Aisin Seiki Kabushiki Kaisha

Lord Corporation

Ford Global Technolgoies, LLC

Welch Allyn, Inc.

Imra America, Inc.

Aisin Seiki Company, Ltd.

Lord Corportion

Donald L Margolis

Yoshiyuki Yasui

Todd Allen Brown

Mark R Jolly

Davor Hrovat

Eric Hongtei Tseng

Vladimir V Kokotovic

Russ Lee Norton

Mark A Norris

Edward J Krasnicki

Douglas Edward Ivers

Askari Badre-Alam

Peter J Jones

Michael C Heath

Douglas A Hodgson

Charles M Nobles

Jonathan M Owens

Warren R Schroeder

Masao Ando

Alan Yasuji Arai

Cornelis Jen Belltawn

Andrew D Meyers

No numbers found in figures. An example vehicular shock absorbing apparatus includes a shock absorber, a hydraulic mount operatively coupled with the shock absorber, a first decoupler movably disposed in a first portion of the hydraulic mount, and a second decoupler movably disposed in a second portion of the hydraulic mount.

Vehicular vibration isolation system and apparatus

A pumping system is provided. The pumping system includes an output conduit, a first sensor, a second second sensor, a feedforward active controller, and a fluid flow normalizer (FFN). The output conduit is associated with an output of a positive displacement pump. The first sensor is configured to measure a fluid flow characteristic (FFC) within the output conduit. The second sensor is configured to measure a phase of the positive displacement pump. The feedforward active controller is configured to receive information related to the FFC, receive information related to the phase of the positive displacement pump, and determine an FFC variability value. The first fluid flow normalizer (FFN) is configured to at least one of add fluid to the output of the positive displacement pump and remove fluid from the output of the positive displacement pump in response to a signal from the feedforward active controller.

Fluid flow normalizer

A hydraulic mount for a vehicle shock absorber includes a first housing portion, a second housing portion, an orifice plate and a diaphragm connected together to define a first chamber and a second chamber in the hydraulic mount. A first resilient member disposed on the orifice plate defines a first sub-chamber in the first chamber and a second resilient member disposed on the orifice plate defines a second sub-chamber in the second chamber.

Vehicular vibration isolation apparatus

An improved estimator is provided for road/tire friction. The friction estimator provides near-real-time friction estimation, even while the car is accelerating, braking or turning. It is desirable to have an instantaneous and continuous estimate of the road/tire friction, but an estimate that occurs over several wheel rotations is more realistic. The estimate relies on easily measured signals such as yaw rate, lateral acceleration, wheel speed, etc. The estimate can be used to give the driver or a closed-loop controller an advanced warning when the tire force limit is being approached.

Near real-time friction estimation for pre-emptive vehicle control

A vibration-damped machine and method including beam being capable of gross movements in space relative to a stationary frame, means including a motor for causing the beam's gross movements; the gross movements tending to induce vibration into the beam, sensors for providing a signal representative of the induced beam vibration, an linear-acting inertial actuator mounted to the beam, and control means for receiving the signal and generating an output signal to actively drive the linear-acting inertial actuator at the appropriate phase, frequency and magnitude to damp induced beam vibrations. Embodiments of the vibration-damped machine are illustrated for a gantry robot, a horizontal machining center, an adhesive dispenser and a pivoting robot. The linear-acting inertial actuator is preferably controlled according to an inertial damping control method where the actuator is forced to behave as a damper attached to ground.

Vibration-damped machine and control method therefor

A non-active regenerative system (20) which regenerates energy by taking energy from relative motion of members (22) and (24) and using it later to accomplish overall improved performance and eliminates the need for an active source to provide assisting forces. The non-active regenerative system (20) includes an energy transformer element (26) interconnecting a first member (22) and second member (24) which converts relative motion to an energy in storable form, and an energy management element (30) which channels the flow of energy to and from an energy storage element (32) to produce assisting forces. The energy management element (30)is commanded by a controller (36) which is responsive sensors (34a, 34b, 34c, and 34d) which provide signals indicative of the system condition. Power is supplied to the energy management (30), sensors (34a, 34b, 34c, and 34d), and controller (36), only if required, by power source (40). However, no active power source is needed to drive the transformer element (26). Embodiments of the non-active regenerative system (20) include non-active actuators and controllable mounts. Further, pulse width modulation of the energy management element (30) may be provided to reduce the system losses associated with tracking a desired force as dictated by a control algorithm.

Regenerative system including an energy transformer which requires no

An improved automatic lateral guidance control system for guiding moving vehicles is provided which includes a sensing subsystem for viewing an area in front of a vehicle, a plurality of energy radiating or energy reflective devices disposed adjacent a predetermined length of road, an apparatus for translating the radiated or reflected information from the viewed area into coordinate data representing an approximation of the predetermined path along the road, and a vehicle controller for determining the vehicle's heading with respect to the approximated path and providing an output control signal to correct the vehicle's heading with respect to the approximated path. The system uses past and present position data to calculate a predetermined path for the vehicle. Gain factors and comfort factors are determined to maximize comfort to passengers of the system and to optimize performance of the system.

Automatic lateral guidance control system

In a preferred embodiment, the present invention relates to automatic vehicle control systems for controlling individual wheel torque and steering angle. Control is provided in response to desired forward velocity, desired steering angle, actual angular velocities of each controlled wheel, actual vehicle yaw rate, and actual vehicle lateral acceleration. A command processor uses desired forward speed, desired steering angle, and lateral acceleration to compute command angular velocities for each drive wheel and the commanded vehicle yaw rate. Further, the command signal processor monitors a tire adhesion limit. If this limit is exceeded, command signal will be reduced.

Integrated torque and steering control system

An improved automatic lateral guidance control system for guiding moving vehicles is provided which includes a sensing subsystem for viewing an area in front of a vehicle, a plurality of energy radiating or energy reflective devices disposed adjacent a predetermined length of road, an apparatus for translating the radiated or reflected information from the viewed area into coordinate data representing an approximation of the predetermined path along the road, and a vehicle controller for determining the vehicle's heading with respect to the approximated path and providing an output control signal to correct the vehicle's heading with respect to the approximated path.

A fluid mount with the capability of actively controlling the amount of vibrational energy transmitted thereacross. An actuator is provided in series or in parallel with the inertia track passageway of a double pumper isolation mount to permit the dynamic stiffness of the mount to be varied so as to control the amount of vibrational energy transmitted in a desired manner. A control system for permitting frequency-shaped force feedback control of the device is also disclosed. Utilization of the device as a tuned absorber is also described.

Fluid mount with active vibration control

The compliance of human tissue is determined by impinging a target area with acoustical energy over a range of frequencies. The target is dynamically sealed within a chamber and the pressure response produced in the chamber over the frequency range is measured. The characteristic of the frequency response is related directly to the compliance of the target.

Single chamber acoustical tonometer

An acoustical tonometer having an ocular chamber in which a target eye is positionable, a drive chamber containing an acoustical generator and an inertia tube connecting the two chambers. Sound waves produced in the drive chamber are used to excite the target eye. The behavior of the eye on the resonant response of the system is used to determine the health of the eye.

Double chamber acoustical tonometer

An air spring assembly which includes a main air chamber and an interconnected auxiliary air chamber in which there is disposed a piston movable endwise thereof upon actuation of a reversible electric motor to increase or to decrease the volume of the auxiliary air chamber that is open to the main air chamber, thereby adjusting the effective volume of the main air chamber and thus its spring constant.

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El Macero, CA, United States of America

Donald L Margolis