Did You Know...
...that the first rickshaw was invented in 1869 by an American Baptist minister, the Rev. E. Jonathan Scobie, to transport his invalid wife around the streets of Yokohama?
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| Number | Title | Issue Date |
| 7362068 | Closing member control system A controller reduces an output of the drive motor when a window glass reaches a speed shift position, which is between a fully open position and a fully closed position of the window glass, in a closing operation of the window glass. The controller increases the out... | 04/22/2008 |
| 7360848 | Parallel relay circuit for hydraulic braking device In a parallel relay circuit, only one of a plurality of relays is turned on sequentially while turning the rest of the relays off. It is determined whether the motor is applied with voltage via a voltage detection resistor when each of the relays is turned on indivi... | 04/22/2008 |
| 7358696 | Method and apparatus for PWM drive During PWM control in which an actuator (9) is connected between the output terminals of a bridge circuit made up of switching elements (121, 122, 221, 222) and power is applied to the actuator (9) with signals G1U, G1L, G2U... | 04/15/2008 |
| 7355361 | Motor control apparatus A motor control apparatus can protect circuit elements in an appropriate manner while preventing an incorrect abnormality determination when a motor is in regeneration operation, etc. The apparatus includes a target current calculation section (51), a drive c... | 04/08/2008 |
| 7342369 | Differential ripple detection method and system Method and system of monitoring operations of an electric motor. The method and system being applicable to any number of motors of the type used to drive moveable members, including but not limited to motors used to drive automatic vehicle windows and motors used to... | 03/11/2008 |
| 7321216 | Motor control apparatus and vehicle steering apparatus using the same This invention provides a motor control apparatus and vehicle steering apparatus capable of determining whether the motor control CPU is normal or abnormal with an inexpensive structure. A monitor circuit 70 of an ECU 50 outputs a trigger signal trg ba... | 01/22/2008 |
| 7295894 | Method for initializing a power-activated adjusting device and device for implementing said initialization method To determine adjusting force comparison values for limiting the actuating force of a power-activated adjusting device by means of control technology, an initialization routine is predefined in a control unit, which allows the adjusting device to run through a specif... | 11/13/2007 |
| 7221116 | Motor control apparatus In an automatic transmission position control by a motor, it is determined whether the present instant belongs to a starting period, that is, the present instant is immediately after resetting of a control unit or application of power to it. If it is the starting pe... | 05/22/2007 |
| 7196486 | Apparatus for detecting obstacle to power regulated window An apparatus for detecting an obstacle to a power regulated window, which can detect existence of an obstacle by a method of differential current at low rotating speed of a motor and reduce a force of biting an obstacle and prevent from detecting an obstacle unexpec... | 03/27/2007 |
| 7161323 | Motor drive apparatus, electric actuator and electric power steering apparatus The disclosure concerns a a motor drive apparatus, an electric actuator and an electric power steering apparatus capable of continuous torque control up to the high drive speed and high torque area, in order to enable quick acceleration and deceleration. A controlle... | 01/09/2007 |
| 7147029 | Remote control operating system and support structure for a retractable covering for an architectural opening An improved retractable covering for an architectural opening includes an improved mounting bracket, an improved limit stop to prevent over-retraction and over-extension of the retractable covering, an improved battery pack mounting bracket for attaching a power sup... | 12/12/2006 |
| 7122982 | DC motor rotation information detecting device A rotation information detection device detects rotation information of a DC motor based on a surge component waveform superimposed on a voltage waveform between the terminals of the DC motor or a current waveform of the DC motor, a circuit is provided which supplie... | 10/17/2006 |
| 7084741 | Method for communication between a first station and a second station, and a controller and remote station using the communication method A method for communicating between a first station and a second station over a wire pair, in which the first station sends an alternating power signal over the wire pair, the alternating power signal comprising a plurality of communication symbols, the second statio... | 08/01/2006 |
| 7078873 | Motor controller A controller for a brushless motor that suppresses torque reduction resulting from the influence of motor inductance and suppresses the generation of invalid current. A phase advancing angle calculator calculates a delay angle of phases of phase currents with respec... | 07/18/2006 |
| 7057307 | Control method of sliding a vehicle door by a powered sliding device A control method wherein sliding of a sliding door by a powered sliding device is started after sounding an annunciation buzzer when an operating switch is operated, but when a remote control transmitter integrally having an ignition key is operated, the sliding of ... | 06/06/2006 |
| 7023152 | Driving control device for actuator A driving control device for an actuator comprises a driving device to drive an actuator having an electric motor (30) and a driving control device (50) to control the rotation of the electric motor (30) by controlling the driving device. The dr... | 04/04/2006 |
| 7023156 | Reversible motor Reversible motor including a stator having two windings (a–a′, b–b′), a start apparatus (c–c′) connected to one of the two windings (a–a′, b–b′) in series, switches (310,330,350) for providing power to the two windings selectively, wherein... | 04/04/2006 |
| 7002307 | Single phase motor unit, method of driving single phase motor and integrated circuit A single phase motor driving unit comprises a first driving transistor supplying a single phase coil with a driving electric current in a certain direction, a second driving transistor supplying the single phase coil with a driving electric current in the opposite d... | 02/21/2006 |
| 6992448 | Motor control apparatus A motor control apparatus capable of protecting a motor from overheat while changing smoothly a motor output characteristic as a function of time lapse and mitigating overhead involved in arithmetic operation includes a current command value generator for generating... | 01/31/2006 |
| 6952087 | Method for controlling an adjustment process of a part In the method of controlling a process for moving a part (20) by an electric motor (12) against an end stop, pinching events are detected by monitoring a motor operating variable, such as a motor rpm, and if pinching is detected the motor (12) i... | 10/04/2005 |
