OTTO ENGINES HAVING ELECTRONIC CONTROL AND REGULATION
I. Geiger, C Klarhoefer, Karlheinz Stamm · AUTOMOBIL-INDUSTRIE · 1979
Increased demands for energy saving and concern for the environment have forced vehicle manufacturers to provide more and more complicated systems for mixture formation, ignition and treatment of exhaust fumes. The limit is being reached with conventional, mainly mechanical devices. Electronics offers a way out: it facilitates a very flexible and complex processing of signals. It has not yet been possible to develop an automatic, optimum control apparatus which operates during the running of the engine, but a significant step forward is achieved by the provision of controls and additional control loops in the engine. These controls can automatically maintain tolerances within the limit of the working area, for example with knock control or control of idling speed, or they can balance out the effects of component tolerances and ageing of the engine. (TRRL)