Last exit warning system

Details Last exit warning system Last exit warning system

1995-12-19

1998-08-04

Nguyen, Tan Q.

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indication of fuel consumption rate or economy of usage

701201, 701204, 701211, 701213, 340991, 340994, 340995, B06F16500, H04Q 732

Patent

active

057909733

ABSTRACT:
A warning system automatically alerts a vehicle operator to the fact that the next available exit should be taken for a desired or necessary service such as refueling. The system includes a source of information providing the current vehicle location as well as a source of information identifying the location of available selected service locations closest to each of the next two exits of a limited access highway. The system in a preferred embodiment includes a source of information indicating the available range of the vehicle (distance to empty or D.T.E.) and a microprocessor for calculating when the driver should take the next available exit to reach the desired service. The system further includes a suitable alarm which may be an audible alarm, a visual alarm or both to alert the vehicle operator that the next available exit should be taken.

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