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:
Apr. 15, 2003
Filed:
Jun. 22, 2001
Kazushi Hosomi, Toyota, JP;
Akira Nagae, Susono, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A vehicle traction control apparatus and method where an amount of pressure change of braking pressure is based on the amount of acceleration slip and the wheel acceleration. When the traction control is being performed and the braking force is being increased, an upper limit pressure increase amount of braking pressure is based on the engine revolution speed, and the estimated braking pressure, so that the calculated value is smaller if the revolution speed or the estimated braking pressure is greater. The upper limit pressure increase amount of braking pressure is corrected so that it is greater if the speed reduction ratio of the transmission is smaller. If the amount of pressure change of requested braking pressure is excessively high, and the amount of increase in braking pressure needs to be limited, the amount of pressure change of braking pressure is limited to the corrected upper limit pressure increase amount.