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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 12128860 B1

PDFFull Text
Date of Patent:
Oct. 29, 2024

Filed:

Mar. 01, 2021

Hydraulic brake boost

Applicant:

Zf Active Safety Us Inc., Livonia, MI (US);

Inventor:

Blaise Joseph Ganzel, Ann Arbor, MI (US);

Assignee:

ZF ACTIVE SAFETY US INC, Livonia, MI (US);

Attorney:

Kristin L. Murphy

Primary Examiner:

Bradley T King

Int. Cl.
CPC ...
B60T 13/74 (2006.01); B60T 7/04 (2006.01); B60T 8/17 (2006.01); B60T 8/176 (2006.01); B60T 8/40 (2006.01); B60T 11/16 (2006.01); B60T 13/14 (2006.01); B60T 13/58 (2006.01); B60T 13/68 (2006.01); B60T 15/02 (2006.01); B60T 17/22 (2006.01); G05D 16/04 (2006.01); F16K 11/07 (2006.01);
U.S. Cl.
CPC ...
B60T 13/588 (2013.01); B60T 7/042 (2013.01); B60T 8/17 (2013.01); B60T 8/176 (2013.01); B60T 8/409 (2013.01); B60T 11/165 (2013.01); B60T 13/147 (2013.01); B60T 13/686 (2013.01); B60T 13/746 (2013.01); B60T 15/028 (2013.01); B60T 17/221 (2013.01); G05D 16/0404 (2019.01); B60T 2270/10 (2013.01); B60T 2270/402 (2013.01); B60T 2270/404 (2013.01); B60T 2270/406 (2013.01); B60T 2270/82 (2013.01); F16K 11/07 (2013.01);
Abstract

A brake system for actuating front and rear wheel brakes includes a reservoir and a master cylinder operable by actuation of a brake pedal connected to the master cylinder to generate brake actuating pressure at a first output for hydraulically actuating the front wheel brakes. A power transmission unit is configured for selectively providing pressurized hydraulic fluid for actuating the front wheel brakes. A pair of rear brake motors selectively electrically actuate respective rear wheel brakes. An electronic control unit controls at least one of the power transmission unit and the rear brake motors. A two-position three-way valve is hydraulically connected with the master cylinder and the power transmission unit and with the front wheel brakes. The three-way valve selectively controls hydraulic fluid flow from a chosen one of the master cylinder and the power transmission unit to at least one of the front wheel brakes.

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