Battle for plug-in range

BYD is competing with fellow Chinese carmaker Geely to produce a plug-in hybrid (PHEV) capable of clocking up 2,000km on a single fill-up and charge. 

The range has been pledged by both companies. It’s measured on the China Light-Duty Vehicle Test Cycle (CLTC) and its more generous ratings compared to the Worldwide Harmonised Light Vehicle Test Procedure.

Despite that, the distances these PHEVs will be able to cover without requiring a battery or petrol top-up is likely to capture buyers’ attention.

BYD plans to build on the technology used in its Song Plus DM-i model, pictured, which achieves a CLTC range of 1,151km via its four-cylinder and 1.5-litre engine, an electric motor and continuously variable transmission, all powered by lithium-iron phosphate batteries.

The brand’s next-generation plug-in hybrid system, slated to launch next year, promises to feature a more efficient engine and motor, and batteries with enhanced energy storage.

Geely, meanwhile, is aiming to leverage technology in its Galaxy L6 sedan. It features a 1.5-litre four-cylinder engine and a three-speed dual-hybrid transmission with electric motors powered by a 19.1kWh lithium-ion pack.

Currently, the L6 has an overall CTLC range of 1,370km on the CLTC cycle thanks to its dual-power sources and 192-litre fuel tank. The secret to Geely’s upcoming PHEV’s range appears to an enhanced reliance on electric power, aiming for a fuel economy rating of 2l/100 km.