Patent ID: 6371888
Filing Date: 2002-04-16
Classification: B60W,Y10S,Y10T

Abstract:
A control apparatus for an automatic transmission comprising:a throttle actuator for opening/closing a throttle valve provided in an air intake pipe of an engine; a throttle opening sensor for sensing an opening degree of said throttle valve; a transmission having a shift lever and a plurality of gear-change stages for speed-changing a revolution force of said engine so as to transmit the speed-changed revolution force to a driven member, said plurality of gear-change stages being selectively switched over by said shift lever; a shift lever position detector for detecting a gear-change position of said shift lever; an accelerator sensor for sensing an operation amount of an accelerator pedal; a power transmitting clutch for establishing/interrupting power transmitted from said engine to said transmission; and a control unit for determining an abnormal throttle opening condition when the opening degree of said throttle valve sensed by said throttle opening sensor is not less than a predetermined value under the condition that said shift lever position is in a drive range and that said accelerator sensor senses a fully-released position of said accelerator pedal, said control unit being operable to control, upon determination of the abnormal throttle opening condition, said power transmitting clutch in such a manner as to place it into a power interrupting state.