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Improvement of HILS Using Advanced Exploratory and Optimization Techniques for System Qualification Test

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Abstract

Global automakers are required to apply Automotive SPICE (A-SPICE) to evaluate the development capabilities and qualities of suppliers in addition to the automotive functional safety standard (ISO 26262) for preventing accidents caused by errors in the electronic components. However, rapidly changing software requirements and environments make it difficult to follow A-SPICE and ISO 26262, leading to late detection of software defects in the system qualification test, which is the final verification stage of the V-model. Correcting these defects incurs additional time and cost. This study proposes an enhanced qualification test strategy and technique, which ensures zero defects at an early stage, thereby saving time and cost. The proposed strategy and technique are performed by advanced exploratory and optimization tests that utilize a risk-based test strategy to solve problems. The risk-based test strategy is established at the beginning to identify highly potential problems and is derived from the 1st stage advanced exploratory and 2nd stage optimization tests based on ISO 29119. The test is performed during a CDC system qualification test using an “advanced HILS,” which supports UDS and XCP protocols. The proposed test techniques can solve problems during an early phase and achieve zero defects in a CDC system qualification test.

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Abbreviations

Vv:

valid value

Vi:

invalid value

Bx:

boundary max value

Bn:

boundary min value

TCs:

sum of check test case

CTt:

testcase by classification tree method

EPt:

testcase by exploratory testing

PWt:

pairwise testing

BAt:

boundary value analyzer

STs:

mixing the state transition and scenario

FSc:

failsafe category

CPs:

sum of check parameter variables

{}:

applied according to detection conditions

[]:

number of test cases

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Acknowledgement

This research was supported by ZF Sachs Korea.

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Authors and Affiliations

  1. School of Robot Engineering, Pusan National University, Busan, 46241, Korea

    DeukKwon Kim & Min Cheol Lee

  2. ZF Sachs Korea, 173 Seongsanpaechong-ro, Seongsan-gu, Changwon-si, Gyeongnam, 51534, Korea

    DeukKwon Kim & JeongHeon Kim

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  1. DeukKwon Kim
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  2. JeongHeon Kim
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Correspondence to Min Cheol Lee.

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Kim, D., Kim, J. & Lee, M.C. Improvement of HILS Using Advanced Exploratory and Optimization Techniques for System Qualification Test. Int.J Automot. Technol. 24, 901–911 (2023). https://doi.org/10.1007/s12239-023-0074-x

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  • DOI: https://doi.org/10.1007/s12239-023-0074-x

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