Functional Safety Assessment of a Generic Accelerator Control System With Electronic Throttle Control in Fuel Cell Hybrid Electric Vehicles

Details

• Creators:
  Becker, Christopher ; Nasser, Ahmad ; Attioui, Fouad
• Corporate Creators:
  John A. Volpe National Transportation Systems Center (U.S.) ; United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology
• Corporate Contributors:
  United States. Department of Transportation. National Highway Traffic Safety Administration
• Subject/TRT Terms:
  • Control system applications
  • Accelerators (Devices)
  • Fuel cell vehicles
  • Hazard analysis
  • Risk assessment
  • Hybrid vehicles
  • accelerator control system
  • electronic throttle control
  • fuel cell
  • hazard and operability study
  More +
• Publication/ Report Number:
  DOT HS 812 640 ; DOT-VNTSC-NHTSA-16-09
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  United States. Department of Transportation. National Highway Traffic Safety Administration
• Abstract:
  This report describes research assessing the functional safety of accelerator control systems with electronic faults, such as errant electronic throttle control signals, following an industry process standard. This study focuses specifically on errant signals in motor vehicles with fuel cell hybrid electric propulsion. This study follows the concept phase process in the ISO 26262 standard and applies a hazard and operability study, functional failure mode and effects analysis, and systems theoretic process analysis methods. In total, this study identifies 7 vehicle-level safety goals and 202 ACS/ETC system safety requirements (an output of the ISO 26262 and STPA processes). This study uses the results of the analysis to identify potential opportunities to improve the risk assessment approach in ISO 26262.
• Content Notes:
  Becker, C., Nasser, A., & Attioui, F. (2018, December). Functional safety assessment of a generic accelerator control system with electronic throttle control in fuel cell hybrid electric vehicles (Report No. DOT HS 812 640). Washington, DC: National Highway Traffic Safety Administration.
• Format:
  PDF
• Funding:
  Intra-Agency Agreement DTNH22-15-V-00010, 51HS7BA200
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/38826/dot_38826_DS1.pdf
• File Type:
  [PDF - 1.90 MB]
• Collection(s):
  NHTSA - Vehicle Safety Research ; US Transportation Collection
• Main Document Checksum:
  urn:sha256:be2d5bf3f5cf6fabade323a06c2e8c7de062671e3992a40ad9a07c5ab098095d