Patent ID: 9428172
Filing Date: 2016-08-30
CPC Classification: B60L,B60W,B62M,Y02T

Claim Text:
1. A motor drive control device for an electric power-assisted vehicle provided with a motor drive system and a pedal drive system each of which is provided with a one-way clutch, the device comprising: a first calculating part that calculates a pedal rotation conversion speed that is converted from a pedal rotation; a second calculating part that, during a period in which a first target torque is not detected, calculates a second target torque for a motor based on the pedal rotation conversion speed, the first target torque being calculated based on a pedal torque; a first processing part that generates a first value by converting a rotational speed of the motor to a duty cycle; a second processing part that generates a second value by converting the second target torque to a duty cycle; and a driver that controls switching of a switch provided in a complementary switching amplifier, based on an average duty cycle derived from a sum of the first value and the second value, the driver driving a motor that is connected to the complementary switching amplifier, wherein the second calculating part calculates the second target torque in accordance with the first target torque during a period in which the first target torque is detected.