal detection method of the electric vehicle according to the embodiments of the present invention with reference to the accompanying drawings.

[0026] image 3 It is a block diagram of a high and low voltage interlock detection circuit of an electric vehicle according to an embodiment of the present invention. Such as image 3 As shown, the high and low ...

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Abstract

The invention discloses an high-low voltage interlocking detection circuit of an electromobile. The detection circuit comprises a first detection branch circuit for detecting voltage of a first low voltage terminal to output a first voltage detecting value, a second detection branch circuit for detecting voltage of a second low voltage terminal to output a second voltage detecting value, a filter connected between the first detection branch circuit and the second detection branch circuit, a controller for recognizing a connecting state of a connector according to the first voltage detecting value and the second voltage detecting value. Through the adoption of the detection circuit, the current connecting state of the connector can be accurately recognized, the connecting state comprises a complete connection state, a virtual connection state, an open circuit state, a short circuit state relative to the ground, and a short circuit state relative to a power source; the reliability and the safety of the detection circuit are higher. The invention further discloses the electromobile, and an electromobile interlocking signal detection method.

Description

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Application Information

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Owner BEIJING ELECTRIC VEHICLE
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