ICE to EV Retrofit Electrical System & G-EVCC

RNL Technology (Shenzhen) Co., Ltd. is a specialized manufacturer of custom electric vehicle control units and power distribution systems. We supply end-to-end electrical architectures directly to vehicle conversion workshops, commercial fleet operators, and specialty vehicle builders focusing on ICE-to-EV (Internal Combustion Engine to Electric Vehicle) retrofits.

Converting a diesel or gas vehicle to electric power is a massive integration challenge. Our ICE to EV Retrofit Electrical System, centered around our proprietary G-EVCC (Electric Vehicle Communication Controller), solves this exact bottleneck. Operating across a 150V-600V range, this modular system bridges the gap between high-capacity lithium-ion packs (100kWh-300kWh) and the new electric drivetrain. By providing pre-calibrated BMS, VCU, and ISO 15118-compliant charging controllers, we allow fleet operators to repower their existing assets at a 20% lower cost compared to purchasing new EVs, while cutting workshop installation time by 35%.

G-EVCC Protocol Master: The core Electric Vehicle Communication Controller natively supports ISO 15118, SAE J1772, and IEC 61851.

300V-600V Modular Architecture: Engineered to support heavy-duty retrofits. The power distribution unit safely manages high-capacity battery packs (100kWh to 300kWh), making it ideal for commercial vans, light-duty trucks, and municipal fleets.

Chassis-Adaptive VCU Calibration: We do not just supply hardware; we provide the software logic. Our Vehicle Control Unit (VCU) is calibrated to maintain compatibility with the original vehicle's safety frameworks (like ABS and power steering) despite the altered weight distribution of the battery pack.

Strict Automotive Compliance: The entire electrical architecture undergoes over 1,800 hours of durability and vibration testing. It fully complies with critical EV safety standards, including ISO 6469, FMVSS 305, and GB/T 18384, ensuring your retrofitted vehicles are street-legal and safe.

Q: Are you a trading company or a direct R&D manufacturer?
A: We are a direct manufacturer and technology provider based in Shenzhen, China. We control the complete hardware manufacturing and software engineering processes for specialty EV controllers and power distribution solutions.

Q: What exactly does the G-EVCC do in a converted vehicle?
A: The G-EVCC is the brain that talks to the charging station. It handles the complex digital handshake required by modern DC fast chargers, authorizes the session, and tells the Battery Management System (BMS) how much current to safely accept.

Q: Can this system be adapted to older diesel delivery trucks?
A: Yes. Our modular 300V-600V architecture is specifically designed for commercial repowering. We provide the VCU logic to integrate the new electric powertrain while keeping the truck's original 12V/24V auxiliary systems (like wipers and lights) fully functional.

Q: Do you provide technical support during our first vehicle conversion?
A: Absolutely. We collaborate closely with conversion workshops and fleet operators. Our engineering team provides remote diagnostics, We also offer on-site technical assistance during critical integration phases and provide comprehensive documentation, including wiring harness schematics and CAN bus signal maps. All support is tailored to your specific vehicle architecture and regulatory requirements.

Expert Insight: The Hidden Challenge of Charging Protocols in EV Conversions

"In the ICE-to-EV retrofit industry, physically mounting the electric motor and battery is only 30% of the work. The real nightmare is the electrical integration, specifically the charging handshake. If you build a custom electric delivery van and plug it into a commercial CCS fast charger, the station will demand an ISO 15118 digital certificate. If your onboard controller cannot provide it, the vehicle simply will not charge. At RNL Technology, our G-EVCC acts as the master translator. It handles the complex cryptographic handshake with the public grid while simultaneously managing the BMS and VCU to ensure safe thermal limits. For conversion workshops, sourcing our pre-programmed G-EVCC means your retrofitted vehicles will charge reliably at any public station, right out of the garage."
                                                                                                                                                                    - Senior Powertrain Integration Engineer at RNL Technology