| 6940250 | Synchronous motor control device and method of correcting deviation in rotational position of synchronous motor In a synchronous motor control device that corrects a deviation in rotational position which is related to a rotational position detector for a synchronous motor on which vector-control is performed, the synchronous motor control device includes: a current instructi... | 09/06/2005 |
| 6938725 | Steering control apparatus In the control of an electric power steering apparatus, where so-called lead steering control is performed in which a steering wheel angle signal is output through a lead filter to correct reaction delay of a driver and a vehicle, a delay in control response occurs ... | 09/06/2005 |
| 6917169 | Driving circuit for rotating motor in forward and reverse direction A field effect transistor is provided between the ground and an H bridge circuit for rotating a motor in forward and reverse directions in a manner that the drain of the transistor is grounded and the gate thereof is coupled to a DC power source such as a battery se... | 07/12/2005 |
| 6906483 | Electric power steering apparatus An electric power steering removes external wiring connecting between an electric motor and a control unit, whereby the influence of radiation noise caused by a PWM operation can be reduced. In addition, the heat radiation and assemblability of the electric motor an... | 06/14/2005 |
| 6838845 | Circuit arrangement of an electromotor comprising two terminals An electromotor can be selectively actuated for operation in both rotational directions. In the condition of the electromotor not energized with current, respectively one rotational direction of the electromotor is blocked and one rotational direction remains movabl... | 01/04/2005 |
| 6838844 | Electric power steering apparatus An electric power steering apparatus includes a steering torque detector, a brushless motor PWM-driven with a three-phase alternating motor current, a target current setting section for setting a d-axis target current value and a q-axis target current value, motor c... | 01/04/2005 |
| 6756755 | Power window apparatus for vehicle A power window apparatus for a vehicle is comprised of an operation switch which includes a raising contact for outputting a window raising command when set at on-state and a lowering contact for outputting a window lowering command when set at on-state, and a contr... | 06/29/2004 |
| 6614200 | AC motors for driving vehicle closures An AC motor is utilized to drive a closure on a vehicle. The use of the AC motor provides valuable benefits with regard to cost and size. Further, a three-phase AC motor may be utilized, and the pulses in its power supply monitored to determine an obstruc... | 09/02/2003 |
| 6462506 | Electric golf car with low-speed regenerative braking A control system for an electric vehicle, such as a golf car, that includes a plurality of power MOSFETs. The vehicle includes a shunt wound motor including an armature coil and a field coil. One of the MOSFETs is connected in parallel across the armature... | 10/08/2002 |
| 6321031 | Control circuit for a dc motor A control circuit for a direct-current motor driven in a clocked manner, includes an electrolytic capacitor connected in parallel and free-wheeling diode. Spurious radiation is reduced, in that a choke is connected between the positive motor supply voltag... | 11/20/2001 |
| 6236176 | Method for electronic control and adjustment of the movement of electrically actuated units There is a method for controlling the movement of electrically operated assemblies, more particularly of window lifters, sliding roofs or the like in motor vehicles. The assembly has a setting device is connected to a drive device. At least in one partial... | 05/22/2001 |
| 5982118 | Motor with electronic distributing configuration First FET power transistors of first power amplifying parts and second FET power transistors of second power amplifying parts form current paths from a DC power source to three-phase windings. Three-phase first amplified current signals varying smoothly i... | 11/09/1999 |
| 5903113 | Power output apparatus and method of controlling the same A power output apparatus (20) of the present invention includes a clutch motor (30), an assist motor (40), and a controller (80) for controlling the clutch motor (30) and the assist motor (40). The clutch motor (30) includes an outer rotor (32) linked wit... | 05/11/1999 |
| 5898284 | Vehicle sliding door opening/closing control device A vehicle sliding door opening/closing control device includes a trouble detecting circuit for detecting a trouble in a control unit which is used for controlling operation of a motor to drive a vehicle sliding door in opening and closing direction, and s... | 04/27/1999 |
| 5872436 | System for monitoring and controlling the opening and closing of electrically driven devices A system for monitoring and controlling the opening and closing of an electrically driven device, such as a window or a sliding roof of an automobile, contains various mechanical components and is equipped with an electrical servo motor which can be contr... | 02/16/1999 |
| 5866962 | Rotor position detecting apparatus in switched reluctance motor A switched reluctance motor is provided with a rotor position detecting apparatus for detecting a rotor position wherein the apparatus comprises a rotor position-sensing mechanism removably mounted in a ventilator hole formed in a side wall of a motor hou... | 02/02/1999 |
| 5859509 | Adjustable speed control for children's ride-on vehicle An adjustable speed control for use on a children's ride-on vehicle, where the speed control includes a switch assembly interposed between the battery and the motor of the vehicle. The switch assembly is selectively operable to connect the battery to the ... | 01/12/1999 |
| 5663620 | Apparatus for controlling driving of power window system An apparatus for controlling driving of a power window system having a motor drive current detection device for detecting a current flowing through the motor when the door glass is raised by the motor, a current variation calculation device for calculatin... | 09/02/1997 |
| 5568025 | Abnormally detecting device for relay There is disclosed a device for detecting an abnormality in relays which is adapted such that if there is a current flow through a motor (M) when first and second transistors (Q1, Q2) are off resulting from an abnormality such as melting of first and seco... | 10/22/1996 |
| 5552683 | Method of controlling a reversible electric device A reversible electric device M is connected in an H bridge with a first side formed by first top and bottom switches and a second side formed by second top and bottom switches. The current Im flowing in the device from the first side to the second side is... | 09/03/1996 |
