Title:
LEAKAGE DETECTION SYSTEM OF CAR
Document Type and Number:
Japanese Patent JP2005020848
Kind Code:
A
Abstract:
To simplify circuit configuration for a reduced cost by dispensing with the dedicated power supply of a leakage detection device.
In the electric system of a car, a vehicle driving motor is driven with the electric power of an onboard DC power supply through an inverter, and the energized part containing a feeder line to the motor is electrically insulated from a car body. A leakage detection device 100A comprises 101a, 101b, 101c, CT102a, 102b, and 102c, and leakage sensors 110a, 110b, and 110c, with an AC voltage generated on the AC output side of an inverter 4 as a power source. The leakage detection device 100A senses leakage from the energized parts such as feeder lines 63P, 63N, 64a, 64b, and 64c to a car body 9.
Inventors:
UEHARA FUKASHI
NODA TOSHIYUKI
KOIE KAZUHIRO
NISHIYAMA YOICHIRO
UZAWA TAKESHI
NODA TOSHIYUKI
KOIE KAZUHIRO
NISHIYAMA YOICHIRO
UZAWA TAKESHI
Application Number:
JP2003180463A
Publication Date:
January 20, 2005
Filing Date:
June 25, 2003
Export Citation:
Assignee:
FUJI ELECTRIC SYSTEMS CO LTD
International Classes:
H02J7/00; B60L3/00; H02H3/16; (IPC1-7): H02H3/16; B60L3/00; H02J7/00
Attorney, Agent or Firm:
Yuichi Morita