1. Subsidy policy
There are reasons behind the development of any product, and there are certainly reasons for the setting of the pure electric range of 50-100km of plug-in hybrid vehicles, the first is the national policy.
At present, the national subsidy standard for plug-in hybrid electric vehicles is divided into two grades, with a pure electric driving range of 50-80km for one grade, and greater than or equal to 80km for the other grade. Since you can meet the requirements of the state within 100km, get subsidies, and get the full subsidy of 25,000, why bother to add more pure electric mileage?
After all, the cost of the power battery needs at least 1000 yuan per degree, and more than 1 degree of electricity can only run about 8km more (different models have different power consumption), so comprehensive consideration of state subsidies and power battery cost problems, in input and output, just reach 50km life is the most cost-effective, This is also the main reason why most plug-in hybrid vehicles have a range of just 50km under pure electric conditions.
2. Vehicle structure
Unlike pure electric vehicles, most plug-in hybrid vehicles are built based on the fuel vehicle platform, and the chassis space is limited, which does not allow too many power batteries to be installed. In fact, owners who are used to fuel vehicles, especially fuel SUVs, and then go to the plug-in hybrid SUV will have obvious inadaptability, the floor as a whole is raised a lot, even if the seat looks wide, still can not give enough support to the thigh, clearly to the "sofa", sit up like a "small bench", all thanks to the battery.
In addition, due to the existence of two sets of power systems, the maintenance quality of the plug-in hybrid vehicle will be significantly higher than that of the fuel vehicle on the same platform, so that the power consumption will be high in the case of pure electric endurance. The car will be stuck without batteries, not enough battery life; With the battery, there is not enough space, and the battery life is still not enough.
Of course, there are some "tough roles" on the market that do not consider costs and subsidies, such as BYD Tang DM high configuration version, it chooses to increase the energy density of the power battery, the battery capacity is 23.97 degrees, in order to improve the range, pure electricity can travel 100km, quite real.
3. Travel scenario
In addition to the previous policy and design reasons, it is also necessary to analyze the use of plug-in hybrid vehicles. First of all, consumers who choose plug-in hybrid vehicles, their main vehicle scenarios are generally for daily travel, and the pure electric life of about 50-100km can basically meet the vast majority of vehicle needs.
At the same time, if the owner has the conditions to install the charging pile at home, it can be charged with it, normal commuting, about 50-100km a day, the range of pure electric mode is almost enough, run long distances, you can refuel and use the engine to drive; If the owner of the home is not installed charging pile (as far as I know, this part of the vast majority of people, one is no condition, the second is not necessary), 95% of the time the car is in the traditional gasoline car mode of operation, many owners think that direct refueling is more convenient, will not use pure electric mode, buy plug-in hybrid owners because of the national and local preferential policies (unlimited license, unlimited line).
In this way, the plug-in hybrid is more like a cover, which further encourages manufacturers to produce plug-in hybrid cars with a pure electric range of only 50km. Buy a house to sell unspoken, happy.