公开(公告)号：US20220135004A1

公开(公告)日：2022-05-05

申请号：US17426641

申请日：2020-11-24

Applicant: MITSUBA Corporation ,  MAZDA MOTOR CORPORATION

Inventor： Masahiro YAMADA ,  Takeshi IKEDA ,  Narimitsu KOBORI ,  Eisuke IINO ,  Minoru HOSHINO ,  Keisuke KONDOU ,  Ippei YAMAUCHI

IPC: B60S1/08 ,  B60S1/04

Abstract: A wiper control method and a wiper control device are provided. An arm falling position for stopping wiper arms for a predetermined time is set above a lower reversal position. When the wiper arms stopped on the side of an upper reversal position with respect to the arm falling position, such as a service position, are moved to a storage position set below the lower reversal position, or when a wiping operation is to be performed again, the wiper arms are temporarily stopped for the predetermined time at the arm falling position. Then, after the predetermined time elapses, the wiper arms are moved to the storage position in the case of a storage operation, and moved to the upper reversal position in the case of restarting, and then the normal wiping operation is performed.

公开(公告)号：US20240123943A1

公开(公告)日：2024-04-18

申请号：US18327880

申请日：2023-06-01

Applicant: MITSUBA Corporation

Inventor： Ryo OHORI ,  Toshiyuki AMAGASA ,  Masahiro YAMADA ,  Atsushi MOCHIDA ,  Tamotsu IWAZAKI

IPC: B60S1/08

CPC classification number: B60S1/08

Abstract: A motor control device includes a driving control part and an upper limit value setting part. The driving control part controls motor driving by switching between a first driving mode and a second driving mode, and controls an output duty ratio so as not to exceed a duty ratio upper limit value. The upper limit value setting part sets, as the duty ratio upper limit value, a low rotation duty ratio upper limit value, a maximum duty ratio upper limit value corresponding to a maximum output value, and an upper limit value of a transition period from the low rotation duty ratio upper limit value to the maximum duty ratio upper limit value, and changes slope information indicating a change amount in the upper limit value of the transition period according to the driving mode when switching between the first driving mode and the second driving mode.