Charging, conversion, and distribution
A CDU may combine OBC, DC/DC, and high-voltage PDU functions where the vehicle architecture benefits from coordinated packaging and interfaces.
Project-based CDU integration
custom CDU · Integrated product category / custom engineering capability
Custom OBC, DC/DC and PDU Integrated CDU Solutions
TRHT reviews Combined Distribution Unit architectures that bring charging, low-voltage conversion, high-voltage distribution, protection, interfaces, and packaging into a vehicle-specific design. Final functions and ratings depend on the project definition.
What a Combined Distribution Unit may integrate
Protection, communication, cooling, and enclosure interfaces
Contactors, fuses, sensing, CAN/LIN or discrete control, cooling ports, connectors, HVIL, and mounting can be reviewed as an integrated interface problem.
TRHT project-based CDU engineering scope
Engineering review covers the vehicle SLD, power-flow roles, isolation and protection, low-voltage outputs, communications, thermal interfaces, connector strategy, packaging, service access, and validation planning.
Reference integration direction
11kW OBC plus 3kW DC/DC as a reference only
The 11kW OBC and 3kW DC/DC combination is a reference direction from controlled material, not a fixed released CDU specification or a universal vehicle platform.
Information required for CDU evaluation
- Vehicle voltage window, load map, OBC/DC/DC roles and duty
- HV/LV isolation, protection, pre-charge, sensing, and control requirements
- CAN/LIN or discrete interfaces, diagnostics, and software ownership
- Cooling, connectors, enclosure, mounting, environment, service, and project stage
Architecture, thermal, communication, and validation boundaries
Final electrical, thermal, mechanical, interface, and validation limits are confirmed from project data. Reference values are not universal released ratings.
Integration decisions must be checked against thermal paths, EMC/interface assumptions, service strategy, drawings, BOM, DVP&R, and EOL criteria before release.
Evidence context
Real TRHT engineering and testing context
These visuals support a conservative engineering and workmanship context. They do not identify an exact model or prove a universal rating, certification, customer case, or completed validation result.
Buyer questions
Frequently asked questions
What is a Combined Distribution Unit?
A CDU is a project-defined integration of vehicle charging, low-voltage conversion, high-voltage distribution, and related protection/interfaces.
Is 11kW OBC plus 3kW DC/DC a fixed product?
No. It is a reference integration direction only; final power, interfaces, cooling, and packaging depend on the vehicle project.
What vehicle data are required?
Provide the SLD, voltage/current duty, load map, control interfaces, protection, cooling, connectors, envelope, environment, service, and project stage.
How does a CDU differ from an EV PDU?
A CDU may integrate charging and conversion with distribution, while an EV PDU focuses on high-voltage distribution/protection. The architecture determines whether functions are combined.
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Related TRHT resources
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