Starting systems are used for diesel vehicles with max. 1 cubic liter capacity per cylinder. These systems increase the temperature inside the combustion chamber. For a reliable cold start, glow plug temperatures of at least 850 °C (1500° F) are required – closely related to the engine design and condition as well as to the ambient temperatures.
Innovative diesel engines feature a lower compression. As a result, the diesel/air mixture does not ignite itself anymore in case of a cold engine. A post glow system is thus required. It remains active even though the engine is already running – for comfortable and fuel-efficient engine operation e.g. in city or stop-and-go traffic.
Regeneration of particle filters
Diesel particle filters separate soot particles from exhaust gases. In order to prevent them from clogging the filter, separated soot particles are to be burnt periodically. This procedure is supported by modern glow systems heating up the filter by means of regeneration glowing.