Method and system for electronic simulation of a freewheel

Details Method and system for electronic simulation of a freewheel Method and system for electronic simulation of a freewheel

1978-12-04

1980-10-28

Krass, Errol A.

Boots, shoes, and leggings

74866, 364578, G06F 1520, G05G 1508

Patent

active

042310920

ABSTRACT:
To simulate freewheel operation, that is to allow torque transmission in one direction only, the variation with respect to time of the torque transmitted by a friction coupling clutch or brake band) is computed and the coupling is released when the transmitted torque passes through zero. When the coupling is slipping, the time at which the torque passed through zero is taken to be the time at which the input and output speed of the coupling are the same. When a slipping and a fully engaged coupling are connected in parallel, the torque transmitted by the fully engaged coupling is computed from a set of equations utilizing only parameters sensed in any case in a standard drive system. Speed sensors and a torsiometer furnish signals required for the computations. Preferably, the computations are implemented by a microprocessor.

REFERENCES:
patent: 3013442 (1961-12-01), Fox et al.
patent: 3913419 (1975-10-01), Sale et al.
patent: 3937105 (1976-02-01), Arai et al.
patent: 3942393 (1976-03-01), Forster et al.
patent: 4107776 (1978-08-01), Beale

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