An automatic detection system for operating temperature of a thermostat based on temperature sensor

By reconstructing the temperature field around the thermostat using a miniature ultrasonic transducer array and computational fluid dynamics algorithms, the problem of insufficient detection accuracy of traditional sensors is solved, enabling high-precision thermostat condition monitoring and fault diagnosis.

CN122108387APending Publication Date: 2026-05-29NINGBO LIBOLAI AUTO PARTS TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NINGBO LIBOLAI AUTO PARTS TECH CO LTD
Filing Date
2026-03-04
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Traditional single-point contact temperature sensors suffer from thermal inertia, measurement blind zone, and flow field cavitation effect when detecting thermostats, resulting in insufficient detection accuracy and robustness, and making it difficult to accurately capture the temperature change at the moment the thermostat opens.

Method used

By combining a miniature ultrasonic transducer array with computational fluid dynamics algorithms, the temperature field distribution of the coolant is obtained through ultrasonic signals, a two-dimensional or three-dimensional temperature distribution cloud map is reconstructed, the operating status of the thermostat is identified by combining temperature gradient features, and performance analysis is performed through a data storage and analysis server.

Benefits of technology

It achieves panoramic, non-invasive sensing of the coolant temperature field around the thermostat, eliminates measurement errors, improves the accuracy and robustness of detection, provides reliable data support, and provides technical support for the quality control and fault diagnosis of automotive thermal management systems.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122108387A_ABST
    Figure CN122108387A_ABST
Patent Text Reader

Abstract

The application relates to the technical field of automobile thermal management system detection and temperature sensor, and particularly discloses an automatic detection system for the working temperature of a thermostat based on a temperature sensor. The system comprises a micro ultrasonic transducer array, a flow channel simulation device, a virtual thermal flow field reconstruction unit, a thermostat state judgment unit and a data storage and analysis server; the ultrasonic array is used to obtain the sound wave propagation time in the cooling liquid, a two-dimensional or three-dimensional temperature distribution cloud picture around the thermostat is reconstructed by combining a computational fluid dynamics algorithm, and the matching of the opening critical point of the thermostat and the preset threshold value is judged based on the temperature gradient mutation characteristics. By adopting the above technical scheme, the non-invasive, high-precision and panoramic detection of the action temperature of the thermostat can be realized, the detection accuracy and robustness are improved, and a reliable quality control means is provided for the automobile thermal management system.
Need to check novelty before this filing date? Find Prior Art