| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 318449000 | With respect to a fixed standard, master or reference device | 11 |
| 20080211442 | SEATBELT APPARATUS - This seatbelt apparatus includes: a belt reel around which a belt is wound; a motor which rotationally drives the belt reel; a transmitting device which transmits a driving power between the belt reel and the motor; a controller which drives the motor while controlling an electricity to be supplied to the motor; a rotation-detection device which detects a rotation status of the belt reel. The rotation-detection device outputs, in accordance with a rotation of the belt reel, a plurality of outputs including signals indicating a first state in which a current consumption by the rotation-detection device is larger than a predetermined value, and a second state in which the current consumption by the rotation-detection device is smaller than the predetermined value. The controller executes a first motor-driving process in which the motor is driven based on an output from the rotation-detection device until reaching the second state. | 09-04-2008 |
| 20080218110 | TEMPERATURE TRIPPING DEVICE - The invention relates to a temperature tripping device for reliably shutting down a load, especially a motor, having at least one input for receiving at least one temperature-dependent sensor signal as an input signal, a first evaluation circuit for generating a first output signal if the input signal reaches a preset value, and means for generating a trip signal if the output signal is generated. In addition, a second, redundant, evaluation channel is provided which is supplied with the same input signal as the first evaluation channel and which generates a second output signal if the input signal reaches the preset value, wherein the means for generating a trip signal are connected to the two evaluation channels and generate the trip signal if at least one of the two output signals is generated. | 09-11-2008 |
| 20190149081 | SMART MOTOR DRIVER ARCHITECTURE WITH BUILT-IN MEMS SENSOR BASED EARLY DIAGNOSIS OF FAULTS | 05-16-2019 |
| 318450000 | Electrical detector | 8 |
| 20080303467 | MOTOR CONTROL DEVICE - A motor control device includes a sensing circuit, a phase-shifting circuit, a comparing circuit and a control circuit. The sensing circuit senses the motor to generate a sensing signal. The phase-shifting circuit is electrically connected to the sensing circuit and receives the sensing signal to generate a phase-shifting signal. The comparing circuit is electrically connected to the phase-shifting circuit and receives the phase-shifting signal to generate a comparing signal. The control circuit is electrically connected with the comparing circuit and the motor, and receives the comparing signal to generate a control signal so as to control the rotation speed of the motor. | 12-11-2008 |
| 20090273308 | POSITION SENSORLESS CONTROL OF PERMANENT MAGNET MOTOR - Systems and methods of controlling a permanent magnet motor without a mechanical position sensor are provided. In accordance with one embodiment, a motor control system includes an inverter configured to receive direct current (DC) power and output a power waveform to a permanent magnet motor, driver circuitry configured to receive control signals and drive the inverter based upon the control signals, a current sensor configured to determine a sampled current value associated with the power waveform, and control circuitry configured to generate the control signals based at least in part upon a comparison of a flux-producing component of the sampled current value and a flux-producing component of a command reference current value. | 11-05-2009 |
| 20100308762 | SAFETY ARRANGEMENT OF A TRANSPORT SYSTEM - The invention relates to a method and an appliance for monitoring the safety of a transport system ( | 12-09-2010 |
| 20110304292 | INDEPENDENT DRIVE DEVICE FOR AN AIRCRAFT - The invention relates to an independent drive device for an aircraft, the drive device comprising a motor member, drive means for driving an aircraft wheel in rotation, which means are adapted to co-operate with said wheel to drive it in rotation, and coupling means interposed between the motor member and the drive means to selectively couple the wheel to the motor member, the coupling means comprising two coupling members of complementary shape, comprising a first coupling member constrained to rotate with the drive means and a second coupling member constrained to rotate with the motor member. The independent drive device includes measurement means for generating information representative of a relative speed of rotation of the second coupling member relative to the first coupling member, the device being associated with motor control means adapted to cause the motor to rotate so as to cancel the relative speed of rotation between the coupling members prior to coupling them together. | 12-15-2011 |
| 20120286715 | VENTILATION DEVICE - A ventilating system that can make an air flow rate variable includes a DC motor that drives blades and a control circuit that controls the DC motor. The control circuit includes a first current detecting unit that detects a current flowing in the DC motor, a rotating speed detecting unit that detects a rotating speed of the DC motor, and a control unit that controls the DC motor based on a rotating speed detected by the rotating speed detecting unit and a current detected by the first current detecting unit. The current detecting unit includes a plurality of low-resistance resistors, detects a motor current by using divided voltages of the low-resistance resistors, and calculates a ventilation air flow rate based on the rotating speed detected by the rotating speed detecting unit and the current detected by the first current detecting unit. | 11-15-2012 |
| 20130320902 | MOTOR DRIVING CIRCUIT AND ELECTRONIC APPARATUS USING THE SAME - A motor driving circuit for driving a motor, includes: a detecting circuit configured to detect a detection signal indicative of a current state of the motor; a command value generating unit configured to generate a command value indicative of a target state of the motor; an error amplifier configured to generate an error signal by amplifying an error between the detection signal and the command value; a pulse width modulator configured to generate a pulse signal; and an output circuit. The command value generating unit is configured to provide a variation to the command value. | 12-05-2013 |
| 20150084567 | THE TRANSMISSION OF ENERGY - Apparatus for transmitting energy comprising an electrical machine arranged to convert between electrical and mechanical energy, and comprising a rotor ( | 03-26-2015 |
| 20160094162 | SYNCHRONIZATION MODULE FOR MOTOR SPEED CONTROL - A system includes a first control system configured to operate at a first clock speed, a second control system configured to provide an output to the first control system and configured to operate at a second clock speed different from the first clock speed, and a synchronization module operatively connecting the first control module to the second control module and configured to synchronize the first control system and the second control system such that the output of the second control system is timed to synchronize with the first clock speed. | 03-31-2016 |
