Electronic device for a vehicle

Details Electronic device for a vehicle Electronic device for a vehicle

1994-06-10

1996-03-05

Grosland, Donnie L.

Communications: electrical

Land vehicle alarms or indicators

For bicycle

340459, 340461, 340438, 340456, 340601, 34087001, 364420, B62J 300, B60Q 100

Patent

active

054971438

ABSTRACT:
An electronic device for a vehicle detects the number of rotations of a wheel of a vehicle, calculates the distance covered by the vehicle, measures the atmospheric pressure to provide data on the atmospheric pressure, obtains a height corresponding to the measured atmospheric pressure from a height-atmospheric pressure conversion table stored in a RAM on the basis of the measured atmospheric pressure data, calculates an tilt of a road where the vehicle travels on the basis of the height and the measured covered distance, detects a gear corresponding to the calculated tilt from a gear change conversion table, drives a transmission to put the gear in the meshed state. In order to apply a barometer to a weather forecast, an actual height where the vehicle travels is calculated on the basis of data on a tilt of the road measured by an inclinometer attached to the vehicle and the calculated covered distance. A change in the atmospheric pressure due to weather is distinguished from that due to the height to predict weather. The inventive device sets a gear suitable for the road and provides weather prediction, thereby bringing about efficient safe cycling.

REFERENCES:
patent: 4633216 (1986-12-01), Tsuyama
patent: 4859984 (1989-08-01), Romano
patent: 5008647 (1991-04-01), Brunt et al.
patent: 5017916 (1991-05-01), Londt et al.
patent: 5309139 (1994-05-01), Austin

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