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. 08, 2015
Filed:
Mar. 14, 2014
Robert Bosch Gmbh, Stuttgart, DE;
Jingsheng Yu, Northville, MI (US);
Ryan Kuhlman, Novi, MI (US);
Pablo Luis Guarnizo Martinez, Novi, MI (US);
Louis A. Rhodes, Farmington Hills, MI (US);
David M. McGuire, Birch Run, MI (US);
Miles A. Christmas, Commerce, MI (US);
Patrick G. Larochelle, White Lake, MI (US);
Mark C. Luscomb, Fenton, MI (US);
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A hill hold decay (HDD) system of a vehicle. The system includes a longitudinal acceleration sensor, a wheel speed sensor, a brake pedal detector, a gas pedal detector, a gear sensor, and a controller. The controller is configured to determine the vehicle has come to a standstill, determine a slope of the ground the vehicle is on, determine a direction of travel of the vehicle is downhill, detect a release of a brake release a brake force applied to a plurality of wheels of the vehicle at a constant first rate, determine a speed of the vehicle has reached a minimum threshold, release the brake force at a second rate as long as the speed of the vehicle is increasing, determine the speed of the vehicle has reached a maximum threshold, and release the brake force.