If you find two more representative models in the field of new energy, it seems that it is not difficult to choose, especially if traditional car companies are involved in the field of new energy, they must first play a conservative card to start and launch a variety of SUV models, trying to cover up all flaws with the single feature of "practicality".
Admittedly, SUVs have enough "practical" for consumers, which is indeed an attraction point. If it's not practical, what's the point of spending money on it? Returning to the theme, if the author narrows the scope to the category of family cars, it seems that "practical" may not be the primary feature, which will also be mixed with "appearance", "shape", "control" and other different elements.
The author will select two new energy cars as a comparison, the appearance and shape design of this kind of appearance and perception of the likes and dislikes, the author does not discuss in depth here, but to "control" as the premise, talk about the differences in the functional design of the two cars. These two models are BYD Han, which is a veteran car company, and Xiaopeng P7, a new upstart in the car industry, and the above models are based on the top as a reference comparison.
Ten years of grinding a sword Han is the end of the view
Bydir Han's front suspension uses McPherson independent suspension, while the rear suspension uses the multi-link independent suspension common in new energy models, equipped with DiSus-C intelligent electronically controlled active suspension, Brembo four-piston caliper kit and horse brand MC6 tires.
Although BYD has always used the new energy flagship sedan as a selling point, it also boasts a wind resistance coefficient and extraordinary power performance. But looking back at the chassis structure and auxiliary supporting of the car, the front McPherson independent suspension is not unfamiliar to veteran fans, and the early family cars basically used the McPherson independent suspension, in order to provide more handling flexibility in the case of the front drive.
Then the multi-link independent suspension is basically the standard of the model with control as the selling point, of course, it is also related to the size of the model and the space layout. The goal is that the wheels are adjusted to the maximum extent under the constraints of the connecting rods, so the tuning of the multi-link is also extremely complex, but the dynamic performance obtained is better than the rest of the suspension structure.
Finally, there is the DiSus-C intelligent electronically controlled active suspension and the matching method of the HORSE MC6 tire. To be honest, BYD's DiSus-C intelligent electronic control active suspension is indeed a major feature, the system in the collection of speed, steering angle and speed, braking and other signals, but also with ESP, ABS, EBD and other safety assistance interlinkage, and finally by the ECU to control the execution of the suspension, so as to achieve rain and dew in comfort and handling.
But what makes the author wonder is why, as a performance benchmark model, there is also a horse brand MC6 tire based on silent comfort, the author is not saying that the MC6 tire is not good, but the MC6 will make the car have some constraints on performance, perhaps more cost considerations.
The leader of the new energy coupe such as 7
Head to the Schoon P7, which features a front double wishbone (all-aluminum alloy), rear multi-link suspension structure, with a CDC intelligent active continuous vibration damping system from ZF, a Brembo four-piston caliper kit, and Michelin PS4 tires. Pay attention to the front and rear suspension of the P7, which can basically be said to be modified from the rear-wheel drive model as a design model, and also confirm the statement that the chassis was jointly developed by the German engineering team.
Unlike BYD Han's front McPherson independent suspension, the advantage of the front double wishbones of the Xiaopeng P7 is that it is lightweight, but also provides sufficient fixed strength, and the upper and lower swingarms form a negative inclination angle when the wheels move upwards, offsetting the body roll and keeping the tires as perpendicular to the ground as possible. Although the handling is very good, but to find its disadvantages, that is, it occupies more space and the cost is higher.
The rear multi-link suspension (five linkages) of the Xiaopeng P7 can basically be said to be a variant of the double wishbones, the upper and lower connecting rods as the main control, the rest of the connecting rods as an auxiliary, this design is basically applied to performance-oriented models, as the first domestic coupe new energy Xiaopeng P7 of course also uses such a design.
Look closely, in fact, the design features of the Xiaopeng P7 are similar to the Audi models, after all, Audi and Porsche are one.
At the same time, the CDC intelligent active continuous vibration damping system provided by ZF, as well as michelin PS4 tires, are also the highlights of the Xiaopeng P7. In fact, the P7's CDC intelligent active continuous vibration damping system is basically similar to BYD Han, and it is also through the acceleration sensor that can detect the front axle, the rear axle height sensor, the vehicle driving state, etc., and automatically intelligently adjust the damping of the shock absorber.
Moreover, the Xiaopeng P7 is also equipped with 14 cameras, 5 high-precision millimeter wave radars and 12 sensors, coupled with NVIDIA's Xaiver supercomputing platform and Xiaopeng's self-developed 3.0 hardware system, making the whole system have more data support in computing, compared with BYD Han.
In terms of tires, it is also commendable, the above mention of BYD Han using the horse brand MC6 silent comfort orientation tires, while the Xiaopeng P7 uses the current top performance street tire Michelin PS4. This tire can be said to be the standard model of the current performance car, providing sufficient grip while achieving excellent performance in terms of drainage, durability and silence.
The only drawback is that the price of PS4 tires is not cheap, and it may hurt the wallet when replacing the tires. Of course, at the same price, you can also try performance street tires such as Pirelli P0 and Bridgestone Potenza series.
Reading the suspension is equivalent to reading the car company's car manufacturing mind
Comparing the two models, we can actually see the thinking of the two car companies to create a car. The difference between the two is not specifically good or bad, but more in the cost considerations, or the preset of the consumer group. BYD Han, the choice of the direction is more to cater to the general public, under the premise of low cost, trying to create a sporty model, but also under the control of cost, can not spend more effort in the suspension structure, tires, materials and other positions.
The Xiaopeng P7, as the second mass production model of Xiaopeng Automobile, is also the first new energy coupe model in China, and its birth was risky in the Yunyun new energy SUV model of that year, and it is also an ace card that Xiaopeng Automobile tries to highlight the siege. There is no doubt that it seems to be very successful now, and this is also due to the painstaking efforts injected by Xiaopeng Motors in the P7, whether it is suspension, materials, accessories, etc. can be ahead of the current counterparts.
But does this mean that the Xiaopeng P7 has not been considered in terms of cost? Of course not, Xiaopeng P7 despite the use of aluminum steel hybrid body, but the actual steel application ratio is higher than the aluminum alloy, of course, aluminum alloy is also applied to the blade, such as the above mentioned front double wishbones, it is pure aluminum alloy made.
At this point, Xiaopeng P7 can still become the leader in new energy cars to this day is not out of thin air, and BYD Han, as the ace product of the old car company, is about to launch a new model again, should we consider spending more time on "real kung fu", rather than withdrawing from the internal combustion field in the first place and setting up an environmental protection arch for itself?