Electric vehicle, insulation detection method, apparatus and system thereof
A technology for electric vehicles and detection results, which is applied in the direction of measuring devices, high resistance measurement, and measurement of electrical variables. It can solve problems such as high-voltage component damage and personnel electric shock, so as to improve safety, avoid manual insulation detection, and avoid personnel. Effects of electric shock and damage to high voltage components
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Embodiment 1
[0028] According to an embodiment of the present invention, an embodiment of an insulation detection method for an electric vehicle is provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, Also, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.
[0029] figure 1 It is a flow chart of an insulation detection method for an electric vehicle according to an embodiment of the present invention, such as figure 1 As shown, the method includes the following steps:
[0030] Step S102, receiving a closing command sent by the diagnostic instrument, wherein the closing command is used to instruct to close the first relay or the second relay inside the battery pack of the electric vehicle.
[0031] Specifically, the above-mentioned first r...
Embodiment 2
[0087] According to an embodiment of the present invention, an embodiment of an insulation detection device for an electric vehicle is provided.
[0088] Figure 4 is a schematic diagram of an insulation detection device for an electric vehicle according to an embodiment of the present invention, such as Figure 4 As shown, the device includes:
[0089] The first receiving module 41 is configured to receive a closing instruction sent by the diagnostic instrument, wherein the closing instruction is used to instruct to close the first relay or the second relay inside the battery pack of the electric vehicle.
[0090] Specifically, the above-mentioned first relay can be the main positive relay inside the battery pack; the above-mentioned second relay can be the main negative relay inside the battery pack, such as figure 2 shown.
[0091] In an alternative, such as figure 2 As shown, in the ON state, the main positive relay and the main negative relay inside the battery pack...
Embodiment 3
[0125] According to an embodiment of the present invention, an embodiment of an insulation detection system for an electric vehicle is provided.
[0126] Figure 5 is a schematic diagram of an insulation detection system for an electric vehicle according to an embodiment of the present invention, such as Figure 5 As shown, the system includes:
[0127] The diagnostic instrument 51 is configured to send a closing instruction, wherein the closing instruction is used to instruct to close the first relay or the second relay inside the battery pack of the electric vehicle.
[0128] Specifically, the above-mentioned first relay can be the main positive relay inside the battery pack; the above-mentioned second relay can be the main negative relay inside the battery pack, such as figure 2 shown.
[0129] In an alternative, such as figure 2 As shown, in the ON state, the main positive relay and the main negative relay inside the battery pack are in the disconnected state. When t...
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