ALIGNMENT CHANGING CONTROL DEVICE AND FUEL ECONOMY MANAGEMENT DEVICE

摘要

PROBLEM TO BE SOLVED: To improve fuel economy by controlling the alignment of a toe angle or the like of wheels.;SOLUTION: A toe angle changing control ECU (Electronic Control Unit) 37 for controlling a toe angle of wheels includes: a straight traveling state judging section 41 for judging whether or not the vehicle is in a straight traveling state within a predetermined time period based on detection results (a vehicle speed, a steering torque, a yaw rate, and a lateral acceleration) of the traveling condition of the vehicle; a memory 44 for storing the toe angle of the wheels while the vehicle is in the straight traveling state; and a toe angle setting section 43 for setting the wheels to the toe angle stored in the memory 44 when the straight traveling state judging section 41 judges that the vehicle is in the straight traveling state. While the vehicle is in the straight traveling state, the wheels are set to a toe angle at which the wheels are substantially parallel to the longitudinal direction of the vehicle, and the rolling resistance of the wheels becomes minimum theoretically, thus improving the fuel economy.;COPYRIGHT: (C)2008,JPO&INPIT