To do this, the block reads the values of the following variables.
- Air flow and temperature data from the intake air mass sensor (B2/5) (next - MAF sensor) and from the sensor built into the MAF sensor (B2/ 5b1) air temperature (for motors With code MF4).
- The current pressure value in the TKVD from the sensor (В4/6) pressure.
- Current values of boost pressure from the sensor (B5/1) and charge air temperature from the sensor (At 17/9).
- coolant temperature from sensor (B11/4).
In addition, the CDI control unit is connected (CAN-C) (further in the text, in a similar way, multiplex networks through which communication is carried out are indicated in brackets) with the following control units for the information listed below.
- With instrument cluster (Al) (CAN-C -CAN-B) to provide speed limit mode on winter tires or traction measurement mode for the ESP system
- With ETC control unit (EGS) to determine the automatic transmission gear number.
The CDI control unit performs the following control functions in driving mode:
- fuel management;
- boost control;
- emission control (MF8 and MF4) (further in the text, in a similar way, in brackets, the codes for the execution of engines with the restriction of the emission of harmful substances are indicated (see beginning of section));
- compressor shutdown (A9) conditioner.
In this mode, the block receives the following information.
- Accelerator pedal sensor signal via CAN-C multiplex network (B37/3).
- Fuel Temperature Sensor Signal (B50).
- Pressure sensor signal in TKVD (В4/6).
- input signal (to the exhaust gas converter) oxygen sensor (G3/2) (MF4).
- Engine speed signal on a separate circuit (L5).
- Signal about the position of the automatic transmission selector from the gear selector block (N15/5).
- Wheel speed sensor signals from the ESP control unit (N30/4).
- Coolant temperature sensor signal on a separate line (B11/4).