Chargebyte’s CCL MCS Brings ISO 15118-20 over Ethernet to Megawatt Charging for Heavy-Duty EVs

Why It Matters

By moving MCS communication to Ethernet and consolidating functions into a single ECU, OEMs can accelerate megawatt‑level EV deployment while cutting development costs and improving reliability.

Key Takeaways

• CCL MCS handles full ISO 15118‑20 stack for megawatt charging
• Uses 10BASE‑T1S Ethernet, replacing PLC for lower latency
• Built on dual NXP S32K146 processors for redundancy
• Integrates HV interlock, switch control, inlet management, temperature monitoring
• Rugged IP6K9K rating, operates –40 °C to +85 °C

Pulse Analysis

The rise of megawatt charging for heavy‑duty electric trucks and buses is reshaping the commercial vehicle landscape. ISO 15118‑20 defines a secure, bidirectional communication protocol that enables features such as smart charging, grid services, and automated billing. However, implementing this stack at megawatt power levels has been hampered by legacy power‑line communication (PLC) methods, which struggle with latency and electromagnetic interference. Chargebyte’s CCL MCS addresses this gap by delivering a purpose‑built controller that meets the stringent requirements of the Megawatt Charging System while adhering to the latest ISO standards.

At the heart of the CCL MCS is a pair of NXP S32K146 microcontrollers, providing processing redundancy and real‑time safety monitoring. The shift to 10BASE‑T1S single‑pair Ethernet brings deterministic, low‑latency data exchange and superior noise immunity compared with PLC, crucial for the high‑current environments of MCS. By consolidating functions—HV interlock, switch control, inlet management, temperature sensing, and firmware updates—into one rugged ECU, manufacturers can eliminate additional ECUs, reduce wiring complexity, and streamline certification processes. The IP6K9K rating ensures the unit withstands harsh industrial conditions, from sub‑zero temperatures to extreme dust and water exposure.

For OEMs and body builders, the CCL MCS represents a ready‑to‑integrate solution that accelerates time‑to‑market for electric trucks and heavy equipment. With pre‑orders already open, the controller enables rapid deployment of MCS infrastructure, supporting fleet operators seeking to meet tightening emissions regulations and customer demand for longer range and faster charging. As megawatt charging networks expand across North America and Europe, products like Chargebyte’s Ethernet‑based controller will become a cornerstone of the next generation of commercial EVs, driving both cost efficiencies and competitive differentiation.