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:
Jul. 29, 2025
Filed:
Nov. 17, 2023
Zf Active Safety Us Inc., Livonia, MI (US);
Douglas Osborn, Livonia, MI (US);
Daniel L. Hopper, Bay Village, OH (US);
ZF Active Safety US Inc., Livonia, MI (US);
Abstract
A method of operating a vehicle brake system having multiple wheel brakes includes providing a plunger assembly having a plunger and a chamber fluidly connected to at least one of the wheel brakes. An evacuation of at least one of the wheel brakes is performed by moving the plunger relative to the chamber under control of an electronic control unit (ECU) to generate a vacuum from the chamber to the at least one wheel brake. Pressurized brake fluid is supplied from a reservoir to the evacuated wheel brakes by moving the plunger relative to the chamber under control of the ECU once all the wheel brakes are evacuated.