DTS-i – Digital Twin Spark Ignition
DTS-i stands for Digital Twin Spark Ignition, a Bajaj Auto trademark. Bajaj Auto holds an Indian patent for the DTS-i technology. Simply it means that there are 2 spark plugs in the single cylinder engine and the timing of sparkplugs are controlled by a digital microprocessor. That is:- *Digital – Since the spark generation will be initiated by a microchip. * Twin – Since two spark plugs will be used. * Spark ignition – Since the ignition will be done via a spark. Currently one spark plug at one end of the combustion chamber is the conventional practice. The flame front created by the spark takes some time to reach the farthest portion of the combustion chamber. This leads to slower burning of the Air-fuel mixture and creates limitations in optimizing the combustion chamber characteristics *Slower combustion rate *Higher exhaust emission *Comparatively low mean effective pressure *High Knocking characteristics etc. To avoid these problems the cylinder head is equipped with two spark plugs, instead of the usual one. By generating two sparks at either ends of the combustion chamber, (approximately 90° to the valve axis) the air-fuel mixture gets ignited in a way that creates two flame fronts and, therefore, a reduction in flame travel of the order of 40 per cent is achieved. A fast rate of combustion is achieved leading to faster rise in pressure. The obvious outcome of this is more torque, better fuel efficiency and lower emissions. DTS-i technology employed with digital CDI technology and TRICS III technology for powerful performance. Main advantages are:- 1). Less vibrations and noise. 2). Long life of the engine parts such as piston rings and valve stem. 3). Decrease in the specific fuel consumption 4). Lower emissions. 5). Gradual increase in the pressure hence power is uniformly distributed throughout the crank angle and hence smooth ride.