Class / Patent application number | Description | Number of patent applications / Date published |
318045000 | Mechanically coupled in fixed ratio of movement | 8 |
20100171448 | MOTOR CONTROLLING APPARATUS - A motor controlling apparatus having a controller for controlling a plurality of inverters correspondingly provided to each of a plurality of alternating-current motors is reduced in size, mass, and cost by effectively grouping operations performed by each calculation unit included in the controller. This controller for controlling the inverters includes: a first common calculation unit and a second common calculation unit that calculate and output control signals that are common to each of the inverters; individual calculation units that individually calculate and output a control signal related to each of the inverters; and a common logic calculation unit | 07-08-2010 |
20140049194 | DRIVE ARRANGEMENT - The invention relates to a drive arrangement for the motor-operated adjustment of an adjusting element in a motor vehicle, wherein the drive arrangement comprises two electrical drives having in each case a drive motor and a control device, wherein in the assembled state the drives act in the same manner on the adjusting element and are embodied in an essentially identical manner apart from deviations that are a result of tolerances, wherein the control device influences the two drive motors by a pulse width modulation voltage (“PWM” voltage). It is proposed that the control device influences the two drive motors by PWM voltages having PWM switching frequencies that vary continuously during the adjustment process in such a manner that the PWM switching frequencies that are allocated to the two drive motors are different from each other at least for periods of time. | 02-20-2014 |
318046000 | Motors having unlike operating characteristics | 4 |
20120001572 | DEVICE FOR QUICKLY GENERATING A TORQUE ON AN EXTENDED DYNAMIC RANGE WITH LOW INERTIA - The invention relates to a device for generating a torque on an output member in response to a torque setpoint, including a first motor unit including at least one motor of a first power, or small motor, having a shaft to which the output member is connected, a second motor unit including at least one motor of a second power higher than the first power, or large motor, having a shaft rotationally connected to the output member via viscous coupling means, and servo-control means programmed, in response to a torque setpoint (M | 01-05-2012 |
20140117886 | POWER OUTPUT SYSTEM AND CONTROL METHOD THEREOF - A power output system includes a first rotary power source, a second rotary power source and a clutch. The first rotary power source has a first maximum torque and a first maximum rotation speed. The second rotary power source has a second maximum torque and a second maximum rotation speed. The second maximum torque is greater than the first maximum torque, and the second maximum rotation speed is lower than the first maximum rotation speed. An output shaft of the second rotary power source is coaxial with an output shaft of the first rotary power source. The clutch is located between the first rotary power source and the second rotary power source. The clutch separates or couples the output shaft of the first rotary power source from or to the output shaft of the second rotary power source. | 05-01-2014 |
20150303837 | CONTROLLING MAGNETIC FLUX IN AN AUTOMOTIVE ELECTRIC MACHINE - A method of compensating for magnetic flux resulting from variance from a first electric machine to a second electric machine. A magnetic flux change for the first machine is calculated as a function of a flux difference between the first machine and the second machine. Operation of the first machine is controlled using the magnetic flux change. | 10-22-2015 |
20160149522 | MOTOR SYSTEM WITH A CHANGEABLE POWER CAPACITY AND CONTROL METHOD THEREOF - A motor system includes at least two motors respectively having an output power and a rotary shaft selectively simultaneously operated with each other. A control unit is electrically connected to the at least two motors for receiving a controlling signal. The control unit controls the at least two motors according to the received controlling signal for adjusting an output power approaching to a power requirement of the electric actuator. | 05-26-2016 |
318048000 | Mechanically coupled in torque opposition | 2 |
20090102402 | CONTROLLED ELECTRIC MOTOR ARRANGEMENT FOR A TENSION MECHANISM - A field-oriented control method for an electric drive comprising a plurality of electric motors, for implementing a tension mechanism, especially for load cable and/or gearing means, using measurements of a polyphase motor actual current. The measured values are transformed into a direct current component and a quadrature current component, based upon a magnetic rotor field or flux angle, in a rotor flux-based d,q coordinate system. The quadrature and direct current components from the actual current are subjected to a comparison with predetermined quadrature and direct current components of a current command value. The method has the following steps:
| 04-23-2009 |
20090115356 | POWER TRANSMISSION DEVICE, AND DISPLAY DEVICE AND DISPLAY PANEL PEDESTAL THAT HAVE THE POWER TRANSMISSION DEVICE - A power transmission device capable of adjusting a torque to be applied to an output shaft easily and removing a backlash between gears exactly, and a display device and a display panel pedestal that have the power transmission device. A power transmission device | 05-07-2009 |