Oil pump-driving apparatus

Abstract

An oil pump driving device drives an oil pump using at least one of rotation generated by an electric motor and rotation generated by an engine. The oil pump driving device includes: a first transmission unit to which the rotation generated by the electric motor is transmitted; a second transmission unit to which the rotation generated by the engine is transmitted; a third transmission unit configured to transmit rotation to the oil pump; and an engaging unit configured to cause the third transmission unit to engage with the first transmission unit, with the second transmission unit, or with the first and second transmission units.

1 . An oil pump driving device for driving an oil pump using at least one of rotation generated by an electric motor and rotation generated by an engine, the oil pump driving device comprising:
 a first transmission unit, the rotation generated by the electric motor being transmitted to the first transmission unit;   a second transmission unit, the rotation generated by the engine being transmitted to the second transmission unit;   a third transmission unit configured to transmit rotation to the oil pump; and   an engaging unit configured to cause the third transmission unit to engage with the first transmission unit, with the second transmission unit, or with the first and second transmission units, wherein   when causing the third transmission unit to engage with one of the first and second transmission units, the engaging unit is configured to make the third transmission unit and the other of the first and second transmission units disengaged from each other.   
     
     
         2 . The oil pump driving device according to  claim 1 , wherein the engaging unit is a synchromesh mechanism. 
     
     
         3 . The oil pump driving device according to  claim 1 , wherein
 the engaging unit is configured to perform joint switch so as to join the third transmission unit to the first transmission unit, the first and second transmission units, and the second transmission unit in a stated order, or join the third transmission unit to the second transmission unit, the first and second transmission units, and the first transmission unit in a stated order.   
     
     
         4 . An oil pump driving device for driving an oil pump using at least one of rotation generated by an electric motor and rotation generated by an engine, the oil pump driving device comprising:
 first transmission means for being transmitted the rotation generated by the electric motor;   second transmission means for being transmitted the rotation generated by the engine;   third transmission means for transmitting rotation to the oil pump; and   engaging means for causing the third transmission means to engage with the first transmission means, with the second transmission means, or with the first and second transmission means, wherein   when causing the third transmission means to engage with one of the first and second transmission means, the engaging means makes the third transmission means and the other of the first and second transmission means disengaged from each other.