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Temperature compensation method, printed circuit board, compressor and vehicle

A printed circuit board, temperature compensation technology, applied in thermometers, thermometer parts, thermometers with electrical/magnetic components directly sensitive to heat, etc., can solve problems such as the impact of compressor reliability

Active Publication Date: 2021-10-08
安庆威灵汽车部件有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the temperature detection error is large, it will have a great impact on the service life of components and PCB boards, as well as the reliability of the entire compressor

Method used

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  • Temperature compensation method, printed circuit board, compressor and vehicle
  • Temperature compensation method, printed circuit board, compressor and vehicle
  • Temperature compensation method, printed circuit board, compressor and vehicle

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Embodiment Construction

[0042]In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0043] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

[0044] Embodiments of the first aspect of the invention provide a temperature compensation method.

[0045] figure 1 A schematic flowchart of a temperature compensation method according to an embodi...

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Abstract

The invention provides a temperature compensation method, a printed circuit board, a compressor, and a vehicle, wherein the temperature compensation method includes: acquiring a data packet, the data packet includes a plurality of data pairs, and each data pair includes an associated voltage and measurement Temperature, the measured temperature is calculated by the relationship between voltage and voltage temperature; cluster calculation is performed on the data packets to obtain multiple central data pairs, and multiple central data pairs form a central data pair group; the voltage is fitted by the central data pair group Temperature curve: A temperature compensation model is generated according to the voltage temperature curve and the theoretical voltage temperature curve, and the temperature compensation model is used to compensate the measured temperature. The temperature compensation method provided by the present invention collects the digital signal of the NTC thermistor, analyzes the data by using the signal processing method, and finally establishes a temperature compensation model for real-time temperature monitoring to compensate the measured temperature, which can improve the detection of temperature Precision, so that the printed circuit board is more effectively protected.

Description

technical field [0001] The present invention relates to the field of electric vehicle compressor control, in particular to a temperature compensation method, a computer device, a computer-readable storage medium, a printed circuit board, a compressor and a vehicle. Background technique [0002] The commonly used NTC (negative temperature coefficient, negative temperature coefficient) thermistor is a temperature-sensitive resistor with a negative temperature coefficient, which changes with the change of temperature. The principle of temperature measurement is to derive the corresponding resistance value by collecting the voltage change at both ends of the resistor, and then use the look-up table method to find out the temperature corresponding to the resistance value. In practical applications, this temperature protection strategy will cause large errors, because the resistance value of the resistor may deviate from the calibration value, and the change in actual conditions i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01K1/20G01K7/22G01K7/02
CPCG01K1/20G01K7/22G01K7/02
Inventor 谢静仁
Owner 安庆威灵汽车部件有限公司
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