Control device of a DC motor, designed especially for the control of abribles Parts in motor vehicles

摘要

The present Invention relates to a control device of a continuous current motor fed by a Voltage Generator via a line determined resistance,On which is placed at least a Relay of motor control in one of the two directions of Motion, characterized in comprising an Auxiliary resistor in series with the motor.A Short Circuit of the same, whose value is selected for the engine does not start when the relay is closedMeans of measuring the intensity of current which then flows through the Auxiliary resistance, as well as the tension in the power supply line of the motor.Means of calculation of the amount of the line Resistance and the internal Resistance of the engine from the measured values for current and VoltageA timing can excite the Medium Resistance of Short Circuit of The Auxiliary, right after a calculation of the amount of Resistance.Means comprising a Microprocessor to determine automatically and continuously the instantaneous value, either the speedOr the speed and torque from a continuous measure of current intensity and then Short Circuit Resistance and auxiliary Voltage Measurement.Preferably in permanence.