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| Number | Title | Issue Date |
| 7902781 | Adjustment device for a motor vehicle seat An adjustment device for a motor vehicle seat that includes an electric motor, a gear connected to the electric motor, a mechanical adjustment unit connected to the gear and a control circuit, at least one sensor being associated with the control circuit for detecti... | 03/08/2011 |
| 7394217 | Dynamic hysteresis for autofan control A control signal value, such as a duty cycle value for a Pulse Width Modulated (PWM) generator output, for controlling and/or powering a fan may be calculated using an autofan function configured with dynamic hysteresis control (DHC). As part of the DHC, the PWM dut... | 07/01/2008 |
| 7359783 | Method of detecting obstructions caused by motor-driven power windows and similar devices using fuzzy logic algorithms The mobile element is a vehicle window pane, panel, movable seat or similar, conveniently guided, and driven by a DC electric motor with a permanent magnet, and the method comprises a step of detecting an entrapment or collision situation of the mobile element by me... | 04/15/2008 |
| 7342373 | Vehicle panel control system A control system for a vehicle includes a controller, an object sensor, and a motor. The motor receives power from a power source upon receiving a panel control signal. The motor moves a movable panel of the vehicle along a path between opened and closed positions w... | 03/11/2008 |
| 7287595 | Electric-hydraulic power unit The present invention is directed to an electric-hydraulic power unit. In one illustrative embodiment, the power unit comprises a body having a movable pressure barrier positioned therein, the movable pressure barrier defining first and second chambers therein, a co... | 10/30/2007 |
| 7276877 | Sensorless control method and apparatus for a motor drive system A method and apparatus provide a state observer control system 600 for a motor 106 that uses an extended Kalman filter 330 to predict initial rotor position and afterwards accurately predict rotor position and/or speed under variable types of lo... | 10/02/2007 |
| 7259530 | Power output apparatus, motor driving method and computer-readable recording medium having program recorded thereon for allowing computer to execute motor drive control A control CPU generates, in response to a signal STON from a start key, a signal SE at H level and outputs the generated signal to a relay to render system relays ON. Accordingly, a DC power supply is connected between respective neutral points of three-phase coils.... | 08/21/2007 |
| 7253581 | Data storage device, motor control device, and motor control method Embodiments of the invention provide a way to accurately detect the position of a spindle motor. In a spindle motor startup process according to one embodiment, a parameter setup section acquires from a parameter table a sense time value corresponding to an input vo... | 08/07/2007 |
| 7242974 | Method and device for controlling opening/closing of a sub-body in an automatically and manually folded portable wireless terminal Disclosed is an apparatus and method for determining incomplete opening/closing of a sub-body of a mobile terminal due to overload when a user automatically opens/closes the sub-body, by means of an open sensor and a close sensor, and for controlling operation of th... | 07/10/2007 |
| 7187150 | Automatic gate operator A barrier movement operator is having a position sensor in a telescoping barrier control arm is described. A controller, remote from the arm, senses the barrier position to identify limits of barrier travel and to control rate of travel of the barrier between limits... | 03/06/2007 |
| 7183733 | Opening and closing member control apparatus An opening and closing member control apparatus includes: an open-command receiving portion for receiving a first open command of a first open and close command inputting member and a second open command of a second open and close command inputting member, which per... | 02/27/2007 |
| 7170253 | Automotive door latch control by motor current monitoring Latch control methods and systems are disclosed, including a latch that receives power from a motor associated with a latch. A sensor can be provided for monitoring the current consumption of the motor. A microcontroller can control the latch and/or the motor, based... | 01/30/2007 |
| 7161320 | Control device There is provided a control device for driving a movable member such as a power window of a vehicle under control, in which the action of the movable member (including the manual operation) at an action velocity corresponding to the intention of the user is achieved... | 01/09/2007 |
| 7137450 | Electric-hydraulic power unit The present invention is directed to an electric-hydraulic power unit. In one illustrative embodiment, the power unit comprises a body having a movable pressure barrier positioned therein, the movable pressure barrier defining first and second chambers therein, a co... | 11/21/2006 |
| 7135834 | Modified field oriented control In accordance with certain embodiments, the present technique provides a reduced current field-oriented-control scheme. For example, the present technique provides a method of controlling an induction device in which a predetermined reduction factor is employed to r... | 11/14/2006 |
| 7122988 | Rotation drive device and rotation drive method This rotation driving apparatus includes a torque generating circuit 72 for generating a torque of a servo motor 30 with voltage supply from a power source 71 and a motor control circuit 73 for controlling rotation of the motor. In the to... | 10/17/2006 |
| 7059418 | Pressurized seal arrangement A pressurized sealing arrangement suited for providing a seal between a valve stem and a valve body is provided. The sealing arrangement includes a piston that is restrained in and statically sealed to the valve body and which surrounds the valve stem. Contained wit... | 06/13/2006 |
| 7057362 | Operation of an electrical machine An electrical machine is controlled without using a physical rotor position detector. When the demanded torque output is low, a control method causes the machine to operate on fewer than all the phases, thus increasing the phase current and improving the resolution ... | 06/06/2006 |
| 7038414 | Vehicle closure anti-pinch assembly having a non-contact sensor An anti-pitch assembly is used in combination with a closure device of a motor vehicle. The closure device includes a closure panel, i.e., a windowpane or door, and a motor for moving the closure panel between an open position and a closed position. In the closed po... | 05/02/2006 |
