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:
Jun. 19, 1990
Filed:
Aug. 31, 1988
Seiichi Ishizeki, Ashikaga, JP;
Fuji Jukogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
For checking the operation of an anti-skid system of a motor vehicle, each wheel of the vehicle is placed on rollers of a brake tester. When a brake pedal is depressed to deliver via a brake pedal switch a signal having a predetermiend signal pattern to a control unit, a pseudo signal generating circuit provided in the control unit generates and sends to an actuator for a brake device a pressure reducing signal and a pressure-holding-and-increasing signal combined in a predetermined sequence whereby the brake device is actuated. Whether or not a normal anti-skid control is carried out is confirmed by measuring with the brake tester the braking force actually applied to each wheel in response to the signals delivered from the pseudo signal generating circuit.