Mercedes-Benz Actros, Antos and Arocs

Developing the cab side module for the Actros, Antos and Arocs

Bertrandt supports the development of the new range of Daimler trucks January 2010 to October 2013, our engineers designed and developed complex components for the cab side module of the new range of heavy-duty trucks. The majority of the work was carried out by the vehicle body development department.

25 years’ experience of truck development – Bertrandt and a partner take responsibility for project management

The services that we provided included virtual CAD development of the external components, such as panels, toolbox, wheel arch extensions and top and bottom steps with tread plates, using CATIA 5. Our involvement began during the concept phase and continued through pre-production and production design, tolerance management and the creation of functional models and prototype tools to support the development process. The wide variety of materials used, such as SMC, thermoplastics, PUR-RIM and steel, presented a challenge for our team’s design skills. Working together with a partner, our engineers were responsible for managing the project, which included coordinating with all the relevant technical departments in Untertürkheim and at the production site in Wörth.

Our role also involved project support activities, for example creating presentation documents for decision-making meetings and preparing drawings of individual parts, assemblies and arrangements. The creation of a monitoring function within the team enabled us to ensure that the drawings met the client’s high quality standards.

Modular system – the key difference from car development

The design process is different from that of a car body, because the very large number of variants of truck models puts greater demands on the entire project team. In contrast to a car, there is not just one wheel arch, but several different versions as a result of the varying chassis designs, cab variants, body heights and tyres. The challenge lies in using identical parts wherever possible, despite the different models. In consequence, if a component is improved, for example, by changing a bolted joint on the basis of test results, all the variants of that component also have to be modified. The task of our team was to evaluate the impact of an improvement of this kind on all the different versions of the parts at an early stage and to implement the change efficiently.

Successful cooperation between all the participants

Our engineers took up the challenge and provided Daimler with development support services for this exciting project in close collaboration with our partner. We would like to thank everyone involved for their friendly cooperation.