Title:
【発明の名称】電動車のコンタクタ制御装置
Document Type and Number:
Japanese Patent JP2737078
Kind Code:
B2
Abstract:
PURPOSE:To eliminate response delay of accelerator, by performing optimal switching control of motor control contacts. CONSTITUTION:Upon switching of an accelerator switch 2 from NC side to NO side, a relay 15 functions immediately to switch a relay contact 16 from NC side to NO side thus producing pulses C. Consequently, a flipflop 23 is set. On the other hand, contactors 3, 4 function in about 70mS. A signal (e) rises upon elapse of 70mS after switching of its contact 27 from NC side to NO side. Consequently, the flipflop 23 is reset and a 50mS signal (g) is produced from an OSM circuit 26. Output from a comparator 12 is brought to high level upon elapse of 50mS after low level interval of the signals (e), (g), and a power transistor 11 is conducted upon closure of contactor contacts 5, 6.
Inventors:
YAMADA YOSHIMITSU
Application Number:
JP7866388A
Publication Date:
April 08, 1998
Filing Date:
March 31, 1988
Export Citation:
Assignee:
SUZUKI KK
International Classes:
B60L15/20; (IPC1-7): B60L15/20
Attorney, Agent or Firm:
Takahashi Isamu