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US 2008/0185966 A1Published application
System for pre-indication of motor vehicle hid lamp feature
AssigneeInternational Truck Intellectual Property Company, LLC
InventorLance G. Kaczorowski
Life of this patent
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Abstract
Vehicle high intensity discharge lamps are available with three wire ballasts which emit a signal indicating proximate shutdown of the ballast and thus failure of the bulb energized by the ballast. The signal provides indication to a vehicle electrical controller which can be relayed to a remote facility which schedules replacement of the bulb.
Claims3
A vehicle lamp system, comprising:
- high intensity discharge lamps;
- ballasts for energizing the high intensity discharge lamps and providing signals indicative of impending failure of the high intensity discharge lamps;
- a programmable controller coupled to receive the signals indicative of impending failure of a high intensity discharge lamp;
- a remote facility for management of a fleet including a vehicle on which the vehicle lamp system is installed;
- means for notifying a remote controller of the impending failure;
- and
- program means executed on the remote facility for selecting a repair location for replacement of the lamp.
4 more elements
A vehicle comprising:
- high intensity discharge lamps with three wire ballasts which emit a signal indicating proximate shutdown of the ballast and thus failure of the lamp;
- and
- means responsive to the signal for scheduling a time and location for replacement of the lamp.
Dependencies are inferred from the claim text.