Patent ID: 7641031

Claim:
A control apparatus for a vehicle incorporating an automatic transmission including a hydraulic coupling with a lock-up clutch, comprising: a controlling portion that controls an engagement force of said lock-up clutch in accordance with a traveling state of said vehicle, such that said lock-up clutch engages when said traveling state is in an engagement range, such that said lock-up clutch disengages when said traveling state is in a disengagement range, and such that a slip amount of said lock-up clutch meets a predetermined slip amount when said traveling state is in a slip control range; and a learning portion that controls the engagement force of said lock-up clutch to a first output value such that the slip amount of said lock-up clutch meets a target slip amount, and that updates a learning value that modifies a control value for obtaining said predetermined slip amount based on the first output value of the engagement force corresponding to said target slip amount, wherein the learning portion begins the control of the engagement force of said lock-up clutch to the first output value when said traveling state is in said engagement range and said lock-up clutch is engaged.