R 1200 CL
R 1200 CL
R 1200 CL
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
R <strong>1200</strong> <strong>CL</strong><br />
Digital Motor Electronics MA 2.4<br />
The fuel pump – together with a fuel pressure<br />
regulator – ensure that adequate fuel<br />
volume is available with constant pressure<br />
to the fuel injectors. The fuel pump is<br />
switched on by the fuel pump relay which is<br />
controlled by the MA 2.4 control module.The<br />
fuel system pressure in the distributor is<br />
constant 3 bar.<br />
The Motronic control module receives the<br />
most important input signals from the hall<br />
sensors (crankshaft rotational speed and<br />
top dead center piston position) and from<br />
the throttle position sensor (angular position<br />
of the throttle valves).<br />
Technical Features in Detail<br />
The air volume drawn in is calculated (Alphan-control)<br />
via the angle of the throttle valve<br />
(Alpha) and the engine speed. The fine-tuning<br />
takes place via an engine temperature<br />
sensor, and the air temperature sensor and<br />
the integrated barometric pressure sensor.<br />
The oxygen sensor monitors the amount of<br />
remaining oxygen content in the exhaust<br />
gas. This allows the control module to<br />
manipulate the fuel injector on time (Ti) to<br />
maintain the optimum air fuel mixture. All<br />
information is compared with the programmed<br />
characteristics in the control unit.<br />
11