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Engine oil liquid level detection method and device

A technology of liquid level detection and engine oil, which is applied in the directions of lubrication indicator devices and lubricating parts, etc., can solve the problems of inability to realize real-time continuous monitoring and alarm of engine oil level, inability to accurately measure engine oil level, cumbersome operation methods, etc., and achieve the goal of using The effect of wide range, high versatility and applicability, and high safety

Pending Publication Date: 2021-04-16
SINO TRUK JINAN POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Normally, the oil level of the engine is judged by the oil dipstick inserted into the engine lubrication system to judge the lack of oil. The operation method is relatively cumbersome and requires opening the engine protective cover or turning the cab, which has a very high safety hazard.
At the same time, the traditional method of measuring the oil level with the oil dipstick cannot accurately measure the oil level and needs to be carried out under specific conditions when the machine is stopped. It cannot realize real-time continuous monitoring and alarming of the oil level, and has advantages in protecting the engine in all directions and under all working conditions. great limitations

Method used

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Experimental program
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Effect test

Embodiment 1

[0047] Such as figure 1 As shown, the present embodiment provides a method for detecting the oil level, comprising the following steps:

[0048] S1, start the heating circuit of the oil level sensor, and turn off the heating circuit after running for a certain period of time;

[0049] S2, in response to the starting process of the heating circuit, read the sampling voltage U0 of the oil level sensor and the sampling temperature T0 of the oil temperature sensor;

[0050] S3, in response to the closing process of the heating circuit, read the sampling voltage U1 of the oil level sensor;

[0051] S4, the voltage difference ΔU between the sampling voltage U0 and the sampling voltage U1 of the computer oil level sensor;

[0052] S5, obtaining the oil level according to the sampling temperature T0 and the voltage difference ΔU.

[0053] It should be noted that due to the performance of the engine oil, the oil level is affected by the temperature, so this embodiment uses the tempe...

Embodiment 2

[0076] Such as figure 2 As shown, the present embodiment provides an engine oil level detection device, which implements the method steps of the first embodiment after execution.

[0077] The device can be integrated in the vehicle chassis domain control software or the engine electronic control software, and is powered, initialized and calculated and executed by the vehicle chassis domain control system or the engine electronic control system.

[0078] The device includes the following functional modules:

[0079] Heating circuit control module 1: control the startup and shutdown of the heating circuit;

[0080] Heating circuit status monitoring module 2: monitor the running status of the heating circuit;

[0081] Temperature reading module 3: in response to the start-up process of the heating circuit, read the sampling temperature T0 of the oil temperature sensor;

[0082] The first voltage reading module 4: in response to the starting process of the heating circuit, rea...

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Abstract

The invention discloses an engine oil liquid level detection method and device. The engine oil liquid level detection method comprises the steps that a heating circuit of an engine oil liquid level sensor is started, and the heating circuit is closed after a certain time; in response to the starting process of the heating circuit, the sampling voltage U0 of the engine oil liquid level sensor and the sampling temperature T0 of an engine oil temperature sensor are read; in response to a closing process of the heating circuit, the sampling voltage U1 of the engine oil liquid level sensor is read; a voltage difference value <triangle>U between the sampling voltage U0 and the sampling voltage U1 of the engine oil liquid level sensor is calculated; and the engine oil liquid level is obtained according to the sampling temperature T0 and the voltage difference value U. According to the engine oil liquid level detection method and device, the engine oil liquid level is detected through an electric control software algorithm and the engine oil liquid level and the temperature sensor, and the reliability is higher; the engine oil liquid level detection method and device are suitable for different engine models, and high in universality and applicability; a traditional method of manually observing an oil scale is replaced to realize the detection of the engine oil liquid level, and the safety is higher; and the engine oil liquid level can be detected in real time, and high real-time performance is achieved.

Description

technical field [0001] The invention relates to the field of engine oil level detection, in particular to an engine oil level detection method and device. Background technique [0002] Normally, the oil level of the engine is judged by the oil dipstick inserted into the engine lubrication system to judge the lack of oil. The operation method is cumbersome and requires opening the engine protective cover or turning the cab, which has a very high safety hazard. At the same time, the traditional method of measuring the oil level with the oil dipstick cannot accurately measure the oil level and needs to be carried out under specific conditions when the machine is stopped. It cannot realize real-time continuous monitoring and alarming of the oil level, and has advantages in protecting the engine in all directions and under all working conditions. Great limitations. [0003] With the rapid development of vehicle electronic control technology and the further improvement of vehicle...

Claims

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Application Information

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IPC IPC(8): F01M11/12
Inventor 路志强高崧林孙广迪
Owner SINO TRUK JINAN POWER