Title:
GROUND FAULT DETECTION DEVICE
Document Type and Number:
Japanese Patent JP2019126105
Kind Code:
A
Abstract:
To detect ground fault of a motor wire more accurately than a conventional one.SOLUTION: A ground fault detection device detects ground fault of a motor wire which connects a travel motor, which generates travel power of a vehicle, and an inverter which drives the travel motor. According to the device, any one of plural switching elements, which constitute the inverter, is set to a conduction state in a stop state of the vehicle, and in this state, ground fault of the motor wire is detected based on a voltage of a smoothing capacitor which is provided at input of the inverter.SELECTED DRAWING: Figure 1
Inventors:
NAGAOKA TOMOKAZU
IKEDA TAKASHI
IKEDA TAKASHI
Application Number:
JP2018002903A
Publication Date:
July 25, 2019
Filing Date:
January 11, 2018
Export Citation:
Assignee:
KEIHIN CORP
International Classes:
B60L3/00; G01R31/02; H02M7/48
Attorney, Agent or Firm:
Shu Oikawa
Yuichiro Shimizu
Hisanori Takahashi
Yuichiro Shimizu
Hisanori Takahashi