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Class Information
Number: 318/400.09
Name: Electricity: motive power systems >
Description:










Sub-classes under this class:

Class Number Class Name Patents
318/1 Electric motor with nonmotor driving means (e.g., axle drive, manual drive) 10
318/114 Impact, mechanical shock, or vibration-producing motors 169
318/115 Motor with diverse motions (e.g., rotary and reciprocating) 60
318/116 Nonmagnetic motor 255
318/118 Magnetostrictive motor 63
318/119 Reciprocating or oscillating motor 119
318/135 Linear-movement motors 707
318/136 Auxiliary means for producing mechanical starting or accelerating torque 12
318/138 Space-discharge-device commutated motor 1,487
318/139 Battery-fed motor systems 1,256
318/140 Generator-fed motor systems having generator control 165
318/159 Having rotor element biased against rotation 21
318/16 Supplied or controlled by space-transmitted electromagnetic or electrostatic energy (e.g., by radio) 276
318/161 With flywheel or massive rotary member 65
318/162 Control by patterns or other predetermined schedule means 38
318/17 Portable-mounted motor and/or portable-mounted electrical systems therefor 62
318/244 Alternating current commutating motors 57
318/246 Series motors 40
318/253 Homopolar or uniform field motors 5
318/254 Self-commutated impulse or reluctance motors 2,683
318/255 Plural diverse motor controls 67
318/280 Motor-reversing 539
318/3 With particular motor-driven load device 99
318/34 Plural, diverse or diversely controlled electric motors 296
318/362 Braking 196
318/383 "anti-braking" or braking-prevention means 11
318/430 Motor load, armature current or force control during starting and/or stopping 379
318/432 Constant motor current, load and/or torque control 1,453
318/434 Limitation of motor load, current, torque or force (e.g., preventing overload) 1,374
318/436 Nonrunning, energized motor 60
318/437 Phasing or angular or linear positional control of movable element of the motor 122
318/438 Power factor control of armature or line circuit 100
318/439 Motor commutation control systems 1,435
318/440 Having plural, diverse or diversely controlled sources 80
318/443 Periodic, repetitious or successive operations control of motor, including "jog" and "inch" control 308
318/445 Automatic and/or with time-delay means (e.g., automatic starting and/or stopping) 396
318/490 With signals, meters, recorders or testing devices 359
318/491 Control of both motor circuit and motor structure 36
318/492 Motor magnetic energy dissipation 25
318/493 Control of both armature (or primary) circuit and field (or secondary) circuit 58
318/494 Armature (or primary) circuit control 57
318/521 Field or secondary circuit control 16
318/538 Motor structure adjustment or control 58
318/543 Three-or-more-positions motor controller systems 9
318/558 Miscellaneous 109
318/560 Positional servo systems (e.g., servomechanisms) 907
318/689 Torquing motors 60
318/690 Self-synchronous type of motor 19
318/696 Open-loop stepping motor control systems 1,310
318/700 Synchronous motor systems 582
318/725 Repulsion motor systems 14
318/727 Induction motor systems 494
318/DIG.2 Windshield wiper controls 361


Patents under this class:

Patent Number Title Of Patent Date Issued
8704467 Inverter device for washing machine Apr. 22, 2014
8704468 Electrodynamic braking device for a universal motor Apr. 22, 2014
8706354 Electric power steering apparatus Apr. 22, 2014
8664900 System for controlling motor of hybrid vehicle Mar. 4, 2014
8653769 Calculating airflow values from HVAC systems Feb. 18, 2014
8648556 Device for control of a PMSM Feb. 11, 2014
8638052 Method and control system for controlling a synchronous electric machine Jan. 28, 2014
8610386 Brushless motor drive circuit and brushless motor drive system Dec. 17, 2013
8587231 Method and system for electronic braking of a motor Nov. 19, 2013
8587245 Motor, control method therefor, and cluster control system comprising the same Nov. 19, 2013
8587232 System and method for aligning a resting rotor to a known position Nov. 19, 2013
8587230 Method and system for prevention of motor reversal Nov. 19, 2013
8581540 Method for installing actuation mechanism for extending and retracting retractable room for recreational vehicle Nov. 12, 2013
8541965 Motor controller and electronic power steering apparatus Sep. 24, 2013
8536810 Control device and control method for alternating-current motor Sep. 17, 2013
8519650 Method for determining the inductances of a permanent magnet synchronous machine Aug. 27, 2013
8497646 Controller for AC electric motor and electric powered vehicle Jul. 30, 2013
8497647 Motor spindle control system and method Jul. 30, 2013
8487569 Control of an electric machine Jul. 16, 2013
8471504 Motor controller and electric power steering system Jun. 25, 2013
8462470 Auto power-off and actuation circuit for a fan Jun. 11, 2013
8450958 Motor control method, motor control device, fan device, compressor, and pump device May. 28, 2013
8446113 Vehicular electrical system and method for controlling an inverter during motor deceleration May. 21, 2013
8395337 Brushless motor device and control device Mar. 12, 2013
8390229 Washing machine with improved method of braking to a non-zero speed Mar. 5, 2013
8384326 Motor controlling circuit for multiple control modes Feb. 26, 2013
8384325 Motor driving circuit and method for driving motor Feb. 26, 2013
8378602 System and method for aligning a rotor to a known position Feb. 19, 2013
8378603 Method and system for controlling an electric motor using zero current offset value cancellation Feb. 19, 2013
8362724 Blower motor for HVAC systems Jan. 29, 2013
8362725 Retrofit motor system for heating, ventilation, and air conditioning applications Jan. 29, 2013
8344672 Motor drive control circuit Jan. 1, 2013
8339075 Method for controlling a deceleration process of a DC motor and controller Dec. 25, 2012
8340624 Receiver circuit adapted to communication apparatuses operative with different power voltage range Dec. 25, 2012
8330404 Permanent-magnet-type rotating electrical machine Dec. 11, 2012
8310186 Apparatus for carrying out improved control of rotary machine Nov. 13, 2012
8288979 Motor control mechanism for electric vehicles Oct. 16, 2012
8274247 Rotary electric machine control system Sep. 25, 2012
8269437 Rotary electric machine control system Sep. 18, 2012
8269439 Drive controller and drive control method for electric motor Sep. 18, 2012
8264189 Motor controller and electric power tool having the same Sep. 11, 2012
8258735 Power converting apparatus for motor driving Sep. 4, 2012
8258731 Apparatus and method for starting motor Sep. 4, 2012
8258728 Rotary electric machine control system Sep. 4, 2012
8248007 Control apparatus and control method for AC motor Aug. 21, 2012
8248010 Motor driving device, electric power steering device using the same and method for detecting failure in the same Aug. 21, 2012
8242721 Position-sensorless control system and method of operation for a synchronous motor Aug. 14, 2012
8242723 Calculating airflow values for HVAC systems Aug. 14, 2012
8232753 Control device for electric motor drive apparatus Jul. 31, 2012
8212503 Driving circuit for voice coil motor and method thereof Jul. 3, 2012











 
 
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