Libraries for Bosch ECUs

Together with Bosch, AVL has developed Bosch ECU specific calibration routines:

CAMEO Charge Determination

The procedure Charge Determination is designed to automate the measurements which are required for the offline calibration of the charge determination model and further base maps of gasoline engines using Bosch ME7/MED7 and ME9 systems.

At each specified operating point, the Charge Determination procedure will set a desired lambda and will take a measurement after the desired stabilization time. The measurement will start at the lowest speed and highest load and load will be reduced at constant speed. The next speed will be started again at the maximum defined load point.

The test procedure includes for example strategy specific reactions in response to engine misfire or pedal stop positions, warm-up- and fallback points for safe engine operation, automatic air-fuel-mixture enrichment due to overly high exhaust gas or catalyst temperatures or optional variation strategies for varying swirl control valves, camshaft positions, intake manifold lengths, etc. for each speed/load point.

Futhermore the measured data can be exported in Excel format for use by the Bosch evaluation tool RBDAT.

CAMEO Torque Mapping

The torque mapping procedure is designed to automate the measurements which are required for the offline calibration of torque models for Bosch ME7/MED7 and ME9 systems.

This test run procedure supports the torque model calibration of systems with manifold injection, as well as the torque model for homogeneous mode of systems with gasoline direct injection.

At each specified speed/relative air-mass operating point, the test run procedure will set a desired lambda, measure the drag-torque, search for optimum spark advance and perform a spark sweep.

The procedure includes strategy specific reactions in response to engine misfire or pedal stop positions, automatic air-fuel-mixture enrichment due to overly high exhaust gas or catalyst temperatures, automatic reaction to misfiring, or automatic misfire detection by observing emission channels, catalyst temperatures and/or ignition fault channels of indication systems. Furthermore the torque mapping procedure allows a MBT (minimum spark for best torque) or knock borderline search and further variation loops for varying EGR, waste gate position, camshaft phasing.