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:
Sep. 03, 2024
Filed:
Jul. 03, 2018
Hitachi Automotive Systems, Ltd., Hitachinaka, JP;
Fumiyuki Matsumura, Tokyo, JP;
Hitachi Astemo, Ltd., Hitachinaka, JP;
Abstract
To enable achievement of stable braking regardless of influences by aging or the like of a brake device. There is provided a brake ECUfor a vehiclewith a brake devicethat can adjust a break force depending on fed hydraulic pressure, the vehicleincluding: a master pressure sensorconfigured to measure hydraulic pressure fed to the brake device; and a G sensorand a wheel speed sensorconfigured to be capable of detecting acceleration of the vehicleand measure acceleration information, the brake ECUbeing configured to include: a pressure command value computation portionconfigured to determine a hydraulic pressure fed to the brake deviceat a time of deceleration of the vehicleon a basis of a preset coefficient and cause the determined hydraulic pressure to be fed to the brake device; and a brake torque coefficient computation portionconfigured to learn a coefficient candidate, which is a candidate to change the coefficient, and change the coefficient to the coefficient candidate on a basis of a relationship between the hydraulic pressure and the acceleration.