DtsI-Digital twin Spark Ignition system
APDV-Advanced Pro series Digital Variable ignition system.
In dts-i system there are two fuel nozzles in the engine. In normal engines there is a single nozzle at mid position of the top of the cylinder.With the help of two nozzles engine can achieve more effective burning and efficiency.
In APDV - there are more than one nozzles and these deliver fuel on different time interval to facilitate proper burning of fuel.