Additional functions of the N62 CMDR are: self-diagnosis; control over the maximum allowable speed of the engine crankshaft; adsorber purge control; turning on the fuel pump and heating the oxygen content sensor in the exhaust gas; AB voltage control; communication with other systems, such as - ABS, DTC, DSC, ride height control, rain sensor, battery, automatic transmission.
Fuel vapors cannot leave the fuel tank without passing through the adsorber. The fuel tank vent solenoid valve is controlled according to the condition of the engine. Gasoline vapors formed in the fuel tank are accumulated in the adsorber and are fed through the solenoid valve through the inlet channel into the combustion chamber and burned. The adsorber purge valve operates cyclically and is controlled by the ECU-KSUD depending on the engine operating mode. While the valve is energized (more than 10 V), the piping to the inlet piping is closed. When the voltage is removed from the valve, it can open under the influence of vacuum in the intake manifold.
To communicate with other control units, the ECU-KSUD has a special data bus for exchanging information between systems. Such a bus provides high efficiency and a degree of vehicle protection in case of failure of individual devices, and also reduces the number of conductors in the cable harness.