Abstract: A control system for metering fuel to an internal combustion engine is proposed. Time duration values TVO and threshold values are preferably pregiven for the engine temperature in the idle case XOLL and in the non-idle case XONLL in dependence upon the start temperature. In a preferred embodiment, and after a start temperature dependent time has elapsed, an inquiry is made as to whether the engine temperature has already reached values which correspond to stored threshold values for the idle case and for the non-idle case and a switchover from open-loop operation to closed-loop operation of the lambda control takes place in dependence thereupon.

Abstract: A method for controlling a consumer driven by an internal combustion engine 1 is suggested, especially a compressor 2 of an air-conditioning system of a motor vehicle, in which before the compressor is put into operation, the power output of the internal combustion engine is increased by a fixed amount before the compressor is switched on after a predetermined delay. The method is characterized in that the load occurring on the internal combustion engine as a result of the operation of the consumer is determined before the consumer is put into operation, and in that the power output of the internal combustion engine is increased as a function of the expected load, and the consumer is then put into operation. Preferably, to determine the expected load on the internal combustion engine, the pressure in the high-pressure region of the compressor is measured by means of a sensor 6.