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:
Dec. 20, 2016

Filed:

Jan. 04, 2008
Applicant:

Satoshi Matsushita, Saitama, JP;

Inventor:

Satoshi Matsushita, Saitama, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B60T 13/74 (2006.01); B60T 8/32 (2006.01); B60T 8/40 (2006.01); B60T 13/66 (2006.01); B60T 17/22 (2006.01);
U.S. Cl.
CPC ...
B60T 8/3275 (2013.01); B60T 8/4081 (2013.01); B60T 13/662 (2013.01); B60T 13/745 (2013.01); B60T 17/221 (2013.01); B60T 2201/03 (2013.01);
Abstract

A brake system includes an electric brake force generator which brakes a wheel using a driving force of an electric motor and an electric motor controller that performs a field-weakening control of the electric motor. The electric motor controller performs the field-weakening control of the electric motor which then operates the electric brake force generator. Thus, the rotational speed of the electric motor is increased when the field weakening control is performed by the electric motor controller thereby quickly activating the electric braking force generator to enhance response of brake force generation.


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