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7224132 |
Portable range extender operable in automatic and manual modes
A portable range extender is provided for an electric vehicle having a vehicle controller, and an electric traction motor powered by a battery. The portable range extender has an engine, a...
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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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7163071 |
Method for operating a non-railbound land vehicle with a combustion engine-generator unit and an electric drive motor and corresponding vehicle
The invention relates to a non-railbound land vehicle ( 2 ) comprising a drive system with the following components; a combustion engine-generator unit (=VG unit) ( 14, 16 ); at least one electric...
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7064503 |
Active noise compensation
A method is for controlling a multi-phase electrical ship propulsion motor that is supplied with electric energy via a power converter. The ship propulsion motor is preferably a permanently excited...
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7023150 |
Drive device
A hybrid drive apparatus includes an engine, a first electric motor for generating electric power by using at least a portion of its output and for controlling the speed of the engine and a control...
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6882909 |
Method and system for reducing motor shock of a hybrid vehicle
The method for reducing motor shock of a parallel hybrid electric vehicle equipped with a continuously variable transmission calculates an upper limit of acceleration and an upper limit of jerk of...
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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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6340847 |
Power output apparatus and method of controlling the same
In a power output apparatus of the present invention, a control unit sets a WOT (wide open throttle) line L 2 , where the maximum torque of an engine attains, as a boundary between an over drive...
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6335574 |
Control apparatus for hybrid vehicle
The hybrid vehicle having an engine, an electric motor, a starter motor that starts the engine, and a power drive unit that drives the electric motor. The control apparatus includes an engine start...
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6054776 |
Control apparatus of parallel hybrid electric vehicle
A parallel hybrid electric vehicle includes an engine and a motor/generator as a rotary driving source. A differential device has a first shaft connected to the engine, a second shaft connected to...
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6018198 |
Hybrid drive apparatus for vehicle
A hybrid drive apparatus for a vehicle which is capable of improving the response in restarting an engine during the running of a vehicle. As a result, a shock due to deceleration can be reduced....
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5982045 |
Hybrid vehicle drive system adapted to prevent concurrent mode change and transmission shifting or torque distribution ratio change
A hybrid drive system including an engine and an electric motor at least one of which is operated as drive power source to drive a motor vehicle in a selected one of different operation modes. The...
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5901683 |
Indirect monitoring and control of visible exhaust emissions from a diesel engine
A system and method are provided for limiting visible exhaust emissions from a diesel-electric traction vehicle system including a multi-cylinder diesel engine connected for driving a synchronous...
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5786640 |
Generator control system for a hybrid vehicle driven by an electric motor and an internal combustion engine
A series hybrid vehicle comprises a generator 30 driven by an internal combustion engine 40, a battery 20 chargeable by generator 30, an electric motor 10 rotated by electric power of generator 30...
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5785138 |
Operating method for a hybrid car
A method and apparatus for operating a hybrid car which includes an electric motor for driving the car, and an internal combustion engine for power generation. At least first and second vehicle...
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5632352 |
Electric traction motor vehicle
The vehicle (1) comprises a driving wheel (2) driven by an electric motor (3) whose control circuit (4) is supplied by a generator (6) coupled to a fuel engine (5), and a sensor (18) supplying a...
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5473228 |
Control method for electrical appliance in hybrid vehicle
A control method for an electrical appliance in a hybrid vehicle. When the electric appliance is connected, the output of the engine is maintained by reducing the output of the generator by the...
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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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5418437 |
Motor vehicle drive system for a motor vehicle having an electric motor system, and a method of operating said drive system
The motor vehicle drive system is for a motor vehicle having an electric motor system, an actuating system, an accelerator system, a mode selector and a battery. The drive system comprises a power...
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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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4818890 |
Turbine helper drive apparatus
A turbine helper drive apparatus includes a turbine for driving a load, a motor coupled to the turbine, and a power converter for controlling an output from the motor based on a predetermined power...