| 7038413 | Trapping detection device of opening/closing member A trapping detection device of an opening/closing member includes a motor, a motor speed detection device, a control device, a voltage detection device for detecting a drive voltage applied to the motor, an actual speed decision device for deciding the actual speed ... | 05/02/2006 |
| 7023163 | Fail-safe electric actuator using high voltage capacitors According to the present invention, a fail-safe circuit for controlling an actuator is provided with an input voltage which is rectified and converted to a DC voltage. The DC voltage is boosted to a high level, and high voltage storage capacitors are charged at this... | 04/04/2006 |
| 7023160 | Method for controlling doubly-fed machine A method for operating a doubly-fed machine by determining its rotational speed (nact), forming a rotational speed reference (nref), measuring network voltage and current, and calculating network active power (Pact) and reactive powe... | 04/04/2006 |
| 7023162 | Automatic gate operator A barrier movement operator is having a position sensor in a telescoping barrier control arm is described. A controller, remote from the arm, senses the barrier position to identify limits of barrier travel and to control rate of travel of the barrier between limits... | 04/04/2006 |
| 7009352 | Power-window jamming preventing apparatus A current sensing circuit includes; a shunt resistor, on which a motor current is flown; a reference resistor which has a resistance value that is n times the shunt resistor; and a current following circuit. The current following circuit includes: a following curren... | 03/07/2006 |
| 6998724 | Power generation system A system for generating an electrical power output from a subsea installation that includes at least one flowline, wherein the system includes a turbine that is operatively connected to the flowline, the turbine being rotatable by fluid flowing through the flowline,... | 02/14/2006 |
| 6977476 | Work table A work table is described, having a frame (2) which is adjustable especially with respect to its height and for the adjustment of which at least one electric motor (4) with a control device (7) is provided. In order to provide simple constructio... | 12/20/2005 |
| 6953084 | Actuator for well-head valve or other similar applications and system incorporating same An electrical actuator is particularly suited for driving a wellhead valve for regulating the flow of natural gas from a production well. The electrical actuator can be driven using the existing local power supply in wellhead valve systems, typically a solar panel a... | 10/11/2005 |
| 6954050 | Control method and control device of permanent-magnet type synchronous motor The object of the invention is to inhibit the axial displacement caused by the insufficiency of a control response angular frequency of a frequency arithmetic unit of a synchronous motor and realize high-precision torque control also in acceleration/deceleration. To... | 10/11/2005 |
| 6940246 | Power-window jamming preventing apparatus A power-window jamming preventing apparatus, includes a current sensing circuit, which senses a motor current flowing through a motor; a current limiting circuit, which increases and decreases the motor current based on a current-limitation control signal outputted ... | 09/06/2005 |
| 6936988 | Power-window jamming preventing apparatus A power-window jamming preventing apparatus, includes a current sensing circuit, which senses a motor current flowing through a motor for driving a window glass; a current limiting circuit, which increases and decreases the motor current based on a current-limitatio... | 08/30/2005 |
| 6876166 | Electric-motor drive An operational check of the safety unit or the safety circuit takes place within the delay time of the relay, assigned to each motor, caused by the pick-up delay or the release delay. Also, the control unit can be equipped such with at least one safety component and... | 04/05/2005 |
| 6856112 | Power window driving device A power window driving device includes a reference-current generator, generating a reference current having a level which corresponds to the size of a motor current flowing into a drive motor for driving a power window, a first current generator, generating a first ... | 02/15/2005 |
| 6792338 | System and method for actively limiting the power drawn from a power distribution bus A control system (10) actively limits the power drawn from a main power distribution bus (20) by one or more electric loads (30). The system (10) includes circuitry (14) for determining a maximum permissible current magnitude that ... | 09/14/2004 |
| 6720749 | Three-phase motor protector apparatus A three-phase motor protector uses two toroids to monitor all three phases of a three-phase motor. Current and phase loss are monitored directly in phases A and B while the phase C current level is determined by analysis of the phase A and B relationship. Current is... | 04/13/2004 |
| 6566832 | Method and apparatus for parking a read/write head during power interruptions by dynamic sequencing An apparatus for parking a read/write head during power interruptions and methods of operating the same result in a hard disk drive apparatus that reduces the time to steady state the operating hard disk drive. The apparatus for reducing the time to stead... | 05/20/2003 |
| 6534947 | Pump controller A method and apparatus for controlling an electric motor pump. The method includes the acts of providing an AC power signal having a positive half cycle and a negative half cycle, measuring the voltage of the AC power signal and generating a first two-sta... | 03/18/2003 |
| 6528961 | Movable barrier operator having force and position learning capability A movable barrier operator includes a wall control switch module having a learn switch thereon. The switch module is connectable to a control unit positioned in a head of a garage movable barrier operator. The head unit also contains an electric motor whi... | 03/04/2003 |
| 6404157 | Circuitry using back EMF of a motor to generate a system wake up signal A wakeup signal generating circuit is connected to an input of an electrically driven motor having a drive shaft that is mechanically coupled to a power sliding door or power lift gate of an automobile. The motor is normally responsive to a motor drive si... | 06/11/2002 |
| 6335602 | Squeeze protection system A squeeze protection system for movable parts of a vehicle, includes an operating switch for one or several parts to be moved, one or several actuators assigned to the operating switch, a control device for the actuator or the actuators which receives a s... | 01/01/2002 |
| 6252365 | Breaker/starter with auto-configurable trip unit A combination circuit breaker/motor starter includes a circuit breaker trip unit having a microprocessor and at least one removably connectable contactor or other functional module. The functional module is encoded with an identifier, such that the microp... | 06/26/2001 |
