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:
Oct. 01, 2013
Filed:
Jun. 29, 2010
Andrew Karl Wilhelm Rekow, Cedar Falls, IA (US);
Troy Eugene Schick, Cedar Falls, IA (US);
Richard Vallieres, Waterloo, IA (US);
Timothy Diller, Waterloo, IA (US);
Andrew Karl Wilhelm Rekow, Cedar Falls, IA (US);
Troy Eugene Schick, Cedar Falls, IA (US);
Richard Vallieres, Waterloo, IA (US);
Timothy Diller, Waterloo, IA (US);
Deere & Company, Moline, IL (US);
Abstract
A brake control system is provided for a utility vehicle having manned and unmanned operational modes. The brake control system includes a hydraulically operated brake. A manually operated brake circuit and an electro-hydraulic (E-H) brake circuit are connected to the brake. The E-H brake circuit includes a pump, a solenoid operated inlet valve, an accumulator, and first and second solenoid operated brake valve connected between the brake and the inlet valve. A first CPU is operatively connected to the inlet valve and to the first brake valve. A second CPU is operatively connected to the inlet valve and to the second brake valve. An accumulator pressure sensor senses the accumulator pressure. A brake pressure sensor senses brake pressure. The first and second CPUs control the inlet valve and the brake valves as a function of the sensed accumulator pressure and brake pressure.