Patent application number | Description | Published |
20100059944 | Counter-Rotating Motors with Linear Output - An actuator includes a first rotary motor, a second rotary motor, and a transmission coupled to the first and second rotary motors. The transmission converts rotation of the first rotary motor in a first direction and simultaneous rotation of the second rotary motor in a second direction to linear motion of an output shaft in a single direction. The actuator is usable in an active automobile suspension. | 03-11-2010 |
20110193300 | Counter-Rotating Motors with Linear Output - An actuator includes a first rotary motor, a second rotary motor, and a transmission coupled to the first and second rotary motors. The transmission converts rotation of the first rotary motor in a first direction and simultaneous rotation of the second rotary motor in a second direction to linear motion of an output shaft in a single direction. The actuator is usable in an active automobile suspension. | 08-11-2011 |
20130249464 | Actuator Assembly with Preloaded Ball Screws - An actuator assembly includes a first motor having a first transmission mechanism, a second motor having a second transmission mechanism, and a drive shaft operatively coupled to the first transmission mechanism of the first motor and the second transmission mechanism of the second motor. The actuator assembly includes a torque application system disposed in operative communication with the first motor and the second motor, the torque application system configured to direct an application of a translation torque and a preload torque between the first motor and the first transmission mechanism and between the second motor and the second transmission mechanism. | 09-26-2013 |
Patent application number | Description | Published |
20090121444 | VEHICLE SUSPENSION - There is provided a vehicle suspension. More specifically, in one or more embodiments, there is provided an apparatus including an actuator system having a combination of actuators including a linear electromagnetic actuator and a rotary electromagnetic actuator, wherein the actuator system provides force between the sprung mass and an unsprung mass of a vehicle. | 05-14-2009 |
20090243402 | POSITION MEASUREMENT USING MAGNETIC FIELDS - A position sensing system for positioning a linear motor that includes a stator and an armature having magnets, the armature moving relative to the stator along a path. A sensor determines a position of the armature based on measurements of a magnetic field generated by the magnets of the armature. | 10-01-2009 |
20120181757 | Counter-Rotating Motors with Linear Output - An active suspension for a vehicle includes an actuator which incorporates a first rotary motor, a second rotary motor, and a transmission coupled to the first and second rotary motors to convert rotary motion to linear motion. A compensation force is determined to compensate for the rotary inertia of the system. A force feedback loop can be employed to reduce the error between the output force of the actuator and a force command supplied by an active suspension system controller. | 07-19-2012 |
20140263911 | Rotary Actuator Driven Vibration Isolation - An active vibration isolation system for isolating a suspended platform from vibration input to the vibration isolation system base includes an exoskeleton which supports the suspended platform relative to the base. The exoskeleton includes first and second scissors mechanisms with main links of unequal length. The main links pass through a parallel condition as the suspended platform moves over its intended range of travel relative to the base. The vibration isolation system may include a rotary actuator and a drive mechanism separate from the exoskeleton for providing force output from the rotary actuator to the suspended platform. The rotary actuator may include inner and outer rotors which rotate relative to each other and may be free to rotate relative to the exoskeleton. The rotary actuator may be free to translate relative to the vibration isolation system base and the suspended platform. | 09-18-2014 |
20140263932 | Rotary Actuator Driven Vibration Isolation - An active vibration isolation system for isolating a suspended platform from vibration input to the vibration isolation system base includes an exoskeleton, a rotary actuator, and a drive mechanism separate from the exoskeleton for providing force output from the rotary actuator to the suspended plant. The rotary actuator may include inner and outer rotors which rotate relative to each other. The rotary actuator may be free to translate relative to the vibration isolation system base and the suspended platform, and both the inner and outer rotors may be free to rotate relative to the exoskeleton. | 09-18-2014 |