High-voltage electric drivetrain integrated into a specialist vehicle chassis

Specialist EV engineering

High-Voltage EV System Integration

Safe, serviceable high-voltage architecture for EV conversions, workshop builds and prototype vehicles.
Discuss your HV system

Direct answer

What is high-voltage EV system integration?

It is the engineering work that makes the battery, inverter, charger, DC-DC converter and safety controls operate as one protected, testable vehicle system. It covers architecture, contactors, precharge, fusing, isolation, cable routing, shutdown logic and commissioning.

Who this is for

Focused support at the right project stage

For conversion workshops, kit manufacturers, prototype teams and private projects that need an HV design review, a defined integration package or help making an existing installation safe and serviceable.

What VASS can help with

Defined engineering scope

  • HV architecture and component compatibility
  • Contactor, precharge, fuse and service-disconnect strategy
  • Cable sizing, routing, shielding and enclosure interfaces
  • Shutdown logic, interlocks, labelling and commissioning records

Common problems solved

From uncertainty to a clear next step

  • Contactors that will not close or precharge correctly
  • Unsafe or unclear isolation and emergency shutdown behaviour
  • HV cable routes with poor protection or service access
  • Components that work individually but not as a complete system

Frequently asked questions

Useful answers before an enquiry

A few clear answers to help you decide whether VASS is the right fit before getting in touch.

Can VASS review an existing high-voltage installation?

Yes. VASS can assess the architecture, protection, cable routing, control logic and documentation, then define the priority work needed.

Does VASS supply a complete HV system?

Scope is project-led. Support can range from design review and selected integration work to a broader vehicle system package.

What information helps before an HV enquiry?

Share the vehicle, component list, system voltage, wiring information, current build stage and the specific behaviour or concern.

Start a conversation

Discuss your HV system

Tell us about the vehicle, the work already completed and the outcome you need. VASS will suggest a practical next step.

Discuss your HV system