The control of the spark ignition of an automotive engine requ·ires constant peTjormance over a wide range of parameters. The control system is shown ·in the following diagram, where a controller gain K is to be selected.

R(s)

Spark Ignition Control System The paran1.cter- p is equal to 2 for many autos but can equal zero for those with high performance. Select a gain K that will result ·in a stable system for both values of p.

Problem