US 12,145,437 B2
System and method for handling disengagement and engagement between a PTO system and a traction system in an at least partly electrically operated vehicle
Branko Ban, Gothenburg (SE); and Marinko Culjak, Gothenburg (SE)
Assigned to VOLVO TRUCK CORPORATION, Gothenburg (SE)
Filed by VOLVO TRUCK CORPORATION, Gothenburg (SE)
Filed on Feb. 16, 2022, as Appl. No. 17/651,354.
Claims priority of application No. 21157659 (EP), filed on Feb. 17, 2021.
Prior Publication US 2022/0258602 A1, Aug. 18, 2022
Int. Cl. B60K 17/28 (2006.01); B60W 20/20 (2016.01); B60W 20/40 (2016.01); B60W 30/188 (2012.01)
CPC B60K 17/28 (2013.01) [B60W 20/20 (2013.01); B60W 20/40 (2013.01); B60W 30/1888 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A system for handling disengagement and engagement between a Power Take Off (PTO) system and a traction system in an at least partly electrically operated vehicle,
the traction system comprises at least one electric machine comprising at least two winding coils, and wherein the traction system comprises a first switch and a second switch,
wherein the system is adapted to disengage the PTO system and the traction system from each other when the at least partly electrically operated vehicle is in driving mode, and
wherein the system is adapted to engage the PTO system and the traction system to each other and thereby providing electrical power from the system to at least one external load when the at least one electrically operated vehicle is in stop mode,
when the at least partly electrically operated vehicle is in driving mode, then:
the first switch is adapted to be in closed state such that the at least two winding coils are connected in parallel and the at least one electric machine is adapted to be used for traction of the at least partly electrically operated vehicle, and
the second switch is adapted to be in open state such that the PTO system is disengaged from the at least one external load.