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:
Nov. 08, 2022
Filed:
Mar. 31, 2020
Transportation Ip Holdings, Llc, Norwalk, CT (US);
Jeffrey John Wolff, Erie, PA (US);
Timothy Brown, Erie, PA (US);
Henry Young, Erie, PA (US);
Lindsay Short, Erie, PA (US);
Edward Thomas Petrak, Lawrence Park, PA (US);
Ronald Fischer, Fairview, PA (US);
Michael Wagner, Erie, PA (US);
Justin Chadwell, Draper, VA (US);
Carlos Vallejo, Erie, PA (US);
Sean Cillessen, Erie, PA (US);
Larry Bench, Casper, WY (US);
Kenneth Paul Nedley, Lawrence Park, PA (US);
Ajith Kuttannair Kumar, Erie, PA (US);
Transportation IP Holdings, LLC, Norwalk, CT (US);
Abstract
A vehicle control system determines an upper non-zero limit on deceleration of a vehicle to prevent rollback of the vehicle down a grade being traveled up on by the vehicle. The upper non-zero limit on deceleration is determined by the controller based on a payload carried by the vehicle, a speed of the vehicle, and a grade of a route being traveled upon by the vehicle. The controller is configured to monitor the deceleration of the vehicle, and to automatically prevent the deceleration of the vehicle from exceeding the upper non-zero limit by controlling one or more of a brake or a motor of the vehicle. The controller also is configured to one or more of actuate the brake or supply current to the motor of the vehicle to prevent rollback of the vehicle while the vehicle is moving up the grade at a non-zero speed.