VEHICLE BRAKING/DRIVING FORCE CONTROL DEVICE

摘要

An ECU calculates the thermal margins of the in-wheel motors, on the basis of the thermal capacities of the in-wheel motors, the allowable limit temperatures, and the motor temperatures. Next, the ECU distributes the total requested torque between the requested torques for each wheel using the percentages of the thermal margins. The ECU controls the operation of an inverter such that the in-wheel motors generate the requested torques for the wheels. Thus, the four in-wheel motors generate uniform amounts of heat.

主权项

1. A vehicle braking/driving force control device, comprising:
an in-wheel motor provided with each of wheels of a vehicle generates a driving force or a braking force for the wheel, a motor control means to control each in-wheel motor and to produce the driving force or the braking force in each wheel independently, wherein the motor control means comprises a thermal margin calculation means to calculate the size of a thermal margin of the each in-wheel motor, and a braking/driving force distribution calculation means to calculate the distribution of the driving force or the braking force of wheels to produce in the each in-wheel motor so as to average the thermal margin of the each in-wheel motor based on the balance of the thermal margin of the each in-wheel motor calculated by the thermal margin calculation means.