MIWA TIRE CO. LTD. Patent applications |
Patent application number | Title | Published |
20150175016 | BATTERY CHARGER FOR ELECTRIC VEHICLE, AND RESCUE VEHICLE - 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. | 06-25-2015 |
20130043838 | BATTERY CHARGER FOR ELECTRIC VEHICLE, AND RESCUE VEHICLE - 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. | 02-21-2013 |