BYD India recently introduced its DM-i (Dual Mode Intelligent) technology in India, bringing its globally established plug-in hybrid system to market. Designed as an electric-first hybrid powertrain, the technology combines a gasoline engine, electric motor and battery pack, while offering a claimed combined driving range of over 1,200 km.How does it work?Unlike conventional hybrid systems that rely primarily on the internal combustion engine, the DM-i is designed to operate on electric power for a significant portion of daily driving. The petrol engine is used primarily to generate power and support the battery when needed, although it can also drive the wheels directly under certain conditions such as constant highway speeds or high power demand.The system can work in three operating modes. In EV mode, the vehicle runs entirely on battery power. In series hybrid mode, the petrol engine acts as a generator to recharge the battery while the electric motor drives the wheels. In parallel hybrid mode, both the gasoline engine and the electric motor contribute to propulsion.A key component of the powertrain is BYD’s 1.5-litre Xiaoyun petrol engine, which the company claims achieves a thermal efficiency of 43.04 per cent. Working with electric motors and a hybrid control system, it is designed to balance performance and efficiency in a variety of driving conditions.BYD claims the technology can deliver fuel consumption of 4.8 liters per 100 km under NEDC testing and enable 0-100 km/h acceleration in under 5.5 seconds in certain applications. The company also claims that the system offers lower noise and vibration levels than conventional petrol-powered vehicles.The DM-i package includes BYD’s Blade battery technology, which is already used in several of the company’s electric vehicles. According to BYD, the battery has been developed with a focus on safety, durability and thermal stability. The technology could be particularly relevant for the Indian market, where charging infrastructure and long-range usability remain concerns for some potential EV buyers. By combining the capability of electric-only driving with the flexibility of a gasoline engine, the DM-i aims to reduce dependence on charging networks while maintaining the benefits of electric mobility.BYD’s experience in the plug-in hybrid segment dates back to 2008 with the launch of the F3DM, which the company describes as the world’s first mass-produced plug-in hybrid vehicle. Since then, BYD has sold more than 8 million plug-in hybrid vehicles globally and currently accounts for more than 35 percent of the global PHEV market.The introduction of the DM-i is part of BYD’s wider plans for India. The company recently crossed the milestone of 14,000 customers in the country and plans to further expand its product portfolio. With its electric-focused operating strategy and extended driving range, the DM-i is expected to play an important role in BYD’s future offerings for the Indian market.
