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A heating control method, device, equipment and medium of an oxygen sensor

An oxygen sensor and heating control technology, which is applied in the field of automobile control, can solve the problem that the heating control accuracy needs to be improved, and achieve the effect of ensuring the heating control accuracy, high-precision heating control, and high-precision control of working temperature.

Active Publication Date: 2022-07-26
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the heating control accuracy of the existing oxygen sensor heating control scheme needs to be improved

Method used

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  • A heating control method, device, equipment and medium of an oxygen sensor
  • A heating control method, device, equipment and medium of an oxygen sensor
  • A heating control method, device, equipment and medium of an oxygen sensor

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0029] figure 1 This is a flowchart of a heating control method for an oxygen sensor provided in Embodiment 1 of the present invention. This embodiment can be applied to the situation of controlling the heating process of the oxygen sensor, especially to the situation of controlling the heating process of the oxygen sensor based on a closed-loop method. The method can be executed by the heating control device of the oxygen sensor provided in the embodiment of the present invention, the device can be implemented by software and / or hardware, the device can be integrated on the heating control device of the oxygen sensor, and the device can be various User terminal or server.

[0030] see figure 1 , the method of the embodiment of the present invention specifically comprises the following steps:

[0031] S110: Acquire heating control parameters associated with the oxygen sensor, and determine whether to perform closed-loop heating control on the oxygen sensor according to the ...

Embodiment 2

[0046] Figure 4 This is a flow chart of a heating control method for an oxygen sensor provided in the second embodiment of the present invention. This embodiment is optimized based on the above technical solutions. In this embodiment, optionally, performing the heating control on the oxygen sensor according to the actual temperature and the expected temperature may specifically include: determining the first off time when the heating control is performed on the oxygen sensor according to the actual temperature and the expected temperature, and according to the actual temperature and the expected temperature The relative heating efficiency of the oxygen sensor is determined by the actual voltage and rated voltage of the battery associated with the oxygen sensor; the first off time is corrected according to the relative heating efficiency, and the oxygen sensor is heated based on the corrected first off time. Wherein, the explanations of terms that are the same as or correspon...

Embodiment 3

[0056] Figure 5 This is a flowchart of a heating control method for an oxygen sensor provided in Embodiment 3 of the present invention. This embodiment is optimized based on the above technical solutions. The explanations of terms that are the same as or corresponding to the above embodiments will not be repeated here.

[0057] see Figure 5 , the method of this embodiment may specifically include the following steps:

[0058] S3010. Acquire heating control parameters associated with the oxygen sensor, wherein the heating control parameters include the internal resistance of the oxygen sensor, the actual temperature of the oxygen sensor, the historical temperature, the start end time between the start time point of the engine and the current time point, and the heating control parameters. Closed-loop control flag, the actual temperature is determined according to the internal resistance of the oxygen sensor, the exhaust temperature is the temperature of the exhaust gas dis...

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PUM

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Abstract

Embodiments of the present invention disclose a heating control method, device, equipment and medium for an oxygen sensor. The method includes: acquiring heating control parameters associated with the oxygen sensor, and determining whether to perform closed-loop heating control on the oxygen sensor according to the heating control parameters; if so, determining the actual temperature of the oxygen sensor according to the internal resistance of the oxygen sensor, and acquiring The exhaust gas temperature of the exhaust gas discharged through the exhaust pipe provided with the oxygen sensor is determined, and the desired temperature of the oxygen sensor is determined according to the exhaust gas temperature; the heating control of the oxygen sensor is performed according to the actual temperature and the desired temperature. The technical solutions of the embodiments of the present invention can perform high-precision heating control of the oxygen sensor.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of automobile control, and in particular, to a heating control method, device, device and medium for an oxygen sensor. Background technique [0002] At present, the oxygen sensor used in the car is an important input for the high-precision air-fuel ratio control of the in-vehicle engine. In other words, the heating control of the oxygen sensor is very important for the engine. However, the heating control accuracy of the existing heating control scheme of the oxygen sensor needs to be improved. SUMMARY OF THE INVENTION [0003] Embodiments of the present invention provide a heating control method, device, equipment and medium for an oxygen sensor, so as to achieve the effect of high-precision heating control of the oxygen sensor. [0004] In a first aspect, an embodiment of the present invention provides a heating control method for an oxygen sensor, which may include: [0005] Obta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D23/30
CPCG05D23/30
Inventor 欣白宇孙鹏远苗志慧宋同好王鑫刘笑飞孙超
Owner CHINA FIRST AUTOMOBILE