Abstract:
A method for detecting a rough road surface upon which a vehicle is travelling, such detection being utilized by a crash sensing system for improving its immunity to inadvertent deployment during minor crash incidents. The onset of a crash event is sensed by an on-board accelerometer when the detected vehicle deceleration exceeds a predetermined deceleration threshold value. A rough road measurement is calculated as a function of the vehicle deceleration data and compared to a threshold boundary curve. A value of the rough road measurement exceeding the boundary curve is indicative of a rough road event.
Abstract:
An air bag deployment door in an instrument panel has a sliding bolt engaging an aperture in the panel to latch the door closed. A pivoted linkage connected to the bolt is engaged by the air bag upon initial inflation to withdraw the bolt to release the door. Alternatively, a flexible plastic sheet covering a recess in the inner side of the door has a movable margin portion which engages a slot in the instrument panel opening to latch the door closed. The air bag, upon initial inflation, pushes the sheet into the recess causing the margin portion to pull out of the slot to release the door.
Abstract:
An airbag assembly includes an housing, an inflator mounted in the housing, and an airbag. A vent opening is provided in the wall of the housing for venting inflation gas from the housing. A vent cover closes the vent opening so that inflation gas does not reach the vent opening. A valve member also closes the vent cover and is selectively moveable by an electric actuator to adapt the valve member to a selected degree of closure in response to sensed conditions of the occupant and the vehicle. A tether is connected to the airbag and to the vent cover to suddenly open the vent cover as the airbag reaches a certain stage in its deployment, so that the rate at which inflation gas is vented from the housing through the vent opening will be determined by the previously established selected degree of closure of the vent opening.
Abstract:
A method and system are provided for planning a route for a vehicle from a starting point to a destination. The method includes the steps of generating a plurality of routes based on a non-safety factor; evaluating the plurality of routes based on a safety factor; selecting a first route from the plurality of routes based on the safety factor; generating driving instructions based on the first route; displaying the first route on a display device.
Abstract:
A system and method for providing mechanical time dilation by pre-braking a vehicle in the event there is a collision threat so as to reduce or eliminate the need for full automatic braking if the collision becomes imminent. The system calculates a time dilation deceleration to either maintain a time to collision at a previous value before the calculation or at a predetermined value. The system also estimates a projected closing speed of the vehicle to the object at a distance that would require full automatic braking to prevent a collision. The system then determines whether the time dilation deceleration is greater than a decelerating threshold and, if so, provides automatic vehicle braking at the threshold until the vehicle comes to a full stop. If the time dilation deceleration is not greater than the threshold, then the system provides automatic braking to decelerate the vehicle at the time dilation deceleration.
Abstract:
A method for predicting potential injury assessment for at least one occupant of a vehicle involved in a crash event and for broadcasting assessment of the occupant to a medical response unit. An occupant seated in each seat of a vehicle is detected. Occupant data is obtained relating to physical characteristics of each occupant seated in the vehicle. A crash event involving the vehicle is detected. Vehicle dynamic data and safety restraint data during the crash event is recorded. The potential injury assessment of each occupant is predicted by an injury assessment processing module based on the vehicle dynamic data and safety restraint data obtained during the crash event and the occupant data of each occupant in the vehicle. The corresponding injury assessment of each occupant of the vehicle is broadcast to a medical response unit.
Abstract:
A method and system for recognizing and verifying the identity of a driver and front seat passenger of a vehicle. A vehicle owner uploads profile data for several individuals who may be a driver or passenger to a database in the vehicle. When a driver or passenger enters the vehicle, the system uses the profile data—which can include height, weight, and gender information about the individual—along with vehicle data such as seat position, to identify the driver or passenger from the database. The profile data for the known individual is then used to adjust the position of the seat and other components in the cockpit. The profile data is also used by various safety and convenience systems onboard the vehicle.
Abstract:
An algorithm that is part of a collision preparation system that provides selective and limited vehicle braking to avoid undesirable intrusive high-G braking while still giving the system adequate time to activate collision mitigation devices on the vehicle before impact with an object. If a predicted time to collision between the vehicle and the object is less than a required time to collision, which is determined by how much time is necessary for a certain collision mitigation device to be activated, the algorithm calculates a time dilation deceleration. The system causes the vehicle to automatically brake to decelerate the vehicle at the time dilation deceleration until the time dilation deceleration reaches a predetermined decelerating threshold so that more time is available for the collision preparation system to determine whether to activate the collision mitigation device.
Abstract:
An energy-absorbing hood assembly for a vehicle includes an inner layer operatively secured to an upper layer having a first interface surface. The inner layer has opposing first and second surfaces defining a sinusoidal profile that is oriented to extend from the forward end of the vehicle towards the rearward end of the vehicle. The sinusoidal profile includes varying amplitudes and wavelengths along different regions of the hood assembly. The amplitudes and wavelengths are individually configured to provide regionally distinct predetermined levels of absorption and attenuation of kinetic energy imparted to the hood assembly by an object upon impact therebetween. Preferably, the hood assembly also includes a lower layer having a second interface surface; wherein the inner layer has a plurality of bonding surfaces attached to the first and second interface surfaces to thereby define a plurality of laterally oriented channels.
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.