| 摘要 |
The invention relates to a process for controlling the fuel-air ratio for a gas engine which is provided with one or more 1 sensors and a three-way catalyst, as well as a control system for adjusting the fuel-air ratio by means of a control element on the basis of the signal of a first 1 sensor, comprising stepwise adjusting the 1 value at regulated intervals, at constant load of the engine, and measuring the corresponding activity of the catalyst, determining the corresponding measuring signals of the 1 sensor, and determining the value of the measuring signal at which the activity of the catalyst considerably increases or decreases, followed by adjusting the value of the control signal of the 1 sensor which is maintained as the desired control value on the basis of the latter measuring signal. |
