公开(公告)号：US11162293B2

公开(公告)日：2021-11-02

申请号：US16471235

申请日：2018-02-07

Applicant: DENSO CORPORATION

Inventor： Shigeru Sugiyama ,  Hiromichi Ono

IPC: E05F15/00 ,  E05F15/695 ,  E05F15/41 ,  H02P27/08

Abstract: An open-close body driving motor includes: a motor main body; a driving circuit; and a control circuit that adjusts driving power using PWM control and controls an operation mode of the open-close body to be changeable through the motor main body. The control circuit includes a PWM control unit, and a catch processing unit that determines catching by the open-close body and performs a catch process. When an operation command of the open-close body is created in a state in which a catch prevention function is not operated, the PWM control unit of the control circuit vibrates the motor main body in an audible range, such that the motor main body performs a sound-emitting operation, by including the frequency of the audible range in the control frequency for the PWM control before or during an operation of the open-close body, the operation being based on the operation command.

公开(公告)号：US10883302B2

公开(公告)日：2021-01-05

申请号：US16073090

申请日：2017-03-16

Applicant: DENSO CORPORATION

Inventor： Shigeru Sugiyama ,  Yutaka Naito ,  Ritsurou Hiramatsu ,  Teruyuki Toyoda ,  Motoya Yamamoto ,  Nobuo Mizutani

IPC: E05F15/697 ,  E05F15/70 ,  B60J1/17 ,  H02P7/03 ,  H02P7/29 ,  B60Q9/00

Abstract: An opening-closing body driving motor includes a motor body, a drive circuit, and a control circuit. The motor body is provided to automatically open and close an opening-closing body of a vehicle. The drive circuit supplies driving power to the motor body. The control circuit includes a PWM controller. The control circuit is configured to adjust the driving power by PWM control and control an operation mode of the opening-closing body through the motor body such that the operation mode is changeable. The PWM controller is configured to have a control frequency of the PWM control include a frequency in an audible range based on a predetermined trigger so that the motor body vibrates in the audible range, thereby performing a sound producing operation. The predetermined trigger includes information about an opening-closing state of the opening-closing body or information about activation and deactivation of a child lock.