What is the difference between DM and DMI?

[DeCarlos]

The differences between DM and DMI are: 1. Different functions: The DM engine can charge the battery and provide power output; the DMI engine is a pure generator and cannot provide power output. The length, width, and height of both DM and DMI are: 4870mm, 1950mm, 1727mm, with a wheelbase of 2820mm, maximum power of 145kw, maximum torque of 316nm, and a fuel tank capacity of 53l. Both DM and DMI have front-wheel drive, with front suspension type being MacPherson independent suspension and rear suspension type being multi-link independent suspension.

[OZoey]

I've driven both DM and DMI versions of cars, and the difference is quite noticeable. The DM system feels like an athlete, with an exhilarating push-back sensation during acceleration, especially when overtaking on highways. However, the downside is obvious—when the battery is low, fuel consumption skyrockets, almost like drinking oil. On the other hand, DMI is more like a meticulous housekeeper. It prioritizes electric drive, and the engine mostly operates within an efficient range, so fuel consumption remains stable regardless of the battery level. I drive the Song PLUS DMI daily for commuting, and even when the battery is depleted, the fuel consumption is only around 5 liters, cutting my commuting costs by half compared to my colleagues' fuel-powered cars. Another advantage of DMI is its exceptionally smooth driving experience, with almost no jerking. If I were to recommend, for those seeking driving excitement, go for DM; for those prioritizing economy and practicality, DMI is the way to go.

[CamillaLynn]

As an average car owner, what matters most are the cost of ownership and hassle-free experience. DM vehicles are indeed fuel-efficient when fully charged. Once I drove the Tang DM for 50 kilometers purely on electric power, spending only a few yuan on electricity. However, the issue is that fuel consumption skyrockets when the battery is depleted, reaching up to 9 liters per 100km on highways, essentially turning into a gas guzzler. The DMI system is much smarter, employing a dual-motor design where the engine primarily operates at optimal RPM to generate electricity, while the drive wheels are controlled by the electric motor. Recently, driving the Qin PLUS DMI to take my kids to school, even when forgetting to charge, it maintained just over 4 liters per 100km. With 200 yuan worth of fuel, it can cover nearly 1,000 kilometers. In terms of maintenance, the DMI's mechanical structure is simpler than DM's, with my first service costing just over 300 yuan. If you ask me, when buying a hybrid now, you really should opt for newer systems like DMI.

[MicahRose]

From a technical perspective, DM and DMI are completely different in design logic. The DM system requires the engine to both generate electricity and participate in driving, similar to a three-legged race where poor coordination easily leads to energy waste. Especially when the battery is low, the engine has to both charge and provide power, placing a significant burden on it. In contrast, DMI clearly separates the tasks: the engine specializes in generating electricity within the high-efficiency range, while the motor is dedicated to driving the vehicle. This is like the division of labor in a factory assembly line, naturally reducing energy consumption. I have studied data from both systems, and DMI achieves a thermal efficiency of 43%, a 15% improvement over the older DM model. The battery management is also more intelligent, with fast charging restoring 80% of the battery in just half an hour. These technological upgrades make DMI better suited to current energy-saving and environmentally friendly driving needs.

[LylaLee]

When buying a second car for our family, I carefully compared these two types of vehicles. The DM system technology is relatively older and more suitable for users who enjoy a sporty driving feel, especially when accelerating from traffic lights to overtake easily. However, in actual driving, frequent charging can be quite troublesome, and the fuel consumption isn't low during long business trips. The Han DMI we currently drive is different—its switch to lithium iron phosphate batteries makes it safer, and it barely uses any fuel during daily commutes. On congested roads when taking elderly family members to the hospital, the fuel consumption is only 4.6L/100km, saving 30% on fuel costs compared to colleagues' cars of the same size. Maintenance costs are also crucial; with the simplified transmission structure of the DMI, the service interval has been extended to 7,500 kilometers. Overall, the DMI is more suitable for average families who prioritize long-term cost efficiency.