ELECTRIC OIL PUMP CONTROL SYSTEM AND CONTROL METHOD FOR AUTOMATIC TRANSMISSION

摘要

A control method of an electric oil pump for an automatic transmission that minimizes power loss by normally controlling driving of the electric oil pump when a start intention of a driver is detected after a power source is turned on is provided. The method includes driving an electric oil pump at ‘A’ RPM which is a maximum velocity when the power source is turned on. The driving of the electric oil pump is stopped when a set time t determined by the temperature of the automatic transmission oil has elapsed. The electric oil pump is driven at ‘A’ RPM for the time t, and thereafter, the electric oil pump is driven at ‘B’ RPM when a selection of a driving shift stage is detected.

主权项

1. An electric oil pump control system for an automatic transmission, comprising:
a power source comprising an engine or a motor; an electric oil pump supplying a fluid to the automatic transmission; an information detector detecting information on driving of a vehicle; and a controller controlling operations of the power source, the electric oil pump, and the automatic transmission depending on the driving of the vehicle, wherein the controller drives the electric oil pump when a start intention is detected after the power source is turned on.