CAN Bus Engineer for BS6 Truck Telematics

CAN Bus Data Extraction & Vehicle Telematics Engineer – BS6 Trucks

We are looking for an experienced CAN Bus / Automotive Embedded Systems / Vehicle Telematics engineer who can help us extract and decode CAN bus data from BS6-compliant commercial trucks.

We currently have access to BS6 trucks and want to understand what data is available over the vehicle's CAN network, how to access it safely, and how to convert the raw CAN messages into meaningful vehicle parameters.

Project Requirements

The selected freelancer will be expected to help us with:

Identifying the available CAN bus interfaces/networks in BS6 trucks.

Determining the appropriate physical connection/interface for accessing CAN data.

Capturing raw CAN frames from the vehicle.

Identifying CAN IDs and message structures.

Decoding raw CAN data into meaningful parameters wherever possible.

Understanding CAN baud rate and communication configuration.

Identifying relevant vehicle parameters such as:

Vehicle speed

Engine RPM

Engine load

Accelerator/throttle position

Brake status

Engine temperature

Fuel level/fuel consumption

Vehicle odometer

Battery/alternator voltage

DTC/fault information

Engine status

Gear information

Wheel speed

PTO status, if available

Other available ECU/vehicle parameters

Determining whether the data follows a standard such as J1939, OBD-II, UDS, or a manufacturer-specific CAN protocol.

Providing guidance on CAN logging and analysis.

Helping us build a repeatable method for collecting CAN data from multiple trucks/models.

Important

We are specifically interested in BS6 commercial trucks, so experience with modern heavy vehicles and their CAN networks is highly desirable.

We understand that BS6 vehicles may have multiple CAN networks and that the availability and meaning of specific CAN parameters can vary depending on the truck manufacturer, model, ECU configuration, and CAN network.

The freelancer should therefore be comfortable with reverse engineering and CAN protocol analysis, rather than relying only on standard OBD-II PIDs.

Expected Deliverables

We would ideally like the freelancer to provide:

Recommended CAN interface/hardware setup.

Physical connection/wiring guidance.

CAN bus configuration, including baud rate where applicable.

Raw CAN data logging methodology.

CAN trace/log files from testing.

CAN ID/message mapping.

Decoded parameter list with:

CAN ID

Byte/bit position

Length

Scaling factor

Offset

Unit

Description

Identification of standard vs manufacturer-specific messages.

Sample software/scripts for capturing and processing CAN data.

Documentation explaining the complete setup so that our team can reproduce the process.

Preferred Technical Experience

Please apply if you have practical experience with one or more of the following:

CAN Bus

CAN FD

SAE J1939

OBD-II

UDS

Automotive Ethernet

Vehicle diagnostics

ECU communication

CAN reverse engineering

CAN decoding

Heavy commercial vehicles/trucks

Automotive telematics

Fleet management systems

Embedded automotive systems

SocketCAN

CANoe/CANalyzer

SavvyCAN

PCAN

Kvaser

Vector CAN tools

Arduino/ESP32/Raspberry Pi-based CAN interfaces

Python/C/C++ for CAN data processing

Ideal Freelancer

The ideal candidate should have hands-on experience working directly with vehicle CAN networks, preferably commercial vehicles or trucks.

Experience with Indian BS6 trucks or manufacturers operating in the Indian commercial-vehicle market would be a significant advantage.

We are looking for someone who can work practically with the vehicle and CAN logs, not just provide theoretical information.

Project Approach

Initially, we would like to work with one truck as a proof of concept.

The process would approximately be:

Truck → CAN interface → Raw CAN capture → CAN ID analysis → Message decoding → Vehicle parameters → Software/API integration

If the initial proof of concept is successful, there is potential for further work involving:

Multiple truck models

Multiple vehicle manufacturers

Automated CAN decoding

Telematics device integration

Real-time CAN data acquisition

Cloud/API integration

Fleet monitoring applications

Please Include in Your Proposal

To help us evaluate your experience, please provide:

A brief description of your CAN/automotive experience.

Examples of CAN reverse-engineering projects you have completed.

Whether you have worked with J1939 or heavy commercial vehicles.

Which CAN hardware/tools you normally use.

Whether you can physically guide us through the truck-side connection.

Examples of CAN logs or decoded CAN data you have worked with, if you can share them.

Your estimated time and cost for an initial proof of concept.

Any information you would need from us before starting.

Please mention “BS6 CAN” at the beginning of your proposal so we know you have read the complete requirement.

We are open to working with an individual freelancer or an experienced automotive/CAN engineering team.