Hardware-in-Loop Ego-Machine Simulation for Ambient Display Visibility
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Solution Overview
Problem
Conventional vehicle simulation technologies fail to accurately simulate real-world conditions, particularly how ambient lighting affects display visibility in vehicles, leading to potential safety risks and inaccurate simulations.
Innovation Solution
Integrate real-world ego-machine hardware components, such as In-Vehicle Infotainment (IVI) systems, with a simulated environment to generate realistic display data, including ambient lighting adjustments and user interactions, creating a virtual representation that mimics the real-world experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional simulation technologies are used, then simulation cost is reduced and safety risks are avoided, but simulation accuracy and realism deteriorate
Solution Approach 1:
The simulation system is segmented into multiple independent components: real hardware components (ECU, display devices, sensors) are separated from the virtual environment, allowing each to be tested and validated independently while maintaining their individual integrity and functionality
Solution Approach 2:
A hardware-in-loop interface acts as an intermediary between the real hardware components and the virtual simulation environment, enabling bidirectional data flow and control signals while maintaining system modularity and reducing direct integration complexity
2Reliability
If real-world hardware components are integrated with simulated environment, then simulation realism is improved, but system complexity increases
Solution Approach 1:
The simulation platform is designed with universal interfaces and protocols that allow different real hardware components (ECUs, displays, sensors) to be integrated into the same virtual environment through standardized connection methods, reducing integration complexity
Solution Approach 2:
Real hardware components are replicated in the virtual environment through digital twins and model representations, allowing the system to simulate realistic hardware behavior without requiring physical duplication of every component
3Illumination intensity
If conventional simulation methods are used, then computational resources are conserved, but lighting and display realism deteriorate
Solution Approach 1:
The system applies partial realism by focusing computational resources on specific critical aspects (lighting conditions, display visibility) while using simplified models for less critical elements, achieving realistic lighting effects without simulating every physical phenomenon in full detail
Data Source
AI summary
Embodiments of the present disclosure relate to hardware-in-loop (HIL) ego-machine simulation. In various examples, one or more real-world ego-machine hardware components are integrated with a simulated or emulated environment, such as a virtual digital twin ego-machine cockpit, for testing or other use cases. HIL ego-machine simulation may thus subject the one or more hardware components to simulated realistic data and interactions the hardware components would experience in its intended real-world operational environment. Therefore, various aspects involve the use of simulated functionality and real-world ego-machine hardware to create and/or update a virtual representation of an ego-machine that closely resembles its real-world counterpart, which improves the accuracy of simulation technologies.