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7629759 |
Kit and method for reconfiguring an electrical braking system for a traction vehicle
A kit and method for reconfiguring an electrical braking system for a traction vehicle are provided. The kit may include a braking system assembly including a chopper having a first chopper circuit...
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7609024 |
Auxiliary bus method
Certain exemplary embodiments can comprise a system comprising an electric drive system for a machine. The system can comprise a rectifier adapted to convert AC power from an alternator to DC...
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7605555 |
Stabilizer control device for controlling roll rigidity of a stabilizer
A stabilizer control device includes: an electric motor having a regenerative function; a stabilizer, connecting a left wheel and a right wheel, that is capable of altering a roll rigidity via the...
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7595599 |
Drive regenerative control system
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...
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7571683 |
Electrical energy capture system with circuitry for blocking flow of undesirable electrical currents therein
An electrical energy capture system, as may be carried on a hybrid energy, electro-motive, self-powered traction vehicle, is provided. The system may be used for storing electrical power generated...
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7560884 |
Electronic braking and energy recycling system associated with DC brushless motor
An electronic braking and energy recycling system associated with a direct current (DC) brushless motor, characterized in that when an electronic braking task is launched, a phase voltage occurred...
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7554278 |
Load-lifting apparatus and method of storing energy for the same
A load-lifting apparatus has one or more prime power sources, one or more energy storage systems and regenerative braking. Regenerative energy is recovered when the load-lifting apparatus lowers...
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7525278 |
Voltage conversion apparatus, power output apparatus, and control method of voltage converter
An upper limit value setting unit of a control device conducts integration on the change in battery power, and determines whether the integrated value is lower than a preset first threshold value...
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7508147 |
Variable-frequency drive with regeneration capability
An electrical device includes a plurality of single-phase power cells electrically connected to receive power from a source and deliver power to a load. The single-phase power cells include a first...
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7486036 |
Power control apparatus, electrically powered vehicle and power control method of power system
When surplus power not charged to an electric storage is generated at the time of regenerative braking of a vehicle, a voltage is generated across first and second neutral points using a...
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7482767 |
Regenerative motor propulsion systems
A vehicle or watercraft regeneration system includes at least one electric motor capable of generating electricity and a controller for the at least one motor; wherein the controller to optimize...
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7436142 |
Method for maintaining a direct voltage at the input of a DC/AC voltage converter, recording medium for this method, and electric vehicle
This method maintains a direct voltage at the input of a DC/AC voltage converter in order to maintain an asynchronous motor in a magnetised state, the input of the converter being connected to a DC...
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7436137 |
Drive regenerative control system
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...
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7425808 |
Vehicle drive system and vehicle provided with the same
A rotor is provided with slits each of which serves as a flux barrier blocking a magnetic flux. A direction shown by an arrow is a forward direction along which the rotor rotates when a vehicle...
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7420339 |
Regenerative braking system of fuel cell vehicle using super capacitor
A regenerative braking system includes a capacitor which is electrically connected to a stack and is charged by the stack, a traction motor, a motor control unit which control electric power input...
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7408319 |
System and method for regenerative energy control when multiple motors share a common power supply
When multiple motors ( 40 ) share a common DC power supply ( 10 ) via a bus ( 20 ), a system and method is provided for managing the effect of regenerative energy caused by a motor. The...
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7400104 |
Voltage converting device, computer readable recording medium with program recorded thereon for causing computer to execute failure processing, and failure processing method
A control device detects whether or not an up-converter fails, based on a DC voltage from a voltage sensor, an output voltage from a voltage sensor, and a duty ratio in controlling switching of NPN...
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7400106 |
Method and apparatus for providing torque limit feedback in a power drill
A battery-powered tool indicates to an operator that a torque limit has been reached. The tool comprises a driver circuit for generating motor interface driving signals, a motor interface circuit...
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7385372 |
Auxiliary bus system
Certain exemplary embodiments can comprise a system comprising an electric drive system for a machine. The system can comprise a rectifier adapted to convert AC power from an alternator to DC...
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7375483 |
Mesh connected brake array for electrical rotating machines
In the present invention, several polyphase devices are connected together: an inverter, and electrical rotating machine, and a resistive load or braking resistor. The purpose of the resistive load...
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7375490 |
Methods for managing electrical power
Certain exemplary embodiments comprise a system comprising a plurality of Active Front End units adapted to be electrically coupled to a direct current (DC) bus. Each of the plurality of Active...
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7368889 |
Motor control apparatus and control method thereof
A motor control apparatus supplying AC power to a motor having a plurality of motor windings having an inverting part including a bridge circuit having a plurality of switching units, and supplying...
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7362065 |
Regenerative breaking system for electric vehicle
Several embodiments of electric vehicle control and control apparatus wherein the amount of regenerative braking of the vehicle and the type of braking is determined by current conditions to...
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7348741 |
Method and device for controlling fan for cooling vehicle-mounted battery
A vehicle which uses an internal combustion engine and a motor generator as drive sources is provided with a battery disposed under a seat and a fan for cooling the battery. Power is exchanged...
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7345439 |
Rotary electric machine for vehicle
[Problem] In a conventional rotating electrical machine to perform starting and power generation, an inverter and a rotating electrical machine body are constructed to be separate bodies, and a...
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7330012 |
High frequency bus system
Certain exemplary embodiments can comprise a system comprising an electric drive system for a machine. The system can comprise a rectifier adapted to convert AC power from an alternator to DC...
