HOEHENKIRCHEN, GERMANY, 2016 – The process of ECU The process of ECU parameter tuning. Tests with ECU hardware and software in the loop are carried out. ECU internal variables and external sensor data is recorded and analyzed. The values of internal ECU parameters are determined as a result of this process.Calibration is driven by highly-specialized domain experts, who have a lot of system, controls and software knowledge. In the best case, this knowledge is documented via semi-formal methods in documents, spread sheets or programming scrips. In the worst-case, the knowledge exists within individual experts only and is passed on to others on-the-job. Some companies in the automotive industry started internal projects to develop in-house description methods and tools to capture this business-critical knowledge. However, the development is costly and has shown mixed results.
ASAM has tackled this problem with experts from twelve member companies from across the automotive industry by developing two new standards:
ASAM Measurement, Calibration and DiagnosticsMCD-2 Calibration Expert System Rule and Product Model Format (ASAM Standard)CERP (The process of ECU parameter tuning. Tests with ECU hardware and software in the loop are carried out. ECU internal variables and external sensor data is recorded and analyzed. The values of internal ECU parameters are determined as a result of this process.Calibration Expert System Rule and Product Format) covers the use-cases to describe ECU The process of ECU parameter tuning. Tests with ECU hardware and software in the loop are carried out. ECU internal variables and external sensor data is recorded and analyzed. The values of internal ECU parameters are determined as a result of this process.Calibration parameter dependencies and plausibility checks. Modern ECUs can have several ten thousand The process of ECU parameter tuning. Tests with ECU hardware and software in the loop are carried out. ECU internal variables and external sensor data is recorded and analyzed. The values of internal ECU parameters are determined as a result of this process.Calibration parameters, curves and maps, which depend on product properties and have interdependencies among each other. As a first step, the A public specification, which has been developed by experts in a defined consensus-driven development process and was released by officials that represent a significant share of the industry for which it is targeted, giving the specification the necessary legitimacy to be called a 'Standard'.Standard defines a product model, which allows to describe product-specific parameters such as the number of cylinders of an engine or the emission law to which the engine has to comply with. These parameters are typically not stored in ECUs. Based upon Open Test Sequence Exchange Format (ISO & ASAM Standards)OTX (International Organization for StandardizationISO 13209), the A public specification, which has been developed by experts in a defined consensus-driven development process and was released by officials that represent a significant share of the industry for which it is targeted, giving the specification the necessary legitimacy to be called a 'Standard'.Standard then allows as a second step to describe dependencies of The process of ECU parameter tuning. Tests with ECU hardware and software in the loop are carried out. ECU internal variables and external sensor data is recorded and analyzed. The values of internal ECU parameters are determined as a result of this process.Calibration parameters with product model parameters and other The process of ECU parameter tuning. Tests with ECU hardware and software in the loop are carried out. ECU internal variables and external sensor data is recorded and analyzed. The values of internal ECU parameters are determined as a result of this process.Calibration parameters. Since the Open Test Sequence Exchange Format (ISO & ASAM Standards)OTX programming language is Turing-complete, it is possible to write complex check routines including branches, loops, conditions and mathematic calculations. ASAM Measurement, Calibration and DiagnosticsMCD-2 Calibration Expert System Rule and Product Model Format (ASAM Standard)CERP adds The process of ECU parameter tuning. Tests with ECU hardware and software in the loop are carried out. ECU internal variables and external sensor data is recorded and analyzed. The values of internal ECU parameters are determined as a result of this process.Calibration-specific routines such as access to The process of ECU parameter tuning. Tests with ECU hardware and software in the loop are carried out. ECU internal variables and external sensor data is recorded and analyzed. The values of internal ECU parameters are determined as a result of this process.Calibration parameter data (according to ASAM Measurement, Calibration and DiagnosticsMCD-2 Measurement and CalibrationMC), The process of ECU parameter tuning. Tests with ECU hardware and software in the loop are carried out. ECU internal variables and external sensor data is recorded and analyzed. The values of internal ECU parameters are determined as a result of this process.Calibration runtime data (ECU values, units) and the product model data. Additionally, sophisticated check functions and procedures are defined to compare and validate data.
