| 摘要 |
PROBLEM TO BE SOLVED: To perform an appropriate preparation for work and judgment of completion of preparation for work prior to a request for work for an electric oil pump 10.SOLUTION: An electric oil pump 10 is rotated at the first number of revolution for preparation for work at a slow speed side as a work preparation mode prior to a request for work in respect to the electric oil pump 10 under a condition in which an oil temperature detected by an oil sensor 30 is more than a prescribed temperature. The operation is transferred to a judgement mode under a condition in which an actual number of revolution of the electric oil pump 10 fulfills the first number of revolution for preparation work and the oil temperature is increased more than the oil temperature at the time of starting of the work preparation mode. Under the judgment mode, the electric oil pump 10 is rotated at the number of revolution for preparation for work at a high speed side and when the actual number of revolution fulfills the second number of revolution for preparation for work, it is judged that the preparation for work is completed. |
