Steering angle detecting apparatus for motor vehicles based on the phase difference between a steering angle detection signal and steering angle estimated signal

U.S. Patent Number: 5343393

Abstract: A steering angle detecting apparatus for accurately and surely detecting a steering angle of a motor vehicle. The apparatus is equipped with a turning angle detector for detecting a turning angle of a steering wheel of the motor vehicle. In addition, the apparatus estimates a turning angle of the steering wheel on the basis of the difference in speed between left and right wheels of the motor vehicle so as to calculate the difference in phase between the detection turning angle and the estimation turning angle. For detecting the accurate vehicle steering angle, the detection turning angle is corrected on the basis of the calculated phase difference therebetween.

Inventors: Hirano; Hiroyuki (Kariya, JP), Tsuzuki; Yoshihiko (Toyota, JP), Haseda; Satoshi (Okazaki, JP), Fukushima; Akira (Kariya, JP), Inoue; Hideo (Ashigarakami, JP), Takeda; Osamu (Susono, JP)

Assignee: Nippondenso Co., Ltd. (Kariya, JP)

Application Number: 07/710,179

Issued: 1994-08-30

Expired: 2006-08-30

Classes: 701/41 ; 180/413; 180/446

Field of search: 364/424.05,424.01,569,559 180/140,141,142,143,79.1 280/91 73/1E

Click the image above to view patent images at uspto.gov within a frame.

Click here for the fulltext page on uspto.gov within a frame.