GF07.10-P-1013OGG Torque Coordination, Function

GF07.10-P-1013OGG Torque Coordination, Function
- as of model year 09

Function requirements for torque coordination, general points
^ Circuit. 87 ON (engine control ON)
^ Engine running

Torque coordination, general points
The torque interface in the CDI control unit (N3/9) coordinates and sets priorities for the requirements of all systems (according to drivability and priority setting), which determine engine torque requirement. It also determines how dynamically each requirement is to be implemented.

The following systems and functions can request an engine torque:
- Driver, through the accelerator pedal sensor (B37)
- Electronic Stability Program (ESP), through the ESP control unit (N47-5)
- Cruise control, from the ESP control unit
- Electric controller unit (VGS) (Y3/8)
- Maximum engine speed limitation
- Maximum vehicle speed limit
- Maximum torque limitation

Function sequence for torque coordination
According to the dynamic requirements, the CDI control unit varies the engine torque requirement, by:
- Extending or shortening the injection time of the fuel injectors (Y76)
- Increasing or lowering the fuel pressure in the rails over the pressure regulating valve (Y74) and quantity control valve (Y94)