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| Number | Title | Issue Date |
| 7436136 | Camera based anti-pinch system An anti-pinch control system is used to identify obstructions in a path of movement for a powered vehicle member, such as a vehicle window for example. A pinching area is identified for the vehicle window and at least one indicium or indicator is mounted to a vehicl... | 10/14/2008 |
| 7370540 | Rotation angle sensor, in particular for an electrical steering system of an industrial truck Rotation angle sensor, in particular for an electrical steering system of an industrial truck, in which two magnetic field sensitive sensor elements are arranged on orthogonal axes and a permanent magnet is attached to a shaft extending through the axis intersection... | 05/13/2008 |
| 7366600 | Distributed control system for forklift A distributed control system including a plurality of controllers mounted on a forklift, and a network providing connections between or among the plurality of controllers within the forklift. A first controller out of the plurality of controllers is configured to co... | 04/29/2008 |
| 7321212 | Restricted motion motor control with visual indication A visual indication for a motor controlled shaft, especially useful for retrofitting hand controlled printing presses. ... | 01/22/2008 |
| 7291998 | Electrical control safety system comprising photocells or equivalent sensors An electrical control safety system is provided comprising two photocells or equivalent sensors applied on a sliding gate, the two photocell systems being composed respectively of at least two transmitters and two receivers, and the control safety system being cycli... | 11/06/2007 |
| 7282879 | Bi-directional sensing edge for gate A bi-directional sensing edge includes a mounting member for securing the sensing edge to a leading member of a gate. An elongate outer sheath has at least first and second portions each respectively corresponding to first and second sides of the leading member. An ... | 10/16/2007 |
| 7268514 | Motor control for stopping a load and detecting mechanical brake slippage A method and apparatus for stopping an AC motor that is controlling a load while detecting mechanical brake slippage of a mechanical brake for holding the load against movement includes a controller for decreasing torque-producing current commands from the drive whi... | 09/11/2007 |
| 7268510 | Control apparatus for open/close member and method for controlling open/close member A controller writes position information (count value) of the window glass into an EEPROM based on halting of operation of a drive motor and identifies the current position of the window glass based on the position information of the window glass written in the EEPR... | 09/11/2007 |
| 7255203 | Clutch for coupling a car door of an elevator car with a landing door of an elevator system A clutch couples a car door of an elevator car with a landing door of an elevator system, wherein the car door is movable with respect to the elevator car by a first actuator. The clutch includes at least one coupling element and a second actuator. The coupling elem... | 08/14/2007 |
| 7249644 | Electric vehicle An electric vehicle is provided with a drum brake unit on a rear wheel rotated by drive force of an electric motor. A first set of fins, for cooling the electric motor and the drum brake unit, are provided between the electric motor and the drum brake unit. Specific... | 07/31/2007 |
| 7208897 | Motion control system for barrier drive A system for operating a barrier system such as a garage door, gate or fence. A DC motor is connected to and operates a barrier drive. A power amplifier is configured to receive power signals from a power supply and to output modulated DC signals to the DC motor. A ... | 04/24/2007 |
| 7184677 | Image forming apparatus for transferring respective toner colors on a transfer medium An image forming apparatus which repeats image create/transfer processing while rotating a photosensitive member and a transfer medium in a sub scanning direction and thereafter transferring the toner image onto the transfer medium, for a plurality of toner colors w... | 02/27/2007 |
| 7178491 | Control system and method for engine valve actuator A system and method for controlling a variable valve actuation system for an engine is provided. An engine valve is moved between a first position where the engine valve blocks a flow of fluid and a second position where the engine valve allows a flow of fluid. Flui... | 02/20/2007 |
| 7164642 | Optical disk reproducing apparatus and method for controlling spindle motor In a process of braking an spindle motor, a frequency of a read clock signal synchronized with an RF signal output from an RF amplifier is measured as a first frequency by a braking control circuit. A brake is then applied to the spindle motor for a predetermined ti... | 01/16/2007 |
| 7122986 | Motor operator system for a power switch A motor and a rotary potentiometer, or other position sensor, running on the motor shaft are mounted in a first enclosure with an output shaft for driving a power switch open or closed. A part of the system outside the first enclosure makes use of a motor position s... | 10/17/2006 |
| 7095196 | Vehicle drive force control apparatus A vehicle driving force control apparatus is configured to prevent co-rotation of the motor caused by rotation of a pair of wheels when a clutch connecting the wheels and the motor is released (disconnected). When the clutch is released, the motor is braked by short... | 08/22/2006 |
| 7034486 | Barrier operator controller with user adjustable force setpoint A control unit for a moveable barrier, such as a garage door, includes a microcontroller connected to a motor speed detector, motor current sensor or a sensor for determining forces exerted on or by the barrier. A user interface includes user actuatable switches for... | 04/25/2006 |
| 6998727 | Methods of operating a parallel hybrid vehicle having an internal combustion engine and a secondary power source The invention is directed toward methods for operating a parallel hybrid vehicle in a manner that responds to the operator's demand for power output, while maximizing engine efficiency and minimizing disruptions in vehicle drivability. According to principles of the... | 02/14/2006 |
| 6979976 | Driving apparatus for driving a brushless motor A driving system for driving a brushless motor effects a rotation control of a rotor by sequentially switching application of a current to magnetic coils disposed in a stator in response to a detection signal from a pole-position detector. The driving system compris... | 12/27/2005 |
| 6945752 | Azimuthal driving system for wind turbines Wind power installations generally have an active drive for wind direction tracking. The active drive rotates the machine housing of the wind power installation in such a way that the rotor blades of the rotor are oriented in the direction of the wind. Multiple azim... | 09/20/2005 |
