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. 28, 2006
Filed:
Nov. 24, 2003
Shoji Inagaki, Toyota, JP;
Kenji Asano, Susono, JP;
Shoji Inagaki, Toyota, JP;
Kenji Asano, Susono, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
In a vehicular brake force control apparatus, an engine brake force Feb is calculated; a road surface friction coefficient μ and a rear wheel degree of grip εr is calculated; and a threshold value Ke is calculated such that the threshold value Ke increases as the road surface friction coefficient μ becomes smaller. When the rear wheel degree of grip εr is smaller than the threshold value Ke, it is determined that vehicle behavior of a vehicle is liable to become unstable when the engine brake force Feb acts. In this case, a sum of the engine brake force Feb and a target friction brake force Fbv based upon a steering operation amount of a driver is distributed to each wheel in accordance with a distribution that stabilizes the vehicle behavior of the vehicle. Based on this distribution result, a friction brake force and an output torque of the engine are controlled.