Communications - Scientific Letters of the University of Zilina 2020, 22(4):134-143 | DOI: 10.26552/com.C.2020.4.134-143

Functional Safety for Developing of Mechatronic Systems - Electric Parking Brake Case Study

Juraj Pancik1, Peter Drgona1, Marek Paskala1
1 Department of Mechatronics and Electronics, Faculty of Electrical Engineering and Information Technology, University of Zilina, Slovak Republic

The electric parking brake (EPB) system as the complex mechatronic system consists of the actuators that generate the clamping force necessary to hold the vehicle safe, the conventional calipers that convert clamp force into brake torque, electronic hardware with the Electronic Control Unit (ECU), cable harness and switches and especially the control software providing the functions that the driver will experience. Like most of the modern automotive components, the EPB is equipped with embedded electronic systems that include ECU, electronic sensors, signals, bus systems, and coding. Due to the complex application in electrical, electronics and programmable electronics, the need to carry out detailed safety analyses that are focused on the potential risk of malfunction is crucial for automotive systems. This paper describes a possible division of the EPB sub-functions between the supplier the wheel brakes and the supplier which supplying the ECU. Functional safety must be a guarantee with concerning the overall vehicle system. Functional safety is according to the requirements of the ISO 26262 standard and in the context of this paper relates solely to the E/E components (electrical and/or electronic) of the EPB. This paper covers the hazard analysis and risk assessment relevant to the EPB control software, and the derived allocation of ASIL risk levels to the EPB software elements of the functional architecture of the EPB.

Keywords: functional safety management, ISO26262, ASIL, electric parking brake

Received: October 2, 2019; Accepted: January 18, 2020; Published: October 1, 2020  Show citation

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Pancik, J., Drgona, P., & Paskala, M. (2020). Functional Safety for Developing of Mechatronic Systems - Electric Parking Brake Case Study. Communications - Scientific Letters of the University of Zilina, 22(4), 134-143. doi: 10.26552/com.C.2020.4.134-143
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    References

    1. REITZ, A., LOEHR. B., KOHRT, J.-P. Harmonisation of the release process for electric parking brake systems. In: Euro Brake 2016 : proceedings. 2016.
    2. ISHIHARA, K. Introduction of R13H: brake regulations for passenger vehicles. In: 3rd Asia Expert Meeting on Braking Systems for Passenger Vehicles : proceedings. 2005.
    3. ECE Regulation No. 13-H. Uniform provisions concerning the approval of passenger [online] [accessed 2019-09-18]. Available from: http://www.unece.org/fileadmin/DAM/trans/main/wp29/wp29regs/R13hr2e.pdf
    4. FYNES, C. What's the difference among OES, OEM, and Aftermarket Car Parts? - Your Mechanic [online] [accessed 2019-09-18]. Available from: https://www.yourmechanic.com/article/-what-s-the-difference-among-oes-oem-and-aftermarket-car-parts-by-conor-fynes
    5. Verband der Automobilindustrie / Association of the Automotive Industry [online] [accessed 2019-09-18]. Available from: https://www.vda.de/en
    6. VDA 305-100 Recommendation for integration of electric parking brakes control into ESC control units - Verband der Automobilindustrie / Association of the Automotive Industry [online] [accessed 2019-09-18]. Available from: https://www.vda.de/en/services/Publications/integration-actuators-of-electric-parking-brakes-esc.html
    7. KAFKA, P. The automotive standard ISO 26262, the innovative driver for enhanced safety assessment and technology for motor cars. Procedia Engineering [online]. 2012, 45, p. 2-10. ISSN 1877-7058. Available from: https://doi.org/10.1016/j.proeng.2012.08.112 Go to original source...
    8. SAE International. Examples and GUIDANCE for brake and park brake functions HARA. In: J2980 considerations for ISO 26262 ASIL hazard classifications. 2015.
    9. Automotive SPICE process reference model process assessment model version 3.1 - VDA QMC Working Group 13 / Automotive SIG [online] [accessed 2019-09-18]. Available from: http://www.automotivespice.com/fileadmin/software-download/AutomotiveSPICE_PAM_31.pdf
    10. IATF 16949:2016 Quality management system - AIAG [online] Available from: https://www.aiag.org/quality/iatf16949
    11. WARD, D. D., CROZIER, S. E., The uses and abuses of ASIL decomposition in ISO 26262 In: 7th IET International Conference on System Safety, incorporating the Cyber Security Conference 2012 : proceedings [online] [accessed 2019-09-23]. 2012. ISBN 978-1-84919-678-9. Available from: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6464473 Go to original source...
    12. ISO 26262, Part 9: Automotive Safety Integrity Level (ASIL) - oriented and safety - oriented analysis. 2018.

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