公开(公告)号：US20200208739A1

公开(公告)日：2020-07-02

申请号：US16812616

申请日：2020-03-09

Applicant: DENSO CORPORATION

Inventor： Masashi NAKAGAWA ,  Fuminori SUZUKI ,  Kengo TAKEI

IPC: F16H61/02 ,  G01R19/00

Abstract: A current control device brings, after a target current has been changed to an upper side, a solenoid into a full-on state at a first timing that arrives in a predetermined control transition cycle shorter than an on-off cycle, determines whether an excitation current has become equal to or larger than a full-on threshold larger than the target current, brings the solenoid into a full-off state at a first timing that arrives in a predetermined energization switching cycle shorter than the on-off cycle after the excitation current has become equal to or larger than the full-on threshold, determines whether the excitation current has become equal to or smaller than a full-off threshold smaller than the target current, and causes a transition to a steady control at a first timing that arrives in the control transition cycle after the excitation current has become equal to or smaller than the full-off threshold.