Automotive Embedded Charging Engine & ISO 15118 Protocol Stack

ChargingEngine provides an ASIL-ready embedded software runtime that executes complex ISO 15118 charging sessions with millisecond determinism. With hardware-accelerated mutual TLS cryptographic handshakes, dynamic contract certificate routing, and formally proven fault recovery transitions, it prevents charging station lockups.

Eliminating Interoperability Nightmares at Public High-Power Chargers

A shocking 20% of public EV charging attempts fail due to protocol timeouts, certificate validation mismatches, and undefined state machine lockups. ChargingEngine re-architects the in-vehicle charging stack with strict memory safety and rigorous error-recovery semantics to guarantee 99.99% first-time plug-in success.

Core Engineering Areas

• ISO 15118-20 Stack Architecture — Full implementation of ISO 15118-20 encompassing bidirectional DC power transfer, automated conductive charging, and dynamic control modes.
• Plug & Charge PKI Engine — Managing root certificate storage, OEM provisioning certificates, and contract credentials in an automotive Hardware Security Module (HSM).
• Formal State Machine Recovery — TLA+ mathematically proven state transitions governing contactor welding detection, isolation checking, and emergency stop handshakes.

Technical Articles

• Building Memory-Safe ISO 15118 Stacks on Microcontrollers
• Hardware Cryptographic Acceleration for Sub-100ms Plug & Charge

Related Cluster Architecture Specifications

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• A2HumanCard — Standardized In-Vehicle AI Agent Capability Discovery, Trust & Authorization Cards
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