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| Number | Title | Issue Date |
| 7677114 | Torque sensor for electric power steering system A torque sensor, which is for an electric power steering system that has an output shaft for rotating in response to rotation of an input shaft, may include a first rotor for rotating with the input shaft, a second rotor for rotating with the output shaft, a first p... | 03/16/2010 |
| 7433758 | Control apparatus of robot A robot control apparatus capable of largely reducing a calculation amount to be capable of lowering a load of a CPU is provided. A control apparatus of a robot includes: a plurality of shafts interfering with each other; each of the shafts including a motor (8 | 10/07/2008 |
| 7428846 | Shaft encoder with anti-backlash gears An encoder shaft assembly includes a drive shaft having a drive gear, and an array of encoder units each having an encoder shaft and anti-backlash gears which engage the drive gear. ... | 09/30/2008 |
| 7426877 | Device for determining the actual reversal of the direction of rotation of a reversing rotational drive A device for determining the actual reversal of the direction of rotation of a rotational drive continuing to operate after previous switching of the direction of rotation, in particular for window lifting systems or sliding roof drives in a motor vehicle, has a sen... | 09/23/2008 |
| 7415363 | High resolution torque measurement on a rotating shaft with movement compensation An apparatus for determining the torque imposed on a rotatable shaft. The shaft has at least four paired probes, paired horizontal probes and paired vertical probes. The horizontal probes are positioned 90 degrees apart from the vertical probes. If the shaft moves h... | 08/19/2008 |
| 7398701 | Device and method for determining torques on a turbine shaft A device is described for determining the torque which is applied to a turbine shaft (10), the determination device having at least one system for contactless measurement of the integral torsion of the turbine shaft (10) and a unit for contactless meas... | 07/15/2008 |
| 7363826 | Rotating member-supporting structure and rotation detecting device having the same Three elastic member-holding units are provided along the circumference of a cylindrical guide unit, which is a supporting unit of a first code wheel to hold a ring-shaped metallic elastic member, which is made of a band-like body of stainless steel or the like, and... | 04/29/2008 |
| 7364051 | Remote actuator for ball injector An electrical motor rotatably drives a motor shaft, and a helical rib radially extends from the shaft. The helical rib supports a number of balls, and forms a channel to accommodate the balls. The balls are dropped from the helical rib when the balls reach the botto... | 04/29/2008 |
| 7357041 | Rotation detection device Torque ripple of a motor due to a rotation detection device is reduced. A periodicity gain multiplier 51 multiplies the rotation angle θ of a detection target by a ripple periodic number m per rotation of the detection target. An adder 53 adds a phase... | 04/15/2008 |
| 7312609 | GMR sensor element and its use A GMR sensor element is proposed, having a rotationally symmetrical positioning of especially eight GMR resistor elements which are connected to each other to form two Wheatstone's full bridges. This GMR sensor element is especially suitable for use in an angle sens... | 12/25/2007 |
| 7301333 | Angle position detection apparatus An angle position detection apparatus according to the present invention includes: a unipolar resolver and a multipolar resolver installed so that reluctance is changed in synchronization with the revolution of a direct motor drive; and a select switch is used to sw... | 11/27/2007 |
| 7293476 | Power sensor module for engine transmission and driveline applications A power sensor module suitable for automotive and other high volume applications is disclosed. The power sensor module combines a speed sensing and torque sensing operation into a single unit. A power measurement can be derived from torque and speed. Combining torqu... | 11/13/2007 |
| 7267016 | Sensitized ring for use with a sensor A sensitizing ring for sensors having a reduced manufacturing cost and an improved profile shape manufacture with a diameter of 120 mm or less. The sensitizing ring of the present invention is used to measure the rate of rotation and position of a rotating element. ... | 09/11/2007 |
| 7252018 | Drive for closure elements A drive for closure elements is provided, in particular in the area of garage and industrial doors, but also for example in the form of roller shutters, with a reference value generator arranged in the motor or in the gearing of the drive for determining the actual ... | 08/07/2007 |
| 7246531 | Torque sensor for detecting a shaft torque A first shaft and a second shaft are connected coaxially. A torsion bar converts a torque applied between two shafts into a torsion displacement. A multipolar magnet is fixed to the first shaft. One set of magnetic yokes is fixed to the second shaft and disposed in ... | 07/24/2007 |
| 7237444 | Torque cell for determining a torque load on a rotary member A torque detection system is provided for detecting torque applied to a rotary shaft. A spring element is connected to an input and output shaft. As torque is applied to the shaft system, the input shaft is rotationally offset from the output shaft and a sensing sys... | 07/03/2007 |
| 7201070 | Rotational angle detecting apparatus and torque detecting apparatus A rotational angle detecting apparatus, in which first targets and second targets, the number thereof is coprime with each other, are provided at the rotors rotating coaxially with each other. Rotational angle of the rotor is detected based on the detection signals ... | 04/10/2007 |
| 7194921 | Speed-sensing device and method for assembling the same A method for assembling a speed-sensing device for monitoring an angular velocity of a rotatable shaft, comprises the steps of: providing a hollow housing having a speed sensor hole, installing a stopper plug into the speed sensor hole so that a stein portion of the... | 03/27/2007 |
| 7181983 | Torque sensor malfunction diagnostic system A system to diagnose a malfunction of a torque sensor in a vehicle steering system includes a voltage difference generator that outputs a voltage difference by comparing a voltage of a contact part between a temperature correcting coil and a torque detecting coil in... | 02/27/2007 |
| 7134329 | Torque detecting apparatus The present invention provides a torque detecting apparatus that includes a drive plate that is elastically deformable in response to an applied torque, strain gauges, and a torque detecting circuit, and the torque detecting apparatus can accurately detect torque tr... | 11/14/2006 |
