Recently, I don't know if you have found it, many manufacturers will add a range extension mode when launching plug-in hybrid models, such as Lynk & Co's EM-P model, Changan Qiyuan's A05 true fragrance version, etc., and more and more car companies are launching extended range electric vehicle models, and now extended range electric vehicles seem to be getting wider and wider. In addition, the sales of brands such as Wenjie, Ideal, Leap, and Deep Blue are getting better and better, which further strengthens this trend.
So from the past few years to the present, many manufacturers are criticizing the backward technology of extended-range electric vehicles, which is not as good as plug-in hybrid, especially the advanced technology of multi-gear plug-in hybrid models, but more and more car companies have joined the extended range track, and many plug-in hybrid models have also joined the extended range mode, which means that the market and consumers are more and more recognized for extended range electric vehicles, and it is useless for manufacturers to talk about it, so they either directly push the extended range or join the extended range mode. Why is this happening?
First of all, we have to say the opposite, the gearbox has never been a reflection of the advanced thing, in the fuel vehicle, the gearbox is a compromise component, that is, because the engine has no way to maintain the best working range without the gearbox, so the gearbox is needed to adjust, so that the energy consumption of the engine is lower, and the efficiency is stronger under different working conditions. So if the engine can be self-adjusting, or can always be in the optimal operating range, the engine can be without.
Now when it comes to electric drive models, whether it is a hybrid or a model that can be oiled or electric, in essence, the efficiency of the electric motor is higher than that of the internal combustion engine, and as soon as the motor starts, it is the maximum torque range, so it is completely dependent on the motor, and it can also achieve full coverage from low speed to high speed. So we insist that when it comes to electric drive, using a multi-speed gearbox is a step backwards.
So let's go back to the multi-speed DHT that many models are equipped with, the significance of the existence of these gearboxes is either to reduce fuel consumption at high speeds, or to increase the top speed to make up for the lack of motor or engine speed, but these two changes are meaningless for many consumers.
Many small partners have purchased range extension and plug-in hybrid, and most of the time and mileage are spent on short-distance commuting, that is, pure electric driving, and in the case of pure electric driving, multi-speed gearboxes are useless at all. The fuel consumption of long-distance travel, such as extended range and single-speed transmission plug-in hybrid models, is not much higher than that of multi-gear DHT models, plus most ordinary models, do not pursue higher top speed, so multi-gear DHT does not have many advantages.
However, the disadvantages of multi-gear DHT are also particularly obvious, first of all, many models equipped with multi-gear DHT have shift frustrations, we have found several during the test drive, such as extended range electric vehicles and BYD's DM-i models, this is not the case. Moreover, due to the complex structure, the cost of multi-gear DHT models will be higher, and the probability of failure will be higher!
Here you can give an example, such as latte DHT-PHEV, this car length 4668mm compact SUV model, the starting price is 229,000 yuan, and the length of the 4750mm dark blue S7 200 km model, the starting price is only 169,900 yuan!
So everyone can see that, in fact, for many consumers, the extended-range electric vehicle with simple structure, relatively low price, and longer pure electric battery life is to be better used than the model equipped with multi-gear plug-in hybrid, whether it is to save money or in the landing of high-end intelligent driving. The advantage of multi-gear DHT is the loss of electric fuel consumption and extreme speed performance, but the disadvantage is that the cost is high, the failure rate is relatively higher, and there will be a shift setback.