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Technical Paper

Software-Based Vehicle Dynamic Power Management System

A Power Management System is currently being researched and developed at the Centre for Automotive Research based at Waterford Institute of Technology, Ireland, to monitor, control and reduce the electronic power consumption of the 12/14V and 36/42V systems in modern and future vehicles. Over the last 40 years the growth in electronic power consumption in vehicles has risen due to customers' demands for built-in safety features such as Air Bags, ABS and Traction Control, and also comfort and convenience features such as Air Conditioning, Heated Seats and Navigation Systems. Now the introduction of new electronic systems such as X-By-Wire, stricter regulations for fuel emissions, as well as an increased demand for fuel economy, are stretching the capabilities of the current electrical system. Automotive manufacturers are trying to solve this problem in several ways, such as the introduction of 36/42V systems, the introduction of new power sources and the use of MOSFETs.
Technical Paper

Experiences with the ODX Diagnostic Database Standard

ODX (Open Diagnostics data eXchange) is a standard diagnostic data format specified by the European ASAM group, to simplify the exchange of vehicle diagnostic data between manufacturers, suppliers and service dealerships. The ODX database contains diagnostic data for the whole vehicle together with details of all vehicle ECUs. This paper gives an overview of the main categories of data contained in the ODX diagnostic database. A Windows-based diagnostic application was developed to execute ISO 15765 diagnostic services on ECUs, using an ODX database to define the allowed services and parameters for each ECU. The paper describes the structure of the diagnostic application and the steps that were necessary to process the ODX and tailor it to a production ECU.