The reliability of energy supply for safety-related loads in high voltage vehicle electrical systems poses a particular challenge. On the one hand, they must always be supplied with a sufficiently high voltage. On the other hand the high-voltage power supply setup is much more complex compared to conventional 14 V electrical systems due to numerous safety features to protect against the high voltage level and thus there is a significantly higher risk of a breakdown. To minimize this risk and to make the high-voltage power supply sufficiently more reliable for safety-related systems, measures are needed that make the resulting complexity manageable and which match the safety requirements of a high-voltage system with the required reliability. To develop such measures, an analysis of a generic high-voltage topology is performed. This allows a systematic examination of the causes of failure of safety-critical systems due to insufficient energy supply. Using the results of the analysis, the challenges when high-voltage safety encounters reliability are identified. Possible solutions, requirements and technologies which are suitable for increasing the reliability will be identified, developed and compiled into a catalog of measures based upon this.
Integration of safety-critical loads in high-voltage vehicle electrical systems
2012
12 Seiten, 10 Bilder, 1 Tabelle, 3 Quellen
Conference paper
English
Integration of safety-critical loads in high-voltage vehicle electrical systems
Automotive engineering | 2012
|Dual/High Voltage Vehicle Electrical Systems
SAE Technical Papers | 1991
|Dual/high voltage vehicle electrical systems
Automotive engineering | 1991
|Dual/high voltage vehicle electrical systems
Tema Archive | 1991
|