# US 2025/0148834 A1 · Gas leakage detection in a vehicle tire > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0148834 A1 - Document ID: US20250148834A1 - Status: Published application - Kind: A1 - Application number: 18/921,089 - Filed: 2024-10-21 - Published: 2025-05-08 - Earliest claimed: 2023-11-06 - Assignees: Volvo Truck Corporation - Applicants: Volvo Truck Corporation - Inventors: Lennart Cider; Emil Pettersson - Web page: https://patentgrep.com/patent/US20250148834A1 ## CPC - B60C 23/0476: {Temperature compensation of measured pressure values} - G07C 5/006: {Indicating maintenance} - B60C 23/0408: {transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver} - B60C 23/0486: {comprising additional sensors in the wheel or tyre mounted monitoring device, e.g. movement sensors, microphones or earth magnetic field sensors} - G07C 5/0825: {using optical means} - B60C: VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES - G07C: TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE ## Abstract A computer system comprising processing circuitry configured to determine that a gas leakage is present in a vehicle tire in response to a difference between a first value indicative of a gas amount in the vehicle tire at a first point in time, and second value indicative of a gas amount in the vehicle tire at a second point in time being above a predetermined threshold limit, and transmit data to perform a responsive action in response to the determined gas leakage. ## Claims ### Claim 1 A computer system comprising processing circuitry configured to: receive sensor data of a first gas pressure level and a first gas temperature level of a gas in a vehicle tire at a first point in time; calculate a first value indicative of a gas amount contained in the tire at the first point in time, the first value being calculated in response to the first gas pressure level and the first gas temperature level; receive sensor data of a second gas pressure level and a second gas temperature level of the gas in the vehicle tire at a second point in time, the second point in time being subsequent to the first point in time; calculate a second value indicative of a gas amount contained in the tire at the second point in time, the second value being calculated in response to the second gas pressure level and the second gas temperature level; determine that a gas leakage is present in the vehicle tire in response to a difference between the first and second values being above a predetermined threshold limit; and transmit data to perform a responsive action in the form of transmitting an alarm message to a display arranged inside a vehicle provided with the vehicle tire in response to the determined gas leakage, wherein the alarm message causes the display to indicate a maintenance event to the operator of the vehicle in response to the difference between the first and second values being within a first predetermined range above the predetermined threshold limit, and wherein the alarm message causes the display to indicate a vehicle stop event to the operator of the vehicle in response to the difference between the first and second values being above the first predetermined range above the predetermined threshold limit. ### Claim 2 (depends on 1) The computer system of claim 1, wherein the processing circuitry is configured to receive the sensor data at the second point in time at a predetermined time difference from the first point in time. ### Claim 3 (depends on 1) The computer system of claim 1, wherein the gas amount at the first point in time being a first number of gas molecules contained in the vehicle tire, and the gas amount at the second point in time being a second number of gas molecules contained in the vehicle tire. ### Claim 4 (depends on 1) The computer system of claim 1, wherein the processing circuitry is configured to determine that a gas leakage is present in the vehicle tire in response to the second value being lower than the first value by the predetermined threshold limit. ### Claim 5 (depends on 1) The computer system of claim 1, wherein the processing circuitry is configured to continuously receive the sensor data for a predetermined time period of operation of a vehicle provided with the vehicle tire. ### Claim 6 (depends on 5) The computer system of claim 5, wherein the second point in time is an instant point in time subsequent to the first point in time, the processing circuitry being configured to determine that the gas leakage is present in the vehicle tire in response to a sudden difference between the first and second values being above the predetermined threshold limit. ### Claim 7 (depends on 1) A vehicle comprising the computer system of claim 1. ### Claim 8 (depends on 7) The vehicle of claim 7, wherein the sensor data is received from at least one sensor connected to the vehicle tire. ### Claim 9 (depends on 8) The vehicle of claim 8, wherein the at least one sensor is a pressure sensor and a temperature sensor. ### Claim 10 A computer-implemented method, comprising: determining, by processing circuitry of a computer system, a first gas pressure level and a first gas temperature level of a gas in a vehicle tire at a first point in time; calculating, by the processing circuitry, a first value indicative of a gas amount contained in the tire at the first point in time, the first value being calculated in response to the first gas pressure level and the first gas temperature level; determining, by the processing circuitry, a second gas pressure level and a second gas temperature level of the gas in the vehicle tire at a second point in time, the second point in time being subsequent to the first point in time; calculating, by the processing circuitry, a second value indicative of a gas amount contained in the tire at the second point in time, the second value being calculated in response to the second gas pressure level and the second gas temperature level; determining, by the processing circuitry, that a gas leakage is present in the vehicle tire in response to a difference between the first and second values being above a predetermined threshold limit; and transmitting, by the processing circuitry, data to perform a responsive action in the form of transmitting an alarm message to a display arranged inside a vehicle provided with the vehicle tire in response to the determined gas leakage, wherein the alarm message causes the display to indicate a maintenance event to the operator of the vehicle in response to the difference between the first and second values being within a first predetermined range above the predetermined threshold limit, and wherein the alarm message causes the display to indicate a vehicle stop event to the operator of the vehicle in response to the difference between the first and second values being above the first predetermined range above the predetermined threshold limit. ### Claim 11 (depends on 10) A computer program product comprising program code for performing, when executed by the processing circuitry, the method of claim 10. ### Claim 12 (depends on 10) A non-transitory computer-readable storage medium comprising instructions, which when executed by the processing circuitry, cause the processing circuitry to perform the method of claim 10.