Alcázar Vargas Manuel, Pérez Fernández Javier, Sánchez Andrades Ignacio, Cabrera Carrillo Juan A, Castillo Aguilar Juan J
Department of Mechanical Engineering, University of Malaga, 29071 Malaga, Spain.
Sensors (Basel). 2022 Aug 24;22(17):6380. doi: 10.3390/s22176380.
Tires play a critical role in vehicle safety. Proper modeling of tire-road interaction is essential for optimal performance of active safety systems. This work studies the influence of temperature, longitudinal vehicle speed, steering frequency, vertical load, and inflation pressure on lateral tire dynamics. To this end, a tire test bench that allows the accurate control of these parameters and the measurement of the variables of interest was used. The obtained results made it possible to propose a simple model that allowed the determination of relaxation length as a function of tire vertical load and vehicle linear speed, and the determination of a representative tread temperature. Additionally, a model has been proposed to determine the lateral friction coefficient from the aforementioned temperature. Finally, results also showed that some variables had little influence on the parameters that characterize lateral dynamics.
轮胎在车辆安全中起着关键作用。轮胎与路面相互作用的恰当建模对于主动安全系统的最佳性能至关重要。这项工作研究了温度、车辆纵向速度、转向频率、垂直载荷和充气压力对轮胎横向动力学的影响。为此，使用了一个能够精确控制这些参数并测量相关变量的轮胎试验台。所获得的结果使得能够提出一个简单模型，该模型可以根据轮胎垂直载荷和车辆线速度确定松弛长度，并确定代表性的胎面温度。此外，还提出了一个根据上述温度确定横向摩擦系数的模型。最后，结果还表明，一些变量对表征横向动力学的参数影响很小。
