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. 25, 2004
Filed:
Feb. 12, 2003
Kazuhiko Tazoe, Fujisawa, JP;
Hideo Nakamura, Yokohama, JP;
Junji Tsutsumi, Fujisawa, JP;
Hiroki Sasaki, Yokohama, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A brake control apparatus is configured to suppress fluctuations in the deceleration when transferring from cooperative braking to regenerative braking or hydraulic braking. The brake control apparatus calculates a braking torque command value feed forward component for reaching a target deceleration corresponding to the master cylinder pressure according to an ideal reference model. The brake control apparatus also calculates the braking torque command value feedback component to find a base deceleration for feeding back the difference between the base deceleration and the vehicle deceleration. The brake control apparatus then calculates the braking torque command value by adding the components together. After apportioning the braking torque command value into hydraulic and regenerative braking torque command values, the brake control apparatus phase compensates the braking torque command values to match their braking response characteristic with a vehicle model having a slower response characteristic than the ideal reference model.