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MEMS accelerometer as inclinometer for electric parking brake systems
Technical Paper
2007-24-0136
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This works presents an approach for estimating the road uphill gradient of vehicles by means of a smart processing of the output signals of a 3-axis 2g/6g analog output linear MEMS accelerometer. The proposed approach allows an accurate estimation of the road uphill gradient both for motionless and in motion vehicles. The road gradient determination can be used in the control architecture of a prototypal EPB (Electric Parking Brake) in order to suitably adjust the clamping force transferred to the vehicle rear wheels. This means to transfer more or less clamping force to the vehicle rear wheels according to more or less noticeable road uphill gradient.
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Authors
- N. Cesario - Automotive Product Group - Advanced System Applications STMicroelectronics, Via R. De Feo, 1 - 80022 Arzano (NA), Italy
- F. Taglialatela - Automotive Product Group - Advanced System Applications STMicroelectronics, Via R. De Feo, 1 - 80022 Arzano (NA), Italy
- M. Lavorgna - Automotive Product Group - Advanced System Applications STMicroelectronics, Via R. De Feo, 1 - 80022 Arzano (NA), Italy
Citation
Cesario, N., Taglialatela, F., and Lavorgna, M., "MEMS accelerometer as inclinometer for electric parking brake systems," SAE Technical Paper 2007-24-0136, 2007, https://doi.org/10.4271/2007-24-0136.Also In
References
- UM0247 User Guide EK3L02AQ3 Evaluation Kit, STMicroelectronics
- LIS3L02AQ3 datasheet, MEMS Inertial Sensor: 3-axis ±2g/±6g linear accelerometer STMicroelectronics
- Massel T. Ding E. L. Arndt M. Identification and Road Gradient and Vehicle Pitch Angle Proceedings of the 2004 IEEE International Conference on Control Applications Taipei, Taiwan Sept. 2-4 2004
- Massel T. Ding E. L. Arndt M. Investigation of different techniques for determining the road uphill gradient and pitch angle of vehicles Proceedings of the 2004 American Control Conference Boston, Massachusetts 2004