The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 08, 2012
Filed:
Jun. 10, 2008
Hiroyuki Ukai, Nagoya, JP;
Yoshifumi Morita, Nagoya, JP;
Makoto Iwasaki, Nagoya, JP;
Nobuyuki Matsui, Nagoya, JP;
Norio Tsuchida, Nagoya, JP;
Yuya Yamamoto, Nagoya, JP;
Jiro Hayashi, Aichi-ken, JP;
Akihiko Sawada, Anjo, JP;
Nobuhiko Makino, Anjo, JP;
Hiroyuki Ukai, Nagoya, JP;
Yoshifumi Morita, Nagoya, JP;
Makoto Iwasaki, Nagoya, JP;
Nobuyuki Matsui, Nagoya, JP;
Norio Tsuchida, Nagoya, JP;
Yuya Yamamoto, Nagoya, JP;
Jiro Hayashi, Aichi-ken, JP;
Akihiko Sawada, Anjo, JP;
Nobuhiko Makino, Anjo, JP;
National University Corporation Nagoya Institute of Technology, Nagoya, JP;
Denso Corporation, Kariya, JP;
Abstract
There is provided a control apparatus that controls a motor of an electric power steering system to assist a steering effort of an operator. The control apparatus includes a sensor, a parameter computer, a difference computer, a target torque computer, and a motor driver. The parameter computer computes a current value of one of physical parameters of one of constituents of the electric power steering system based on a steering parameter determined by the sensor referring to an equation of motion. The difference computer computes a difference between the current value of the one of the physical parameters computed by the parameter computer and a predetermined value of the one of the physical parameters. The target torque computer computes a target torque of the motor which compensates for the difference between the current value and the predetermined value of the one of the physical parameters.