Method for controlling an electric pump

Details Method for controlling an electric pump Method for controlling an electric pump

2005-04-05

2005-04-05

Freay, Charles G. (Department: 3746)

Pumps

Condition responsive control of pump drive motor

By control of electric or magnetic drive motor

C417S053000, C417S044100

Reexamination Certificate

active

06874993

ABSTRACT:
A control method for an electric pump adapted to supply pressurised operating fluid to actuators of an automatic transmission in order to cause the opening/closing of the clutch and the selection and engagement of the gears, in which the stage of supply of a voltage to the motor of the electric pump is carried out in order to cause the electric pump to rotate. The method comprises the stage of regulating the supply voltage as a function of actual operating conditions monitored in the vehicle using the automatic transmission.

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patent: 6151544 (2000-11-01), Amisano et al.
patent: 6262556 (2001-07-01), Hubbard et al.
patent: 6386170 (2002-05-01), Iwano et al.
patent: 6424903 (2002-07-01), Amisano et al.
patent: 10028074 (2001-05-01), None
patent: 10028074 (2001-05-01), None
patent: 10162973 (2002-08-01), None
Nakamori et al. (US 2002/0091034), published Jul. 11, 2002.*
EPO Search Report , 6/2003.

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