The increase of the power consumption is the driving factor for the introduction of the 42-V-electrical system. The main reason for increasing the supply voltage from 14 V to 42 V is to improve the attractiveness of the car as innovations, fuel savings and comfort. First, individual loads are converted to 42 V. Examples of this is the Audi windshield heating which was introduced in the A8 in 1998. The introduction of the dual voltage 14/42 V-power network will finally lead to a pure 42 V-power network. 42 V-generators, 36 V-batteries and energy management are the basis for the 42 V-power network. The electric catalytic converter and the windshield heating are selected examples for 42 V-consumption systems that are presented in this article. Due to the increasing electrification of the vehicle functions and the resulting degree of networking, the electrical system can not be considered in isolation. The functional integration of electronics, mechanics and software can only be managed by interdisciplinary simulation tools. The simulation of the 14/42 V-power network has to be built up in a partnership between OEMs and the subcontracting industry. Based on consumer requirements, the OEMs and the subcontracting industry have to meet the 42 V load scenario and design a suitable architecture for the electrical system. In order to keep the cost gap as small as possible in the change to components with 42 V, it is necessary to standardize 42 V-components. A cooperation of individual manufacturers is the solution.
Das 42-Volt-Energienetz: Systembetrachtung und Entwicklungsprozess
the 42 V-architecture: system evaluation and future developments
2001
28 Seiten, 37 Bilder
(+ 19 S. Anh.)
Conference paper
German
Das Lenksäulenmodul mit MMI - eine Systembetrachtung
Tema Archive | 2001
|Folgerungen aus einer Systembetrachtung der Unfallanalyse
Automotive engineering | 1984
|Systembetrachtung verbessert die Fahrerhauslagerung
Tema Archive | 1999
|Kopplung zwischen Elektrofahrzeugen und elektrischem Energienetz
Springer Verlag | 2018
|