What does dmi mean?

Byd DMi system adopts plug-in design, which is a fuel-saving system, and the fuel-saving effect is better when driving short distances in urban areas. BYD Co., Ltd., founded in 1995, is a high-tech private enterprise with three industrial clusters of IT, automobile and new energy. 2. In just one year, BYD's product line has rapidly expanded from a single Fowler mini-car to a full line of products including A-class fuel vehicles, C-class fuel vehicles, lithium-ion electric vehicles and hybrid electric vehicles.