Abstract:
An energy-absorbing hood assembly for a vehicle includes an upper layer having a plurality of polyhedral protuberances extending outward therefrom, and preferably a lower layer. The protuberances are disposed between the upper and lower layers, and preferably arranged in longitudinal and transverse rows. The polyhedral protuberances are adapted to absorb and attenuate crush loads imparted to the hood assembly and resultant forces imparted to an object resulting from an impact between the object and the hood assembly. The polyhedral protuberances define various structural and material characteristics along different regions of the hood assembly that are selectively configured to provide different levels of absorption and attenuation of the crush loads and resultant forces. The lower layer is preferably configured to controllably fail at a first predetermined threshold crush load and the polyhedral protuberances are each configured to controllably deform at a second predetermined threshold crush load.
Abstract:
A thruster system is provided for a vehicle that can be used to reduce the roll propensity of a motor vehicle. The system utilizes a control system and multiple sets of thrusters which are strategically placed upon the vehicle. The control system is provided for detecting a potential roll condition and activates selected ones of the thrusters to produce a necessary thrust force for counteracting roll forces. The thrusters are connected to an on-board pressurized gas source that generates the anti-roll thrust force.
Abstract:
A synchronized rear vision system for a vehicle includes a pair of external side rearview mirrors for attachment to the vehicle and an interior rearview mirror for attachment to the vehicle. The synchronized rear vision system also includes a system master controller for detecting an instantaneous position of one of the side rearview mirrors and calculating position output signals for at least another one of the side rearview mirrors and the interior rearview mirror to automatically position at least the another one of the side rearview mirrors and the interior rearview mirror based on the instantaneous position. The synchronized rear vision system may include a controller to readjust the position of the rearview mirrors based on a position of a driver seat of the vehicle.
Abstract:
A headrest positioning system for automatically adjusting the position of a headrest of a vehicle seat. The headrest can be a power headrest that is part of a power seat system, where the position of the headrest can be preset by a seat occupant with the other positions of the seat in a memory function. The system includes a seat occupant sensing system that senses the position of the seat occupant's head, eyes or other facial features to determine a desired position of the headrest. The system compares the actual position of the headrest to the desired position, and automatically adjusts the position of the headrest to the desired position. In one embodiment, an imaging system determines the position of the seat occupant's head. In another embodiment, the system determines the position of seat occupant's eyes based on the position of the driver side mirror.
Abstract:
A method is disclosed for managing variation in acceleration values obtained from a vehicle acceleration sensor for use in on-board computer based crash evaluation algorithm. Sources contributing to the variation are identified and a determination is made of the magnitude of the variation from each source to a selected multiple of a standard deviation, for example, 3 to 6 σ. The variation for each source is suitably combined to produce a database of acceleration-time history with the combined variations for use in calibrating and or validating a candidate crash algorithm.
Abstract:
A beam system of telescoping tubes is used for absorbing side impacts to a passenger vehicle. A central outer tube is attached to a vehicle seat structure and extends between, e.g., a side door and the tunnel in the passenger compartment floor. Inner tubes in each end of the outer tube are moved between retracted positions to extended positions respectively engaging said tunnel and said door during vehicle operation. Each inner tube has a tapered piston carrying rolling elements for wedging against the outer tube for energy absorption upon a side impact.
Abstract:
A computer based method for activating a vehicular safety device for passenger protection is disclosed. The method uses a centrally located front-end acceleration sensor and a passenger compartment sensor. When a crash situation is sensed, current acceleration data is integrated to produce velocity values for both sensor locations. Actual displacement values for the front-end sensor are calculated as well as displacement values based on absolute values of acceleration of that sensor. The velocity and displacement values are selectively used in at least three vehicle crash mode analyses. Examples of such crash modes are full frontal-like modes, pole-like modes and angle-like modes. When appropriate threshold values are exceeded, device activation for one or more activation stages is initiated.
Abstract:
A computer based method for activating a vehicular safety device for passenger protection is disclosed. The method uses two front-end acceleration sensors and a passenger compartment sensor. When a collision situation is sensed, current acceleration data is integrated to produce velocity and displacement values for the sensor locations. The velocity and displacement values are selectively used in at least three vehicle collision mode analyses. Examples of such collision modes are a full frontal mode, an angle mode and an offset deformable barrier mode. Each collision mode has sub-modes corresponding to the desired levels of airbag inflation. When appropriate threshold values are exceeded, device activation for one or more activation stages is initiated.
Abstract:
A pre-impact mode of a bumper system is provided by extending a bumper member outwardly and extending a stiffener member downwardly. Both the bumper member and the stiffener member are separately adapted to engage an object. The bumper system includes a bumper member movable between a retracted position and a laterally extended position. A stiffener member is movable between a retracted position and a downwardly extended position. An actuator mechanism is adapted to move the bumper member between the retracted and laterally extended positions and to cause the stiffener member to move between the retracted and downwardly extended positions as a result of moving the bumper member.
Abstract:
A knee bolster system is capable of automatic extension and retraction during specified scenarios that are determined based on sensor input. A microprocessor electrically controls an actuator capable of extending at least one telescoping mechanism which is rigidly engaged to a knee bolster pad located in the lower portion of an instrument panel at knee height to an occupant. Each telescoping mechanism houses a plowing mechanism. This plowing mechanism generates reaction forces during actuation.