| Patents for B60L 11 - Electric propulsion with power supplied within the vehicle (32,057) |
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| 04/30/1992 | DE4134268A1 Car IC engine drive system - has automatic gearbox and cut=out clutch at gearbox output side |
| 04/29/1992 | EP0482138A1 Device and process for charging the battery of a self-powered electric transport vehicle. |
| 04/29/1992 | CN2102859U High-speed electrically operated motor car |
| 04/25/1992 | WO1992008278A1 Induction motor propulsion system for powering and steering vehicles |
| 04/25/1992 | CA2070643A1 Induction motor propulsion system for powering and steering vehicles |
| 04/22/1992 | EP0481743A1 Method of displaying a residual electric charge in a battery of an electrically driven vehicle |
| 04/22/1992 | CN2102213U Light electric stairs climbing cart |
| 04/22/1992 | CN2102212U Long distance run electric bicycle |
| 04/16/1992 | WO1992006530A1 An electric power train for vehicles |
| 04/16/1992 | WO1992005974A1 Control system for electric motor vehicle |
| 04/16/1992 | DE4031920A1 Electrically-driven automobile using 12v batteries - has belt drive between starter motors operated from battery and electricalalternators |
| 04/15/1992 | CN1060370A Automatic flashover protection for locomotive traction motors |
| 04/14/1992 | US5103923 Method and apparatus for propelling and retarding off-road haulers |
| 04/02/1992 | WO1992005611A1 Automatic flashover protection for locomotive traction motors |
| 04/01/1992 | CN1059872A Parts of vehicle |
| 03/26/1992 | DE4032606A1 Electric powered road vehicle - has auxiliary IC engine driving at constant RPM generator used exclusively for charging batteries of vehicle |
| 03/25/1992 | EP0476405A1 Automatic storage monitoring and battery exchange system for electrically driven transport vehicles |
| 03/24/1992 | US5099186 Integrated motor drive and recharge system |
| 03/18/1992 | EP0475106A1 Transporter system |
| 03/12/1992 | DE4027706A1 Non-contact electric drive for wheeled vehicles - uses magnetic field forforce transmission on to wheels without mechanical intermediate steps |
| 03/10/1992 | CA1297149C Control systems for an electric drive |
| 03/05/1992 | DE4027147A1 Control and battery supply connector for electric locomotive - connects battery box terminals in control casing between two battery boxes and drive motors |
| 03/04/1992 | EP0472951A1 Driving device for a self-propelled vehicle |
| 02/26/1992 | CN2097118U Solar electric pedal bicycle |
| 02/25/1992 | US5091687 Apparatus for exchanging and charging of energy storages of transport vehicles |
| 02/20/1992 | DE4015317A1 Sec. cell battery using mobile electrochemically active materials - pumped into ion exchange membrane chamber and recirculated to residual spaces in reagent containers |
| 02/12/1992 | EP0470143A1 Self-synchronous electric machine with controlled flow |
| 02/12/1992 | CN2095798U Power device for electric bicycle |
| 02/12/1992 | CN1015428B Electrically-propelled vehicle with circulating charging system |
| 02/11/1992 | US5087865 Power governance circuitry |
| 02/05/1992 | EP0468960A1 Power transferring arrangement. |
| 02/04/1992 | US5086264 Motor torque compensation of an induction electric motor by adjusting a slip command during periods of supposed change in motor temperature |
| 01/29/1992 | CN1058184A 电动汽车 Electric vehicles |
| 01/28/1992 | US5084658 Motor speed control system for an electrically powered vehicle |
| 01/22/1992 | CN2093785U Electrically-propelled bicycle |
| 01/14/1992 | US5081365 Electric hybrid vehicle and method of controlling it |
| 01/08/1992 | CN1057614A Electric vehicle |
| 12/25/1991 | CN2091245U Electric moving platform-car |
| 12/12/1991 | WO1991018495A2 New electric circuit system |
| 12/11/1991 | EP0460850A2 Motor vehicles |
| 12/11/1991 | EP0459998A1 Method and apparatus for dc motor speed control |
| 12/10/1991 | US5070959 Work vehicle having an electric propulsion system with adapted overspeed limit for traction motors |
| 12/05/1991 | DE4042377A1 DC electric drive e.g. for traction of vehicle or locomotive |
| 12/04/1991 | CN2089894U Strong switch for transistor chopper |
| 12/03/1991 | US5070283 Traction motor controller for forklift vehicles |
| 12/03/1991 | CA1292796C Electronic motor control system for conveyance such as a wheelchair |
| 12/03/1991 | CA1292795C Conveyance with electronic control for left and right motors |
| 11/21/1991 | EP0457594A2 A regenerative brake device for electric motor vehicles |
