Patent ID: 6799109
Filing Date: 2004-09-28
Classification: B60K,B60W,F02N,F16H,Y02T,Y10S

Abstract:
A vehicle control apparatus, comprising:an engine that outputs a driving force; an automatic transmission having a friction engagement element freely engaging power transmission between said engine and a driven wheel; a hydraulic servo that controls an engagement state of said friction engagement element based upon a supplied oil pressure; a mechanical oil pump interlocking and driving with said engine and supplying the oil pressure to said hydraulic servo; an electric oil pump supplying the oil pressure to said hydraulic servo; and a controller that controls driving of said electric oil pump and generates a standby pressure supplied to said hydraulic servo based upon a driving state of said mechanical oil pump, wherein said standby pressure is set less than a line pressure generated based upon driving said mechanical oil pump during idling and equal to or greater than an engagement starting pressure by which said friction engagement element starts transmitting a torque.