Thermal management: the hidden plumbing
An electric car needs coordinated temperature control for its battery, propulsion electronics and cabin. The thermal system is an important part of the vehicle’s efficiency story.
Canvas of Knowledge · 14 November 2026 · Illustrated explainerMORE THAN COOLING
Cold cells may need warming; hard charging and driving can require heat removal. The objective is to keep components within suitable operating conditions, not simply to make everything as cold as possible.
BYD EXAMPLE
BYD’s European SEAL launch described a heat pump, direct battery heating and cooling, and the recovery of powertrain waste heat. Implementation and equipment differ by model and market.
A GLOBAL PROBLEM
US national-laboratory research also investigates combining vehicle thermal loops and reusing waste heat. These are shared engineering goals, with different valves, layouts, controls and validation in each system.
THE IDEA TO KEEPThermal engineering connects comfort, charging performance and energy consumption.
Sources & further reading
- BYD UK Media · SEAL thermal management →
- NREL and industry researchers · Total Thermal Management of BEVs →
Sources reviewed 14 November 2026. Specifications and availability depend on the product, market and date. Source organisations do not endorse this website.