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:
Oct. 11, 2011
Filed:
Feb. 10, 2009
Yuichi Mizuta, Shizuoka-ken, JP;
Motohiko Honma, Toyota, JP;
Wataru Tanaka, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-Shi, JP;
Aisin Seiki Kabushiki Kaisha, Kariya-Shi, Aichi-Ken, JP;
Abstract
A suspension ECUcalculates a target characteristic changing coefficient a_new for changing a target characteristic, which is represented by a quadratic function, by use of the maximum actual roll angle Φ_max generated in a vehicle body during the current turning state and a turning pitch angle Θ_fy_max which is a fraction of an actual pitch angle Θ generated as a result of turning, and changes the target characteristic by use of the coefficient a_new. Subsequently, the suspension ECUcalculates the difference ΔΘ between the actual pitch angle Θ and a target pitch angle Θh corresponding to the actual roll angle Φ on the basis of the changed target characteristic, and calculates a total demanded damping force F to be cooperatively generated by the shock absorbers so as to reduce the difference ΔΘ to zero. Furthermore, in proportion to the magnitude of a lateral acceleration Gl, the suspension ECUdistributes the total demanded damping force F into a demanded damping force Fi on the turning-locus inner side and a demanded damping force Fo on the turning-locus outer side.