DBC file

Example

Use in Lemonergy

Separate quantities from encoding and transport.

This is a reference concept. No executable Lemonergy block has been verified for this term.

Connected concepts

Related concepts from the knowledge graph. Connections show context, not cause and effect. Hover or focus a linked term for its definition.

ARXML

The XML exchange format of AUTOSAR, describing software components and the communication matrix of a whole vehicle — CAN, LIN, FlexRay and Ethernet — in one model. Carmakers increasingly hand suppliers ARXML instead of DBC files.

ASC file

The plain-text form of a bus log, one frame per line with time, channel, identifier and data bytes. It is larger than BLF but readable in any editor; PEAK’s .trc files are a similar text trace from their interfaces.

BLF file

Vector’s compressed binary format for bus logs: every CAN, CAN FD, LIN or Ethernet frame with its timestamp and channel. It is the usual format of field logs from vehicles and test benches, decoded with the matching DBC file.

CAN bus

The serial network over which a BMS talks to the vehicle or inverter: a two-wire differential bus, defined in ISO 11898, carrying short prioritised messages at up to 1 Mbit/s, or faster with CAN FD. Every node hears every message, and a dominant bit wins arbitration without any collision.

SAE J1939

The CAN-based protocol of trucks, buses and off-highway machines, with 29-bit identifiers and standard parameter groups. Commercial-vehicle batteries and chargers often report SOC, limits and faults as J1939 messages, and the bus FMS interface builds on it.

References & further reading

Further reading on this topic

These sources provide broader context; they are not presented as citations for every statement in this entry.

1. 3rd generation of the CAN data link layer

   CAN in Automation, CAN Newsletter · 2020

   Topic background · Classical CAN, CAN FD and CAN XL data-link concepts; publication describes the 2020 state.

2. Getting Started with the BQ76925

   Texas Instruments · 2019

   Topic background · A concrete BMS analog front-end example: cell voltage, current, temperature measurement and MCU integration.