Accelerometer method of indicating rolling resistance of a vehic

Details Accelerometer method of indicating rolling resistance of a vehic Accelerometer method of indicating rolling resistance of a vehic

1974-07-19

1977-01-18

Queisser, Richard C.

Measuring and testing

Frictional resistance, coefficient or characteristics

35 19R, G01N 356

Patent

active

040032418

ABSTRACT:
A portable unit comprising a tiltable accelerometer is mounted on a vehicle which is allowed to coast on a plane and a reading is taken to provide an indication of vehicle rolling resistance without regard to terrain, slope, vehicle weight or speed. By proper precalibration of the accelerometer, it is possible to obtain the coefficient of friction directly from the accelerometer reading. Other values which may be directly obtained from the output of the accelerometer when it is properly recalibrated include accelerating rate and braking rate of a vehicle and grade of terrain.

REFERENCES:
patent: 1317072 (1919-09-01), Carlier
patent: 2024231 (1935-12-01), Klopsteg
patent: 2052205 (1936-08-01), Baughman
patent: 2198278 (1940-04-01), Van der Heiden
patent: 2603885 (1952-07-01), Bates
patent: 2838009 (1958-06-01), Bonanno
patent: 3187552 (1965-06-01), Davies
patent: 3195342 (1965-07-01), Bartelink

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