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:
Aug. 27, 1996
Filed:
Apr. 28, 1995
Kazumi Yasuzumi, Itami, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
An antilock brake control device comprising: a main microprocessor which forms a judgment on antilock control on the basis of wheel speed signals inputted from wheel speed sensors so as to output control signals to an actuator of a brake fluid pressure circuit in accordance with the judgment; a drive circuit for outputting drive signals to the actuator in response to the control signals; and a monitor for monitoring the control signals of the main microprocessor; wherein when a state in which the main microprocessor outputs to the actuator at least once during a first predetermined period the control signals for commanding pressure reduction or pressure holding has lasted continuously for not less than a second predetermined period, the monitor outputs, by judging that the main microprocessor does not function properly, a control prohibition signal for prohibiting operation of the drive circuit.