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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.:

US 10850718 B1

PDFFull Text
Date of Patent:
Dec. 01, 2020

Filed:

May. 26, 2017

Electric brake apparatus

Applicant:

Hitachi Automotive Systems, Ltd., Ibaraki, JP;

Inventors:

Daisuke Goto, Atsugi, JP;

Takuya Usui, Yokohama, JP;

Assignee:

HITACHI AUTOMOTIVE SYSTEMS, LTD., Ibaraki, JP;

Attorney:

Wenderoth, Lind & Ponack, L.L.P.

Primary Examiner:

Christopher P Schwartz

Int. Cl.
CPC ...
B60T 13/74 (2006.01); B60T 8/17 (2006.01); B60T 7/04 (2006.01); B60T 7/12 (2006.01); B60T 8/171 (2006.01); B60T 8/172 (2006.01); B60T 8/40 (2006.01); B60T 13/66 (2006.01); B60T 7/22 (2006.01);
U.S. Cl.
CPC ...
B60T 8/17 (2013.01); B60T 7/042 (2013.01); B60T 7/12 (2013.01); B60T 8/171 (2013.01); B60T 8/172 (2013.01); B60T 8/4081 (2013.01); B60T 13/66 (2013.01); B60T 13/745 (2013.01); B60T 7/22 (2013.01); B60T 2201/06 (2013.01); B60T 2270/10 (2013.01); B60T 2270/20 (2013.01); B60T 2270/30 (2013.01); B60T 2270/82 (2013.01);
Abstract

An electric brake apparatus includes an electronic control unit (ECU) configured to move a power piston to cause a braking hydraulic pressure to be generated in a master cylinder by controlling an electric motor of an electric actuator based on an operation on a brake pedal (an input member position). A characteristic update processing portion of the ECU is configured to update, based on an operation amount of the brake pedal, characteristic data indicating a relationship between a hydraulic value transmitted from the ECU via a vehicle data bus and a movement amount of the power piston controlled based on the input member position, and store the updated characteristic data. The ECU is configured to control the electric actuator based on the updated characteristic data when an automatic brake instruction is input.

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