Title:
VEHICLE WIPER DEVICE AND METHOD FOR CONTROLLING VEHICLE WIPER DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/012770
Kind Code:
A1
Abstract:
This vehicle wiper device comprises a drive motor (11a) and a control circuit (13) that controls the rotational speed of the drive motor. This vehicle wiper device is configured so as to cause wipers (W1, W2) to swing reciprocatingly on the basis of rotary driving of the drive motor and perform a wiping motion on the outer surface of the windshield (FW) of the vehicle, and also so as to be capable of changing the speed of the wiping motion of the wipers between a first speed mode and a second speed mode, which is faster than the first speed mode, by controlling the rotational speed of the drive motor. A control circuit controls the rotational speed of the drive motor so that in the two end regions (A1, A2) including wiper swing reversal positions (P1, P2) and an intermediate region (A3) between the two end regions, the speed difference (Va1, Va2) in the rotational speed (VLx, VHx) of the drive motor between the first speed mode and the second speed mode in at least one of the end regions is smaller than the speed difference (Va3) in the intermediate region.
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Inventors:
MAKIHARA TOMOHIDE (JP)
TANOUE HIROSHI (JP)
TANOUE HIROSHI (JP)
Application Number:
PCT/JP2019/018494
Publication Date:
January 16, 2020
Filing Date:
May 09, 2019
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
B60S1/08
Foreign References:
| JP2010179910A | 2010-08-19 | |||
| JPH0588199U | 1993-11-26 | |||
| JP2015160598A | 2015-09-07 |
Attorney, Agent or Firm:
ONDA Makoto et al. (JP)
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