Equipped with BYD's DM-i super hybrid Qin PLUS DM-i, Song PLUS DM-i and Tang DM-i have been sold on the market for more than half a year, the degree of popularity is obvious, even if you want to buy DM-i models now, the pick-up cycle will take more than a month.
Compared with the previous DM-P with acceleration performance as the selling point, DM-i is BYD's opening up a branch road on the basis of the main line of plug-in hybrid, focusing on high efficiency and energy saving. DM-i hybrid system by the Snap cloud hybrid special 1.5L/1.5T engine, EHS electromix system, blade battery, drive motor composition, the most concerned is that the system in the feed state of fuel consumption performance is still stable, in other words, even if you buy back has not been charged, it as a fuel vehicle to drive, you can still get a good fuel economy.
Seeing this, I believe that some friends will have doubts, since the DM-i hybrid is so powerful, why is there no HEV hybrid model choice?
Ordinary plug-in hybrids are completely two states in the state of battery power and no electricity, when the power is sufficient, because of the assistance of the motor, not only excellent acceleration performance, but also take into account a better fuel consumption performance. However, in the state of power loss, due to the lack of reasonable energy drive logic, coupled with an extra set of electric drive system, the weight of the whole vehicle will be obvious, and the load on the engine will be greater.
And BYD's DM-i hybrid system in the power deficit state still has a very good fuel economy, to the Song PLUS DM-I 51km version as an example, the comprehensive fuel consumption in the normal driving state is 1.5L/100km, while the battery power loss state is 4.4L/100km, although the gap is very large, but compared to the 4.7L/100km and CR-V hybrid 4.9L/100km that we are familiar with, there is even a little advantage. This also shows that even if BYD has a HEV hybrid model, it is not meaningful, after all, the fuel consumption is already low enough.
In addition, plug-in hybrids can enjoy national new energy subsidies, can be green cards in all limited cities except Beijing, and HEV oil-electric hybrids can not enjoy such treatment, and the use of this form of power is equivalent to putting themselves on the platform compared with the two fields of hybrid, although now BYD's reputation has made great progress, but compared to the Japanese "two fields", the distance is still visible to the naked eye.
This is not about power performance, fuel economy or driving experience, but about consumers' reliance on the quality of "two fields". To achieve such a reputation, it naturally takes a long time to accumulate to complete, and it is obvious that the current BYD cannot reach such a height. Therefore, the choice of the relatively weak plug-in hybrid market in Japan is a more correct decision.
In addition, in the process of using the car, plug-in hybrid can support pure electric driving, also to the Song PLUS DM-i example, the start-up version of the model battery capacity of 8.3kWh, NEDC pure electric mileage of 51km, high-end models also provide 18.3kWh large-capacity version, can drive continuously 110km, if the home has a fixed parking space and charging pile, can be used as an electric vehicle, so that the cost of travel is further reduced.
summary
On the whole, the reason why BYD DM-i does not choose HEV oil-electric hybrid has been very clear, first of all, this plug-in hybrid system is mature enough to solve the problem of rising energy consumption at a loss of electricity, followed by the marketing strategy, plug-in hybrid can better adapt to the current market, especially for consumers in large cities, and can also avoid direct confrontation with "two fields".