PROCEDE ET DISPOSITIF POUR COMMANDER UN MOTEUR A COMBUSTION INTERNE
PROBLEM TO BE SOLVED: To maintain fuel heating within a specified limit without using an additional fuel cooler by controlling at least one control quantity of an internal combustion engine depending on the temperature value in such a way that the temperature value does not exceed the specified crit...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To maintain fuel heating within a specified limit without using an additional fuel cooler by controlling at least one control quantity of an internal combustion engine depending on the temperature value in such a way that the temperature value does not exceed the specified critical value. SOLUTION: At the time of controlling fuel injectors provided cylinder by cylinder of an engine, the driver requested quantity QK0 is determined by a quantity setting part 200 on the basis of output signals of an accelerator pedal transmitter 205, a rotating speed sensor 122, and the like. In a first minimum selecting part 210, a quantity signal QK0 is limited to the maximum allowable value based on a first limiting part 215. In a temperature limiter 225 inputting fuel temperature detected by a temperature sensor 230, whether the fuel temperature is larger than the critical value or not is judged, and in the negative case, the critical value QTK and the limited quantity QK1 are made into comparison in a minimum value selecting part 220. The smaller one is sent as a signal QK2 to a third minimum selecting part 235, and a signal QK limited to an output signal of a second limiting part 240 is sent as the fuel injection quantity to each fuel injector. |
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