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.

Date of Patent:
Sep. 08, 1998

Filed:

Sep. 18, 1996
Applicant:
Inventors:

Yutaka Horiuchi, Wako, JP;

Yutaka Maruyama, Wako, JP;

Susumu Takahashi, Wako, JP;

Yoshikazu Nojiri, Wako, JP;

Ryo Suzuki, Wako, JP;

Toshio Yahagi, Wako, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60T / ;
U.S. Cl.
CPC ...
303173 ; 701 75 ;
Abstract

In an anti-lock brake control system for a vehicle, first presumed vehicle speeds are calculated in first vehicle speed calculating devices for every wheel based on wheel speeds detected by wheel speed detecting sections. A second presumed vehicle speed is calculated in a second vehicle speed calculating device based on the value of a lower one of the first presumed vehicle speeds calculated in the first vehicle speed calculating devices corresponding to the left and right rear wheels. A higher one of the first presumed vehicle speeds calculated in each of the first vehicle speed calculating devices and the second presumed vehicle speed calculated in the second vehicle speed calculating device is selected as a presumed vehicle speed corresponding to the wheel in a high-select device. The operations of actuators are controlled based on results of calculation of slip rates of wheels based on presumed vehicle speeds and wheel speeds for every wheel. Thus, when a different-diameter tire has been mounted on any of the wheels, a presumed vehicle speed can be presumed with good accuracy to carry out an appropriate anti-lock brake control.


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