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:
Jan. 13, 2009
Filed:
Jun. 26, 2006
Katsuhiko Iwazaki, Namazu, JP;
Seiji Kawakami, Susono, JP;
Hiroaki Kataoka, Susono, JP;
Chumsamutr Rattapon, Susono, JP;
Katsuhiko Iwazaki, Namazu, JP;
Seiji Kawakami, Susono, JP;
Hiroaki Kataoka, Susono, JP;
Chumsamutr Rattapon, Susono, JP;
Toyota Jidosha Kabushiki Kaisha, Tokyo, JP;
Abstract
When an integral calculation of a physical quantity representing a state of a controlled system is performed, two integral calculations, that is, a positive-integral calculation and a negative-integral calculation are performed. In this way, differentiated information can be obtained, depending on the control conditions. A selection of which one of the integral value obtained by the positive-integral calculation and the integral value obtained by the negative-integral calculation is used, is made on the basis of an actual control value and a desired control value when control is performed so that a value representing the state of the controlled system becomes equal to the desired control value. In this way, a control parameter which has been judged to include a phase delay is removed. Thus, the phase delay in the overall control can be suppressed, and an appropriate steering assist control can be performed, for example.