Patents
Patents for B60L 15 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performance; Adaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train (8,438)
02/1990
02/21/1990CN2053167U Electric controller for electric bicycle
02/13/1990US4900992 Apparatus and method for controlling electric car
02/08/1990DE3826097A1 Method for controlling the direction and speed of electrically driven wheelchairs, and an arrangement for carrying out the method
01/1990
01/30/1990US4897640 Method and electrical circuit for the reliable detection of process states within freely couplable units
01/24/1990CN1006539B Control system for keeping tractive force of railway vehicles
01/10/1990CN1038729A Method and apparatus for controlling carriage of linear motor
12/1989
12/28/1989WO1989012562A1 Method and apparatus for controlling the carriage of a linear motor
12/27/1989CN1006211B Control apparatus for maintaining tow of the motor railcars
12/13/1989EP0345785A2 Variable keyed power distribution and control system for motorized wheelchair
12/07/1989DE3817652A1 Electrically operated tractive unit with at least two drive systems
11/1989
11/22/1989CN1037435A Linear motor propulsion system
11/15/1989CN2047642U Step controller
10/1989
10/31/1989US4878049 Information transmission system for railway vehicles
10/31/1989US4876966 Transport control system with linear motor drive
10/11/1989EP0336046A1 Control method of electric vehicle
08/1989
08/30/1989EP0330402A2 Braking of electric motors
08/24/1989WO1989007538A1 Control and display device of battery car
08/01/1989US4853602 System for using synchronous secondaries of a linear motor to biaxially draw plastic films
07/1989
07/25/1989US4852007 Method and device for stopping vehicle at predetermined position
07/19/1989EP0324101A2 Electric wheelchair
07/18/1989US4849664 Linear motor car system
07/12/1989EP0323837A1 Apparatus and method for controlling electric car
07/12/1989CN2040861U Speed-regulating device for electrically-driven wheelchair
07/04/1989US4845414 Method of protecting the electric drive of a vehicle against overload
06/1989
06/28/1989EP0321473A1 A system useful for controlling multiple synchronous secondaries of a linear motor along an elongated path.
06/07/1989EP0318530A1 An apparatus for interactively accelerating an electric drive vehicle.
06/07/1989EP0318484A1 System for using synchronous secondaries of a linear motor to biaxially draw plastic films.
06/06/1989US4836344 Roadway power and control system for inductively coupled transportation system
05/1989
05/17/1989CN2037697U Speed adjuster for two-seater electric tricycle
05/10/1989EP0315210A1 Computerized electrical vehicle
05/02/1989US4825500 Speed and steering control for a floor maintenance machine
04/1989
04/25/1989US4825132 Current mode motor control
04/25/1989US4825111 Linear motor propulsion system
04/12/1989EP0311355A2 Electric motor controllers
04/04/1989CA1252182A1 Control system for maintaining traction in a rolling stock
03/1989
03/21/1989US4814631 Electrical power supply having a variable output
02/1989
02/28/1989US4807716 Motorized carrying cart and method for transporting
02/14/1989US4804893 Electric braking control
02/09/1989DE3725923A1 Converter system having an intermediate-circuit DC voltage which is obtained by means of a rectifier
02/01/1989EP0301164A2 Electrical drive or generator
01/1989
01/31/1989US4801855 Method and system for controlling chopper
01/31/1989US4800977 Control system for driving and steering driverless transport devices
01/31/1989US4800818 Linear motor-driven conveyor means
01/25/1989EP0300185A2 Wheel-chair
01/25/1989EP0300126A1 Vehicle with internal combustion motor, generator and electrical drive motor
01/25/1989EP0300125A1 Electrical drive or generator
01/25/1989EP0300124A1 Electrical drive or generator
01/25/1989EP0300123A1 Electrical drive or generator
01/18/1989EP0299137A1 Electrical drive or generator
