An engine controller for engine control apparatus is configured to retard an ignition timing, from an engine starting mode timing to a catalyst warm-up mode timing at an idle attainment moment at which an engine idling condition is reached, and to regulate an intake air quantity at a prior moment prior to the idle attainment moment. A centralized Software Defined Networking controller and distributed SDN controller agents that may be seen in a Service Provider, Enterprise or distributed computing environment with remote and mobile end-users is provided. The standard node sequence may include at least an index node and a condition node. The audio signals received by the USB interface can be transmitted to an audio system in the chassis via the audio interface. A method for producing such a load-bearing structure in which a sheet of rubber is treated with an oxidant, excess oxidant is removed, whereafter the sheet is glued between the two layers. Providing a second reference in a second direction and scanning an optics system over the first reference and the second reference to determine a teach point.