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| Number | Title | Issue Date |
| 8446113 | Vehicular electrical system and method for controlling an inverter during motor deceleration Methods and systems for operating an inverter having a plurality of high switches and a plurality of low switches coupled to an electric motor are provided. An event indicative of deceleration of the electric motor is detected. The inverter is alternated between a f... | 05/21/2013 |
| 8441218 | Electrical regenerative braking This invention relates to an electrical regenerative brake (100) with a rotating brake coil (10) which is mounted on a wheel (14) of a vehicle, whereby a magnetic field (18) is fed in the coil (10). In order to allow effective rege... | 05/14/2013 |
| 8427091 | Drive with heat dissipation and energy-saving function A drive with heat dissipation and energy-saving function for supplying power to drive a motor. The drive includes a driving circuit having a rectification section. The rectification section serves to receive AC current generated when the motor abruptly accelerates/d... | 04/23/2013 |
| 8415906 | Motor driving apparatus When the output of motor reaches or exceeds a predetermined value during acceleration of the motor, the control target value of the DC link voltage which is the voltage of a power storage device is gradually lowered in corresponding relationship to the motor output.... | 04/09/2013 |
| 8400084 | Regenerative switched reluctance motor driving system Provided is a regenerative switched reluctance motor driving system which allows a motor to have a reduced size and weight and an increased efficiency as well as improved energy recovery efficiency at the time of regenerative braking without using a neodymium magnet... | 03/19/2013 |
| RE44060 | Electric car control apparatus An electric car control apparatus with which it is possible to make the size of equipment small. The control apparatus includes current detectors for respectively detecting currents flowing through collector shoes mounted on a leading car; a no-current indica... | 03/12/2013 |
| 8390220 | Device for controlling regeneration energy in an electronic motor drive having an LC filter to reduce conducted emissions from the motor back to the voltage source The present invention provides a unique improvement (23) in an electronic motor drive (20) having an LC filter (21) to reduce conducted emissions from a motor (M) back to a voltage source (V1). The improvement broadly includes diode (2... | 03/05/2013 |
| 8390221 | Systems and methods for protecting three-phase motors A system for protecting a three-phase electric motor of a compressor, the motor receiving first, second, and third phases from a three-phase power supply, the system including a single-phase line break protector, a first current sensor, and a control module. The sin... | 03/05/2013 |
| 8368330 | Energy-recovery device in a variable speed drive The invention relates to a variable speed drive comprising a direct-current power bus having a positive line (16) and a negative line (17), and an inverter module (14) supplied by the direct-current bus in order to supply a variable voltage to a... | 02/05/2013 |
| 8339075 | Method for controlling a deceleration process of a DC motor and controller Consistent with an example embodiment there is a method for controlling a deceleration process of a DC motor, wherein the DC motor is driven by a bridge driver coupled to a power supply intended to provide a supply voltage VDD at a power supply output. The method co... | 12/25/2012 |
| 8305018 | Power supply system and electric powered vehicle using the same If it is determined that excess power is generated based on overcharge information of a power storage device, a controller starts an operation of consuming the excess power by an excessive power consuming circuit. The controller counts elapsed time from the time poi... | 11/06/2012 |
| 8299738 | Multi-tasking power processor for a vehicle electric system A multi-tasking power processor (104) for a vehicle electric system (100) is provided. The multi-tasking power processor (104) includes a low voltage direct current bus interface (201), a high voltage direct current bus interface (202 | 10/30/2012 |
| 8288974 | Power supply control device for controlling power supply connected to motor A power supply control device controls a power supply connected to a motor and includes: an AC/DC converter that makes a first DC power supply; a DC/DC converter that makes a second DC power supply out of the first DC power supply; a first rectifying element that al... | 10/16/2012 |
| 8283880 | Motor drive device with function of switching to power regenerative operation mode A motor drive device including a converter for a power running operation and a power regenerative operation. The converter has power switching elements, a first power regenerative control unit for controlling the power switching elements in the power regenerative op... | 10/09/2012 |
| 8258727 | Regenerative torque shifter The regenerative torque shifter is a system for electric/hybrid electric vehicles that includes a driver-operated control device mounted in the vehicle and a control unit linked to a motor controller. The driver sets a level of regenerative braking desired by manipu... | 09/04/2012 |
| 8253359 | Electric rotating machine control system and vehicle driving system including the electric rotating machine control system A control system includes an electric rotating machine; a driving circuit that is connected to a DC power supply, the driving circuit includes a frequency conversion unit configured such that, when the electric rotating machine is to be driven in a power running mod... | 08/28/2012 |
| 8217599 | Regenerative braking apparatus In a regenerative braking apparatus that is connected to a power supply apparatus that supplies electric power to a load, and consumes regenerative power regenerated from a load side together with other regenerative braking apparatuses that are connected to the powe... | 07/10/2012 |
| 8203294 | Electric energy storage integrated within or proximate to electrically driven flight control actuators An apparatus for use with a flight control actuator and method for assembling the same is provided. The apparatus includes a motor drive system and a control unit. The motor drive system includes a capacitor-based energy storage configured to store and provide energ... | 06/19/2012 |
| 8188692 | Propulsion system A propulsion system is provided. The system includes: a first propulsion vehicle unit including a first tractive bank having at least one traction motor; a second propulsion vehicle unit including: a second tractive bank having at least one traction motor, a contact... | 05/29/2012 |
| 8188693 | DC bus boost method and system for regenerative brake Embodiments of the present invention provide novel techniques for using a switched converter to provide for three-phase alternating current (AC) rectification, regenerative braking, and direct current (DC) voltage boosting. In particular, one of the three legs of th... | 05/29/2012 |
