| 摘要 |
The composition of mixture supplied to an internal combustion engine is controlled by an exhaust gas recirculation valve (9) (9), a device (18) for metering the injected fuel flow rate and a device (42) for measuring the induction air flow rate. From the air flow rate, a value is derived for the required fuel flow rate and, when a deviation arises between the actual fuel flow rate and the desired fuel flow rate, a control signal in the form of a control pressure is produced, corresponding to which the exhaust gas recirculation flow rate is modified. The control pressure is compared in a second comparator apparatus (56) with a set value to control an exhaust gas recirculation valve (11) and is compared in a third comparator apparatus (61) with a set value, by which a correction element acting upon a flow adjustment element (63) of the fuel metering device (18) can be actuated. The actuation is carried out by an auxiliary energy source, the effect of which is controlled by the comparator apparatuses. <IMAGE> |
