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Class Information
Number: 318/434
Name: Electricity: motive power systems > Limitation of motor load, current, torque or force (e.g., preventing overload)
Description: Subject matter in which means are provided for preventing the load connected or applied to the motor, the armature or primary current of the motor, the watts supplied to the motor, or the torque or force exerted by the motor from merely exceeding a predetermined maximum or predetermined minimum value.










Patents under this class:

Patent Number Title Of Patent Date Issued
8247923 Method for operating a photovoltaic system and photovoltaic system for carrying out the method Aug. 21, 2012
8246120 Fully electrically controlled electrical braking system for a road vehicle Aug. 21, 2012
8232758 Controller of electric motor having function of estimating inertia and friction simultaneously Jul. 31, 2012
8232756 Motor control apparatus Jul. 31, 2012
8232754 Control device for electrically driven door Jul. 31, 2012
8228648 Compressor protection and grid fault detection device Jul. 24, 2012
8228647 Electrical power diagnostic system Jul. 24, 2012
8222849 Motor control method for MDPS system Jul. 17, 2012
8217608 Electric power supply device Jul. 10, 2012
8217607 Safety device for power window, opening/closing control method and plate-glass processing method Jul. 10, 2012
8213137 Solid state relay controller Jul. 3, 2012
8203295 Motor starting control method, motor driving system and motor system Jun. 19, 2012
8198849 Method and device for protection against jamming in a motor-driven locking system Jun. 12, 2012
8195374 Control device for motor that drives a vehicle Jun. 5, 2012
8188694 Parallel power inverter motor drive system May. 29, 2012
8183808 Motor overload protecting method May. 22, 2012
8179069 Electric power tool, control unit and recording medium May. 15, 2012
8174226 Current limit control method of DC motor and related device and circuit May. 8, 2012
8174225 Limiting peak electrical power drawn by mining excavators May. 8, 2012
8174224 Torque production in an electric motor in response to current sensor error May. 8, 2012
8169177 Electric vehicle May. 1, 2012
8169174 Motor circuit and electric power steering apparatus May. 1, 2012
8169173 Method for controlling a vehicle drive unit May. 1, 2012
8164287 Motor drive control apparatus and method Apr. 24, 2012
8159792 Motor control device Apr. 17, 2012
8159170 Integral type air conditioner Apr. 17, 2012
8159165 Motor drive circuit Apr. 17, 2012
8148929 Power electronic module IGBT protection method and system Apr. 3, 2012
8143831 Regulating device for regulating the voltage on a high-side load Mar. 27, 2012
8143827 Error recognition by evaluation of parameters of the field oriented regulation Mar. 27, 2012
8138712 Motor drive system and its control method Mar. 20, 2012
8138704 Methods and systems for detecting current sensor error Mar. 20, 2012
8138703 Method and apparatus for constraining output torque in a hybrid powertrain system Mar. 20, 2012
8138702 Control method and motorstarter device Mar. 20, 2012
8134321 Motor control system for achieving peak torque Mar. 13, 2012
8134320 Fuel cell drive system Mar. 13, 2012
8134319 Compensation of motor control using current-RPM relation for a ventilation system Mar. 13, 2012
8129935 Motor control device Mar. 6, 2012
8125747 Method for mitigating negative sequence effect resulting from non-symmetrical short circuit failure of synchronous electric machine based systems Feb. 28, 2012
8125171 Process for driving an electric machine and driver system therefor Feb. 28, 2012
8121765 System constraints method of controlling operation of an electro-mechanical transmission with two external input torque ranges Feb. 21, 2012
8115445 Operation control method and operation control apparatus for variable speed generator-motor Feb. 14, 2012
8115437 Torque limit of PM motors for field-weakening region operation Feb. 14, 2012
8111027 Motor drive device Feb. 7, 2012
8106614 Mirror adjustment mechanism, wing mirror unit and method Jan. 31, 2012
8098035 Motor control unit Jan. 17, 2012
8091679 Electric power steering device Jan. 10, 2012
8091529 Regulating method for a volume control Jan. 10, 2012
8089736 Driving device and protection method thereof Jan. 3, 2012
8089235 Electric driver unit Jan. 3, 2012











 
 
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