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. 07, 2020
Filed:
Jul. 02, 2018
Ford Global Technologies, Llc, Dearborn, MI (US);
Cyril Coerman, Leverkusen, DE;
Lucian Lippok, Cologne, DE;
Robert Barend Ter Waarbeek, Pulheim, DE;
Georg Johann Maurer, Cologne, DE;
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A method is described for controlling the automatic starting of a motor vehicle comprising an electronically controllable locking differential, uphill in a split mu situation. The method comprises the following steps: determining the positive gradient of the underlying surface; defining an initial locking torque on the basis of the determined positive gradient and on the basis of a component of the torque which the vehicle requires to travel uphill with only the first driven wheel powered; calculating the slip ratio SRfor the first driven wheel xx according to SR=(V−V)/Vif the reference velocity Vis between 0 and a critical velocity V, and according to SR=(V−V)/Vif the reference velocity Vis higher than the critical velocity V; and defining the locking torque of the electronically controllable locking differential on the basis of the slip ratio of the first driven wheel.