Product & Technology · HCU-128™

Engineering-complete.
Manufacturing-ready.

Built to aerospace-adjacent standards. HCU-128™ is not a mechanical add-on — it is a software intelligence layer that transforms any diesel engine. Patent CA 3,280,535 active.

How HCU-128™ Works

Per-cylinder precision. Real-time adaptive control.

01

H₂ Stored at 350 bar

High-pressure composite cylinders (CSA HGV 3.1) behind cab. Reduced to ~3 bar via regulator.

02

Per-Cylinder Injection

H₂ metered directly to each cylinder — not the manifold — enabling precise dosing and better combustion.

03

HCU-128™ Adaptive Control

ARM Cortex-M7 monitors RPM, load, temp in real-time. Closed-loop mass-flow control. Torque-based blending logic.

04

Enhanced Combustion

Hydrogen's 9× faster flame speed promotes more complete diesel combustion — same power, less fuel.

05

Triple-Redundant Safety

SW shutdown + solenoid cutoff + hard-line isolation. Leak detectors. Thermal PRDs. ISO 26262 certified.

Component Specifications

Built to last 10+ years in the harshest conditions.

Injector Rail
7075-T6 anodized aluminum, SS316L bosses, O-ring per ISO 19880-1, per-cylinder precision metering
HCU-128™ ECU
ARM Cortex-M7, IP67, conformal-coated FR4 PCB, dual-channel validation, watchdog timers
Firmware
Proportional PWM, real-time feedback, OTA updates, CAN/J1939/RS-232, predictive derate algorithms
Harness
TXL conductors, AMPSEAL/Deutsch DT sealed connectors, shielded twisted pairs, EMI per ISO 16750
Safety System
Triple redundancy: SW shutdown + solenoid cutoff + hard-line isolation. ISO 26262 kernel. PRDs.
Adapter Plate
Universal engine interface, zero permanent modification, OEM warranty pathway preserved
Certifications & Standards

Every relevant standard. In scope from Day 1.

SAE J2579H₂ Vehicle Safety System
ISO 26262Functional Safety
SAE J1455Automotive Environmental
ISO 19880-1H₂ Fueling Infrastructure
ISO 2768Manufacturing Tolerances
ISO 16750Road Vehicle EMI
UN ECE R10Electromagnetic Compatibility
CSA HGV 3.1H₂ Storage Cylinders
CAN/ULC S341H₂ Detection Systems

Element 72 First-Mover: NRCan classifies H₂ dual-fuel retrofits as "Element 72 — Partial Gap" in Canada's H₂ Codes & Standards Roadmap. Hydrix enters now to help shape the standard, not just comply with it.

Technology Advantage & Defensibility

Three moats that compound.

Proprietary hardware + adaptive software + clear regulatory pathway. Each layer reinforces the others.

FeatureHYDRIX™ HCU-128™Battery-ElectricConventional H₂ Intake
Upfront Cost~CAD $54,900>CAD $400,000CAD $15–25K (low efficacy)
Diesel Displacement35–70%100%10–25%
Payback Period<12 months>7 years4–6 years
Per-Cylinder Injection✓ YesN/A✗ No — manifold only
ECU IntegrationFull (CAN/J1939)N/ANone
OTA Updates✓ Yes✓ Yes✗ No
Reversible✓ Fully✗ NoPartial
AI/Predictive ML✓ Yes✓ Yes✗ No
Available Now✓ Yes2026–2028Limited

DD15 Specialization

Purpose-built for Canada's most common Class 8 engine — 113,000 trucks. Deeper engineering, faster installation, better displacement than generalist competitors.

Patent CA 3,280,535

Active Canadian IP covers the mechanical integration method, injector rail design, and HCU-128™ adaptive blending algorithms in a nascent, forming market.

OTA + Intelligence Platform

Remote diagnostics and fleet analytics create defensible recurring SaaS revenue layered on top of the hardware business — $18M/yr ARR potential at 10K trucks.

Build Readiness

Manufacturing-ready today.

CAD/CAM files complete
Bill of Materials finalized
Supplier shortlist documented
FMEA conducted
Patent CA 3,280,535
Test & validation plan
Regulatory pathway defined
Transport Canada pre-consultation

Manufacturing Partners: Protolabs · Xometry · Sanmina · Celestica · H₂ suppliers: Air Products · Linde · HTEC · Atura Power

Ready to see the numbers?

Run your fleet through the ROI calculator — or request the full technical brief from the team.