Patent application number | Description | Published |
20100013463 | Rotation sensor - A rotation detecting sensor (A) is fixed to a sensor fixing member (7), through which it is fitted to a wheel support bearing assembly for detecting the rotation of a rotatable ring of the wheel support bearing assembly. A sensor unit (B) is made up of a sensor element ( | 01-21-2010 |
20100014087 | Lubricant deterioration detector and bearing assembly equipped with such detector - A lubricant deterioration detecting device includes an arcuate optical fiber ( | 01-21-2010 |
20110185823 | Sensor-equipped bearing for wheel - A sensor equipped wheel support bearing assembly includes rolling elements ( | 08-04-2011 |
20110209562 | Sensor-equipped bearing for wheel - A wheel support bearing assembly includes rolling elements ( | 09-01-2011 |
20110214513 | Sensor-equipped bearing for wheel - A sensor equipped wheel support bearing assembly, in which the load imposed on the wheel support bearing assembly or a tire tread of a wheel tire can be accurately detected without being affected by the rolling elements, includes rolling elements interposed between plural opposed rolling surfaces defined in outer and inner members. One of the outer and inner members that serves as a stationary member is provided with one or more sensor unit. The sensor unit includes a strain generating member, having two or more contact fixing segments fixed to the stationary member, and a sensor for detecting such strain. The strain generating member in the sensor unit is arranged at a position departing from a line passing through a center of the rolling elements and extending in a direction defined by the rolling element contact angle. | 09-08-2011 |
20120114277 | SENSOR-EQUIPPED BEARING FOR WHEEL - A sensor equipped wheel support bearing assembly for supporting a vehicle wheel rotatably relative to a vehicle body, including an outer member; an inner member; a plurality of rows of rolling elements interposed between the outer and inner member; a strain sensor unit, made up of a strain generating member and a sensor element fitted to the strain generating member for detecting strains induced in the strain generating member, is fitted to one of the outer and inner members, that serves as a stationary member; and a covering member that covers at least the sensor element sealingly, provided on a mounting surface of the strain generating member of the strain sensor unit, on which the sensor element is mounted, the covering member being made of a resin which is over-molded or an elastomer bonded by vulcanization. | 05-10-2012 |
20120192636 | WHEEL BEARING WITH SENSOR - A sensor equipped wheel support bearing assembly, in which detection error is relieved to accurately estimate load is provided. A vehicle body fitting flange of an outer member of the bearing assembly has a front elevational shape of line symmetry or of point symmetry. A sensor unit including a strain generating member having two or more contact fixing segments to be fixed to the outer member and a strain sensor is provided at an arcuately sectioned portion lying from the flange to the outer member, or an outer peripheral surface portion of the outer member adjoining to the outboard side thereof, or a position crossing a line segment passing through a center of a rolling element or a position adjoining thereto. Alternatively, a plurality of sensor units are provided on the outer periphery of the outer member in a fashion spaced circumferentially equidistantly. | 08-02-2012 |
20130066517 | WHEEL BEARING WITH SENSOR - A sensor equipped wheel support bearing assembly having good assemblability with a compact structure and capable of accurately detecting load acting on a bearing of a vehicle wheel is provided. One of an outer member and an inner member that serves as a stationary member has a vehicle body fitting flange to be fitted to a knuckle. One or more load detecting sensor unit is provided on the stationary member and includes a strain generating member having two or more contact fixing segments fixed to the stationary member, and one or more sensors fitted to the strain generating member for detecting a strain occurring in the strain generating member. A circuit fixing stay is provided on a side face of the vehicle body fitting flange and a calculation processing circuit is fitted to this stay for calculating and processing an output signal of the sensor. | 03-14-2013 |
20130177269 | WHEEL BEARING WITH SENSOR - A sensor equipped wheel support bearing assembly, in which a continuous estimated load can be obtained depending on various inputted load conditions is provided. The sensor equipped wheel support bearing assembly includes a sensor unit provided in a stationary member, and a load estimating unit. The load estimating unit includes a load estimation calculating section for calculating the load using an estimation calculating equation, an evaluation value calculation section for calculating an evaluation value, which provides a parameter switching index in the estimation calculating equation, from sensor output signals, and a parameter switching section for switching the parameter based on a comparison result of the evaluation value with a threshold value. The load estimation calculating section includes a calculation correcting block for correcting the calculation result on both sides of the threshold value within a predetermined evaluation value region containing the threshold value. | 07-11-2013 |
20130223778 | WHEEL BEARING WITH SENSOR - Provided is a sensor-equipped wheel support bearing assembly for rotatably supporting a wheel, including a sensor unit associated with one of outer and inner members that serve as a stationary member. The sensor unit includes a strain generator member that has at least three fixation contact segments fixedly in contact with the stationary member and at least two strain sensors mounted on the strain generator member. A first load estimator is provided to estimate load acting on the bearing assembly, using an average value of output signals of the sensors. A second load estimator is provided to estimate load acting on the bearing assembly, using the average value and an amplitude value of output signals of the sensors. An estimated load provider is provided to sum these outputs from the load estimators in a ratio that depends on wheel rotation speed, for outputting an estimated load. | 08-29-2013 |
20140086517 | SENSOR-EQUIPPED WHEEL BEARING - A wheel support bearing assembly, including rolling elements interposed between raceway surfaces of an outer member and an inner member, one of the members serving as a stationary member, a plurality of sensor units, each including a strain generator member having at least two fixation contact segments and at least two sensors mounted on the strain generator member to sense strain in the strain generator member. The strain generator members are formed of a single band-shaped strain generator body continuously joining the plurality of sensor units. The at least two fixation contact segments are arranged at the same axial positions and spaced from each other along a circumferential direction of an outer diametric surface of the stationary member. Load on the wheel support bearing assembly is estimated by an estimator based on output signals of the at least two sensors. | 03-27-2014 |