| 7117755 | Torque sensor for vehicle A torque sensor including a first step formed on an inner peripheral surface of a sensor housing, a second step formed on an outer peripheral surface of a detection coil assembly, the first and second steps axially supporting each other, and a groove formed on the o... | 10/10/2006 |
| 7021161 | Gear bearing for a steering wheel position sensor An improved conventional steering wheel position sensor including a housing, a main gear, an auxiliary gear enmeshed with the main gear and a ring shield at the auxiliary gear. A ring shield wall of the ring shield has a low rise portion adjacent the main gear and a... | 04/04/2006 |
| 7010990 | Force detecting apparatus In a detecting apparatus, a resolver generates signals whose magnitudes vary periodically in accordance with a positional change of a fixed element side rotating shaft, which is a base for rotation of a rotator and whose position is offset when force of a component ... | 03/14/2006 |
| 6978685 | Steering state detecting apparatus In a detecting apparatus for detecting a steering state at a steering member (1) by respectively providing targets (34 and 35) in the shape of a spur gear having teeth portions (34a and 35a) to an input shaft (32 | 12/27/2005 |
| 6973991 | Electric power steering apparatus A driving control unit (21b) of a controller (21) determines which of an input shaft (32) and an output shaft (33) in a steering shaft (3) is dynamically superior and when the output shaft (33) is dynamically superior... | 12/13/2005 |
| 6925401 | Method and apparatus for correcting resolver output A resolver output correction device receives sine output signal and cosine output signal from a resolver. Each of the sine output signal and the cosine output signal has an offset error and a gain differential error due to a secular variation. The correction device ... | 08/02/2005 |
| 6912921 | Torque detecting device A torque detecting device includes an elastic member disposed between an input shaft and an output shaft of a torque transmitting apparatus, first and second resolvers detecting rotational angles of the elastic member at sides of the input shaft and the output shaft... | 07/05/2005 |
| 6851324 | Non-contacting compliant torque sensor A variable reluctance rotational displacement sensor with: an annular sleeve; a coil coaxially aligned within the sleeve; a first ring in magnetic communication with the sleeve, coaxially aligned and configured to rotate relative to the sleeve. The first ring includ... | 02/08/2005 |
| 6851325 | DSP based algorithm for non-contacting torque sensor A method of detecting a sensed parameter for a motor control system comprising: receiving a sensor signal, the sensor signal exhibiting a frequency responsive to an inductance of a non-contacting variable reluctance rotational displacement sensor, wherein the induct... | 02/08/2005 |
| 6782766 | Apparatus for detecting torque, axial position and axial alignment of a rotating shaft The present invention is an apparatus for obtaining an indication of torque, axial alignment and axial location for a shaft rotating about an axis of rotation. A first set of detectable elements are operably connected to the shaft and positioned parallel to the axis... | 08/31/2004 |
| 6711970 | Device for measuring torque with high accuracy This invention is to provide an improved device for measuring torque with high accuracy and a simple structure. The device is so constructed that one end of a torsion bar (which is twisted depending on an actual steering operation) is combined with one end of an inp... | 03/30/2004 |
| 6651519 | Device for measuring torque in a drive assembly A device for measuring torque in a drive assembly includes a torque-loaded torsion element (9), such as a shaft, and a reference element (21) surrounding the torsion element (9). The reference element is correspondingly tubular in shape. A first tube end ... | 11/25/2003 |
| 6578437 | Sensor array for detecting rotation angle and/or torque A sensor arrangement for detecting a rotational angle and/or a torque of rotating mechanical components has a torsion bar provided between two angle encoders, and rotatable bodies which are coupled to the angle encoders so that from a difference in rotati... | 06/17/2003 |
| 6481296 | Sensor for detecting relative rotation between shafts A rotation sensor (10) provided with a first rotor (11) fixed to a predetermined position in the axial direction of the shaft, a second rotor (12) fixed to the shaft (5) adjoining the first rotor, and a magnetic material core (13) having a resonance coil ... | 11/19/2002 |
| 6363797 | Rotational angle detecting device torque detecting device and steering apparatus A rotational angle detecting device includes a rotating member and a target which is provided on the rotating member. The target has a variable inclining portion to be detected is continuously changed as the rotating member rotates, and at least one detec... | 04/02/2002 |
| 6298736 | Device for measuring a torque between two coaxial shafts A device for measuring a torque between first and second coaxial shafts comprises a ring secured to one of the shafts and axially split so as to receive an axial key on the other shaft. The ring portions which are adjacent the key are operative to make th... | 10/09/2001 |
| 6097299 | Position detecting apparatus for motor actuator For a position detector of a motor actuator, two types of flanges are provided. Each flange has a movable contact, on which fixed sliding contacts slide to detect a predetermined rotational position of a motor when the flange is driven by the motor. Eithe... | 08/01/2000 |
| 5969269 | Flexible coupling with torque measuring and detecting device A flexible coupling and torque monitoring device includes a hub having two sets of flexible spokes extending radially outwardly from a common hub to respective separate rims; the rims are each provided with fingers attached at one end to one rim and with ... | 10/19/1999 |
| 5767420 | Torque detecting device A torque detecting device includes a first rotary member connected to an input shaft and a second rotary member connected to an output shaft and arranged coaxially with the first rotary member. An elastic member is sandwiched between the first rotary memb... | 06/16/1998 |
| 5675095 | Rotational torque sensor A torque measuring apparatus that uses proximity devices coupled to reference rings on input and output shafts that have periodically undulating circumferential boundaries. The regular changes in the proximity of the circumferential surfaces to their prox... | 10/07/1997 |
