Title:
ELECTROMAGNETIC TYPE POWER BOOSTING DEVICE
Document Type and Number:
Japanese Patent JPS6181865
Kind Code:
A
Abstract:
PURPOSE:To prevent hunting in a low torque operating range, by defining the dead zone of signals which determine the energizing amount of current for an armature in an electrically driven PS device, wider than the dead zone of signals which determine the energizing direction of the armature current. CONSTITUTION:When a torque is applied externally to an input shaft 1 so that the torque is detected by a torque detecting section 13 between input and output shafts 1, 4, an armature current is fed to a winding 25 under operation of a control circuit. Accordingly, a motor 20 is driven so that a rotor 26 rotates in the same direction as that of the input shaft 1. The armature current which is fed to an armature 20 from the control circuit is proportional to a voltage applied to an armature drive circuit. However, since the dead zone of the input voltage is made wider than the dead zone of the voltage which controls the energizing direction, the armature current may be stably fed so that a smooth steering operation may be effected.
Inventors:
SHIMIZU YASUO
Application Number:
JP17081284A
Publication Date:
April 25, 1986
Filing Date:
August 16, 1984
Export Citation:
Assignee:
HONDA MOTOR CO LTD
International Classes:
B62D5/04; H02K23/06; (IPC1-7): B62D5/04
Attorney, Agent or Firm:
Yoichiro Shimoda