The management system of a modern heavy-duty diesel engine is based on several thousand parameters, curves and maps that are processed in the engine control unit. The chief aim in calibrating the ECU is to optimize fuel consumption, NVH and emissions while providing the level of performance that is demanded. For this purpose, the calibrations defined in steady-state and dynamic operation on engine dynamometers are validated and optimized in real-life vehicle operation, also in terms of in-use compliance (IUC). We define our own exacting quality criteria for calibrating parameters specified neither by the client nor the legislator.
In addition to calibrating emissions and fuel consumption, a wide range of different demands on diagnosing the overall system must be met to ensure proper operation. We calibrate these diagnostic functions (OBD) to suit the particular engine and also enhance them in line with client specifications. Diagnostic functionality is validated by HiL simulation in the real-life control unit.
Our range of services:
We calibrate:
- Commercial-vehicle engines (on and off-road)
- Exhaust-gas aftertreatment (e.g. DPF, SCR, LNT)
- Transmissions
- Hybrid powertrains
- Diagnostics / OBD
Our capacities:
- Over 1,000 calibration and powertrain electronics engineers working on an interdisciplinary basis
- Germany's largest "diesel calibration team"
- 44 highly automated engine dynamometers (up to 750 kW / 4500 Nm
- Component test stands for turbochargers, injection hydraulics etc.
- DoE with IAV’s EasyDoE ToolSuite and Orion
- Dataset management with IAV-CalGuide®
We work across the globe with experienced staff in calibrating powertrain management systems. We adjust powertrain-management and OBD algorithm calibration to meet the various emission limits under international requirements and provide emission certification to European, U.S. (EPA) and Japanese standards.