01/17/1989US4799161 Control apparatus for maintaining traction in electric rolling stock
01/11/1989EP0298194A2 Electrical drive
01/04/1989EP0297127A1 Double differential, electrically compensated constant speed drive
01/03/1989US4795902 Optical master controller having plural tracks each with plural emitter detector pairs
01/03/1989US4795859 Control device for electric train
12/1988
12/29/1988WO1988010531A1 A system useful for controlling multiple synchronous secondaries of a linear motor along an elongated path
12/29/1988WO1988010188A1 System for using synchronous secondaries of a linear motor to biaxially draw plastic films
12/20/1988US4792736 Control apparatus for electric vehicles
12/14/1988EP0294731A2 Production line and method for the production of work pieces thereon
12/14/1988EP0294541A1 Electrical drive or generator
12/01/1988WO1988009583A1 An apparatus for interactively accelerating an electric drive vehicle
11/1988
11/24/1988DE3716375A1 Motor-driven pole vehicle
11/15/1988CA1244927A1 Vehicle control system
11/09/1988EP0289868A2 Roadway power and control system for inductively coupled trans portation system
10/1988
10/25/1988CA1243756A1 Series connected series motors for independent loads
10/12/1988EP0285643A1 Axle with magnetic steering for railway vehicle.
10/11/1988US4777420 Induction motor control apparatus and method
09/1988
09/20/1988US4772838 Tri-state switching controller for reciprocating linear motors
09/20/1988US4772829 Apparatus for interactively accelerating an electric drive vehicle
09/06/1988US4769580 Electromagnetic linear drive
09/06/1988US4768740 Vehicle tracking system
08/1988
08/31/1988EP0280478A2 Regenerative braking systems
08/30/1988US4767940 Electronic sensing and control circuit
08/30/1988US4766967 Oscillation control system for electric motor drive
08/02/1988CA1239877A1 Control system for driving and steering driverless transport devices
07/1988
07/12/1988US4757240 Apparatus for controlling electric vehicle using induction motor
06/1988
06/30/1988WO1988004860A1 Double differential, electrically compensated constant speed drive
06/21/1988US4752723 For driving a shunt motor
06/15/1988EP0270850A1 Method of protecting the electrical drive motor of a vehicle against overload
05/1988
05/03/1988US4742461 Method of controlling frictionally engageable couplings of an automatic transmission of a motor vehicle
05/03/1988CA1236183A1 Lim secondary reactance compensation and thrust control
04/1988
04/26/1988CA1235732A1 Power supply apparatus for linear motor
04/21/1988WO1988002712A1 Axle with magnetic steering for railway vehicle
04/12/1988CA1235194A1 Transport control system with linear motor drive
03/1988
03/29/1988US4734626 Double differential, electrically compensated constant speed drive
03/08/1988CA1233874A1 Chopper frequency determination apparatus
03/03/1988DE3629099A1 Method for operating a battery-operated electric vehicle
03/02/1988EP0052343B1 Electric machine
02/1988
02/02/1988US4723103 Control equipment for an electro-magnetic linear motor
01/1988
01/26/1988US4721892 Power supply apparatus for linear motor
01/26/1988US4721045 Transport control system with linear motor drive
01/26/1988CA1231886A1 Wheelchair direction control means
01/20/1988EP0253333A1 Drive design for mobile x-ray units
12/1987
12/29/1987US4716346 Conveying apparatus
12/23/1987EP0250047A2 Tri-state switching controller for reciprocating linear motors
12/01/1987US4709771 Speed and steering control for a floor maintenance machine
11/1987
11/24/1987US4709194 Method of controlling the mode of driving electric vehicles
11/24/1987US4708402 Brake signal conversion device for railway cars
11/05/1987WO1987006551A1 Flexible material transport system
10/1987
10/28/1987EP0242654A2 Speed and steering control for a floor maintenance machine
10/27/1987US4702713 Electric trolling motor foot control mount
1 ... 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85