Alert systems and methods for a vehicle

Methods and vehicles are provided for providing haptic feedback to a vehicle occupant. In one embodiment, the method includes selecting a pattern of active haptic periods during which a controller will command a plurality of haptic actuators disposed in a seat of a vehicle to generate haptic pulses,...

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Bibliographische Detailangaben
Hauptverfasser:	GREEN CHARLES A, STEBBINS MARK A, BALLIOS ALEXANDER N, MCQUEEN DIANE K, KIEFER RAYMOND J
Format:	Patent
Sprache:	eng
Schlagworte:	ALARM SYSTEMS ORDER TELEGRAPHS PERFORMING OPERATIONS PHYSICS SEATS SPECIALLY ADAPTED FOR VEHICLES SIGNALLING SIGNALLING OR CALLING SYSTEMS TRANSPORTING VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDEDFOR VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	Methods and vehicles are provided for providing haptic feedback to a vehicle occupant. In one embodiment, the method includes selecting a pattern of active haptic periods during which a controller will command a plurality of haptic actuators disposed in a seat of a vehicle to generate haptic pulses, determining a desired voltage of a signal supplied to the haptic actuators that indicates the active haptic periods to generate a desired intensity of haptic pulses, determining an actual voltage of an energy storage device of the vehicle, calculating a pulse width modulation (PWM) pattern that simulates the desired voltage when applied to the signal using the actual voltage, and generating a signal that indicates the active haptic periods based on the PWM pattern to command the haptic actuators to generate the desired intensity of haptic pulses.