TechnicianVision · Knowledge base
Powertrain Overview: Electric Vehicles
I-CAR · April 30, 2019
Summary
This article provides an overview of Electric Vehicle (EV) powertrain components, including the high-voltage (HV) lithium-ion battery, inverter, AC electric motor, and cooling systems. It highlights the critical safety requirement of disabling the high-voltage system before performing repairs and disconnecting the 12V battery prior to welding.
What to do on the job
Properly disable the high-voltage battery using OEM-specific procedures before performing any service, and disconnect and isolate the 12V battery before welding.
How to use it
Use this document to justify line items for high-voltage system powering down/powering up (disabling/enabling), 12V battery disconnect/reconnect, and the use of specialized safety equipment and tooling required when handling heavy EV batteries.
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