Cases | Predictive Maintenance | Illustrative Truck Example
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Predictive Maintenance - Illustrative Example
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Predicting 'Remaining Useful Life' (RUL) for a vehicle using Oil Level (%) data
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https://www.csselectronics.com/
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Assumptions
Results
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Oil Level Rate of Decay (%-pts / Km / Day)
0.003%Warning Date28/08
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Remaining Useful Life Warning Threshold (#days)
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Predicted RUL at Warning Date (#days)
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Oil Level Failure Threshold (%)
10%
True RUL at Warning Date (#days)
16
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Error (#days)3
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Model: RUL = INTERCEPT + SLOPE x [OIL LEVEL]
Error Relative (%)
17%
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INTERCEPT-9.9
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SLOPE76.0
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FailureWarningDateDistance/Day (km)Oil Level (%)Warning Threshold (#days)True RUL (#days)Predicted RUL (#days)
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05/07176100.0%107066
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06/0724099.2%106965
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07/0728098.3%106865
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08/0728897.4%106764
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09/07097.4%106664
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10/07097.4%106564
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11/07097.4%106464
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12/07097.4%106364
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13/07097.4%106264
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14/07097.4%106164
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15/0744095.9%106063
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16/0744894.5%105962
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17/0745693.0%105861
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18/0744091.6%105760
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19/0748090.0%105658
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20/0770287.7%105557
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21/0771585.4%105455
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22/071,00282.2%105352
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23/071,02078.8%105250
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24/0795075.8%105148
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25/0749674.1%105046
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26/0724073.4%104946
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27/0716072.8%104845
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28/07072.8%104745
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29/07072.8%104645
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30/07072.8%104545
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31/07072.8%104445
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01/08072.8%104345
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02/08072.8%104245
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03/08072.8%104145
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04/08072.8%104045
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05/08072.8%103945
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06/0816072.3%103845
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07/0824071.5%103744
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08/0848070.0%103643
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09/0864067.9%103542
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10/0865665.8%103440
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11/0860063.8%103339
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12/0866461.7%103237
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13/0864059.6%103135
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14/0864057.5%103034
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15/0864855.4%102932
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16/0865653.3%102831
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17/0840052.0%102730
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18/0820451.3%102629
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19/0842649.9%102528
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20/0811449.5%102428
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21/0822948.8%102327
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22/0843047.4%102226
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23/088647.1%102126
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24/0858845.2%102024
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25/0884942.5%101922
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26/089342.2%101822
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27/0832941.1%101721
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WARNING28/081,02637.7%101619
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WARNING29/0898534.5%101516
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WARNING30/0828033.6%101416
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WARNING31/0897930.5%101313
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WARNING01/0955228.7%101212
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WARNING02/0989925.7%101110
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WARNING03/0920325.1%10109
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WARNING04/0996621.9%1097
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WARNING05/0920721.3%1086
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WARNING06/093921.1%1076
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WARNING07/0956019.3%1065
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WARNING08/0943317.9%1054
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WARNING09/0999814.7%1041
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WARNING10/0921814.0%1031
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11/0973811.6%102
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12/0926310.7%101
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FAILURE13/094549.2%100
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FAILURE14/096187.2%10
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FAILURE15/095335.5%10
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FAILURE16/091,07010
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FAILURE17/0966110
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FAILURE18/0997610
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FAILURE19/0992910
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FAILURE20/0963410
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FAILURE21/0940410
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FAILURE22/0997810
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FAILURE23/0920510
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FAILURE24/0943210
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FAILURE25/0916410
100
FAILURE26/0963910
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