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http://dx.doi.org/10.7467/KSAE.2014.22.3.114

Dynamic Temperature Compensation System Development for the Accelerometer with Modified Spline Interpolation (Curve Fitting)  

Lee, Hoochang (R&D Center, Mando-Hella Electronic Corp.)
Go, Jaedoo (R&D Center, Mando-Hella Electronic Corp.)
Yoo, Kwangho (R&D Center, Mando-Hella Electronic Corp.)
Kim, Wanil (R&D Center, Mando-Hella Electronic Corp.)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.22, no.3, 2014 , pp. 114-122 More about this Journal
Abstract
Sensor fusion is the one of the main research topics. It offers the highly reliable estimation of vehicle movement by processing and mixing several sensor outputs. But unfortunately, every sensor has drift which degrades the performance of sensor. It means a single degraded sensor output may affect whole sensor fusion system. Drift in most research is ideally assumed to be zero because it's usually a nonlinear model and has sample variation. Plus, it's very difficult for the acceleration to separate drift from the output signal since it contains many contributors such as vehicle acceleration, slope angle, pitch angle, surface condition and so on. In this paper, modified spline interpolation is introduced as a dynamic temperature compensation method covering sample variation. Using the last known output and the first initial output is suggested to build and update compensation factor. When the system has more compensation data, the system will have better performance of compensated output because of the regression compensation model. The performance of the dynamic temperature compensation system is evaluated by measuring offset drift between with and without the compensation.
Keywords
Spline interpolation; Acceleration; Regression analysis; Drift; ESC; HAC;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 J. H. Ham, I. K. Moon, K. I. Seo and C. J. Cha, "The Vehicle Longitudinal Estimator with Sensor Fusion," KSAE Annual Conference Proceedings, pp.1289-1294, 2011.
2 D. J. Lee and K. H. Han, "Model Based Road Slope Estimation with G-sensor," KSAE Annual Conference Proceedings, pp.2138-2141, 2010.
3 S. Y. Lee, I. K. Kim, D. H. Lee and K. S. Huh, "Vehicle Longitudinal Velocity Estimation on Inclined Road," Transactions of KSAE, pp.14-19, 2012.   과학기술학회마을   DOI   ScienceOn
4 S. P. Kim, Essential Kalman Filter, pp.5-6, A-JIN, Seoul, 2012.
5 IEEE Aerospace and Electronics Systems Society, IEEE Recommended Practice for Inertial Sensor Test Equipment, Instrumentation, Data Acquisition, and Analysis, pp.72-74, IEEE Std 1554TM -2005, 2005.
6 J. Y. Kim, J. S. Oh and W. R. Roh, "Performance Analysis of Gyroscope Static Stability using Allan Variance and PSD Method," Annual Conference Proceedings, KSAS, pp.1095-1099, 2008.