This paper presents innovative methods to enhance system simulation for off-highway machinery by integrating 3D environmental interaction. A specialized surface contacts library enables realistic modeling of machine-ground contact on uneven terrain, allowing for improved testing of driving maneuvers, trajectory planning and drivetrain efficiency. Additionally, a data distribution service (DDS) interface facilitates seamless communication between simulation tools and 3D environments, enabling virtual testing of automation algorithms, obstacle detection and sensor-based control. These advances significantly broaden the scope of system simulation, making it a powerful tool for developing smarter, safer and more efficient construction machinery.

• Integrate 3D terrain modeling into off-highway machine simulations for realism
• Apply contact physics to improve drivetrain efficiency and operator comfort on uneven terrain
• Enhance virtual testing with models for sensor-based environment detection techniques
• Use DDS for seamless data exchange between simulation tools and 3D environments such as Unity
• Develop, optimize and test automation algorithms with real-time co-simulation in complex scenarios