Plug-in hybrids, extended-range electric Who is better?
Since the energy crisis, the human demand for energy-efficient vehicles has become more and more urgent, and hybrid power was born. late 20th world, the technical route of hybrid power by the major car companies to pay attention to, the more prominent energy efficiency is Toyota and General Motors, both of which use a planetary gear set for power distribution.
After more than 20 years of development, the core structure of today's hybrids is not limited to planetary gear sets, and the mastery of hybrid technology is not limited to Toyota and GM. Come to the new energy era, these hybrid technologies plus a large battery, transformed into a plug-in hybrid, it has charging and refueling two forms of complementary energy, can take into account the "low fuel consumption" and "no range anxiety", is by far the most suitable for our national conditions of the drive form.
When discussing low fuel consumption and no range anxiety, a special technology line must be inseparable, and it is the add-on program.
There has been much controversy in the industry about whether incremental electric technology is backward and should be eliminated.
Li Xiang, the founder of LEADING IDEAL, said at the Q2 earnings meeting, "Looking back five years, the extended-range program is still the best solution for SUVs." And Huawei Yu Chengdong is also bullish on the extended-range program and pointed out, "It will take time for the current charging pile to be perfected and popularized, and the extended-range model is the most suitable new energy vehicle model at present."
Of course, there are those who have a different attitude.
VW China CEO Sihan Feng said, "The extended program electric vehicle is not as environmentally friendly as one might think, and from the perspective of the entire country and the planet, burning fossil fuels to generate electricity for the car's powertrain is a "bad solution"." Li Ruifeng, CEO of Great Wall Wei brand, even said in several posts on social media platforms that "it is an industry consensus that the technology of extended program hybrid is backward, and that extended program EV is a lower threshold and outdated technology and pointed out that the essence of the extended program is a tandem plug-in hybrid.
Who is better, the plug-in hybrid or the extended electric?
First of all, there are two modes of operation: pure electric and tandem, in which the engine drives the generator to generate electricity and then drives the wheels in tandem. Because of the structural limitations, the engine of the program can not directly drive the wheels, which wastes the power of the engine, and the efficiency of high-speed cruising conditions "first generate electricity and then drive with electricity" is not as high as the engine direct drive.
There are four common forms of plug-in hybrid drive, in addition to pure electricity, series, because the engine can drive the wheels, so more parallel and direct drive two modes. A parallel can make full use of the engine power, in high-speed cruising conditions direct drive is also more efficient overall.
So from the perspective of energy conversion efficiency, plug-in hybrids are more efficient than add-on electric.
Others may say, "The add-on is more reliable without the complex structure of the transmission."
But the problem is like BYD DM-i, DM-p, and Honda i-MMD (plug-in version) these are no traditional sense of the transmission, ah, so plug-in hybrid and "complex structure of the transmission" is not necessarily related, just depends on the specific technical line of difference.
