In Eco mode, the engine delivers enhanced fuel economy by operating at a lower maximum
engine speed (1,925 rpm).
The tractor's electronics will handle the balance between
engine speed and transmission ratio to achieve the desired result.
The objective of this work is to conduct a comparative study of simulation results of the intake and the exhaust manifolds flow parameters of a six-cylinder direct injection turbocharged compression ignition engine based on steady-state simulation for different mass fuel injected and
engine speed. The results obtained with the elaborate calculation code in FORTRAN language and those with the GT-Power software.
The 4-speed transmission had two first gears: a "special low" good for 1.6 mph and a regular first at 2.25 mph, both at l,800rpm rated
engine speed. Sales literature stated a ground speed of 0.75 mph could be obtained in "special low" by throttling back the
engine speed, which would result in a low idle speed of about 845rpm.
Although literature highlights considerable research activity on performance and emissions of many types of engines fuelled with biodiesel from different feedstock, most of the results have been obtained with engine designed for agricultural purpose, tested in specific values of
engine speed and load conditions.
These transmissions are equipped with a control system that can adjust the gear ratio and
engine speed so that it can work at a point of maximum fuel efficiency for certain conditions (RENIUS & RESCH, 2005).
The design could be used for any
engine speed but would be most effective when valve event control is optimised for all different
engine speeds and load conditions.
engine speed (1/3rd, 2/3rd, and Full) respectively.