Method for quickly locking analysis data based on MATLAB gear shifting process
A technology for analyzing data and fast locking, applied in special data processing applications, geometric CAD, design optimization/simulation, etc. Improve efficiency and simple operation
Active Publication Date: 2020-08-28
日照劲力传动有限公司
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[0002] The core function of an automatic transmission is to automatically shift gears according to the driver's intention, freeing the driver's left foot; during the use of an automatic transmission, its shifting quality often becomes a focus; in order to ensure the comfort of the automatic transmission and its Reliability requires long-term vehicle calibration and durability tests. During this process, a large amount of data will be generated. For automatic transmissions, the data during the shifting process is very important. Generally, fast data analysis is required during data analysis. Lock to a certain shift point, observe the data changes during the entire shift process, and analyze whether the shift process meets the requirements. Currently, data analysis methods are mostly manual data screening and analysis, and manual data locking is inefficient and impossible. To achieve effective analysis of large-scale data, it is easy to miss problem points
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[0023] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0024] This embodiment provides the automatic capture function and drawing process of the software under two situations of upshift and downshift, which are mainly divided into: figure 1 The seven main steps are shown.
[0025] The first step: Convert the original data format to MAT format and perform data suffix processing and renaming;
[0026] The raw data of this embodiment is dat format; Because the data processed by matlab is MAT format, other data formats need to carry out data conversion first; When the data of dat format is converted into the data of MAT format, there will be suffix after the previous data name , there will be differences when importing different data. In order to consider the consistency of the imported data, the suffix needs to be removed first to facilitate subsequent data proces...
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The invention discloses a method for quickly locking and analyzing data based on MATLAB (matrix laboratory) in a gear shifting process, which relates to automobile transmission data analysis and comprises the following steps: step 1, converting and processing a data format; step 2, importing the processed data into a working area of MATLAB; 3, data circulation is conducted, and a gear shifting starting point is determined; 4, circulation is conducted backwards on the basis of the starting point, and a gear shifting ending point is determined; 5, the gear shifting type is judged according to the target gear change and the gear shifting process parameters; step 6, selecting and intercepting characteristic parameters; and step 7, outputting the intercepted characteristic parameters in a picture format. According to the solution for quickly locking the gear shifting process data of the automatic transmission, operation is easy, understanding of data analysts is easy, and the data analysisefficiency is improved.
Description
[0001] The invention relates to data analysis of automobile transmissions, in particular to a method for quickly locking and analyzing data in a MATLAB-based gear shifting process. Background technique [0002] The core function of an automatic transmission is to automatically shift gears according to the driver's intention, freeing the driver's left foot; during the use of an automatic transmission, its shifting quality often becomes a focus; in order to ensure the comfort of the automatic transmission and its Reliability requires long-term vehicle calibration and durability tests. During this process, a large amount of data will be generated. For automatic transmissions, the data during the shifting process is very important. Generally, fast data analysis is required during data analysis. Lock to a certain shift point, observe the data changes during the entire shift process, and analyze whether the shift process meets the requirements. Currently, data analysis methods are mo...
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IPC IPC(8): G06F30/20G06F30/15
CPCG06F30/20G06F30/15
Inventor 张洪陈启良丁可汗董方
Owner 日照劲力传动有限公司