CN-113997944-B - System and method for detecting vehicle sensor errors

Abstract

The error sensing system according to an exemplary embodiment includes a vehicle configured to include a sensor that acquires a sensed value for determining a tire pressure, and a server configured to perform a first filter and a second filter on the sensed value received from the vehicle to determine whether the sensor is aged or failed based on the second filtered sensed value and to transmit a determination result to the vehicle, and may improve performance of tire pressure determination logic by determining whether the vehicle is aged or failed based on the sensed value of the vehicle, and may propose logic design criteria.

Inventors

• Jia Hanxuan
• Zhao Junsang
• XU XIANDONG
• Lian Mingji
• JIANG ZHOUYONG

Assignees

• 现代自动车株式会社
• 起亚自动车株式会社

Dates

Publication Date

20260508

Application Date

20201027

Priority Date

20200727

Claims (18)

1. 1. An error sensing system for a vehicle sensor, the system comprising: a vehicle configured to include a sensor that acquires a sensed value for determining tire pressure, and A server configured to perform first filtering and second filtering on a sensed value received from the vehicle to determine whether the sensor is aged or failed based on the second filtered sensed value, and to transmit a determination result to the vehicle; Wherein the server is configured to: calculating a first offset based on the second filtered collected sensed values; calculating a second offset based on the same vehicle model, and When the first offset is out of a normal determination range, it is determined whether the sensor is aged or failed based on a determination result that whether the first offset is out of an entire trend range set based on the second offset.
2. 2. The error sensing system of claim 1, wherein: the sensing values include a first sensing value acquired immediately after the start of the vehicle and a second sensing value acquired immediately before the shut-down of the vehicle start.
3. 3. The error sensing system of claim 1, wherein, The server is configured to: the first filtering is performed so as to collect a sensed value obtained by traveling on a traveling route having the same starting point and destination from among sensed values received from the vehicle.
4. 4. The error sensing system of claim 1, wherein, The server is configured to: The second filtering is performed so as to collect sensed values obtained by excluding values greater than the upper neighboring value UAV and less than the lower neighboring value LAV from the sensed values collected after the first filtering.
5. 5. The error sensing system of claim 4, wherein, The server is configured to: and sending a message for causing a Tire Pressure Monitoring System (TPMS) button to stop operating and checking to the vehicle, wherein the server sends values which are larger than the Upper Adjacent Value (UAV) and smaller than the Lower Adjacent Value (LAV) in the second filtered collected sensing values.
6. 6. The error sensing system of claim 4, wherein, The server is configured to: When the first offset is out of a normal determination range and out of an entire trend range set based on the second offset, it is determined that the sensor is malfunctioning.
7. 7. The error sensing system of claim 6, wherein, The server is configured to: When it is determined that the sensor has failed, a message for causing the operation of the tire pressure monitoring system TPMS button to stop and check is transmitted to the vehicle for which the sensor is determined to have failed.
8. 8. The error sensing system of claim 4, wherein, The server is configured to: the sensor is determined to be aged when the first offset is outside a normal determination range and not outside an entire trend range set based on the second offset.
9. 9. The error sensing system of claim 8, wherein, The server is configured to: when it is determined that the sensor is aged, a normal determination range of the vehicle in which the sensor is determined to be aged is changed based on the second offset.
10. 10. A false sensing method for a vehicle sensor, the method comprising: acquiring a sensing value of a sensor for determining a tire pressure of a vehicle; performing a first filtering and a second filtering on the sensed value received from the vehicle, and Determining whether the sensor is aged or malfunctioning based on the second filtered sensed value, and transmitting a determination result to the vehicle; wherein the method further comprises: calculating a first offset based on the second filtered collected sensed values; calculating a second offset based on the same vehicle model, and When the first offset is out of a normal determination range, it is determined whether the sensor is aged or failed based on a determination result that whether the first offset is out of an entire trend range set based on the second offset.
11. 11. The error sensing method of claim 10, wherein, The sensing values include a first sensing value acquired immediately after the start of the vehicle and a second sensing value acquired immediately before the shut-down of the vehicle start.
12. 12. The error sensing method of claim 10, wherein, In performing the first filtering and the second filtering, The first filtering is performed so as to collect a sensed value obtained by traveling on a traveling route having the same starting point and destination from among sensed values received from the vehicle.
13. 13. The error sensing method of claim 10, wherein, In performing the first filtering and the second filtering, The second filtering is performed so as to collect sensed values obtained by excluding values greater than the upper neighboring value UAV and less than the lower neighboring value LAV from the sensed values collected after the first filtering.
14. 14. The error sensing method of claim 13, wherein, After the second filtering, a message for causing a tire pressure monitoring system TPMS button operation to stop and check is sent to the vehicle and a value greater than the upper adjacent value UAV and less than the lower adjacent value LAV is sent.
15. 15. The error sensing method of claim 13, wherein, When the first offset is out of a normal determination range and out of an entire trend range set based on the second offset, it is determined that the sensor is malfunctioning.
16. 16. The error sensing method of claim 15, wherein, When it is determined that the sensor has failed, a message for causing the operation of the tire pressure monitoring system TPMS button to stop and check is transmitted to the vehicle for which the sensor is determined to have failed.
17. 17. The error sensing method of claim 13, wherein, The sensor is determined to be aged when the first offset is outside a normal determination range and not outside an entire trend range set based on the second offset.
18. 18. The error sensing method of claim 17, wherein, When it is determined that the sensor is aged, a normal determination range of the vehicle in which the sensor is determined to be aged is changed based on the second offset.

