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6989644 |
Regenerative braking system and method using air conditioning system of electric vehicle
The regenerative braking method and system for an electric vehicle in which regeneration current is calculated and controlled using control of an air conditioning system to consume a portion or all...
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6373144 |
Method and device for controlling a prime mover
A prime mover has an internal combustion engine and a motor generator. A setpoint of a torque depends on a variable representing the wish of an operator of the prime mover and on operating...
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5963020 |
Method and apparatus for providing power-on-demand to auxiliary systems on an earth moving machine
A method and apparatus for supplying electrical power in an earth moving machine is provided. The method and apparatus includes an engine adapted to deliver primary power at a variable speed to the...
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5920162 |
Position control using variable exciter feed through
A motor generator system in accordance with the invention includes a prime mover (21) for driving an output shaft (18); a main motor generator (16, 105), having a rotor driven by the output shaft,...
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5920161 |
Driving system for permanent magnet type synchronous machine suitable for electric vehicle and driving control method using the same
In a driving system comprising a permanent magnet type synchronous machine, an electric power converter for the synchronous machine and a driving controller for driving the electric power...
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5789881 |
Power source control apparatus for hybrid vehicles
A power source control apparatus for parallel and series hybrid vehicles is provided. The power source control apparatus determines a required torque of a power source consisting of a...
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5789825 |
Compressor of turboalternator for hybrid motor vehicle
A turboalternator for a hybrid motor vehicle includes at least one compressor, at least one turbine, at least one alternator disposed between the at least one compressor and the at least one...
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5789824 |
Cooling of turboalternator for hybrid motor vehicle
A turboalternator for a hybrid motor vehicle includes at least one compressor, at least one turbine, at least one alternator having a rotor and being disposed between the at least one compressor...
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5767637 |
Controller for turboal ternator
A speed controller for a generator having a rotor includes a speed control input port for receiving a speed command signal, a proportional gain stage electrically connected to said speed control...
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5545928 |
Electric power generation control method in a hybrid vehicle utilizing detected generator output and engine revolutions
An electric power generation control method in a hybrid vehicle. A target generator output is calculated based on a state of charge, a catalyst temperature, etc., and the target number of engine...
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5461289 |
Drive system for a motor vehicle
The drive arrangement for a motor vehicle includes an internal combustion engine (1) with at least one controlling element (29), an electric generator arrangement (3) driven by the internal...
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5432413 |
Control system for an electrically propelled traction vehicle
A control system for an electrical propulsion system for a large wheeled vehicle adapted to haul a payload, the vehicle having an internal combustion engine and an electric generating means driven...
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5432383 |
Electric generator system for gas turbine
An electric generator system for a gas turbine converts the mechanical output power of the shaft of a gas turbine into electric energy with a plurality of electric generators (4, 5) mounted...
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5406126 |
Hybrid drive system with regeneration for motor vehicles and the like
A hybrid motor vehicle includes a storage battery providing motive power to an electric motor under the control of a microprocessor. A generator with an internal combustion engine may be used to...
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5373219 |
Control system for an electrically propelled traction vehicle
A control system for an electrical propulsion system for a large wheeled vehicle adapted to haul a payload, the vehicle having an internal combustion engine and an electric generating means driven...
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5351775 |
Method for propelling and retarding off-road haulers
An improved method and apparatus for powering and controlling the operation of large diesel-electric off-road haulers of the type in which hauler drive wheels are propelled and retarded by DC...
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5264764 |
Method for controlling the operation of a range extender for a hybrid electric vehicle
A method for controlling the operation of a range extender of a hybrid electric vehicle in which a requested power signal P req is generated in response to the state-of-charge of the battery...
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5103923 |
Method and apparatus for propelling and retarding off-road haulers
An improved method and apparatus for powering and controlling the operation of large diesel-electric off-road haulers of the type in which hauler drive wheels are propelled and retarded by DC...
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4719361 |
Mobile, off-road, heavy-duty haulage vehicle
An off-road, heavy duty, haulage vehicle includes a diesel engine driving an alternator (generator) for producing electrical power for motorized rear wheels. An alternator field converter is...
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4668872 |
Electronic control system for a diesel engine, generator and electric motor power train
The inventive control system introduces the current (ΔI) and voltage (ΔC) deviations simultaneously with the injection set point (C) to define a new injection set point (C') that is utilized in...
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4621222 |
Method for improving the dynamic converter drive for a direct current elevator motor
The present invention concerns a method for improving the dynamic converter drive for a direct current elevator motor, in which the said motor is controlled by adjusting the magnetization of the...
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4524286 |
Drive units for motor vehicles with internal combustion engine electric drives
Internal combustion engine-electric drive unit for a motor vehicle is provided with a setting means for the travel speed and a signal transmitter for the actual r.p.m. of the output shaft and with...
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4498016 |
Locomotive governor control
A digital processor implemented electronic governor for engine-generator units including a first control loop for producing a speed error and controlling fuel delivery setting as a function thereof...
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4482813 |
Regulator system for a diesel electric locomotive
A regulator system for both the Diesel and the electric portions of a Diesel electric locomotive allowing more reliable operation at all locomotive speeds. Said regulator has a regulator to...
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4354144 |
Transmissionless drive system
A continuously variable transmissionless drive system providing maximum torque at low speeds. The system is usable in a hybrid vehicle having a prime mover, such as an internal combustion engine,...
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4292531 |
Electrical propulsion process and system for a traction vehicle with an on-board source of power
A self-propelled traction vehicle equipped with an a-c traction motor energized by the a-c output of a controlled current inverter is propelled by a process comprising the steps of providing a...
