Intelligent engine cold test NVH flexible detection system

By using a six-axis collaborative robot and a big data AI analysis platform in conjunction with a spring-contact acceleration vibration sensor during engine cold testing, precise positioning and adaptive measurement of multiple engine models were achieved. This solved the problems of the single nature of traditional cold testing equipment and reliance on manual labor, and improved the timeliness of fault identification and production efficiency.

CN224398984UActive Publication Date: 2026-06-23JIANGLING MOTORS
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGLING MOTORS
Filing Date
2025-06-26
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Traditional cold-test online testing equipment is limited in its ability to detect abnormal noises in the entire engine and relies heavily on human experience. This makes it difficult to differentiate engine problems, resulting in untimely fault identification and high labor costs.

Method used

By employing a six-axis collaborative robot equipped with a spring-contact accelerometer vibration sensor and combining big data and artificial intelligence technologies, precise positioning and adaptive measurement of engines of multiple models can be achieved. Feature extraction and fault mode identification are performed through time-series vibration data to build a highly generalized diagnostic model, enabling automatic identification and differentiated alarms for abnormal curves.

Benefits of technology

It improves the completeness and accuracy of engine vibration signal acquisition, reduces reliance on manual experience, enhances the timeliness and production efficiency of fault interception, supports multi-model compatibility testing, and optimizes production costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224398984U_ABST
    Figure CN224398984U_ABST
Patent Text Reader

Abstract

The utility model relates to the field of automobile manufacturing, concretely relates to a kind of intelligent engine cold test NVH flexible detection system.The test system includes test bench, the test bench horizontal frame and vertical frame are fixed installation, six-axis collaborative robot is respectively arranged in the horizontal direction and vertical direction of test bench, spring contact type acceleration vibration sensor is carried at the end of robot;Six-axis collaborative robot, spring contact type acceleration vibration sensor are electrically connected to PLC control system, the PLC control system is connected to engine wire harness and connector;The PLC control system is connected to big data AI analysis platform.The utility model will flexible robot system, high sensitivity vibration sensor network and big data AI analysis platform be organically integrated, form complete intelligent cold test solution.Support multi-model compatible test under mixed-line production scene, realize efficient, accurate NVH detection and fault trace by robot automatic adjustment and data intelligent analysis, optimize production efficiency and cost.
Need to check novelty before this filing date? Find Prior Art