Description

System and method for detecting vehicle sensor errors Technical Field The present invention relates to an error sensing system and an error sensing method for a vehicle sensor. Background Management of tire pressure is very important for safe running of a vehicle, and therefore, an indirect tire pressure monitoring system (tire pressure monitoring system, TPMS) technology is being developed that provides tire pressure information by using an on-vehicle sensor. The indirect TPMS may indicate whether the tire has a low pressure by calculating a relative change amount based on the normal pressure. Here, the normal pressure may be stored by the user inputting the setting button, and may be learned by learning the running process. The indirect TPMS may acquire the dynamic rolling radii of the four wheels and the tire resonance frequency calculated during learning, and may determine the low pressure of the tire by comparing the dynamic rolling radii of the four wheels and the tire resonance frequency during actual running. However, even in the case of abnormal pressure, the user may operate the set button, and when the sensor ages or malfunctions, it is possible to determine the tire pressure by an erroneous sensed value, thereby deteriorating the performance of the determination logic. The above information disclosed in this background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not form the prior art that is already known in this country to a person of ordinary skill in the art. Disclosure of Invention The present invention has been made in an effort to provide an error sensing system and an error sensing method for a vehicle sensor capable of preventing performance degradation of tire pressure determination logic by determining aging or malfunction of the vehicle sensor based on a sensed value of the vehicle. Technical objects of the present invention are not limited to the above objects, and other technical objects not mentioned can be clearly understood by those skilled in the art based on the description of the claims. An exemplary embodiment of the present invention provides an error sensing system for a vehicle sensor, including a vehicle configured to include a sensor that acquires a sensed value for determining a tire pressure, and a server configured to perform first filtering and second filtering on the sensed value received from the vehicle to determine whether the sensor is aged or failed based on the second filtered sensed value, and to transmit a determination result to the vehicle. The sensed values may include a first sensed value acquired immediately after the start of the vehicle and a second sensed value acquired immediately before the start of the vehicle is shut down. The server may perform the first filtering so as to collect a sensed value obtained by traveling on a traveling route having the same starting point and destination from among the sensed values received from the vehicle. The server may perform the second filtering so as to collect sensed values obtained by excluding values greater than the upper neighboring value UAV and less than the lower neighboring value LAV from the sensed values collected after the first filtering. . The server may send a message to the vehicle for causing the TPMS button to stop operating and checking, the server sending values greater than the UAV and less than the LAV from among the second filtered collected sensed values. The server may calculate the first offset based on the second filtered collected sensed values. The server determines that the sensor has failed when the first offset is outside the normal determination range and outside the entire trend range set based on the second offset calculated from the same vehicle model. When it is determined that the sensor is malfunctioning, the server may transmit a message for causing the operation of the TPMS button to stop and check to the vehicle for which the sensor is determined to be malfunctioning. The server may determine that the sensor ages when the first offset is outside a normal determination range and not outside an entire trend range set based on the second offset calculated from the same vehicle model. When determining that the sensor is aged, the server may change a normal determination range of the vehicle in which the sensor is determined to be aged based on the second offset. An exemplary embodiment of the present invention provides an error sensing method for a vehicle sensor, including acquiring a sensing value of the sensor for determining a tire pressure of a vehicle, performing first and second filtering on the sensing value received from the vehicle, and determining whether the sensor is aged or failed based on the second filtered sensing value, and transmitting the determination result to the vehicle. The sensed values may include a first sensed value acquired immediately after the start