Patent ID: 7189177

Claim:
An electrically operated vehicle drive controller used with an electrically operated machine, an output shaft differentially rotatably connected to an engine and the electrically operated machine, and a differential rotating unit having a first differential rotating element connected to the electrically operated machine, a second differential rotating element connected to the output shaft, a third differential rotating element connected to the engine, and a rotating body rotatably arranged on a support shaft in one of the first to third differential rotating elements and meshed with the other two differential rotating elements, the controller comprising: control element that limits an engine rotating speed such that a rotating speed of the rotating body becomes lower than an upper limit value on the basis of the rotating speed of the rotating body, wherein the differential rotating unit is a planetary gear unit, and the first differential rotating element is a sun gear, and the second differential rotating element is a ring gear, and the third differential rotating element is a carrier, and the control element controls the operation of the engine on the basis of a rotating speed of a pinion gear rotatably arranged with respect to a support shaft of the carrier.