UNDERCLEARANCE CONTROL DEVICE FOR ELECTRICALLY DRIVEN VEHICLE Russian patent published in 2014 - IPC B60L15/20 B60L11/18 

FIELD: transport.

SUBSTANCE: invention relates to underclearance control device in a system of power transmission from electric motor to running wheel. Underclearance control device for electrically driven vehicle which moves by means of power transmission from electric motor to running wheel includes facility for determination of slow movement termination detection; facility for determination movement range selection when slow movement is terminated and electric motor control facility. The electric motor control facility controls electric motor so that the motor outputs torque that is less than slow movement torque in direction of movement range traction transmission for limited time period. The limited period is the least of specified period and the period for which movement range is selected in process of meeting condition of slow movement termination. The limited period is the minimum of duration required to activate torque for elimination of clearance existing in electric motor power transmission within limits from electric motor to running wheel.

EFFECT: lower power clearance.

2 cl, 5 dwg