Model-based diagnosis and fault tolerant control for ensuring torque functional safety of pedal-by-wire systems |
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| Affiliation: | 1. Consejo Nacional de Investigaciones Científicas y Técnicas, CONICET, Argentina;2. Digital Image Processing Lab, Instituto de Investigaciones Científicas y Tecnológicas en Electrónica (ICyTE), Facultad de Ingeniería, Universidad Nacional de Mar del Plata-CONICET, Juan B. Justo 4302, Mar del Plata (Zip Code B7608FDQ), Argentina;3. Bioengineering Lab, Instituto de Investigaciones Científicas y Tecnológicas en Electrónica (ICyTE), Facultad de Ingeniería, Universidad Nacional de Mar del Plata-CONICET, Juan B. Justo 4302, Mar del Plata (Zip Code B7608FDQ), Argentina |
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| Abstract: | This paper presents a model based approach for defining automotive functional safety requirements and provides a solution to ensure functional safety through model-based diagnosis and fault tolerant control. This model-based approach is consistent with ISO 26262 – functional safety standard. In particular, this paper presents the necessary steps for defining and implementing functional safety requirements, including item and function definition, Hazard Analysis and Risk Assessment, as well as the design of a model-based diagnostic and fault tolerant control (FTC) system that can lead to a systematic solution to automotive functional safety problems. The methodology proposed in this paper is applied to the problem of torque functional safety of pedal-by-wire systems. |
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| Keywords: | Functional safety ISO 26262 Model-based Fault diagnosis Fault tolerant control Pedal-by-wire system |
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