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:
Nov. 12, 2013
Filed:
Nov. 11, 2009
Satoshi Matsushita, Wako, JP;
Satoshi Matsushita, Wako, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A brake device for a vehicle is provided in which a slave cylinder stroke-target motor rotational angle conversion means (M) converts a target stroke for a slave cylinder into a target rotational angle for an electric motor, and a target electric motor control means (M) carries out rotational angle feedback control of operation of an electric motor in order to make an actual rotational angle of the electric motor detected by an actual rotation angle sensor (Sd) converge to a target rotation angle. In this process, since a communication means (M) formed of CAN transmits an actual brake fluid pressure detected by a fluid pressure sensor (Sb) at predetermined time intervals, and correction means (M, M) corrects the target rotation angle for the electric motor (the target stroke for the slave cylinder) based on a difference or a ratio of the actual brake fluid pressure and the target brake fluid pressure that is transmitted by the communication means (M), it is possible to make the slave cylinder generate brake fluid pressure according to the driver braking operation state without being influenced by individual differences of the slave cylinder, change over time of the slave cylinder, or environmental conditions such as temperature.