Integrated digital sensor interface: life-saving vehicle safety testing technology

In the automotive industry, vehicle testing is a crucial step that ensures key performance indicators such as power, tire efficiency, durability, and safety are thoroughly evaluated. Before mass production, manufacturers must guarantee that vehicles and their components meet high standards of safety and reliability. Vehicle OEMs and manufacturers invest significant time in testing critical physical parameters to enhance current vehicle development through data-driven evaluations. One of the first priorities in vehicle testing is ensuring accurate measurement data. To achieve this, test configurations and equipment must adhere to strict standards. As a Swiss family-owned company, Kistler has been pioneering sensor technology since 1959. With its innovative solutions, it enables precise data collection on pressure, force, torque, and acceleration. Today, Kistler's integrated measurement and data acquisition systems are widely used around the world. A key innovation in this field is Kistler’s Digital Sensor Interface (DTI) technology, which plays a vital role in modern vehicle safety testing. In crash tests, for instance, dummies equipped with sensors provide essential data on structural behavior and occupant protection. These tests help engineers understand how vehicles absorb energy during collisions and how they protect passengers. The number of sensors used in these tests has grown significantly over the years—from around 250 analog channels in the early 1990s to over 600 digital channels today. This increase highlights the need for more efficient and reliable measurement systems. The rise in sensor numbers has led to more complex setups, with traditional analog systems requiring extensive cabling for power and data transmission. This not only increases installation time but also raises the risk of errors. To address these challenges, Kistler introduced DTI technology, which simplifies the process by using a single cable for synchronization, triggering, and power. This streamlined approach reduces both time and costs while improving accuracy. At Continental Safety Engineering, Kistler’s DTI technology has been successfully integrated into their existing testing processes. Since 2015, the company has upgraded its dummy sensor systems to use DTI, allowing for faster and more efficient testing. This integration has enabled Continental to maintain high-quality standards while reducing the complexity of their testing infrastructure. Looking ahead, Kistler continues to refine its DTI technology to meet the evolving demands of vehicle testing. From crash tests to power and durability assessments, the system offers greater adaptability, improved data quality, and reduced space requirements. With automated sensor detection and user-friendly software like KiCenter, the process becomes more efficient and less error-prone. Overall, Kistler’s DTI technology represents a major advancement in vehicle testing, offering a reliable, cost-effective, and future-ready solution for automotive manufacturers and safety engineers alike.

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