Apparatus for detecting speed of vehicle with internal combustio

Details Apparatus for detecting speed of vehicle with internal combustio Apparatus for detecting speed of vehicle with internal combustio

1985-07-23

1988-05-31

Lall, Parshotam S.

Boots, shoes, and leggings

324161, 364565, 73 2, F02M 5100

Patent

active

047485655

ABSTRACT:
In a speed detecting apparatus of a vehicle with an internal combustion engine whose rotational output is derived through a transmission, the apparatus comprises a circuit for calculating the gear ratio set in the transmission on the basis of the engine speed and a signal roughly indicative of the vehicle speed and a calculating circuit responsive to the result of the calculation in the circuit and the engine speed at each instant for calculating the speed of the vehicle at each instant. Thus, it is possible to accurately detect the vehicle speed at each instant in a short detection period.

REFERENCES:
patent: 4070901 (1978-01-01), McDonald
patent: 4086532 (1978-04-01), Aronson et al.
patent: 4167699 (1979-09-01), Baker
patent: 4506216 (1985-03-01), Fukamachi et al.
patent: 4527248 (1985-07-01), Takase et al.
patent: 4566069 (1986-01-01), Hirayama et al.

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