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Class Information
Number: 318/400.02
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
8710776 Method for controlling a motor Apr. 29, 2014
8710775 Electric power steering apparatus Apr. 29, 2014
8704467 Inverter device for washing machine Apr. 22, 2014
8704469 Torque ripple suppression control apparatus and torque ripple suppression control method for rotating electrical machine Apr. 22, 2014
8692490 Control system for a straight slot direct current motor actuator Apr. 8, 2014
8686672 Motor control device and electric power steering device Apr. 1, 2014
8686673 Control device for electric rotary machine Apr. 1, 2014
8680798 Motor control device and electric power steering device Mar. 25, 2014
8680801 Rotating electrical machine system Mar. 25, 2014
8674632 Motor control device with a correcting unit determining a corrected rotation angle after a predetermined time from a detection time, control program therefor, and method for the control Mar. 18, 2014
8669728 Angle detection apparatus and method for rotor of motor Mar. 11, 2014
8669727 Detection device for detecting magnetic pole position of synchronous motor, and control apparatus equipped therewith Mar. 11, 2014
8664898 Device and method of stopping induction motor Mar. 4, 2014
8664900 System for controlling motor of hybrid vehicle Mar. 4, 2014
8664902 Polyphase AC motor, driving device and driving method therefor Mar. 4, 2014
8664903 Adaptive flux control drive Mar. 4, 2014
8659260 Motor drive apparatus and electric power steering apparatus using the same Feb. 25, 2014
8653771 Controller for motor Feb. 18, 2014
8653768 Flux offset compensation for a rotating electrical machine Feb. 18, 2014
8648552 Control system for an electric machine Feb. 11, 2014
8648555 Method and system for controlling an electric motor at or near stall conditions Feb. 11, 2014
8644992 Method to improve washer motor efficiency and performance Feb. 4, 2014
8643316 Power conversion device Feb. 4, 2014
8638052 Method and control system for controlling a synchronous electric machine Jan. 28, 2014
8624531 Method and system for evaluating electrical connections between a motor controller and motor Jan. 7, 2014
8604739 Vector control for an axial gap motor Dec. 10, 2013
8604732 Inverter unit Dec. 10, 2013
8604730 Electric power converter, driving apparatus and electric power steering apparatus Dec. 10, 2013
8598819 Motor control Dec. 3, 2013
8598826 Electric motor control system Dec. 3, 2013
8593094 Power conversion apparatus of electric vehicle Nov. 26, 2013
8593091 DQ vector control system providing stable, high efficiency operation of electric motor Nov. 26, 2013
8593088 Method and system for controlling an electric motor for a vehicle Nov. 26, 2013
8593087 Magnetic pole position estimation method for AC synchronous motor Nov. 26, 2013
8587244 Method and system for determining deterioration of permanent magnets of electric apparatus Nov. 19, 2013
8581531 Power converter device Nov. 12, 2013
8569990 Block switch controller comprising a closed loop vector controller incorporating a delay state having a feedback gain Oct. 29, 2013
8569981 Motor drive and electric power steering apparatus using the same Oct. 29, 2013
8558490 Estimation of actual torque in an electrical motor drive Oct. 15, 2013
8547041 Power conversion device Oct. 1, 2013
8547045 Method and system controlling an electrical motor with temperature compensation Oct. 1, 2013
8547051 Controller and method for transitioning between control angles Oct. 1, 2013
8541971 Driving system of permanent magnet synchronous motor Sep. 24, 2013
8541965 Motor controller and electronic power steering apparatus Sep. 24, 2013
8531141 System for calibrating an electrical control system Sep. 10, 2013
8531143 Permanent magnet motor with stator-based saliency for position sensorless drive Sep. 10, 2013
8525454 Controller for AC rotary machine Sep. 3, 2013
8519648 Temperature compensation for improved field weakening accuracy Aug. 27, 2013
8519649 Control device of a synchronous motor Aug. 27, 2013
8519650 Method for determining the inductances of a permanent magnet synchronous machine Aug. 27, 2013











 
 
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