Monitoring Systems for Tire Performance

A tire wear estimation system that accurately and reliably estimates tire wear state using easily obtained and accurate parameters, and which can operate independently of the vehicle CAN bus. The system involves mounting sensors on the tire to measure footprint length and shoulder length, as well as tire pressure and temperature. This data, along with tire identification, is used to predict tire wear using an analysis module.

Source

Power-saving tire pressure monitoring system that reduces energy consumption by intelligently controlling the sensor operation based on vehicle acceleration and time of day. The system has a microcontroller that monitors sensors like pressure, temperature, and acceleration. It uses a real-time clock to determine the time and day. The microcontroller puts the sensor system into a sleep state when the vehicle is stationary or at night to save power. It wakes up the sensors when acceleration indicates driving or it's daytime. This allows the system to operate without affecting the warning function while minimizing power consumption.

Source

Monitoring device and method for detecting internal temperature of dangerous spots in mining tires to prevent blowouts and damage. The device involves installing an intelligent tire sensor inside the tire lining. It connects to a vehicle terminal. The method involves monitoring the sensor readings to detect abnormal temperatures in critical areas like belt joints. Early warning and remote alarm are provided to prevent tire failures. This addresses limitations of surface temperature monitoring, lack of internal sensors, and manual intervention.

Source

Intelligent tire monitoring system for vehicles that provides accurate tire performance monitoring and optimization to improve safety, comfort, and longevity of tires. The system uses separate modules for driving and non-driving wheels that monitor parameters like pressure, temperature, acceleration, and sound. It alerts to abnormal wear, tread status, and overload. The system can adjust tire parameters like pressure and temperature based on conditions to optimize performance. It also predicts tire safety, comfort, and grip in scenarios like wet roads or snow. This customized parameter feedback allows active tire tuning for optimal performance in various conditions.

Source

Tire pressure monitoring system for vehicles with multiple tires that improves reliability for long wheelbase vehicles with distant tires. The system uses a master sensor near the vehicle's electronics and slave sensors further out. The master initiates tire pressure sensing and commands the slaves to measure. The slaves transmit data wirelessly to the master which then sends it to the central processing unit. This reduces attenuation compared to direct transmission from faraway sensors. If a sensor detects a fault, it sends an alert on a separate frequency to avoid interference.

Source

Handheld device for quickly analyzing tire condition by capturing detailed images of the tread, sidewalls, and other tire features. The device uses cameras and sensors to create 3D models of the tire surface, measure tread depth, and detect anomalies. It provides real-time feedback and warnings for wear, damage, alignment issues, etc.

Source

A tire pressure detection system with separated antennas that can transmit tire pressure data to vehicle systems and personal devices like smartphones. The system uses both radio frequency (RF) and Bluetooth signals from separate antennas in the tire pressure sensors. The RF antenna transmits to the vehicle's tire-pressure monitoring system, while the Bluetooth antenna transmits to external devices like smartphones. This eliminates the need for a separate signal converter in the vehicle and allows a direct display of tire pressure on personal devices.

Source

Estimating tire wear using tire-mounted sensors and predictive models to provide accurate and reliable estimation of tire wear. The system uses tire sensors to generate one predictor of wear, and a lookup table or database to provide a second predictor including vehicle effects. These predictors are input into a model like an Artificial Neural Network to estimate tire wear rate.

Source

Automatic tire pressure monitoring system that tops up vehicle tires when they are under-inflated. It uses pressure sensors in the wheels to monitor tire pressure and a compressor to add air when needed. When a tire is below a safe level, the system activates the compressor to fill it to the proper pressure and maintain it there. The driver is warned if any tires are low.

Source

A retightening notification system that alerts vehicle users to retighten wheel bolts. It uses a travel distance sensor to track how far a vehicle has traveled since the wheels were last tightened. When this distance exceeds a threshold specific to the vehicle, it triggers a notification to retighten the wheel bolts. This prevents loose bolts from causing wheels to come off while driving.

Source

A system that predicts tire wear to enable proactive fleet management tasks like maintenance and replacements. The system uses a hierarchical data structure to aggregate historical tire tread values based on various parameters like vehicle, tire model, driver, route, etc. When current tread values are provided, the system matches them with similar historical values to predict wear rates.

Source

Tire-pressure monitoring system with automatic tire positioning for vehicles. The system uses phase angle differences between tire sensors and receiver antennas to accurately determine the horizontal and longitudinal positions of tires on a vehicle. This allows the tire sensors to be automatically positioned after installation without manual input or calibration.

Source

A tire sensor assembly combined with an internal wheel balancer for vehicle tires. The assembly includes a tire sensor like a TPMS system along with an internal wheel balancer belt containing loose balancing media like steel shot. The sensor and balancer are combined inside the tire to provide monitoring and balancing functions in one unit. The balancer belt extends around the tire circumference and includes couplers to join the ends. The interior cavity holds the balancing media.

Source

A method for checking vehicle tire pressure using sensors on the vehicle body to detect vibrations and oscillations when a person enters the vehicle. The vehicle body vibrations are analyzed in the frequency domain to identify natural resonant frequencies. These resonant frequencies are compared to reference values determined at the proper tire pressure. Deviations in the frequency response indicate a change in tire pressure, such as a puncture or leak, which could affect roadworthiness.

Source

Device for rotating and inspecting vehicle tires to prevent flat spots when parked for extended periods. The device has a housing with a ramp and depression on the upper surface. Multiple devices are arranged on the floor and a vehicle can drive onto them so the tires rest in the depressions. This lifts the tires off the ground to prevent flat spotting.

Source

Handheld device and method for obtaining a 3D profile of a tire surface to inspect tread depth, tire wear, alignment, and other characteristics. The device projects a pattern of light onto the tire surface, images the pattern using a camera as it rolls over the tire on guide wheels, and uses rotation encoding to build a 3D topological profile of the tire.

Source

A tire with an embedded RFID tag that allows long-range wireless tracking of the tire. The tire has a separate cover layer over the RFID tag that contains insulating and reinforcing fillers and has a resistance of 107 ohm-meters or higher. This cover effectively protects the RFID tag from physical and mechanical impacts while increasing the radio wave recognition distance compared to unmodified rubber.

Source

Assisting in fitting a tire on a wheel rim before assembly on a vehicle to avoid RFID tag interference using a tire fitting system. The system determines the location of the RFID tag on the tire and the location of the air valve on the rim. It provides alignment instructions to align the tire on the rim so the RFID tag lines up with the valve stem. This ensures consistent alignment to avoid interference when mounted.

Source

A system for properly pairing tire sensors and RFID tags when fitting tires to wheels to avoid confusion in noisy environments like tire fitting centers. The system receives the RFID tag ID and multiple tire sensor signals from the fitted wheels. It uses the sensor status information indicating how they were activated to determine which sensor is associated with the RFID tag. It can also check activation times to further discriminate between sensors.

Source

A method to detect a change in the location of vehicle wheels using existing tire pressure monitoring systems (TPMS) that have wheel units on each tire and a central unit. The method involves emitting and recording patterns of messages from the central unit to each wheel unit when the vehicle is running. These patterns are then compared over time to see if the wheel location has changed.

Source