A dynamic wheel load measurement system for the formula student race car

Tianyi Zeng; Zeyu Liu; Haotian Chen; Xinbo Chen

doi:10.1117/12.2689594

7 September 2023 A dynamic wheel load measurement system for the formula student race car

Tianyi Zeng, Zeyu Liu, Haotian Chen, Xinbo Chen

Proceedings Volume 12790, Eighth International Conference on Electromechanical Control Technology and Transportation (ICECTT 2023); 127900G (2023) https://doi.org/10.1117/12.2689594
Event: 8th International Conference on Electromechanical Control Technology and Transportation (ICECTT 2023), 2023, Hangzhou, China

Abstract

Wheel load data is a crucial signal for active vehicle safety and driving assistance systems, especially for future electric and smart vehicles. There have been many technical routes to determine wheel load, however, these studies suffer from high cost and complexity and have not been realized commercially. In the Formula Student Competition, the car needs to pass through many sharp corners at high speed, which puts high demands on the car’s steering characteristics. This paper focuses on the estimation method based on suspension analysis to optimize steering characteristics, which has considerable advantages such as: a) it can be performed on a non-rotating part, b) the suspension system usually serves the entire life cycle of the car, c) not only can wheel loads be measured but also suspension rod forces can be calculated. This paper proposes a novel analysis method based on suspension deformation and forces, which decouples the calculation from the known vehicle mass. The proposed method is verified by Adams Car software simulation and sensitivity analysis. The experiment results on a Formula Student race car demonstrate that the system can measure the wheel load with sufficient accuracy. In addition, wheel load data is used for the active control of the race car's anti-roll bar to give the car better performance and higher safety on the circuit.

Citation Download Citation

Tianyi Zeng, Zeyu Liu, Haotian Chen, and Xinbo Chen "A dynamic wheel load measurement system for the formula student race car", Proc. SPIE 12790, Eighth International Conference on Electromechanical Control Technology and Transportation (ICECTT 2023), 127900G (7 September 2023); https://doi.org/10.1117/12.2689594

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