05939853 is referenced by 6 patents and cites 5 patents.

In the process steps a tentative value (m) of a deviation in a turning angle of a rotor of the stepping motor is determined each time the stepping motor runs. A cumulative amount of the tentative values (m) forms an estimated value (S) of the deviation in the turning angle of the rotor of the stepping motor. This estimated value (S) of the stepping motor. This estimated value (S) of the deviation is stored in a predetermined memory area. When an ignition switch is turned on, it is judged whether or not the estimated value (S) of the deviation thus stored until the ignition switch is turned on, exceeds a predetermined value. When it is judged that such estimated value (S) exceeds the predetermined value, an initial setting of the stepping motor is made.

Title
Method and apparatus for controlling a stepping motor, and a recording medium storing a program for carrying out the method
Application Number
8/838051
Publication Number
5939853
Application Date
April 22, 1997
Publication Date
August 17, 1999
Inventor
Kunio Mizuno
Kohnan-machi
JP
Mamoru Masauji
Kohnan-machi
JP
Agent
Wenderoth Lind & Ponack L
Assignee
Zexel Corporation
JP
IPC
G05B 19/40
View Original Source