SimulationX at Daimler Trucks

SimulationX plays a crucial role for our virtual product design, sparing us difficult and costly changes in both prototypes and production vehicles.

In the development of new vehicle and drive concepts, Daimler Trucks has trusted ITI’s simulation solutions for years

The task at hand

Optimizing and safeguarding vehicle functions through simulations during the design phase

Daimler AG is one of the world’s most successful automotive companies. With its divisions Mercedes-Benz Cars, Daimler Trucks, Mercedes-Benz Vans, Daimler Buses and Daimler Financial Services, the Daimler Group is one of the biggest producers of premium cars and the world‘s biggest manufacturer of commercial vehicles with a global reach. In the development of new vehicle and drive concepts Daimler Trucks has been counting on ITI simulation solutions for many years. One of the latest applications is the design of pneumatic brake systems by using dynamic simulation.

In heavy-duty trucks the pneumatic system provides, amongst others, the energy for the braking system, the air suspension of the vehicle, the cabin, and the gearbox. 

The behavior of the equipment is defined by various factors, such as the position of the components, the installable air reservoir volume and the pipe layout, while the components in turn are determined by the vehicle packaging. Daimler’s development team strives to optimize all vehicle functions already at early development stages. For new and further developments of commercial vehicles, engineers need to be able to make accurate predictions about the behavior of the pneumatic system, especially of the brakes, prior to building a physical prototype. The final results are important for the system layout and the dimensioning and positioning of the components in order to guarantee the optimal design for the pneumatic system.

The solution

Development of pneumatic braking systems with dynamic simulations

Daimler engineers use SimulationX with the included Pneumatics library. In addition to ready-to-use standard models, the team also works with a wide range of custom-built component models of conventional and electrical braking systems. The individually designed models are then automatically integrated into existing model structures. With the modeling environment fully established, the engineers are able to convert the complete model into C code in order to retrieve the required information in a quick and efficient way. The compiled executable model can then be further used for substantial variant analyses, for example. As the code is plain ANSI C code that is not subject to any form of licensing, it can be easily compiled and run on any platform and operating system.

The benefits

Fully virtual product development in place

By combining the commercial simulation platform SimulationX with company-specific procedures to manage and analyze variation calculations, Daimler’s engineering team achieved the goal of a completely virtual product development environment. Thanks to the examination of the braking system on this virtual basis, testing efforts can be kept to a minimum. Costly and time-consuming revisions for both prototype and series vehicles are no longer an issue as the engineers are able to make principle decisions early on, for example, concerning necessary air reservoirs, pipe layouts, the position of components and the integration of results into the overall vehicle concept.

Simulation of vehicle systems

You are looking an engineering partner to face similar challenges? Get an overview of our engineering projects in the field of automotive technology.

Automotive projects