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Driving Innovation: How Precisol’s CAN Bus Gateways Revolutionize EV Field Testing and Remote Monitoring
The electric vehicle (EV) revolution is accelerating, bringing with it complex engineering challenges. Before a new EV model hits the market, it undergoes rigorous field testing – a crucial phase where prototypes are pushed to their limits in real-world conditions. This process generates an immense amount of data, vital for validating performance, identifying bugs, and ensuring the vehicle’s efficiency, reliability, and safety. At the heart of this data lies the CAN (Controller Area Network) bus, the internal communication backbone connecting virtually every electronic control unit (ECU) within the EV.
The Bottleneck of Traditional EV Field Testing
Historically, collecting data during EV field testing has been a cumbersome process. Engineers would often rely on:
- Manual Downloads: Physically connecting laptops to the vehicle’s diagnostic port after each test drive to extract logged data. This is time-consuming and provides only retrospective insights.
- Limited Real-time View: Without continuous live data, it’s challenging to observe transient anomalies or react to critical events as they happen on the road.
- Geographical Constraints: Testing often occurs in remote or diverse environments, making immediate data access or on-the-spot troubleshooting difficult and costly.
- Debugging Delays: Pinpointing the root cause of an intermittent software glitch or hardware malfunction can be a lengthy process without a comprehensive, synchronized view of the vehicle’s internal communications.
These limitations can significantly slow down the development cycle, increase operational costs, and delay market readiness for innovative EV models.
The Game-Changer: Precisol’s CAN Bus Gateways for Remote Monitoring
Precisol’s CAN bus gateway – a powerful device that transforms EV field testing from a reactive, manual process into a proactive, data-driven operation. A CAN bus gateway acts as an intelligent bridge, connecting the vehicle’s internal CAN network to external communication channels, typically via cellular networks.
Here’s how it works:
- Direct CAN Bus Connection: The gateway is installed in the test EV, directly tapping into one or more of the vehicle’s CAN buses (e.g., powertrain, chassis, battery management system).
- Intelligent Data Acquisition: It’s configured to read raw CAN messages periodically– the digital “conversations” between ECUs. The periodicity and the CAN bus settings are configurable over USB or over-the-air. This acquired CAN frames includes a wealth of critical data points such as :
- Battery Management System (BMS) data: Real-time State of Charge (SoC), individual cell voltages, temperatures, and overall State of Health (SoH).
- Motor Control Unit (MCU) data: Motor RPM, torque, current draw, and temperature.
- Charging System data: Live charging status, voltage, current, and energy transferred.
- Vehicle Diagnostics: Instantaneous diagnostic trouble codes (DTCs) and warning light statuses.
- Vehicle Telematics: Integrated GNSS (GPS) provides precise location, speed, and route information.
- Secure Remote Transmission: The gateway, equipped with an integrated LTE cellular modem, securely transmits this comprehensive, time-stamped raw CAN frames in real-time to a cloud-based engineering or analytics platform. This ensures continuous monitoring, regardless of where the vehicle is being tested.
- Cloud-Based Analysis and Alerts: Precisol’s CAN bus Gateways can upload the acquired raw CAN frames in industry standard MF4 format to configured AWS S3 bucket with secure HTTPs protocol. Engineers and data scientists can develop their own live dashboards, convert the raw frames, manipulate, visualize trends, and set up automated alerts for any critical events – a sudden battery temperature spike, an unexpected motor overcurrent, or a new diagnostic fault code.
The Benefits: Driving Efficiency and Innovation
The integration of CAN bus gateways for remote EV monitoring offers transformative advantages:
- Real-time Diagnostic Insights: Engineers gain immediate visibility into vehicle performance, allowing them to identify and react to anomalies as they occur during a test drive, even from a remote office.
- Accelerated Debugging: With continuous, synchronized CAN data, pinpointing the root cause of intermittent software or hardware issues becomes significantly faster and more precise.
- Optimized Performance: Granular data on battery discharge, motor efficiency, and regenerative braking allows engineers to fine-tune algorithms, leading to improved range, power delivery, and overall EV efficiency.
- Reduced Testing Cycles and Costs: Remote data collection and rapid debugging significantly shorten the field-testing phase, cutting down on labour, travel, and overall development expenditures.
- Enhanced Reliability and Safety: Proactive identification of potential issues before they escalate into failures leads to a more robust and safer final product.
In essence, CAN bus gateways are not just data conduits; they are enablers of rapid innovation in the EV sector. By transforming how critical vehicle data is collected and analyzed, they empower manufacturers to bring more efficient, reliable, and safer electric vehicles to market faster.
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Arima Leonardo
Electrician
Alex Piter
Designer
Mariya Komola
Developer
David Malan
Developer
Arima Leonardo
Electrician
Alex Piter
Designer
Mariya Komola
Developer
David Malan
Developer
