Title:
POWER UNIT FOR ELECTRIC VEHICLE
Document Type and Number:
Japanese Patent JPH09163597
Kind Code:
A
Abstract:
To prevent the damage of load caused by the application of overvoltage.
A voltage detecting circuit 5 is connected on the main battery side 3 from a main relay 4 so that the voltage of the main battery 3 may be detected even if the main relay 4 is not turned on. Moreover, a relay 15 is connected in the course to let the current from the key switch 8 for turning on the main switch 4 flow, and this is turned on when the output that it is not overvoltage is produced. Hereby, in case of overvoltage, the main relay 4 is not turned on and overvoltage is not applied to load, because the relay 15 is off.
Inventors:
KOSHIZAWA TOSHIBUMI
Application Number:
JP33810795A
Publication Date:
June 20, 1997
Filing Date:
November 30, 1995
Export Citation:
Assignee:
ISUZU MOTORS LTD
International Classes:
H02H11/00; B60L3/00; B60L9/18; (IPC1-7): H02H11/00; B60L3/00; B60L9/18
Attorney, Agent or Firm:
Tomio Honjo