| 8179063 | Traction drive of a rail vehicle for driving and generative braking The invention relates to a traction drive for the driving and generative braking of a rail vehicle or a combination of rail vehicles, a permanent-field synchronous motor and a traction current converter being respectively associated with at least two axles of the ra... | 05/15/2012 |
| 8164283 | System and method for energy capture and distribution Systems and methods are provided for capturing and using power generated by the application of an external force or by an inertial force on a vehicle control device that back-drive or forward-drive an actuator coupled to the control device. An actuator is coupled to... | 04/24/2012 |
| 8148925 | Electric safety braking device with permanent magnet motor and breaking torque control This electric safety braking device for an electric traction vehicle may allow the force/speed characteristic of the vehicle to be improved and includes a rotating electromechanical machine with permanent magnets which has at least one coil with electric terminals, ... | 04/03/2012 |
| 8143824 | Regenerating braking system including synchronous motor with field excitation and control method thereof A regenerating braking system is provided, which includes: a synchronous motor with field coil excitation including a cylindrical stator coil, an inverter electrically connected to the stator coil, a battery electrically connected to the inverter, a rotor coil provi... | 03/27/2012 |
| 8134315 | Method and apparatus for stopping servo motor The servo motor is controlled by a control signal from a control circuit. A common branch line is separated from a positive common line in accordance with information that a safety door is opened. Thus, a first gate drive circuit group is made inoperative. Then, a s... | 03/13/2012 |
| 8134314 | Electric powered vehicle An electric powered vehicle according to the present invention comprises a battery, an electric power converting device, an electric motor, a drive wheel, a control part, an accelerator, a brake, and a rotation sensor. The control part detects the velocity using the... | 03/13/2012 |
| 8120295 | Vehicle power controller A power controller alleviating change of braking feeling caused by reduced regenerative braking force is provided. Energy generated by regenerative braking is used for charging a capacitor. The charging power P(C) is calculated and whether P(C) has reached a maximum... | 02/21/2012 |
| 8098031 | Active brake unit The invention relates to a circuit arrangement for recirculating the energy produced during the braking of electric motors into a supply system. The object of the invention is to implement the feeding of the energy that can be obtained when braking electric motors t... | 01/17/2012 |
| 8080953 | Motor control method and device A control device includes a drive control unit that performs control for driving the electromagnetic coil, and a regeneration control unit that performs control for regenerating power from the electromagnetic coil. The drive control unit includes an excitation inter... | 12/20/2011 |
| 8076878 | Traction drive of a rail vehicle for driving and generative braking with load correction The invention relates to a traction drive for the driving and generative braking of a rail vehicle or a combination of rail vehicles, at least one permanent-field synchronous motor and a traction current converter being associated with at least one axle of the rail ... | 12/13/2011 |
| 8076877 | System and method for controlling power balance in an electrical/mechanical system An electrically commutated actuator and control system has a stator and a shaft that is movable with respect to the stator. A plurality of magnets movable with the shaft provide a first magnetic flux, and an electric current in at least one coil defined on the stato... | 12/13/2011 |
| 8054014 | Control system for an electrical machine In a control system and a method for operating a permanent-magnet electrical machine, when the electrical machine is switched off after one of a functional computer and a monitoring computer of the control system has identified a fault, in order to reduce the brakin... | 11/08/2011 |
| 8054015 | Motor drive apparatus equipped with dynamic braking circuit fault detection capability A motor drive includes a dynamic braking circuit for producing a deceleration torque utilizing a braking force caused by a synchronous motor acting as a generator when the synchronous motor is deenergized. The motor drive apparatus is equipped with a dynamic braking... | 11/08/2011 |
| 8049444 | Soft-start circuit A soft-start circuit includes a power source, a switch, a capacitor and a regeneration brake circuit. The regeneration brake circuit absorbs a return current. The regeneration brake circuit includes a resistor, a diode and a transistor. The resistor is connected bet... | 11/01/2011 |
| 8040084 | Vehicle, control method thereof and braking device During braking, lower limits are set based on an input limit of a battery and a brake pedal position, and the set lower limits limit regenerative torques output from motors. This prevents an output of an excessive braking force and torque shock caused by a hydraulic... | 10/18/2011 |
| 8030861 | Method for controlling a deceleration process of a DC motor and controller The invention is directed to a method for controlling a deceleration process of a DC motor (20), wherein the DC motor (20) is driven by a bridge driver (18) coupled to a power supply (12) intended to provide a supply voltage VDD at a powe... | 10/04/2011 |
| 8026681 | Safe electric braking device for printing presses and method of electrically braking an electric drive in a machine processing printing material A method and device for electrically braking an electric drive in a machine for processing printing material, includes a power electronics connected between the electric drive and a DC voltage intermediate circuit. A further electric braking device is switchable bet... | 09/27/2011 |
| 7994745 | Power supply device for vehicles A power supply device for vehicles, output units (10a, 10b) thereof are connected to a motor (5), includes a fuel cell (1) which is connected to the output units (10a, 10b), a capacitor (2)... | 08/09/2011 |
| 7973500 | Control apparatus for motor A normal revolution number calculation unit calculates a normal revolution number of a driving motor generator in every control period, based on a signal from a rotational position sensor. A moving average calculation unit calculates a moving average revolution numb... | 07/05/2011 |
| 7956560 | Control apparatus for rotational electric machine and driving apparatus for vehicle A control apparatus for controlling a rotational electric machine and a driving apparatus for a vehicle that includes an AC motor that rotates wheels and is driven by a power supplied from a battery, an instant variation detecting unit provided in a motor controller... | 06/07/2011 |
