F - Mech Eng,Light,Heat,Weapons – 02 – D
Patent
F - Mech Eng,Light,Heat,Weapons
02
D
338/3, 341/38.11
F02D 41/32 (2006.01) F02D 41/24 (2006.01)
Patent
CA 1270923
ABSTRACT OF THE DISCLOSURE A signal generator provides a non-linear fuel- control output signal, in response to an analog input-voltage signal which is linearly related to throttle setting. A multi-step switch divides into equal increments the full range of possible throttle- setting signals, and, in conjunction with a resistor network, provides a stepped output, the progression of which is a non-linear function of throttle setting. A dither circuit produces an oscillating sawtooth voltage of amplitude scaled to a one-step increment, and addition of this voltage to the throttle-setting voltage is effective to produce a smooth and effectively continuous non-linear output of the resistor network. A smoothing circuit at output of the resistor network fields a d-c output which is non-linearly related to the throttle setting. Non-linearity can be designed to various requirements merely by selection of compon- ent values in the resistor network, without change of the switch and without modifying or adjusting any of the componentry for input-signal supply to the switch.
542894
Brunswick Corporation
Marks & Clerk
LandOfFree
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