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7327110 |
Drive circuit for braking a motor during a malfunction
A drive system with an electric motor is described, which includes an integrated armature short-circuit brake and a mechanical brake. If the electric motor cannot be controllably slowed down, a...
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7327104 |
Control apparatus for electrically-powered vehicle
A control apparatus for an electrically-powered vehicle that includes an electrical motor, a motor control unit, and a traction control unit that controls a drive force so as to suppress spinning...
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7309967 |
Motor drive circuitry with regenerative braking for disk drive
During normal operation of a hard disk drive, control logic controls a plurality of switching elements to provide electrical power to a spindle motor and head motor of the disk drive from a voltage...
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7265513 |
Variable reluctance electric power system
A variable reluctance electric power system which comprises an alternator and a motor having a rotor with longitudinal lobes and no windings, commutators, slip rings, magnets, or laminations. The...
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7242159 |
Controller for drive system
An ECU executes a program including the steps of calculating a capacitor charging electric power value W ( 1 ) (a value of electric power to be stored in a capacitor) based on a voltage value of...
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7235897 |
Power supply unit for automobiles, which can provide braking force even when abnormality occurs in the power supply unit of electrically driven brake devices
A power-supply unit for automobiles, connected to an electrically-driven brake device which generates braking forces by being electrically driven, an electric generator capable of generating...
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7233124 |
Motor drive inverter control apparatus
A motor drive inverter control apparatus includes a rectifier circuit for rectifying an AC power supply, an inverter circuit driven by an output from the rectifier circuit, a motor driven by an...
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7224137 |
Instantaneous fan stopping method and structure thereof
The present invention provides an instantaneous fan stopping method and structure thereof. The method and structure can eliminate the inertial rotating state of the fan when the power supplied to...
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7218070 |
System and method for braking a motor of a propulsion unit
The present invention relates to a propeller drive arrangement for vessels used in water-borne traffic, and specifically to a propeller drive arrangement containing a propulsion unit, and to such...
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7215093 |
Motor drive circuit and motor drive method that can positively perform a brake operation
A motor drive circuit includes a first transistor. The collector of a second transistor is connected to the emitter of the first transistor in series. A motor is connected to a connection point...
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7190133 |
Energy storage system and method for hybrid propulsion
A hybrid propulsion system. The system comprises one or more hybrid propulsion traction drives having an electric motor operable to produce mechanical power for propulsion. A hybrid propulsion...
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7176645 |
Control apparatus for electric railcar
A control apparatus for an electric railcar that provides control so that when rotational speed of a motor decreases below a required value, torque of the motor will decrease at a required rate of...
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7170245 |
Motor power supply control apparatus
A motor power supply including a DC supply part having a pair of supply terminals; an inverter having a pair of connection terminals respectively connected to the supply terminals thereof to...
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7151354 |
Magnetic noise reduction method for AC rotary electric machine, and motor control apparatus and AC rotary electric machine apparatus using the same
The invention provides techniques for reducing or altering the magnetic noise of an AC rotary electric machine. A magnetic noise reducing harmonic current of order n, whose frequency is n times the...
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7132810 |
Power supplying apparatus and power supplying method
An apparatus for supplying a power to a motor for driving a mechanism that conveys a cartridge of a storage medium includes an accumulating unit that accumulates a regenerative power generated by...
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7133602 |
Power supply apparatus, motor drive control method using the same and motor vehicle having the same mounted thereon
A power supply apparatus driving and controlling motor generators (MG 1 , MG 2 ) includes a battery ( 10 ) generating an input voltage (Vb), a converter ( 110 ) converting the input voltage into a...
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7126297 |
Controlling method of a motor state
A controlling method of a motor state described herein detects the motor operation in a regeneration state or a motor state. The output frequency value of an AC motor drive is calculated and...
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7126298 |
Mesh connected brake array for electrical rotating machines
In the present invention, several polyphase devices are connected together: an inverter ( 420 ), and electrical rotating machine ( 440 ), and a resistive load or braking resistor ( 430 ). The...
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7111984 |
X-ray computed tomography apparatus with heat emission system
An X-ray computed tomography apparatus wherein an X-ray is generated by a generator and an X-ray data resulting from the X-ray is detected by a detector. The apparatus includes a supporter, a...
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7109686 |
System and method for precharging and discharging a high power ultracapacitor pack
This invention is a system and a method that uses the braking resistor, commonly used and available in electrically or hybrid-electrically propelled vehicles, to limit the precharge current during...
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7106023 |
Motor driving apparatus
The present invention is directed to the provision of a servomotor driving apparatus that feeds energy stored in a power storage part connected with a DC link that connects a rectifier circuit with...
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7106015 |
Motor control device and motor control method
If a traveling speed of a carriage calculated by a speed converter is larger than an estimated speed in a deceleration section, braking is conducted by a braking method corresponding to a...
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7102333 |
Control of the mains bridge of a frequency converter to regenerate energy from the motor to the supply
A method and an apparatus for controlling the mains bridge of a four-quadrant PWM frequency converter provided with a DC intermediate circuit when the power is flowing in the direction towards the...
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7091685 |
Overload protection for DC motors
A closed-loop system 10 is provided for controlling a DC motor. The system includes a DC motor 12 , a controller 18 associated with the motor and constructed and arranged to control operation...
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