公开(公告)号：US20240242867A1

公开(公告)日：2024-07-18

申请号：US18559837

申请日：2022-05-16

Applicant: Scania CV AB

Inventor： Jens GUSTAVSSON ,  Kurre KÄLLKVIST ,  Joakim SVANTESSON ,  Erik JANSSON

IPC: H01F7/06 ,  F02D41/20 ,  F02M51/06 ,  F16K31/06 ,  H01F7/08 ,  H01F7/16

CPC classification number: H01F7/064 ,  F02D41/20 ,  F02M51/061 ,  F16K31/0675 ,  H01F7/081 ,  H01F7/1607 ,  F02D2041/2051 ,  F02D2041/2058

Abstract: The disclosure proposes a method for controlling discharge of a solenoid valve arranged in a vehicle, wherein the solenoid valve comprises an inductor and a plunger arranged to be moved by the inductor from a hold position to a rest position, whereby the solenoid valve is opened or closed. The method comprises stepwise discharging the inductor by discharging the inductor at a slow decay rate during an operating time period during which a final part of a movement of the plunger from the hold position to the rest position takes place. The method further comprises discharging the inductor at a fast decay rate during at least one other time period, wherein the plunger is stagnant during at least a part of said other time period, wherein the fast decay rate is faster than the slow decay rate.