CONTROLLER FOR INVERTER-CONTROLLED VEHICLE

Japanese Patent JP3793907

B2

PROBLEM TO BE SOLVED: To provide a controller for inverter-controlled vehicle which performs vector control in a speed state, completely without sensor. SOLUTION: A controller for inverter-controlled vehicle is provided with a vector control means 9 which performs vector-control on an inverter 2, that drives an induction motor 3 for driving vehicle in accordance with a torque current command and an exciting current command, a means which detects the torque current component of the output current of the inverter 2, and a means which generates a first acceleration command, based on the deviation between the torque current command and a detected torque current value. The controller is also provided with an initial speed establishing means 8, which generates a second acceleration command when the operation of the inverter 2 is started and a means which generates the rotational frequency command of the motor 3 given to the vector control means 9. The controller also has a function for stopping the generation of the second acceleration command from the establishing means 8 based on the magnitude of the detected torque current value, after the operation of the inverter 2 is started.