抄録
Generally, high power motors have problems that both of the maximum rotational speed and the responsiveness are lower than small motors. We consider that Multi-Motor Power Unit (MMPU) can solve these problems. MMPU consists of many small DC motors and their outputs are transmitted to driving shaft through gears. In this work, we propose the new concept of MMPU named as Tandem-Type Multi-Motor Power Unit that is arranged MMPU in shaft direction. We actually developed Unit-Type Multi-Motor Power Unit (Unit-Type MMPU) that is one of the Tandem-Type MMPU. Unit-type MMPU can separate and combined to each unit. We also developed an experimental device for measuring performance of MMPU. We obtain the following results by experiments. Maximum torque and torque at the maximum efficiency increases with the number of units. Maximum speed and maximum efficiency does not change. Now we are developing Cluster-Type Multi-Motor Power Unit based on the concept of "Multi-Motor of Multi-Motor Power Unit", that has a hundred of motors.
