MOTOR CONTROL METHOD AND MOTOR CONTROL DEVICE

Title:

MOTOR CONTROL METHOD AND MOTOR CONTROL DEVICE

Document Type and Number:

WIPO Patent Application WO/2015/002122

Kind Code:

A1

Abstract:

In this system, an acceleration region (SU) and a deceleration region (SD) are provided between the operation start position and the operation end position of a wiper arm (1), and in the acceleration region/deceleration region, the target rotational speed is updated by calculating the addition amount / subtraction amount on the basis of the difference between the maximum rotational speed and the current rotational speed. The addition amount is set to be greater than the subtraction amount, and a constant velocity region (CV) is provided between the acceleration region (SU) and the deceleration region (SD). The length of the constant velocity region (CV) can be modified, and if the amount of change in the operation angle of the wiper arm (1) does not go beyond the constant velocity region (CV), the amount of change in the operation angle is subtracted from the constant velocity region (CV). Further, if the amount of change in the operation angle does go beyond the constant velocity region (CV), the target rotational speed is updated with the same amount of change in the acceleration region and the deceleration region, for example, by the subtraction amount in the deceleration region.

Inventors:

AMAGASA TOSHIYUKI (JP)
HIRATA KEN (JP)
IKEDA TAKESHI (JP)

Application Number:

PCT/JP2014/067317

Publication Date:

January 08, 2015

Filing Date:

June 30, 2014

Export Citation:

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Assignee:

MITSUBA CORP (JP)

International Classes:

B60S1/08; H02P6/08

Domestic Patent References:

WO2007042515A1	2007-04-19
WO2008049536A1	2008-05-02

Foreign References:

JP2013014295A	2013-01-24
JPH0424148A	1992-01-28
JP2013001237A	2013-01-07
EP1449728A2	2004-08-25
JP2010173338A	2010-08-12
JP2013014295A	2013-01-24

Other References: