| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress the generation of the fluctuation of a driving force against the intention of a driver when an automatic transmission fails, in the driving control device of a vehicle for controlling the driving force by obtaining the rotation speed of an output shaft based on the rotation speed of a motor and the command value of a transmission gear ratio. <P>SOLUTION: The output shaft rotation speed of an automatic transmission part 20 is directly detected by an output shaft rotation speed sensor 44, and an upper limit guard and a lower limit guard are executed to first target drive torque A calculated from the calculation value (Nmg2/γm) of the output shaft rotation speed based on second target drive torque B calculated from the detection value Nout. Therefore, when a target gear stage Gm is different from an actual gear stage due to the fail of the automatic transmission part 20, the calculation value (Nmg2/γm) of the output shaft rotation speed is different from the actual value, and even when the first target drive torque A calculated form the calculation value (Nmg2/γm) is largely isolated from a specific value, it is possible to prevent final target drive torque Tm from becoming largely isolated from the specific value, and the fluctuation of a driving force against the intention of a driver from being generated. <P>COPYRIGHT: (C)2010,JPO&INPIT |
