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. 28, 1992
Filed:
May. 08, 1990
Masao Watanabe, Nagoya, JP;
Kazunori Sakai, Aichi, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi, JP;
Abstract
A vehicle anti-lock brake control apparatus including a two-position direction control valve disposed between a wheel brake cylinder and a hydraulic pressure source, for increasing and decreasing the brake cylinder pressure, a slip detector for detecting a slip condition of the wheel, a controller for controlling the valve so as to prevent excessive slipping of the wheel, an averaging device for obtaining an average value of the wheel acceleration during a period until the detected slip condition deteriorates to a predetermined reference condition, and a device for determining a pressure decrease time substantially in reverse proportion to the average value of the wheel acceleration obtained when the slip condition has deteriorated to the reference condition, and supplying the controller with the determined pressure decrease time.