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4200832 |
Overload detecting scheme for an electric propulsion system for traction vehicles
For detecting electrical overloads in a traction vehicle propulsion system wherein the output of a prime mover-driven electric generator is controlled by varying the on-off duty cycle of an...
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4185203 |
Closed loop rotational speed control system for twin-shaft type gas turbine electric generator
A reference signal generator generates a variable reference signal with which a signal indicating the momentary rotational speed of the prime mover (such as a gas turbine) for a generator is...
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4143280 |
Control system for a tertiary winding self-excited generator
A control system for a self-excited alternator which includes an auxiliary winding adapted to supply excitation to the alternator field winding incorporates a circuit for supplementing field...
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4126791 |
Process for driving a load, such as a vehicle, and motor unit for carrying out said process
This invention concerns a process and a motor unit for driving a load such as an automotive or similar vehicle, which can move at least intermittently by momentum, once it has been set in motion by...
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4034273 |
Turbo-electric turret drive system for mobile vehicles
A turret drive system for mobile and armored vehicles includes a turbo-geator for supplying power to an electric motor. The driveshaft of the motor is connected to the driveshaft of a rotary...
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4017739 |
Lifting force responsive load control for electrically propelled earthmoving vehicles
An electrical propulsion control system for self-propelled earthmoving traction vehicles of the type having integral earthmoving means and having a prime mover-driven electric generator supplying...
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4012677 |
Speed control for electrically propelled traction vehicles
An electrical propulsion control system for self-propelled traction vehicles of the type having a prime mover-driven electric generator supplying energy to traction motors and regulating means for...
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3970858 |
Prime mover speed responsive load control for electrically propelled traction vehicles
An electrical propulsion control system for self-propelled traction vehicles of the type having a thermal prime mover-driven electric generator supplying energy to traction motors, wherein the...
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3889127 |
Electric control system for driving an electric vehicle including first and second converters
An electric motor for driving a wheel of a vehicle is arranged to be supplied with electric power from an electric source of an electric battery group in series with an alternating current...
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3878400 |
EXCITATION CONTROL ARRANGEMENT FOR DIESEL-ELECTRIC PROPULSION SYSTEMS
An improved load control system adapted for turbocharged dieselelectric locomotives wherein engine exhaust gasses drive the turbocharger. A power reference signal, corresponding to desired power...
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3866102 |
Method and system of servo control for speed control for vehicles
The invention makes it possible (1) to run a vehicle such as automobile at a fixed speed, (2) to regulate running vehicle speed so that as soon as it exceeds a set vehicle speed it is automatically...
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3842287 |
HYBRID ELECTRIC CAR
In the hybrid electric car disclosed, a generator driven by a heat engine turns a motor which moves the vehicle. A main circuit controls the motor with power from the generator. The main circuit...
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3813557 |
GAS TURBINE VEHICLE DRIVE
A vehicle in which a coupled gas turbine and compressor and electrical generator are rotationally coupled to be pulsed under speed governor control to run at a relatively constant speed, and drive...
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3771821 |
ELECTRONIC POWER CONTROL AND LOAD RATE CIRCUIT
A control system for use in hybrid systems utilizing combustion engine, generator, and motor combinations for propulsion. The control system comprises a source of reference current for functional...
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3745441 |
SELF-EXCITATION DEVICE FOR AN ALTERNATOR
Self-excitation device for an electric supply alternator supplying, through a rectifier bridge, direct current motors, more particularly, drive motors for self-propelled railway vehicles fitted...
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3735220 |
CONTROL CIRCUIT FOR A D.C. MOTOR
The field and armature currents are for the shunt-wound vehicle motor and are controlled in dependence on signals representing the actual and desired operating states of the motor. A...
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3713504 |
VEHICLE ELECTRIC DRIVE PROVIDING REGULATION OF DRIVE WHEEL OPERATING SPEED DIFFERENCE
A vehicle electric drive system includes two electric power supplies connected respectively to energize front and rear drive AC induction motors to propel front and rear sets of drive wheels...
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3699351 |
BI-MODAL VEHICLES WITH DRIVE MEANS FOR EXTERNAL OR SELF-PROPULSION
A bi-modal vehicle, such as a rail car, is provided in a preferred embodiment with a propulsion turbine and an electro-mechanical transmission arranged to drive the vehicle either from the turbine...
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3681609 |
NON-POLLUTION MOTORS INCLUDING CRYOGENIC FLUID AS THE MOTIVE MEANS
Non-pollution motors wherein liquid nitrogen is evaporated to drive a gas motor, the gas motor driving an alternator (electrical generator) the output from which is used to drive an electric drive...
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3659168 |
VOLTAGE CONTROL FOR A MOTOR SUPPLY SYSTEM
In this system, a controlled rectifier converter interconnects an alternating current voltage source with an AC induction motor. To effect voltage amplitude control, trigger signals are pulsed to...
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3602722 |
DEVICE FOR AUTOMATIC CONTROL OF THE FIELD CONTACTORS OF DIESEL-ELECTRIC AND GAS TURBINE LOCOMOTIVES
A device for the automatic control of the field contactors of diesel-electric and gas turbine locomotive traction motors comprises a signal-forming unit including a network of resistors, a direct...
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3593076 |
WHEEL SLIP CONTROL ARRANGEMENT
A wheel slip control arrangement for traction vehicles wherein a pair of DC series field traction motors are connected in series by a common junction. A plurality of such pairs are preferably...
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3585473 |
DYNAMIC BRAKING SYSTEM FOR ELECTRIC DRIVE
A system for dynamically braking an electrically driven vehicle wherein a retarding means is directly coupled to the engine/generator drive and employed to absorb the major portion of the energy...
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3551685 |
VEHICLE ELECTRIC DRIVE SYSTEM
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