| Patents for B60L 3 - Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration, power consumption (7,973) |
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| 11/01/1990 | WO1990012702A1 Control system |
| 10/25/1990 | DE3913059A1 Regelsystem Control system |
| 10/18/1990 | WO1990011919A1 Synchronous wheel slip strategy for a locomotive governor |
| 10/18/1990 | WO1990011909A1 Locomotive differential wheel slip control |
| 10/03/1990 | CN2063103U Tester for locomotive main loop grounding instantaneously |
| 09/20/1990 | WO1990010553A1 Motor control apparatus and method |
| 09/18/1990 | CA1274306A1 Process and system for locating a mobile in a railway network |
| 08/21/1990 | US4950964 Locomotive differential wheel slip control |
| 08/14/1990 | US4949263 Load handling vehicle monitoring system |
| 08/09/1990 | DE3902339A1 Data capturing arrangement for a battery-operated vehicle |
| 08/07/1990 | US4947155 Leakage resistance detector and alarm circuit |
| 08/02/1990 | DE3902846A1 Method and arrangement for controlling the drive force and/or braking force of the drive motors of a tractive unit, providing total adhesion, at the friction engagement threshold of the wheels |
| 07/31/1990 | US4944539 Differential creepage control system for optimizing adhesion of locomotives |
| 07/31/1990 | CA1272269A1 Wheel slip control using differential signal |
| 07/18/1990 | CN1043906A Apparatus and method for controlling electrically-propelled vehicles |
| 06/27/1990 | EP0374960A2 Control equipment of electric rolling stock |
| 06/26/1990 | US4937719 Resonance damping apparatus for LC filter of power converter |
| 06/14/1990 | WO1990006607A1 A monitoring device for at least one current pick-up of a transport truck of a rail-borne conveyor |
| 06/12/1990 | US4933857 Traction control apparatus for vehicle engine |
| 06/06/1990 | EP0371427A2 An arrangement for preventing inductive interference in electric car |
| 06/06/1990 | CN1042687A Locomotive wheelslip control system |
| 05/10/1990 | DE3837908A1 Method and arrangement for controlling the drive force and/or braking force of the drive motors of a running axle-less tractor unit at the frictional engagement limit of the wheels |
| 05/08/1990 | US4924395 Synchronous wheel slip strategy for a locomotive governor |
| 04/18/1990 | CN1007688B Induction motor control apparatus and method for restart when rotating in shutdown |
| 04/10/1990 | US4915328 Control method of electric vehicle |
| 04/04/1990 | EP0360870A1 Control and display device for a battery powered forklift truck |
| 03/13/1990 | CA1266713A1 Control apparatus for maintaining traction in electric rolling stock |
| 02/28/1990 | CN1006975B Control apparatus for an electric railway rehicle |
| 02/20/1990 | CA1266117A1 Automatic ground fault protection for an electric power system |
| 01/30/1990 | US4897882 Motor control apparatus and method |
| 01/30/1990 | US4897640 Method and electrical circuit for the reliable detection of process states within freely couplable units |
| 01/24/1990 | EP0351453A2 Load handling vehicle monitoring system |
| 01/24/1990 | CN1006539B Control system for keeping tractive force of railway vehicles |
| 01/23/1990 | US4896090 Locomotive wheelslip control system |
| 01/18/1990 | DE3837909C1 Method and arrangement for measuring speed and displacement in the case of motive power (tractive) units providing total adhesion |
| 01/16/1990 | US4894745 Method and apparatus for protecting against semiconductor power control failure |
| 12/27/1989 | CN1006211B Control apparatus for maintaining tow of the motor railcars |
| 12/12/1989 | CA1263884A1 Control system for reversing the rotation of a field wound motor |
| 12/05/1989 | US4885693 Wheel-slip detection system |
| 10/11/1989 | EP0336046A1 Control method of electric vehicle |
| 09/26/1989 | CA1260057A1 Motor control apparatus |
| 09/05/1989 | US4863123 Process and system for localizing a mobile unit which travels on a system of railroads |
| 08/29/1989 | US4862433 Timer circuit for drag operation in an engineman monitoring device |
| 08/29/1989 | US4862048 Speed control system |
| 08/24/1989 | WO1989007538A1 Control and display device of battery car |
| 08/02/1989 | CN1034426A Automobile-carried monitoring and recording instrument |
| 07/27/1989 | WO1989006840A1 Train control having improved wheel wear adjustment for more accurate train operation |
