METHOD AND DEVICE FOR CONTROLLING RELAYS OF ONBOARD MOTOR

Title:

METHOD AND DEVICE FOR CONTROLLING RELAYS OF ONBOARD MOTOR

Document Type and Number:

WIPO Patent Application WO/2017/022009

Kind Code:

A1

Abstract:

In order to reduce the occurrence of condensation at fixed contacts of a power supply relay during an interruption operation of the power supply relay, a steering angle main control module (8) is provided inside a housing (34), the steering angle main control module (8) having a motor drive circuit (32) connected to the fixed contact (31c) of the power supply relay (31) via a bus bar (44), and a phase relay (33) connected to the motor drive circuit (32) via a bus bar (46), the motor drive circuit (32) being provided in contact with a heat radiation part (45) having higher thermal conductivity than the power supply relay (31). Also, after the ignition is turned off, with the switches for the power supply relay (31) and the phase relay (33) left in the on state, a motor powering control for maintaining a rotation stop state in a steering angle main motor (13) via the power supply relay (31), the motor drive circuit (32), and the phase relay (33), is held for a prescribed amount of time, and after the prescribed amount of time has elapsed, the switch of the power supply relay (31) is switched to off.

More Like This:

WO/1998/038666	ELECTRO-MECHANICAL SWITCHING DEVICE
JP2002175751	RELAY DEVICE

Inventors:

SUZUKI TAKU (JP)
KAMEMURA TAKAFUMI (JP)
MIYASHITA YUKI (JP)
SHIBUYA MASAKI (JP)
MORI HIROTAKA (JP)
TAMURA TSUBASA (JP)

Application Number:

PCT/JP2015/071784

Publication Date:

February 09, 2017

Filing Date:

July 31, 2015

Export Citation:

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Assignee:

NISSAN MOTOR (JP)

International Classes:

H01H47/00

Foreign References:

JP2014120380A	2014-06-30
JP2007018927A	2007-01-25
JPH11260227A	1999-09-24
JP2013062958A	2013-04-04
JP2010132206A	2010-06-17
JP2014156151A	2014-08-28

Other References: