Stefan Lohmaier
a47e0aed3e
Phase 1 of full English translation: - generate_doorstop_items.py: all 55 items (SG/SYS/SWE/SA/SWA) rewritten in English - generate_landing_page.py: full UI labels, KPI cards, section headings in English - traceability.py: docstring, error messages, HTML headers in English - generate_test_report.py: report content + table headers in English - All 55 markdown items in safety/sg/, reqs/, arch/ regenerated in English Still to come: - demo-epb filled Word docs (PID, plans, safety, manuals, audit artefacts) - Code comments + test names + CI workflow step names - README + dev-process repo templates
39 lines
942 B
Markdown
39 lines
942 B
Markdown
---
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active: true
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derived: false
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header: 'Sensor cluster'
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level: 1.3
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normative: true
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reviewed: null
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links:
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- SYS-005
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- SYS-006
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- SYS-007
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asil: B
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---
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# SA-003: Sensor cluster
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## Responsibility
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Summary of all input signals required by the EPB: wheel-speed
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sensors (4x), inclinometer (1x), EPB switch, brake-pedal status,
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gear position, door open, seatbelt — the last four via CAN.
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## Interfaces
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| Sensor | Type | Source |
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|-----------------|--------------|------------|
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| Wheel speed x4 | Hall pulses | direct |
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| Inclinometer | SPI 1 kHz | direct |
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| EPB switch | GPIO | direct |
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| Brake pedal | CAN 0x100 | from BCM |
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| Gear | CAN 0x110 | from TCU |
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| Door / belt | CAN 0x120 | from BCM |
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## Non-functional properties
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- Wheel-speed accuracy: +/- 0.1 km/h above 1 km/h
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- Inclinometer accuracy: +/- 0.5°
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- Inclinometer sampling rate: 100 Hz
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