摘要:
A method and apparatus for measuring strain on a surface of a substrate (140) utilizes a substrate surface coated with at least one coating layer (145). The coating layer (145) provides both luminescence and photoelasticity. The coating layer (145) is illuminated with excitation light (110), wherein longer wavelength light is emitted having a polarization dependent upon stress or strain in the coating. At least one characteristic of the emitted light is measured, and strain (if present) on the substrate (140) is determined from the measured characteristic.
摘要:
Suspension system (10) includes a compressible fluid (12), a suspension strut (14), a hydraulic cavity (16), a reservoir (18), and a volume modulator (20). The hydraulic cavity (16) is at least partially defined by the suspension strut (14) and is adapted to contain a portion of the compressible fluid (12). The hydraulic cavity (16) and the compressible fluid (12) supply a suspending spring force that biases a wheel (22) of a vehicle toward the road surface. The volume modulator (20) selectively pushes the compressible fluid (12) into the hydraulic cavity (16) and vents the compressible fluid (12) from the hydraulic cavity (16), thereby actively modulating the suspending spring force.
摘要:
A simulated steering feel system 10 for use in a vehicle, Laboratory Simulator, or entertainment device employs a servo disk motor 14. The servo disk motor 14 is utilized to import improved torque feedback to a steering wheel or input device.
摘要:
An adaptive cruise control system is provided for tracking a target vehicle (V T ) through a curve. The adaptive cruise control system tests whether the target vehicle (V T ) is traveling along the curve or whether the target vehicle (V T ) is changing lanes. The test includes monitoring a change in travel directions between the target vehicle and the adaptive cruise control vehicle (V A ). In one embodiment, the test monitors a change relative velocity versus azimuth angle.