| 11/21/1991 | DE4014696A1 Anordnung und verfahren zum laden eines akkumulators einer transportvorrichtung mit eigenem elektro-antrieb Arrangement and method for charging a battery of a transporter with its own electro-drive |
| 11/14/1991 | WO1991017599A1 Device and process for charging the battery of a self-powered electric transport vehicle |
| 11/13/1991 | EP0456345A1 Traction motor optimizing system for forklift vehicles |
| 11/13/1991 | EP0456344A1 Traction motor controller for forklift vehicles |
| 11/13/1991 | EP0455709A1 Method and device for controlling an energy conversion system |
| 11/12/1991 | CA1292051C Motor vehicle driving system |
| 10/31/1991 | WO1991016755A1 A drive assistance device for a golf buggy |
| 10/31/1991 | DE4013506A1 DC-operated drive system - has voltage converter between DC source and DC-AC converter supplying motor |
| 10/17/1991 | WO1991015379A1 Speed control system |
| 10/17/1991 | WO1991015378A1 Electric vehicle with individually controlled drive electromotors |
| 10/17/1991 | WO1990008996A3 Method and apparatus for dc motor speed control |
| 10/17/1991 | DE4011291A1 Elektrofahrzeug mit einzeln gesteuerten antriebs-elektromotoren Electric vehicle with individually controlled drive electric motors |
| 10/16/1991 | EP0451551A1 Electrical driving device for a vehicle |
| 10/16/1991 | CN1055328A Variable voltage limit control for electric propulsion system |
| 10/15/1991 | US5058016 Computerized electrical vehicle |
| 10/10/1991 | DE4109379A1 Vehicle hybrid drive operating control - maintains constant RPM of IC engine at optimum fuel economy and exhaust emission point |
| 10/08/1991 | CA1290389C Speed reducing control system for a polyphase electric motor |
| 10/02/1991 | EP0449397A2 Power supply device for a load of a trailer vehicle |
| 10/01/1991 | US5053632 Electric braking and auxiliary engine mechanism for a motor vehicle |
| 10/01/1991 | CA1289892C Automatic hybrid electric/ice vehicle with full time ice cruise control |
| 09/17/1991 | US5049802 Charging system for a vehicle |
| 09/05/1991 | WO1991013389A1 Charging system for a vehicle |
| 09/04/1991 | EP0444672A1 Speed controller of electric-motor vehicle |
| 08/13/1991 | US5039924 Traction motor optimizing system for forklift vehicles |
| 08/07/1991 | CN2082243U Electrical carry-vechicle |
| 07/31/1991 | CN2081813U Electric go-kart |
| 07/31/1991 | CN2081812U Reciprocating movement type electric pram |
| 07/17/1991 | EP0437266A2 Vehicle with internal combustion engine, current generator, flywheel storage and electric drive motor |
| 07/16/1991 | US5033000 Variable keyed power distribution and control system for motorized wheelchair |
| 07/09/1991 | US5030898 Variable voltage limit control for an electric propulsion system |
| 07/02/1991 | US5029229 Electric motor |
| 07/02/1991 | CA1285609C Induction motor control apparatus and method |
| 06/27/1991 | WO1991008919A1 Power unit for vehicles |
| 06/26/1991 | CN2079581U One-sided operation protector for dump device with electric wheels and dual-motors |
| 06/21/1991 | WO1991009461A1 Direct current power control circuit |
| 06/13/1991 | WO1991008123A1 Twin-axle vehicle |
| 06/13/1991 | WO1991008122A1 Twin-axle vehicle |
| 06/05/1991 | CN2078249U Motor-driven automobile capably operated at both end |
| 06/05/1991 | CN1051891A Electrical driving vehicle |
| 06/05/1991 | CN1051890A Electric propulsion system with adaptive overspeed limit for traction vehicles |
| 05/31/1991 | WO1991008121A1 Method and apparatus for propelling and retarding off-road haulers |
| 05/29/1991 | EP0429058A2 Electric automobile |
| 05/21/1991 | CA1284351C Induction motor synthesis control apparatus and method |
| 05/08/1991 | EP0425758A1 Electrical connecting system of a socket of a multipole connecting device |
| 05/02/1991 | EP0424906A1 Automatically charging system for electric automobile |
| 05/02/1991 | EP0424868A2 Electrical drive system for a vehicle motor |
| 05/02/1991 | EP0424577A1 Electric traction system |
| 05/01/1991 | CN2076046U Subminiature electric cycle for woman or aged man |
| 04/30/1991 | US5012165 Conveyance with electronic control for left and right motors |
| 04/27/1991 | CA2028493A1 Electric traction system |
| 04/25/1991 | DE3935304A1 Combined alternative energy prodn., storage and drive system - uses regenerative braking to transfer energy to synthetic fibre cpd. or ceramic flywheel in vacuum chamber |
| 04/25/1991 | DE3935228A1 Vehicular drive with power-branching planetary gear train - allows order-of-magnitude difference of power ratings of engine and electric or hydraulic regulating motor |