Drive system and control method of the same

Details Drive system and control method of the same Drive system and control method of the same

2006-01-13

2009-12-29

Ip, Paul (Department: 2837)

Electricity: motive power systems

Motor load, armature current or force control during...

C318S434000, C307S010100, C307S010700, C361S029000, C361S032000, C123S179100, C123S179200

Reexamination Certificate

active

07638961

ABSTRACT:
In response to a system-off instruction, the drive system control technique of the invention controls individual motors of an electric cooling water pump and an electric cooling fan to stop (step S100), waits for elapse of a preset reference time period since start of the control of stopping the motors (step S110), and turns off a relay to disconnect a supply of electric power from a battery to a CPU of a control unit (step S120). Inactivation of the relay after elapse of the preset reference time period since start of the control of stopping the motor disconnects the supply of electric power to the control unit in the state of sufficiently low back emf generated by the motors. This arrangement effectively prevents malfunction of the control unit due to the back emf generated by the motors.

REFERENCES:
patent: 4338896 (1982-07-01), Papasideris
patent: 4574752 (1986-03-01), Reichert et al.
patent: RE32474 (1987-08-01), Reid
patent: 5072702 (1991-12-01), Sasaki et al.
patent: 5408211 (1995-04-01), Hall
patent: 5601058 (1997-02-01), Dyches et al.
patent: 5642696 (1997-07-01), Matsui
patent: 5698907 (1997-12-01), Weber
patent: 5744921 (1998-04-01), Makaran
patent: 5834854 (1998-11-01), Williams
patent: 6473562 (2002-10-01), Stephan
patent: 6616573 (2003-09-01), McLeod et al.
patent: 6758292 (2004-07-01), Shoemaker
patent: 6768221 (2004-07-01), Klinger et al.
patent: 7053500 (2006-05-01), Furukawa et al.
patent: 2002/0014216 (2002-02-01), Boegner et al.
patent: 2003/0080621 (2003-05-01), Kirk
patent: 2003/0117019 (2003-06-01), Furukawa et al.
patent: 2003/0151307 (2003-08-01), Klinger et al.
patent: 0887179 (1998-12-01), None
patent: 2 081 533 (1982-02-01), None
patent: 61-091042 (1986-05-01), None
patent: 6-55070 (1994-03-01), None
patent: U-06-034131 (1994-05-01), None
patent: A-09-149509 (1997-06-01), None
patent: 11-100234 (1999-04-01), None
patent: 2002-240186 (2002-08-01), None
patent: 2003-073146 (2003-03-01), None
patent: A-2004-137984 (2004-05-01), None

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