ASAM Calibration Process Exchange Format (ASAM Standard)CPX (The process of ECU parameter tuning. Tests with ECU hardware and software in the loop are carried out. ECU internal variables and external sensor data is recorded and analyzed. The values of internal ECU parameters are determined as a result of this process.Calibration Process Exchange Format) covers the Describes how an actor interacts with a system to achieve a goal by carrying out specific steps of actions or events. The actor can be a human or another system. ASAM's use of the term 'use-case' is based upon the definition in UML.Use-Case of describing The process of ECU parameter tuning. Tests with ECU hardware and software in the loop are carried out. ECU internal variables and external sensor data is recorded and analyzed. The values of internal ECU parameters are determined as a result of this process.Calibration test sequences and processes. The industry increasingly demands that this critical process knowledge is documented, is usable by other people, and that its execution can be automated as much as possible. ASAM Calibration Process Exchange Format (ASAM Standard)CPX is an extension of Open Test Sequence Exchange Format (ISO & ASAM Standards)OTX (International Organization for StandardizationISO 13209), which provides the necessary functionality. For example, the A public specification, which has been developed by experts in a defined consensus-driven development process and was released by officials that represent a significant share of the industry for which it is targeted, giving the specification the necessary legitimacy to be called a 'Standard'.Standard provides programmatic access to The process of ECU parameter tuning. Tests with ECU hardware and software in the loop are carried out. ECU internal variables and external sensor data is recorded and analyzed. The values of internal ECU parameters are determined as a result of this process.Calibration and The process of recording data from internal ECU memory and external sensors.Measurement data on the ECU, access to meta information about this data (from ASAM MCD-2 MC LanguageA2L files), functions for controlling the execution of The process of recording data from internal ECU memory and external sensors.Measurement tests and Is the process of imitation of the behavior of a modeled real-world system over time.Simulation models, and specific mathematical functions. Further extensions of Open Test Sequence Exchange Format (ISO & ASAM Standards)OTX even allow to use flow charts and state machines to describe the The process of ECU parameter tuning. Tests with ECU hardware and software in the loop are carried out. ECU internal variables and external sensor data is recorded and analyzed. The values of internal ECU parameters are determined as a result of this process.Calibration process.
ASAM tool vendors are currently in the process to develop tools based on these new standards. As soon as they become available, automotive companies have a chance to raise their ECU development process to a higher level. The process of ECU parameter tuning. Tests with ECU hardware and software in the loop are carried out. ECU internal variables and external sensor data is recorded and analyzed. The values of internal ECU parameters are determined as a result of this process.Calibration processes and The process of ECU parameter tuning. Tests with ECU hardware and software in the loop are carried out. ECU internal variables and external sensor data is recorded and analyzed. The values of internal ECU parameters are determined as a result of this process.Calibration parameter dependencies can be formally described, automatically executed or checked, and easily passed on to other experts or business partners. Expert knowledge becomes independent from persons or tools, can be put into libraries and is available to quickly setup new The process of ECU parameter tuning. Tests with ECU hardware and software in the loop are carried out. ECU internal variables and external sensor data is recorded and analyzed. The values of internal ECU parameters are determined as a result of this process.Calibration projects. The increasing complexity of ECUdevelopment becomes better manageable with these expert systems. They have the potential to shorten the development time, improve The process of ECU parameter tuning. Tests with ECU hardware and software in the loop are carried out. ECU internal variables and external sensor data is recorded and analyzed. The values of internal ECU parameters are determined as a result of this process.Calibration quality and to overall reduce the costs of ECU development.
The standards are available for immediate download for ASAM members or purchase for non-members.
About ASAM e.V.
ASAM e.V. coordinates the development of technical standards. These standards define protocols, data models, file formats and application programming interfaces (APIs) for the use in the development and testing of automotive electronic control units. A large amount of popular tools in the areas of Is the process of imitation of the behavior of a modeled real-world system over time.Simulation, The process of recording data from internal ECU memory and external sensors.Measurement, The process of ECU parameter tuning. Tests with ECU hardware and software in the loop are carried out. ECU internal variables and external sensor data is recorded and analyzed. The values of internal ECU parameters are determined as a result of this process.Calibration and test automation are compliant to ASAM standards. Compliance shall guarantee interoperability of tools from different vendors, allow data exchange without the need for converters, and facilitate the exchange of unambiguous A document, which describes in detail the interfaces and behavior of a technical system for the purpose of implementing, integrating and operating the system.Specification between customers and suppliers.
Founded in 1998 as a German association, ASAM has today more than 200 international members, including major OEMs in Germany, France, Great Britain, US, Japan, and China. ASAM has a portfolio of 24 standards among them the well established Measurement, Calibration and DiagnosticsMCD (measuring, The process of ECU parameter tuning. Tests with ECU hardware and software in the loop are carried out. ECU internal variables and external sensor data is recorded and analyzed. The values of internal ECU parameters are determined as a result of this process.Calibration, The subsystem of an ECU or ECU networks, which performs error detection, handling and communication.Diagnostics)-standards with a market distribution of up to 80% worldwide. The infrastructural standards of ASAM are used by many of the big international Original Equipment ManufacturerOEM
