Drive regenerative control system
View Patent ↗Provided is a drive regenerative control system of a drivee with a motor superior in torque and weight balance and suitable for miniaturization as the drive source. In a drive regenerative control system having a drive source with an electric motor, a drivee, a control circuit having a drive control circuit of the motor and a regenerative control circuit, and a detection unit for detecting the driving status of the drivee, the drive control circuit and regenerative control circuit have a control unit for controlling, linearly or in multiple stages, the duty ratio of the drive or regenerative signal to be supplied to the motor based on the phase difference of the phase of the detection signal from the detection unit and the command value signal to the motor.
1. A vehicle having a drive regenerative control system, comprising:
a drive system that drives the vehicle in which an electric motor is combined with another drive source as necessary;
a mechanism that transmits the driving force from the drive system to the vehicle;
an electric motor operation control circuit that controls the drive and regeneration of the electric motor;
a storage mechanism that stores regenerative energy;
a storage control circuit;
a sensor that detects the motion of the vehicle; and
an operation control device that outputs a drive control signal to the electromotive drive system based on the sensor output;
wherein the electric motor has a movable body constituted from a magnetic body, and a plurality of phase coils, and the operation control device controls one or a plurality of the phase coils for driving and/or regeneration according to the operation status of the vehicle; and
wherein, when the vehicle is running on a low load, said operation control device performs control so as to simultaneously use a part of the plurality of phase coils for driving and the other phase coils for regeneration.
2. A vehicle having a drive regenerative control system, comprising:
a drive system that drives the vehicle in which an electric motor is combined with another drive source as necessary;
a mechanism that transmits the driving force from the drive system to the vehicle;
an electric motor operation control circuit that controls the drive and regeneration of the electric motor;
a storage mechanism that stores regenerative energy;
a storage control circuit;
a sensor that detects the motion of the vehicle; and
an operation control device that outputs a drive control signal to the electromotive drive system based on the sensor output;
wherein the electric motor has a movable body constituted from a magnetic body, and a plurality of phase coils, and the operation control device controls one or a plurality of the phase coils for driving and/or regeneration according to the operation status of the vehicle; and
wherein the electric motor operation control circuit has a comparison circuit that compares a detection signal and a reference signal obtained based on the sensor output, forms the drive control signal of the electric motor based on the comparison result and supplies the drive control signal to the drive circuit of the electric motor, and further forms a regenerative control signal based on the comparison result and supplies the regenerative control signal to the storage control unit;
wherein the comparison circuit compares the phase of the detection signal and the reference signal, and the drive control signal or regenerative control signal is formed based on the phase difference;
wherein the electric motor operation control circuit determines the duty ratio of the drive signal of the electric motor to be supplied to the drive circuit based on the phase difference, and determines the duty ratio of the regenerative enabling signal to be supplied to the storage control unit based on the phase difference; and
further comprising a magnetic sensor in relation to the movable body for each of the phase coils, and the electric motor operation control circuit determines the hysteresis level in relation to the output of the magnetic sensor based on the comparison result, and determines the duty ratio from the hysteresis level and the magnetic sensor output.
3. A vehicle having a system according to claim 2 , wherein the output of the sensor is directly supplied to the phase coils as an excitation current.