Intelligent engine monitoring system

The external sensor monitoring system solves the problem of the difficulty in expanding the parameters of the engine monitoring system, and achieves flexible installation and good stability of wireless sensors.

WO2026092494A1PCT designated stage Publication Date: 2026-05-07GUANGXI YUCHAI MARINE & GENSET POWER CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
GUANGXI YUCHAI MARINE & GENSET POWER CO LTD
Filing Date
2025-10-29
Publication Date
2026-05-07

AI Technical Summary

Technical Problem

Existing engine monitoring systems are difficult to expand monitoring parameters flexibly, require rewiring, and have poor stability.

Method used

An external sensor monitoring system is adopted, including a wireless receiver, a wireless smart sensor and an independent power supply module. It is connected to the ECU via the SAE J1939 bus, powered by the independent power supply module, and the data is transmitted to the diagnostic management platform and displayed on a mobile terminal.

Benefits of technology

It achieves flexibility and stability in parameter expansion, reduces workload, simplifies wiring, and is suitable for both existing and post-production machines.

✦ Generated by Eureka AI based on patent content.

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    Figure CN2025130796_07052026_PF_FP_ABST
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Abstract

An intelligent engine monitoring system, comprising an electronically controlled engine monitoring system, and further comprising an external sensor monitoring system, a diagnostic management platform, and a mobile terminal. The external sensor monitoring system comprises a standalone power module, a wireless receiver, and a wireless intelligent sensor; the wireless receiver is mounted beside an ECU of an engine and is connected to the ECU by means of a bus; the standalone power module supplies power to the wireless receiver and the wireless intelligent sensor; detection data of the wireless intelligent sensor is transmitted to the ECU by means of the wireless receiver; the ECU uploads detected parameters to the diagnostic management platform; the diagnostic management platform sends the detected parameter information to the mobile terminal by means of wireless communication.
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Description

An intelligent engine monitoring system Technical Field

[0001] This invention relates to the field of engine monitoring technology, and more specifically, to an intelligent engine monitoring system. Background Technology

[0002] The principle of engine condition monitoring is to monitor and provide feedback on key parameters through various sensors. These parameters include engine temperature, exhaust temperature, engine speed, load, oil pressure, oil quantity, and oxygen content. By detecting and analyzing these parameters, the system can promptly detect abnormal engine conditions and provide early warnings.

[0003] Existing engine electronic control and monitoring systems measure parameters through a series of sensors and then send them to the electronic control unit (ECU). The ECU monitors and adjusts various key engine parameters in real time to ensure that the engine operates in optimal condition. Once the engine leaves the factory, the parameters it needs to monitor are fixed, and due to the limited number of pins on the ECU, it is difficult to expand the parameters monitored by the ECU.

[0004] With the development of engine technology and the changing operating conditions, there are more and more parameters that need to be monitored. When traditional engine monitoring systems expand the monitoring parameters, they need to rewire and add ECU expansion modules, which is labor-intensive and has poor stability. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to address the above-mentioned shortcomings of the prior art. The purpose of the present invention is to provide an intelligent engine monitoring system that can easily expand the parameters monitored by the ECU.

[0006] The technical solution of this invention is: an intelligent engine monitoring system, including an electronic control monitoring system for the engine, an external sensor monitoring system, a diagnostic management platform, and a mobile terminal. The external sensor monitoring system includes an independent power module, a wireless receiver, and a wireless intelligent sensor. The wireless receiver is installed next to the engine's ECU and connected to the ECU via a bus. The independent power module supplies power to the wireless receiver and the wireless intelligent sensor. The detection data from the wireless intelligent sensor is transmitted to the ECU through the wireless receiver. The ECU uploads the monitored parameters to the diagnostic management platform. The diagnostic management platform sends the monitored parameter information to the mobile terminal via wireless communication.

[0007] As a further improvement, the independent power module includes a small generator and a battery. The small generator is driven by an engine belt shaft or an engine output shaft. The small generator charges the battery, and the battery powers the wireless receiver and the wireless smart sensor.

[0008] Furthermore, the independent power module is an independent battery separate from the vehicle battery, and is charged by the vehicle generator.

[0009] Furthermore, the wireless intelligent sensor includes a coolant temperature sensor, a coolant pressure sensor, an engine oil quality sensor, and a fuel quality sensor, which are respectively installed at designated detection locations.

[0010] Furthermore, the wireless receiver is connected to the OBD port of the ECU via the SAE J1939 bus.

[0011] Furthermore, the mobile terminal is a mobile phone, and the mobile phone has a mobile APP installed for communication connection with the diagnostic management platform.

