| 摘要 |
PROBLEM TO BE SOLVED: To provide a shift control device for an electric car capable of attaining a target shift stage by positively engaging dog teeth under an appropriate execution of rotation synchronization of transmission gears by utilizing an electric motor so as to prevent a state such as non-drivability when the transmission is not completed.SOLUTION: In preselection of a gear mechanism G2 to a prescribed transmission stage, a transmission gear is driven by an electric motor 3 with an output rotational speed Nout as a target value Ntgt to cause the transmission gear to be rotationally synchronized with an output shaft 2b. After this operation, positive side fine torque and negative side fine torque are alternately added by the electric motor 3 to the transmission gear and a variation amount of fine torque to the positive side and negative side are corrected on the basis of the target rotational speed Ntgt and rotational deviation &Dgr;N of the transmission gear, and dog teeth are engaged while holding a rotational speed N of the transmission gear to be around the target rotational speed Ntgt. |
