Е-Публикации
Технически университет - София

Abstract: This paper introduces a multi-sensor system for monitoring the temperature distribution of the active tire tread surface and driving behavior. Tire temperature is measured using two multipixel infrared (IR) sensors (MLX90640). Driving characteristics are captured with an accelerometer-gyroscope unit (QMI8658), a magnetometer (QMC6310), and a Global Navigation Satellite System receiver (L76K). Environmental conditions are recorded by a temperature and humidity sensor (BME280). The platform is built on an ESP32 system-on-chip (SoC). The system was tested during urban driving in Sofia and on interurban trips. The paper presents representative results and preliminary analysis, including spatial temperature metrics (mean values, gradients, asymmetry across tread zones) and their relationship to kinematic signals (speed, longitudinal/lateral acceleration, yaw rate). The findings demonstrate the feasibility of combined thermal–dynamics monitoring for characterizing driving and assessing tire and vehicle conditions.

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