[0012] Furthermore, the diagnostic management platform monitors various parameters of the engine in real time. When any parameter exceeds the standard, it sends an alarm message to the mobile terminal; when the engine maintenance is due, it sends a maintenance reminder message to the mobile terminal. Beneficial effects

[0013] Compared with the prior art, the advantages of this invention are as follows:

[0014] This invention, by setting up an external sensor monitoring system, can easily expand monitoring parameters without rewiring. The installation location of the wireless sensor is unrestricted, offering high flexibility, minimal expansion workload, simple and stable wiring, and making it very easy to expand in existing or factory-installed machines. Attached Figure Description

[0015] Figure 1 is a diagram of the architecture of the present invention. Detailed Implementation

[0016] The present invention will be further described below with reference to specific embodiments shown in the accompanying drawings.

[0017] Referring to Figure 1, an intelligent engine monitoring system includes an engine electronic control monitoring system, an external sensor monitoring system, a diagnostic management platform, and a mobile terminal. The external sensor monitoring system includes an independent power module, a wireless receiver, and wireless intelligent sensors. The wireless receiver is installed next to the engine's ECU and connected to the ECU via a bus, reducing bus length and improving transmission stability. The independent power module supplies power to the wireless receiver and the wireless intelligent sensors. Alternatively, the wireless intelligent sensors can be self-contained batteries, offering greater installation flexibility and convenience. The detection data from the wireless intelligent sensors is transmitted to the ECU via the wireless receiver. The ECU uploads the monitored parameters to the diagnostic management platform, which then transmits the monitored parameter information to the mobile terminal via wireless communication.

[0018] In one embodiment, the independent power module includes a small generator and a battery. The small generator is driven by an engine belt shaft or an engine output shaft. The small generator charges the battery, and the battery powers the wireless receiver and the wireless smart sensor.

[0019] In one embodiment, the independent power module is an independent battery separate from the vehicle battery and is charged by the vehicle generator.

[0020] Independent power modules can reduce the impact on the original vehicle battery, thereby reducing the impact on the stability of the original electronic control and monitoring system.

[0021] The wireless smart sensor system includes a coolant temperature sensor, a coolant pressure sensor, an engine oil quality sensor, and a fuel quality sensor. These sensors are installed at designated detection locations. Of course, the wireless smart sensor system can also include other sensors that provide additional monitoring parameters.

[0022] The wireless receiver connects to the ECU's OBD port via the SAE J1939 bus, ensuring good stability.

[0023] The mobile terminal is a mobile phone, which has a mobile APP installed on it for communication connection to the diagnostic management platform, allowing users to check the engine status anytime, anywhere.

[0024] The diagnostic management platform monitors various engine parameters in real time. When any parameter exceeds the standard, it sends an alarm message to the mobile terminal. When it is time for engine maintenance, it sends a maintenance reminder message to the mobile terminal.

[0025] This invention, by setting up an external sensor monitoring system, can easily expand the monitoring parameters and can be easily expanded in existing machines or machines manufactured after delivery.

[0026] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of the present invention, and these will not affect the effectiveness of the implementation of the present invention or the practicality of the patent.

Claims

1. An intelligent engine monitoring system, comprising an electronic control monitoring system for the engine, characterized in that, It also includes an external sensor monitoring system, a diagnostic management platform, and a mobile terminal. The external sensor monitoring system includes an independent power module, a wireless receiver, and a wireless smart sensor. The wireless receiver is installed next to the engine's ECU and connected to the ECU via a bus. The independent power module supplies power to the wireless receiver and the wireless smart sensor. The detection data from the wireless smart sensor is transmitted to the ECU through the wireless receiver. The ECU uploads the monitored parameters to the diagnostic management platform, and the diagnostic management platform sends the monitored parameter information to the mobile terminal via wireless communication.

2. The intelligent engine monitoring system according to claim 1, characterized in that, The independent power module includes a small generator and a battery. The small generator is driven by an engine belt shaft or an engine output shaft. The small generator charges the battery, and the battery powers the wireless receiver and the wireless smart sensor.

3. The intelligent engine monitoring system according to claim 1, characterized in that, The independent power module is an independent battery separate from the vehicle battery, and is charged by the vehicle generator.

4. The intelligent engine monitoring system according to claim 1, characterized in that, The wireless smart sensor includes a coolant temperature sensor, a coolant pressure sensor, an engine oil quality sensor, and a fuel quality sensor, which are respectively installed at designated detection locations.

5. The intelligent engine monitoring system according to claim 1, characterized in that, The wireless receiver is connected to the OBD port of the ECU via the SAE J1939 bus.

6. The intelligent engine monitoring system according to claim 1, characterized in that, The mobile terminal is a mobile phone, which has a mobile APP installed for communication with the diagnostic management platform.

7. The intelligent engine monitoring system according to claim 1, characterized in that, The diagnostic management platform monitors various parameters of the engine in real time. When any parameter exceeds the standard, it sends an alarm message to the mobile terminal; when the engine maintenance is due, it sends a maintenance reminder message to the mobile terminal.

Citation Information

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