Apparatus for controlling electric oil pump

摘要

An apparatus for controlling an electric oil pump that can determine the occurrence of idling even in a region in which determination based on a load of the electric oil pump becomes difficult.;The apparatus for controlling an electric oil pump according to one embodiment of the invention sets a target number of revolutions for determination tNset higher than a required number of revolutions tNreq corresponding to an operation request of the electric oil pump, and executes control of an electric motor so that the number of revolutions N of the electric oil pump approaches the target number of revolutions for determination tNset. A load (phase current Ii) of the electric oil pump is detected while executing the control of the electric motor, and the occurrence of idling in the electric oil pump is determined based on a detected pump load (Inrm, IidI).

主权项

1. An apparatus for controlling an electric oil pump that supplies oil using an electric motor as a power source, comprising:
a determination time control section that sets a target number of revolutions for determination higher than a required number of revolutions corresponding to an operation request of the electric oil pump, and executes control of the electric motor so that the number of revolutions of the electric oil pump approaches the target number of revolutions for determination; a pump operation state detecting section that detects an operation state of the electric oil pump while executing the control of the electric motor; an idling determining section that determines the occurrence of idling in the electric oil pump based on an operation state detection value detected by the pump operation state detecting section; and a control signal output section that outputs a control signal corresponding to a determination result obtained by the idling determining section.