| 6946749 | Automatic management of the health of an electrical storage device A system and method for maintaining the health of an electrical storage device measures revolutions per unit time of an engine shaft of an internal combustion engine. A status signal is provided indicating whether the engine shaft is disengaged or engaged with a rem... | 09/20/2005 |
| 6940415 | Reach type forklift truck A reach type forklift truck includes a rotation sensor interposed between a load wheel and a load wheel shaft on which the load wheel is provided. A signal line for transmitting a detected signal of the rotation sensor is inserted in a guide groove formed in the loa... | 09/06/2005 |
| 6936987 | Method for controlling an electric motor driving a body in translation The invention concerns a method for controlling an electric motor driving a body in translation between an initial position and a final position determined by a stop, by powering the motor with reduced voltage in the final position approach phase. The motor has a to... | 08/30/2005 |
| 6927502 | Three-phase asynchronous motor driven azimuthal drive for wind power installations Wind power installations generally have an active drive for wind direction tracking. The active drive rotates the machine housing of the wind power installation in such a way that the rotor blades of the rotor are oriented in the direction of the wind. That drive wh... | 08/09/2005 |
| 6917171 | Control device and method of stopping spindle motor of an optical disc system A control device and a method of stopping the spindle motor or an optical disc system. The control device primarily includes an optical disc control chip, a motor driving circuit and a spindle motor. The optical disc control chip generates and delivers a spindle mot... | 07/12/2005 |
| 6909200 | Methods of supplying energy to an energy bus in a hybrid electric vehicle, and apparatuses, media and signals for the same Methods, apparatuses, media and signals for supplying energy to an energy bus in communication with an energy generating device and with a regenerative braking system in a hybrid electric vehicle are disclosed. One such method includes controlling power supplied by ... | 06/21/2005 |
| 6825632 | Direct current machine with a controllable arrangement for limiting current An electronically commutated direct current machine comprising a rotor and a stator has a stator winding arrangement that can be supplied, via a full bridge circuit (78), with current from a direct current source (73, 74). A commutation arrangement ( | 11/30/2004 |
| 6756750 | Electric vehicle An electric vehicle driven by a pair of left and right electric motors is provided. The vehicle includes a controller for controlling the start of the vehicle. The controller performs such control as avoiding brake drag caused by the operation of the electric motors... | 06/29/2004 |
| 6653805 | Method and apparatus for spinning a multiphase motor for a disk drive system from an inactive state A method and apparatus are disclosed for controlling the operation of a multiphase motor, and particular to spinning the motor from an inactive state to an operable state. The method and apparatus include initially sensing an electrical characteristic of ... | 11/25/2003 |
| 6459224 | Zone control method in roller conveyor and zone controller In a roller conveyor system for carrying out zone control, a conveyed article can be stopped in an approximately constant position without varying the position where the article is stopped in a desired control zone even if the weight of the article varies... | 10/01/2002 |
| 6424798 | Device for controlling sensorless brushless-DC-motor A sensorless brushless-DC-motor mounted on an electric or hybrid vehicle is powered by an on-board battery through an inverter supplying a three-phase pulse width modulated voltage (PWM voltage). The inverter is controlled to generate the PWM voltage havi... | 07/23/2002 |
| 6369539 | Motor drive controller for vehicle The present invention provides a motor drive controller for a vehicle having an engine and a motor disposed therein as a vehicle-propulsion system, the motor having both driving and power-generating functions, comprising: an engine controller for controll... | 04/09/2002 |
| 6274992 | Braking method for a single-phase motor The specification discloses a braking method for a single-phase motor, which is applied to a single-phase DC brushless motor driven by a three-phase motor driving IC. The invention uses a control unit to compute the rotational speed of the single-phase mo... | 08/14/2001 |
| 6178286 | Adaptive tape drive control in a video recorder A video recorder capstan drive motor is controlled for slow-motion, freeze-frame and similar operations by setting a rate of acceleration or braking. A speed parameter is measured during an initial acceleration phase and is compared to a predetermined des... | 01/23/2001 |
| 6150780 | AC motorized wheel control system Torque is distributed by calculating first and second torque commands using a requested torque and a ratio of speeds of first and second wheels and limiting them in accordance with respective torque command approved ranges and approved change rates; conve... | 11/21/2000 |
| 6108592 | Voice-controlled motorized wheelchair with sensors and displays A motorized wheel-chair is equipped with one or more sensors for detecting obstacles. The detection method may be either radar or sonar (or both). An on-board computer processes these echoes and presents a visual or auditory display. With the benefit of t... | 08/22/2000 |
| 5962997 | Electric motor-driven wheel brake for vehicles The wheel brakes of each vehicle axle or side or diagonal are supplied with current by a separate voltage source. To reduce the load on the vehicle's electrical system, the wheel brakes of a front axle are supplied with current first, and then the wheel b... | 10/05/1999 |
| 5941359 | Positioning apparatus A control object can be stopped at a target position with high precision by decelerating braking performed by decreasing a control speed of a speed controller and by decelerating braking performed by braking operation of a brake device. A positioning appa... | 08/24/1999 |
| 5933573 | Method of controlling an electric motor and apparatus for carrying out the method An electric motor (12) is supplied with current (imot) via a semiconductor switch (14). During operation, the semiconductor switch (14) is driven by a Pulse Width Modulation (PWM) unit 15 using a pulse-formed signal (32). For regulation of the ... | 08/03/1999 |
| 5909097 | Method of stopping an electric motor-driven balancing machine main shaft A method of stopping an electric motor-driven balancing machine main shaft after an unbalance measuring run in a specific rotary angle stoppage position corresponding to a desired balancing rotary angle position provides that in the course of retardation ... | 06/01/1999 |
