Technique for insulation monitoring in vehicles

    公开(公告)号:US10509066B2

    公开(公告)日:2019-12-17

    申请号:US15903905

    申请日:2018-02-23

    摘要: A device, in at least two measuring intervals, detects a respective operating state of at least one power converter of the motor vehicle, which is conductively connected to the traction energy store. The device further comprises a measuring device having a measuring terminal, which is conductively connected or connectable to least one DC voltage pole of an electric traction energy store of the motor vehicle, and a ground terminal which is conductively connected or connectable to a reference potential of the motor vehicle. The measuring device, in the at least two measuring intervals, respectively measures a conductance between the measuring terminal and the ground terminal. The device further comprises a calculation device, which determines the insulation resistances as a function of the at least two measured conductances and the at least two operating states detected.

    TECHNIQUE FOR INSULATION MONITORING IN VEHICLES

    公开(公告)号:US20180246156A1

    公开(公告)日:2018-08-30

    申请号:US15903905

    申请日:2018-02-23

    IPC分类号: G01R31/00 G01R27/08

    摘要: A device, in at least two measuring intervals, detects a respective operating state of at least one power converter of the motor vehicle, which is conductively connected to the traction energy store. The device further comprises a measuring device having a measuring terminal, which is conductively connected or connectable to least one DC voltage pole of an electric traction energy store of the motor vehicle, and a ground terminal which is conductively connected or connectable to a reference potential of the motor vehicle. The measuring device, in the at least two measuring intervals, respectively measures a conductance between the measuring terminal and the ground terminal. The device further comprises a calculation device, which determines the insulation resistances as a function of the at least two measured conductances and the at least two operating states detected.

    Technique for insulation monitoring in vehicles

    公开(公告)号:US11091038B2

    公开(公告)日:2021-08-17

    申请号:US15919956

    申请日:2018-03-13

    摘要: A method and device for determining insulation resistances in a motor vehicle. The device includes a control device which, in at least two measuring intervals, controls a respective operating state of at least one power converter of the motor vehicle, which is conductively connected to the traction energy store. The device further comprises a measuring device having a measuring terminal, which is conductively connected or connectable to least one DC voltage pole of an electric traction energy store of the motor vehicle, and a ground terminal which is conductively connected or connectable to a reference potential of the motor vehicle. The measuring device, in the at least two measuring intervals, respectively measures a conductance between the measuring terminal and the ground terminal. The device further comprises a calculation device, which determines the insulation resistances as a function of the at least two measured conductances and the operating states controlled.