System for controlling the fuel supplied to an automotive engine

Details System for controlling the fuel supplied to an automotive engine System for controlling the fuel supplied to an automotive engine

1987-02-25

1988-09-20

Love, John J.

Motor vehicles

With means for detecting wheel slip during vehicle...

74866, 74871, 180282, 180335, B60K 1500

Patent

active

047718498

ABSTRACT:
An automotive engine forming part of a motor vehicle is controlled to avoid slipping or spinning of a driven wheel by controlling the maximum rate of change of fuel which can be supplied to the engine, for example, by limiting the speed of deflection of a throttle flap (6) driven by a servo motor (7). The deflection speed, limited for example by a voltage divider (14) can be controlled as a function of operating parameters of the engine or the vehicle, for example, vehicle speed (V.sub.F), engine speed (n.sub.M), engine loading or a percentage of engine loading, actual wheel slip, actual angle or deflection position of the throttle flap, and the like. Further, non-linearities between deflection of an operator actuated pedal, such as a gas pedal (1) and actual deflection of the control flap (6) can be compensated for, for example, in a difference forming circuit (9) providing an output error signal for the servo motor (7) or by software, e.g. by recourse to non-linear characteristics stored in a table or graph. The duration of limiting can be determined by timing circuit connected to a terminal (p) for example, on the voltage divider (14). The system can be instrumented electrically (FIG. 2) or, for example, hydraulic-electrically (FIG. 3).

REFERENCES:
patent: 3627074 (1971-12-01), Binckhardt
patent: 3689263 (1972-04-01), Gunsser
patent: 3752249 (1973-08-01), Gelenius
patent: 3776357 (1973-12-01), Arai
patent: 4432430 (1984-02-01), Lind
patent: 4554990 (1985-11-01), Kamiya

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