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High-voltage interlocking detection device, processing method and automobile

A high-voltage interlocking and detection device technology, applied in measurement devices, electric vehicles, electrical devices, etc., can solve problems such as affecting driving control, and achieve the effect of ensuring controllability

Inactive Publication Date: 2020-08-14
BEIJING ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned technical problems, the present invention provides a high-voltage interlock detection device, a processing method and an automobile, which solve the problems of unexpected high-voltage power-off and affecting driving control caused by the current high-voltage interlock processing strategy

Method used

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  • High-voltage interlocking detection device, processing method and automobile
  • High-voltage interlocking detection device, processing method and automobile
  • High-voltage interlocking detection device, processing method and automobile

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0048] This embodiment provides a high voltage interlock detection device, such as figure 1 shown, including:

[0049] At least two high-voltage devices 1, detection circuits 2 and controllers 3 of at least two high-voltage interlocking circuits;

[0050] Wherein, one of the detection circuits 2 is correspondingly connected to a high-voltage interlock circuit of the high-voltage device 1, and the controller 3 is respectively connected to the at least two detection circuits 2;

[0051] The controller 3 is used to obtain the voltage signals of the at least two detection circuits 2, and according to the voltage signals, determine whether the working state of the high-voltage device 1 is abnormal, and according to the working state of the high-voltage device 1, control the vehicle to perform Troubleshooting.

[0052] In this embodiment, one detection circuit 2 is correspondingly connected to a high-voltage interlock circuit of one high-voltage device 1, which can realize indepen...

no. 2 example

[0071] This embodiment provides a high-voltage interlock detection processing method, which is applied to the high-voltage interlock detection device described in the first embodiment, such as image 3 shown, including:

[0072] Step 31. Obtain voltage signals of at least two detection circuits respectively;

[0073] Step 32. According to the voltage signal, determine whether the working state of the high-voltage device is abnormal;

[0074] Step 33. According to the working state of the high-voltage device, control the vehicle to handle the fault.

[0075] In this embodiment, the voltage signals of the detection circuit in the detection device described in the first embodiment are respectively obtained through the A / D interface of the PEU, and the voltage signals are sent to the VCU, and the VCU judges the The working state of the high-voltage interlock circuit of the high-voltage device corresponding to the voltage signal. In this embodiment, one detection circuit corresp...

no. 3 example

[0102] This embodiment provides an automobile, which includes the high-voltage interlock detection device described in the first embodiment. This embodiment can detect and determine whether the working status of the high-voltage interlock circuit of different high-voltage devices is abnormal, and can quickly locate the abnormal high-voltage device, and then adopt different fault handling according to the different high-voltage devices that have abnormalities In this way, under the premise of ensuring the safety of the vehicle's power consumption, unnecessary high-voltage power-off is avoided, and the functions of the vehicle are retained to the greatest extent. In addition, in this embodiment, when multiple high-voltage devices are detected to be abnormal, the fault level of each high-voltage device that is abnormal is judged, and it is arbitrated to obtain the highest fault level, and the vehicle is controlled according to the highest fault level. Relevant processing effectiv...

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Abstract

The invention discloses a high-voltage interlocking detection device, a processing method and an automobile. The detection device comprises at least two high-voltage devices, at least two high-voltageinterlocking loop detection circuits and a controller, wherein one detection circuit is correspondingly connected with a high-voltage interlocking loop of one high-voltage device, and the controlleris connected with the at least two detection circuits; and the controller is used for acquiring voltage signals of the at least two detection circuits, determining whether a working state of the high-voltage device is abnormal or not according to the voltage signals, and making the automobile perform fault processing according to the working state of the high-voltage device. According to the embodiment of the invention, different processing measures can be taken according to the state of the current vehicle aiming at high-voltage interlocking loop faults of the different high-voltage devices so that the function of the whole automobile is reserved to the maximum extent while high-voltage safety is ensured, and the problem that driving control is influenced due to unexpected high-voltage power-off caused by a current high-voltage interlocking processing strategy is solved.

Description

technical field [0001] The invention relates to the technical field of high-voltage interlock detection, in particular to a high-voltage interlock detection device, a processing method and an automobile. Background technique [0002] With the rapid development of new energy vehicles, there are more and more high-voltage components on the vehicle, so the safety control of high-voltage components on the vehicle becomes more and more important. High-voltage interlock also refers to the dangerous high-voltage interlock circuit (HVIL , HazardousVoltage Interlock Loop): Check the electrical integrity and continuity of the high-voltage products, wires, connectors and covers of the vehicle by using electrical signals, and disconnect the high-voltage power in time when the circuit is identified as abnormal. [0003] At present, when a high-voltage interlock fault occurs in an electric vehicle, the vehicle must ensure that the high-voltage system is safely powered off in an appropriat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L3/00B60R16/023G01R31/00
CPCB60L3/00B60R16/0231G01R31/00
Inventor 何正伟张蓝文
Owner BEIJING ELECTRIC VEHICLE
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