OFFSET ADJUSTING METHOD FOR CURRENT DETECTION SIGNAL IN DRIVE POWER TRANSMISSION CONTROL APPARATUS

摘要

According to this offset value setting processing, whether or not all wheel velocities of front wheels and rear wheels are 0 km/h is determined in step S101 and whether or not the pressing amount of an accelerator pedal is 0% is determined in step S105. If it is determined that the vehicle velocity is 0 km/h and that the pressing amount of the accelerator pedal is 0%, a current detection signal voltage Vi at that time is set to an offset voltage Vof in step S113. Thus, the offset voltage value Vof is reset and set again if such a condition is established. Consequently, the offset voltage value Vof including the amount of an error due to a temperature drift is set up, thereby preventing drop in control accuracy due to that error.