Tag: CAN Bus
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Project sEVen Pt9: Traction DC2DC converter Bring Up
Project sEVen update covering traction DC-DC converter bring-up, high-voltage testing, low-voltage integration, CAN bus work, and the Caterham EV testbench.
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GVRET and BDC668 Dissectors for Wireshark
Technical notes on GVRET and BDC668 Wireshark dissectors, using CAN bus tooling to inspect and understand Project sEVen diagnostic and power-electronics data.
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Putting the EV in sEVen – Index
Project sEVen is the electric conversion thread for the Caterham, covering mechanical packaging, EV power electronics, CAN bus diagnostics, 3D scanning, CAD references, and systems integration.
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Lowflying Article – If Only Caterhams Could Talk, June/July 2020
Background post for the Lowflying article that adapted the Caterham ECU diagnostics work into a broader explanation of CAN bus and MBE diagnostic data.
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ECU Diagnostics – part 14 : Software Framework mbe.py
Introduces the Python mbe.py framework for sending requests to the Caterham MBE 9A4 ECU and formatting diagnostic responses into readable values.
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ECU Diagnostics – part 13.3 : MBE-ISOTP
Describes the MBE ISO-TP style protocol used by Easimap to request data from the Caterham ECU and turn the responses into useful diagnostics.
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ECU Diagnostics – part 13.2 : OBD-II
Summarises what standard OBD-II services and PID data the Caterham MBE 9A4 ECU supports and how that data appears on the CAN bus.
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ECU Diagnostics – part 13.1 : MBE-Broadcast
Documents the MBE-Broadcast protocol, where the Caterham ECU continuously emits CAN bus frames containing diagnostic data once the ignition is on.
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ECU Diagnostics – part 13 : Three Diagnostic Protocols in the MBE 9A4 ECU
Introduces the three diagnostic protocols found on the Caterham MBE 9A4 ECU: MBE-Broadcast, OBD-II, and the MBE ISO-TP protocol used by Easimap.
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ECU Diagnostics – part 12 : OSI 7 Layers for Caterham Diagnostics
Maps the Caterham diagnostics stack onto the OSI model, from CAN bus hardware through MBE ISO-TP layers up to Python tooling and applications.