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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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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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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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4346303 |
Control system for an electrically driven vehicle with three generators and flywheel energy conservation
An energy-conserving control system for an electrically driven vehicle comprises a traction motor (3) converting electricity generated by a first generator (1) into mechanical propulsion, and...
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4338525 |
Marine propulsion system
A marine propulson system is described that includes a gas turbine, an alternating current generator, a fixed pitch propeller, a synchronous motor and a frequency converter. The frequency converted...
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4309620 |
Flywheel electric transmission apparatus
In a preferred embodiment, the flywheel electric transmission system is made up of three electric machines and a flywheel and is adapted for use in an automobile. The first electric machine is...
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4306156 |
Hybrid propulsion and computer controlled systems transition and selection
A primary power source in the form of a direct energy converter provides d.c. voltage to a d.c. to a.c. converter. This in turn provides energy to an a.c. motor. The motor with appropriate speed...
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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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4119862 |
Control apparatus of electric motor cars
An electric motor car wherein an electric motor for driving the car is energized by a fuel engine driven generator and a battery is connected in parallel with the motor to be float charged by the...
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4109743 |
Propulsion unit for vehicles
A mixed propulsion system comprising a turbine unit having two output shafts which drive two counter rotating flywheels and, via a reduction gearbox, two generators which generate electricity to...
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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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3993912 |
Marine propulsion system
A marine propulsion system includes a gas turbine, a generator, a motor and a fixed pitch propeller. Means are provided to operate the motor synchronously in the normal ahead and astern directions...
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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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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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3842316 |
TRANSITION PROGRAMMER
A diesel-electric locomotive transition programmer includes a digital axle speed transducer and digital solid state logic isolated from transients in the environment of a moving locomotive. A...
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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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3812411 |
DYNAMIC BRAKING OF A GAS TURBINE POWERED SHIP PROPULSION SYSTEM UTILIZING A D. C. ELECTRIC DRIVE
Dynamic braking of a ship's propeller powered by a turboelectric drive sym is achieved by dissipating the rotational energy of the propeller through the windage loss of the gas turbine rotor....
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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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3745366 |
DUAL SOURCE AUXILIARY POWER SUPPLY
An auxiliary power supply system for providing controlled alternating current in an electric motor traction vehicle driven by a prime mover through a traction alternator. During normal traction...
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3730573 |
SYSTEM FOR REGENERATIVE LOAD ABSORPTION
A system for regenerative load absorption is provided for an arrangement in which a prime mover drives a plurality of d.c. generators arranged on a common shaft, and cooperating to energize a...
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3719881 |
DEVICE FOR CHARGING STORAGE BATTERY
Battery charger comprising means for detecting the specific gravity of the electrolyte of the battery and for closing the ignition and starter circuits of the internal combustion engine when the...
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3702959 |
ELECTRIC CONTROL MOUNTING, NOTABLY FOR MOTORIZED LIFT TRUCK
This electric mounting, including a coupler and a reversing switch, is inded primarily but not exclusively for controlling the operation of a fork lift truck and comprises essentially in a...
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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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3697763 |
ADJUSTABLE SPEED ELECTRIC POWER MEANS AND SYSTEM
Electrical power means and system in which at least two D.C. dynamo-electric machines are electrically connected and mechanically drivingly connected through differential gearing with a common...
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3650345 |
CONTROL SYSTEM FOR ALTERNATELY BATTERY-OPERATED AND ENGINE-POWERED VEHICLE
Automotive vehicle of the hybrid-powered type wherein the traction wheels are driven at low speeds by electric energy stored in a battery and at high speeds by an internal-combustion engine...
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3565202 |
CONTROL SYSTEM FOR ELECTRIC VEHICLE DRIVE
To meet the special control problems arising in electric drive vehicle wherein a split shaft gas turbine engine drives a generator through its power turbine, a control system employs a closed loop...
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3560759 |
WHEEL SLIP PROTECTION DEVICE
A device for protecting against slipping of a drive or traction wheel includes means deriving a first traction reduction component which is largely variable during slipping of a traction wheel, and...
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