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Class Information
Number: 318/802
Name: Electricity: motive power systems > Induction motor systems > Primary circuit control > Responsive to motor condition > Responsive to speed or rotation phase angle > With controlled power conversion > Including inverter > Responsive to an additional condition
Description: Subject matter wherein the circuit connected to the primary member of the motor is responsive to another condition as well as being responsive to the speed or the rotational phase angle of the motor.










Sub-classes under this class:

Class Number Class Name Patents
318/803 With controlled a.c. to d.c. circuit in inverter supply 349


Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
8710782 Parallel power inverter motor drive system Apr. 29, 2014
8664907 Fast switching for power inverter Mar. 4, 2014
8618765 Apparatus and method of controlling an electric oil pump driving motor Dec. 31, 2013
8584459 Engine induction system Nov. 19, 2013
8575879 Methods, systems and apparatus for controlling a multi-phase inverter Nov. 5, 2013
8558497 Reduced electromagnetic interference for pulse-width modulation Oct. 15, 2013
8541962 Motor driving apparatus Sep. 24, 2013
8519653 Control device and control method for AC motor Aug. 27, 2013
8513911 Power converters Aug. 20, 2013
8497649 Motor driving control apparatus for controlling motor output according to power characteristics of AC power supply Jul. 30, 2013
8421398 Power control for induction motors using variable frequency AC power Apr. 16, 2013
8410746 Inverter circuit for vehicles Apr. 2, 2013
8405344 Method and apparatus for estimating a rotation speed of an electric motor Mar. 26, 2013
8340848 Method and system for sensorless control of an electric motor Dec. 25, 2012
8339093 System and method of dynamic regulation of real power to a load Dec. 25, 2012
8294411 Sensorless induction motor control device having function of correcting slip frequency of motor Oct. 23, 2012
8283885 Driver circuit Oct. 9, 2012
8264190 Control apparatus for multi-phase rotary machine and electric power steering system Sep. 11, 2012
8264191 Load commutated current source inverter Sep. 11, 2012
8259474 Pulse width modulation control of a matrix converter Sep. 4, 2012
8222857 Motor controlling device Jul. 17, 2012
8207700 Electric motor drive Jun. 26, 2012
8198837 Device and method for measuring and controlling the speed and torque of a DC motor Jun. 12, 2012
8188694 Parallel power inverter motor drive system May. 29, 2012
8188702 Rotating electrical machine control system and vehicle drive system May. 29, 2012
8183816 Method for field-oriented operation to zero speed of an encoder-less asynchronous machine May. 22, 2012
8174222 Methods, systems and apparatus for dynamically controlling an electric motor that drives an oil pump May. 8, 2012
8154241 In-vehicle electronic control apparatus and steering control system Apr. 10, 2012
8143837 Inverter control apparatus Mar. 27, 2012
8143839 Alternating-current motor control apparatus Mar. 27, 2012
8129936 Open-loop and/or closed-loop control system of a 3-phase power converter for the operation of an asynchronous machine Mar. 6, 2012
8125178 Drive and method Feb. 28, 2012
8125179 Controlling a power of an electrical motor Feb. 28, 2012
8076881 System and method for controlling an electric motor Dec. 13, 2011
8076884 Control apparatus for electric vehicles Dec. 13, 2011
8076898 Method of brushless DC motor control and its application Dec. 13, 2011
8054014 Control system for an electrical machine Nov. 8, 2011
8044632 Power conversion device Oct. 25, 2011
8040093 Motor controller Oct. 18, 2011
8030878 Motor driving device having power failure detection function Oct. 4, 2011
8022658 Motor control system including electrical insulation deterioration detecting system Sep. 20, 2011
8013564 Multi-phase AC motor driving device Sep. 6, 2011
7990093 Electric motor control apparatus Aug. 2, 2011
7990099 Power converting device for electric train Aug. 2, 2011
7969039 Method of controlling fuel cell vehicle and method of controlling DC/DC converter apparatus Jun. 28, 2011
7960938 Method and apparatus for determining motor rotation status Jun. 14, 2011
7948721 AC motor bypass with fault annunciation, serial communication and fault tolerant coil control May. 24, 2011
7948201 Induction motor control device May. 24, 2011
7932693 System and method of controlling power to a non-motor load Apr. 26, 2011
7911165 Device for controlling an electromechanical actuator Mar. 22, 2011

1 2 3 4 5 6 7










 
 
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