Abstract: A generator driven by the driving force of a vehicle traction engine has permanent magnets and electromagnets arranged in tandem on a rotor, the magnetic field of the permanent magnet and the magnetic field of the electromagnet act independently on stator coils of a stator, forming a high-power unit controlled by a generator control unit that, when the output of the generator is lower than a prescribed value, flows forward current through the field coils to generate a magnetic field having the same orientation as the magnetic field due to the permanent magnet, and when the output of the generator is higher than a prescribed value, passes a reverse current through the field coils that generates a magnetic field having an opposite orientation to that of the magnetic field due to the permanent magnet, forming an alternating current having a prescribed value. The alternating current output is rectified.

Abstract: A generator driven by the driving force of a vehicle traction engine has permanent magnets and electromagnets arranged in tandem on a rotor, the magnetic field of the permanent magnet and the magnetic field of the electromagnet act independently on stator coils of a stator, forming a high-power unit controlled by a generator control unit that, when the output of the generator is lower than a prescribed value, flows forward current through the field coils to generate a magnetic field having the same orientation as the magnetic field due to the permanent magnet, and when the output of the generator is higher than a prescribed value, passes a reverse current through the field coils that generates a magnetic field having an opposite orientation to that of the magnetic field due to the permanent magnet, forming an alternating current having a prescribed value. The alternating current output is rectified.

Abstract: A generator driven by the driving force of a vehicle traction engine has permanent magnets and electromagnets arranged in tandem on a rotor, the magnetic field of the permanent magnet and the magnetic field of the electromagnet act independently on stator coils of a stator, forming a high-power unit controlled by a generator control unit that, when the output of the generator is lower than a prescribed value, flows forward current through the field coils to generate a magnetic field having the same orientation as the magnetic field due to the permanent magnet, and when the output of the generator is higher than a prescribed value, passes a reverse current through the field coils that generates a magnetic field having an opposite orientation to that of the magnetic field due to the permanent magnet, forming an alternating current having a prescribed value. The alternating current output is rectified.

Abstract: An automobile ac generator system comprises a generator driven by the engine of the automobile, a system controller for converting the ac power generated by the generator to dc power, controlling the generator on the basis of the voltage of the converted dc power and converting the dc power to ac power of commercial line frequency, and a mode switch for selecting among control operating modes of the system controller.

Abstract: An automobile generator apparatus for producing commercial line power when driven by an automobile engine comprises a generator, an inverter unit, a controller for controlling the generator field and an accelerator actuator.The accelerator actuator is mounted opposite the accelerator pedal in such manner as to prevent erroneous operation thereof.The generator field is controlled while monitoring both the low-voltage side output and the high-voltage side output so as to prevent a large output current from flowing through the low-voltage side load. A circuit is further provided for preventing the occurrence of an overvoltage as a result of field control transistor malfunction.The switching elements constituting the output stage of the inverter unit are controlled to vary the duty ratio of the output waveform so as to stabilize the inverter output voltage and controlled to remove the center portion of the output waves so as to cope with the startup load.