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:
Feb. 05, 2019
Filed:
Oct. 11, 2013
Volvo Truck Corporation, Göteborg, SE;
Fredrik Karpenman, Västra Frölunda, SE;
Volvo Truck Corporation, Göteborg, SE;
Abstract
A method is provided for preselecting a gear in a multi-clutch transmission of a vehicle upon exiting free-wheeling state, wherein the multi-clutch transmission being operated in a free-wheeling state having a gear of a first set of gears preselected and a first friction clutch being disengaged; the method including the steps of: A) upon determining that at least one predetermined condition for exiting free-wheeling state is met; increasing the rotational speed of the prime mover towards a rotational synchronization speed of the preselected gear; the second friction clutch being in a closed state such that the rotational speed of the input shaft of the second friction clutch increases with the increasing rotational speed of the prime mover; B) disengaging the second friction clutch; C) engaging, at a suitable time point, at least one tooth clutch of the second subset of the tooth clutches corresponding to a gear of the second set of gears such that the gear of the second set of gears becomes preselected.