| 07/26/1989 | EP0325377A2 Control device for an electric vehicle |
| 07/04/1989 | US4845414 Method of protecting the electric drive of a vehicle against overload |
| 06/28/1989 | EP0321676A1 Electrically propelled vehicle |
| 04/25/1989 | US4825189 Train monitoring equipment |
| 04/04/1989 | US4819168 Train control having improved wheel wear adjustment for more accurate train operation |
| 04/04/1989 | CA1252182A1 Control system for maintaining traction in a rolling stock |
| 03/28/1989 | US4817019 Inspecting apparatus for measuring sensors mounted on train |
| 03/07/1989 | US4809616 Device for controlling drive couplings of the axles of a locomotive |
| 01/31/1989 | US4801855 Method and system for controlling chopper |
| 01/17/1989 | US4799161 Control apparatus for maintaining traction in electric rolling stock |
| 12/20/1988 | US4792703 Earthed circuit for an electric railway car |
| 12/07/1988 | EP0293697A2 Electric monitoring system for load handling vehicles |
| 12/06/1988 | CA1246188A1 Ground fault voltage limiting for a locomotive electric traction motor |
| 11/30/1988 | CN87107828A Analog rectification type relay protective device |
| 11/17/1988 | DE3714404A1 Method and circuit arrangement for controlling the torque of an asynchronous machine using a delay element |
| 10/26/1988 | EP0287862A1 Traction control apparatus for vehicle engine |
| 10/04/1988 | US4775263 Arrangement for operating a self-propelled vibratory plate device and method for using said arrangement |
| 08/10/1988 | CN87216123U Analog-rectifier relay protection unit |
| 07/27/1988 | EP0275341A1 Method for exact determination of the distance covered by agricultural tools |
| 07/19/1988 | US4757712 Electric monitoring system for load handling vehicles |
| 06/21/1988 | US4752723 For driving a shunt motor |
| 06/15/1988 | EP0270850A1 Method of protecting the electrical drive motor of a vehicle against overload |
| 05/18/1988 | EP0267548A2 Device for control of an inverter fed rotating field machine |
| 05/05/1988 | DE3636260A1 Motor vehicle with at least one permanently driven axle and an axle with engageable drive |
| 05/03/1988 | US4742460 Vehicle protection system |
| 04/27/1988 | CN87213341U Speed/cyclo-meter by wire |
| 03/29/1988 | CA1234616A1 Vehicle protection system |
| 01/12/1988 | US4719536 Wheel-slip detection system |
| 12/29/1987 | CA1230944A1 Slip-limiting control for rail vehicles |
| 12/03/1987 | WO1987007388A1 Process for checking load resistor circuits |
| 11/26/1987 | DE3616975A1 Verfahren zur ueberpruefung von lastwiederstandskreisen Process for Review of load again stood circuits |
| 10/28/1987 | EP0242809A1 Device for self-propelled hand-operated vibrating plate and process for using said device |
| 10/21/1987 | CN87202309U Automobile speed recoder with microcomputer |
| 10/20/1987 | US4701682 Control system for maintaining traction of rolling stock |
| 09/22/1987 | US4695941 Loss of electrical feedback detector |
| 09/15/1987 | US4694125 Collector device for trolley-assisted vehicles |
| 09/02/1987 | EP0234959A1 Localization method and system for a moving vehicle on a railway network |
| 09/02/1987 | EP0130981B1 Short circuit protection apparatus |
| 08/25/1987 | US4689602 Railway car order selecting system |
| 08/12/1987 | EP0231661A2 Positive route identification |
| 08/04/1987 | US4685052 Pulse train presence detector |
| 08/04/1987 | US4684868 Induction motor control apparatus and method for restart when rotating in shutdown |
| 07/16/1987 | WO1987004127A1 Method and system for localising a moving body circulating on a railway track |
| 06/17/1987 | CN86107129A Induction motor control apparatus and method for restart when rotating in shutdown |
| 06/10/1987 | CN86106879A Automatic ground fault protection for an electric power system |
| 04/29/1987 | EP0130979B1 Current limit control circuit |
| 04/22/1987 | EP0218839A2 A control apparatus for maintaining traction in electric rolling stock |
| 04/22/1987 | CN86105005A Control apparatus for maintaining tow of the motor railcars |
| 04/01/1987 | EP0216039A2 A control system for reversing the rotation of a field wound motor |
| 03/17/1987 | US4651317 Time division multiplex data transmission system |
| 03/17/1987 | US4651071 Brake control system for supplementing electric brake with friction brake |
| 03/17/1987 | CA1293043E Railroad communication |
| 03/17/1987 | CA1219326A1 Railroad communication system |