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Patent Searching and Data


Title:
MOTOR CONTROLLER FOR MOTOR DRIVEN VEHICLE
Document Type and Number:
Japanese Patent JPH0865809
Kind Code:
A
Abstract:

PURPOSE: To automatically regeneratively brake in the case of accelerator OFF with a DC series motor as a power source.

CONSTITUTION: An exciting coil 92 and an armature coil 91 are connected in series via a diode bridge 7. A DC power source B is connected to the bridge 7 via an FET 3, and a current of a predetermined direction is fed to the coils 92, 91 by the rectifying operation of the bridge 7. A controller 10 repeats the operation of turning ON, OFF the FET 3 by PWM control to supply current from the source B to the coils 91, 92 and the operation of consuming electric energy stored in the coil 92, thereby applying a drive force to the armature. When an accelerator OFF is detected, the operation of turning ON, OFF an FET 4, closing or opening a circuit including the coils 91, 92 to consume the current induced in the coil 91, and the operation of returning the current to the source B are repeated.


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Inventors:
Fukaya, Mitsuo
Takechi, Hiroaki
Sasaki, Takami
Application Number:
JP1994000201174
Publication Date:
March 08, 1996
Filing Date:
August 25, 1994
Export Citation:
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Assignee:
YAMAHA MOTOR CO LTD
International Classes:
B60L7/12; B60L15/28; H02P3/14; H02P7/29; (IPC1-7): B60L7/12; B60L15/28; H02P7/29
Attorney, Agent or Firm:
川▲崎▼ 研二 (外1名)