Apparatus for visually indicating the travel route of an automot

Details Apparatus for visually indicating the travel route of an automot Apparatus for visually indicating the travel route of an automot

1982-06-07

1985-07-23

Groody, James J.

Communications: electrical

Vehicle position indication

Map display

34030915, 73178R, 73505, 73516LM, 364450, 364460, G08G 112

Patent

active

045311234

ABSTRACT:
An apparatus for use in an automotive vehicle for visually indicating the travel route thereof. A current travel route of the vehicle is arithmetically obtained in terms of two-dimensional coordinates for a unit travel distance of the vehicle on the basis of outputs from a travel distance detecting unit and a gas rate sensor. The thus-obtained locational data on the current location of the vehicle, varying from time to time, is stored in sequence, and the current travel path of the vehicle is continuously visually indicated. A timer unit is provided for starting the supply of power to the gas rate sensor a sufficient amount of time prior to starting the vehicle to permit the sensor to reach a stable working temperature in advance.

REFERENCES:
patent: 3948107 (1976-04-01), Asmar
patent: 3960344 (1976-06-01), Dugan
patent: 4026159 (1977-05-01), Isakson
patent: 4402050 (1983-08-01), Tagami
patent: 4408490 (1983-10-01), Takahashi
Industrial Electronics, Spracklan, Feb. 1965, pp. 72-76.

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