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Filtering method and device suitable for vehicle sensor signal and storage medium

A sensor signal and sensor technology, which is applied in the automotive field, can solve problems such as difficult control, signal accuracy and bandwidth defects, and low efficiency of voltage sampling signal processing, achieving good filtering effects, improving processing efficiency, and reducing burdens

Pending Publication Date: 2020-12-11
GUANGZHOU AUTOMOBILE GROUP CO LTD
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Problems solved by technology

[0002] Most countries and automobile companies use solidified filtering algorithms for the measurement of voltage sampling signals obtained by on-board sensors, that is, to formulate a certain filtering algorithm based on existing data. The above-mentioned method has several defects: 1. Due to the There are many, the frequency range is widely distributed, and the processing efficiency of a certain filtering algorithm for the voltage sampling signal of the vehicle sensor is too low; Second, another disadvantage of this method is that under some special working conditions, the frequency characteristics of the signal are often not as processed before. However, using the same algorithm to process this part of the signal will lead to defects in the accuracy and bandwidth of the signal, which will bring difficulties to the control; 3. There is no correction mechanism for the filtered result of the voltage sampling signal

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  • Filtering method and device suitable for vehicle sensor signal and storage medium
  • Filtering method and device suitable for vehicle sensor signal and storage medium
  • Filtering method and device suitable for vehicle sensor signal and storage medium

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Embodiment Construction

[0045] The core content of this patent is to select a filter according to the signal frequency, set the number of sampling according to the signal frequency and correct the filtering result. The specific implementation will be further described below in conjunction with the drawings and examples.

[0046] Embodiments of the filtering method suitable for vehicle sensor signals provided by the present invention will be described in detail below.

[0047] Such as figure 1 As shown, the embodiment of the present invention provides a filtering method suitable for vehicle sensor signals, the method comprising:

[0048] S11. Acquire the voltage sampling signal of the vehicle sensor.

[0049] It should be noted that there are many types and quantities of vehicle sensors, such as acceleration sensors, steering wheel angle sensors, oil level sensors, liquid level sensors, etc.; the acquisition of voltage sampling signals of vehicle sensors is achieved using a high-speed NI-DAQ voltage ...

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Abstract

The invention provides a filtering method and device suitable for a vehicle sensor signal. The method comprises the steps of acquiring a voltage sampling signal of a vehicle sensor; calculating a frequency of the voltage sampling signal according to the voltage sampling signal; selecting a filter for filtering the voltage sampling signal according to the frequency of the voltage sampling signal, apreset frequency range and a corresponding relation of each filter; and inputting the voltage sampling signal into a selected filter for filtering, and outputting a filtering signal. According to theinvention, problems that the voltage sampling signal processing efficiency of the existing vehicle-mounted sensor is too low, the control is difficult, and the filtered result lacks a correction mechanism are solved.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a filtering method, device and storage medium suitable for vehicle sensor signals. Background technique [0002] Most countries and automobile companies use solidified filtering algorithms for the measurement of voltage sampling signals obtained by on-board sensors, that is, to formulate a certain filtering algorithm based on existing data. The above-mentioned method has several defects: 1. Due to the There are many, the frequency range is widely distributed, and the processing efficiency of a certain filtering algorithm for the voltage sampling signal of the vehicle sensor is too low; Second, another disadvantage of this method is that under some special working conditions, the frequency characteristics of the signal are often not as processed before. However, using the same algorithm to process this part of the signal will lead to defects in the accuracy and bandwidth of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R19/00G01R23/165
CPCG01R19/0084G01R23/165
Inventor 王师吴健瑜曹昱聪梅兴泰曹勇范良明黄炜奥迪刘泰佑赵晶
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD
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