Design of a Vehicle-level Test System for In-vehicle Emergency Call System

The in-vehicle emergency call system has the ability to decrease the waiting time for assistance following a car crash, resulting in a decreased fatality rate for road accidents. According to domestic and international regulations, it is necessary for the system to undergo comprehensive testing to ensure its reliability prior to being utilized in vehicles. The whole vehicle triggering characteristics serve as the final evaluation in the certification process, requiring strict testing and verification to guarantee the technology's maturity and dependability. This paper presents a vehicle-level test system designed to meet vehicle-level test requirements. The system was tested from four perspectives, including in-vehicle system (IVS) triggering characteristics, minimum set of data (MSD) correctness, positioning accuracy, and voice call quality. The experimental results indicate that the testing system effectively tests the whole vehicle triggering characteristics of the in-vehicle emergency call system, thereby confirming its efficacy. The testing system can offer a budget-friendly and productive emergency call (eCall) certification testing solution to automobile companies. Additionally, it can provide substantial technical and data support for the creation of mandatory standards in China. Consequently, it promotes the expansion of related domains in China.