Portable navigation apparatus with refueling prompt function and method thereof
First Claim
1. A portable navigation apparatus with a refueling prompt function, comprising a display unit, an audio output unit, an input unit, a processing unit, an electronic map database, a memory and a GPS receiver for receiving satellite positioning data from a GPS satellite, the processing unit comprising a route navigation unit for generating a navigation route;
- characterized in that;
the memory comprising;
a driving style table recording a plurality of road ranks and a plurality of corresponding average vehicle speeds in accordance with a driving style of a user; and
a fuel consumption reference database storing relations between vehicle velocities and fuel consumption rates; and
the processing unit further comprising;
a fuel recording unit recording fuel quantity; and
a refueling prompt unit automatically calculating forecasting fuel consumption required for traveling from a current location to a next gas station near the navigation route according to the navigation route, the driving style table and the fuel consumption reference database while the current location approaches a gas station near the navigation route, or while a new route or a re-planned route is generated, and prompting an alarm signal when the forecasting fuel consumption is greater than the fuel quantity.
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Accused Products
Abstract
This present invention provides a portable navigation apparatus with a refueling prompt function, characterized in that the memory comprises a driving style table and a fuel consumption reference database, and the processing unit comprises a fuel recording unit and a refueling prompt unit. Wherein, while a vehicle approaches a gas station near the navigation route, or while a new route or a re-planned route is generated, the refueling prompt unit is able to automatically calculate forecasting fuel consumption required for traveling from a current location to a next gas station near a navigation route according to the navigation route generated by the route navigation unit, the driving style table and the fuel consumption reference database, and prompting an alarm signal when the forecasting fuel consumption is greater than the fuel quantity to remind a user to refuel firstly.
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Citations
18 Claims
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1. A portable navigation apparatus with a refueling prompt function, comprising a display unit, an audio output unit, an input unit, a processing unit, an electronic map database, a memory and a GPS receiver for receiving satellite positioning data from a GPS satellite, the processing unit comprising a route navigation unit for generating a navigation route;
- characterized in that;
the memory comprising; a driving style table recording a plurality of road ranks and a plurality of corresponding average vehicle speeds in accordance with a driving style of a user; and a fuel consumption reference database storing relations between vehicle velocities and fuel consumption rates; and the processing unit further comprising; a fuel recording unit recording fuel quantity; and a refueling prompt unit automatically calculating forecasting fuel consumption required for traveling from a current location to a next gas station near the navigation route according to the navigation route, the driving style table and the fuel consumption reference database while the current location approaches a gas station near the navigation route, or while a new route or a re-planned route is generated, and prompting an alarm signal when the forecasting fuel consumption is greater than the fuel quantity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- characterized in that;
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10. A method for performing a refueling prompt function on a portable navigation apparatus, comprising steps of:
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establishing a driving style table recording a plurality of road ranks and a plurality of corresponding average vehicle speeds in accordance with a driving style of a user providing a fuel consumption reference database storing relations between vehicle velocities and fuel consumption rates; providing a fuel recording table recording fuel quantity; generating a navigation route; automatically calculating forecasting fuel consumption required for traveling from a current location to a next gas station near the navigation route according to the navigation route, the driving style table and the fuel consumption reference database while the current location approaches a gas station near the navigation route, or while a new route or a re-planned route is generated; and prompting an alarm signal when the forecasting fuel consumption is greater than the fuel quantity by the refueling prompt unit. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification