The circle of car friends saw a very interesting thing, car friends looked at BYD, but many friends around are Tesla, the same price point, where is the gap between BYD and Tesla? Insiders said that compared with the "motor, battery, electronic control" of the three electrical systems of the two gap is immediately high, in fact, in the winter to run a high-speed trip, the performance of the two immediately reflected vividly.
Nowadays, when it comes to pure electric vehicles, BYD and Tesla are two new energy vehicle companies that cannot be avoided, as far as the same price point of the model is concerned, BYD Han EV directly benchmarks Tesla Model3, for the performance of pure electric vehicles, "motor, battery, electronic control" These three electric systems are the core of technology, putting aside other factors, from 6 dimensions to compare the two models, to see how big the real gap between them is.
First, compared with battery technology, the gap is too large
Tesla's power battery is composed of more than 7,000 18650 lithium batteries in parallel, it does not produce power batteries itself, its batteries are purchased, mainly relying on Panasonic to provide, in addition to a small number of LG, Ningde era batteries.
In 2017, Tesla first launched a model with a range of more than 500 kilometers, and its power is this kind of no. 5 small battery that is paralleled by Tesla's own technology, and the reason for using this battery is that the battery consistency is good, and the charging and discharging performance is good.
On the other hand, BYD, it first relied on batteries to start, from electrical batteries, mobile phone batteries to the current power batteries, in 2003 into the field of new energy vehicles, when it was already the world's top 3 rechargeable battery manufacturers, in recent years with the help of new energy vehicles this wave of "outlet", the market value of more than 800 billion to become the leader of domestic car companies.
In terms of power battery technology, BYD has independently developed blade batteries, and the new generation of models will also use the e-platform 3.0 architecture, and the overall performance of the battery has been qualitatively improved.
Blade battery is based on lithium iron phosphate battery, its energy density exceeds the ternary lithium battery, the battery uses the latest battery high and low temperature control, heat insulation and other technologies, in the overcharge, puncture and other battery safety test scenarios blade battery stability is more prominent.
Specifically, let's take a look at the comparison of the mileage of BYD and Tesla's actual cars, from Beijing to Zhangjiakou, the whole high-speed, the distance is 200 kilometers, and the temperature is about minus 3-6 degrees Celsius.
BYD Han official endurance of 605 km, blade battery, battery capacity of 76.9kwh.
Tesla Model 3 official endurance of 468 km, lithium iron phosphate battery, battery capacity of 55kwh.
In the "photoelectric" car test, the same route, mileage, the whole process of opening two gear heating and air conditioning, the road conditions are general, the average speed of the whole journey is about 100 km / h, BYD Han in the service area back to Beijing to charge, the actual calculation of the full charge of 406 kilometers, that is to say, the actual endurance discount rate of about 6.7% off.
Tesla Model 3 to Zhangjiakou, the remaining endurance is only about 100 kilometers, can only be charged first, and finally calculated, the actual run of 282 kilometers, equivalent to the actual endurance discount rate of about 40%.
If not in the winter, the daily car environment, Tesla Model 3 actual endurance discount rate of about 85%, and equipped with blade battery BYD model endurance discount rate of about 94%, whether in winter or summer, such a gap is still very obvious, of course, the specific actual endurance and car environment, personal driving habits and other factors also have a certain relationship.
In general, blade batteries have improved qualitatively in terms of endurance and safety, so many car companies, including Tesla and Toyota, have extended an olive branch to BYD to find cooperation in power batteries.
Second, compare the dynamic performance
Tesla mainly uses AC asynchronous motor, mainly provided by Taiwan Tomita Motor, in terms of motor, this induction motor does not require permanent magnets, low energy consumption, higher power density, fast response in driving, strong power output, but asynchronous induction motors are mainly installed in high-end models, such as Model S, Model X, like the domestic Model3 low-performance models still use permanent magnet synchronous motors.
BYD motor is also independent research and development, mainly permanent magnet synchronous motor, the same power and torque, its weight and volume is smaller, more flexible, can leave more space for the battery, at the same time, because the permanent magnet motor in the continuous high temperature is easy to produce demagnetization, but BYD blade battery introduction of a new temperature control system, to a certain extent to dispel this concern.
Specifically, looking at the drive data of the two models, bydir Han high-performance version, the rear-drive motor power is 200kw, the peak torque is 350N·m, the Tesla Model3 rear-drive motor power is 194kw, and the peak torque is 340N·m. The gap between the two is very small and can be basically ignored.
In general, in terms of motor drive, the gap between BYD and Tesla is mainly in the difference in price, the technical level of the two car companies are not the same route, each has its own advantages, but in the field of high-performance electric sports cars, Tesla's induction motor technology is more prominent.
Third, compare the electronic control system
One of the core of electric vehicles is the battery, and the core technology of the battery lies in the electronic control system, Tesla's main technology in the battery is to independently develop a better BMS battery management system.
In the early days, Tesla in order to efficiently manage thousands of 18650 lithium batteries, independent data collection and control of each lithium battery, from multiple dimensions such as power recovery, driving force distribution to fine control of charging and discharging, it can be said that the same capacity battery, the actual mileage on Tesla models is often slightly better.
BYD's electronic control system is also independent research and development, in the latest e-platform 3.0 architecture, BYD further strengthened the integration between various components, such as eight-in-one power module, battery pack refrigerant direct cooling direct heat technology, on the one hand to reduce energy loss, on the other hand, the battery winter endurance performance increased by about 20%, which can be seen in the actual endurance in winter.
Fourth, compare the safety performance of the battery
At present, the mainstream power battery on the market is dominated by ternary lithium batteries and lithium iron phosphate batteries, the main advantage of ternary lithium batteries is that its energy density is larger, the same capacity lasts longer, in the low temperature environment, the performance is slightly stable, slightly less affected by low temperature, but its safety, cycle life is not as good as lithium iron phosphate batteries.
The main advantage of lithium iron phosphate battery is that the internal chemical stability of the battery is better, the battery life is slightly longer, and it is more stable in safety tests such as overcharge, puncture, impact, etc. Overall, the safety of lithium iron phosphate batteries is better than that of ternary lithium batteries, ANDD's blade batteries are the technical improvements of lithium iron phosphate batteries, and the natural safety far exceeds that of ternary lithium batteries.
Fifth, automatic assisted driving
In 2014, the country slowly has tesla figure, to everyone is more impressed is not only electricity, the other is that the automatic driving technology feels very high-end, full of sense of technology, indeed, Tesla's independent research and development of autopilot intelligent driving assistance system in the field of pure electric vehicles has been in the leading level.
From the perspective of actual driving, in multiple driving scenarios, Tesla automatic assistance is more accurate, the driving experience is better, for example, in some slightly larger corners, Tesla does not need to intervene in the steering wheel, can automatically complete the turn, and BYD Han in the corner, seeing that it is going to run out of the curb, at this time the car machine prompts human intervention to control the steering wheel.
For another example, once on a three-lane urban road, driving in the middle lane, want to change lanes to the left lane, and then the left lane suddenly has a vehicle that wants to add to the middle lane, at this time BYD Han is still trying to change lanes, almost collided, these vehicles on the various objects of accurate recognition and judgment of the difference, or automatic assisted driving logic, technical differences, especially in the rainy complex road conditions, try not to use automatic assisted driving.
Sixth, compare the brand effect, brand premium, cost performance
BYD and Tesla both began to lay out new energy vehicles in 2003, but the routes taken by the two companies are completely different, Tesla initially relied on resource integration, car manufacturing concepts, capital operation and other ways to quickly occupy the market in the field of new energy vehicles. Whether it is sales, market value or brand effect, Tesla has always been the "big brother" in the field of new energy vehicles in the world.
In the field of pure electric vehicles, Tesla is a big one, therefore, in the performance gap is not large in the two models, Tesla's price is also rising, far more than other pure electric models, in terms of model 3, the initial price of localization is as high as 350,000, and now the competition is fierce, on the one hand, the allocation is reduced, on the one hand, the price is constantly reduced to about 250,000, and the premium is almost 30%.
And BYD in many domestic mainstream car companies, can be described as a thriving, motor, electronic control, battery these three electric technologies are all independent research and development, which is also the world's first "three electric" technology to achieve independent research and development of the car company, technology integration and price advantages followed.
In terms of brand effect, it is still affected by the word "domestic", after all, many years ago, the fuel vehicle field due to the thin industrial foundation, poor foundation, late start, in the three major pieces of technology is far inferior to foreign companies, the quality of the car created is uneven, leaving some bad impressions on the owner.
Even "domestic" cars in the eyes of some people is synonymous with cheap, poor quality, such an impression has continued to the present, but what I want to say here is that in the field of new energy vehicles, global car companies are almost on the same running line, the three electric vehicles of pure electric vehicles and the three major pieces of fuel vehicles are completely different, and domestic new energy vehicle companies "corner overtaking" is completely ok.
In terms of price performance, BYD Han completely crushed the Tesla Model 3. The lowest price of Tesla Model 3 is about 270,000, which is almost the same as the highest version of BYD Han, but in comparison, the gap between the two is obvious.
1, power, Tesla for a single motor rear-drive model, while BYD Han is a dual motor, four-wheel drive model, this bydir Han completely crushed the Model 3.
2, space, Tesla positioning medium-sized car, body size: 4694mm * 1850mm * 1443mm, wheelbase of 2875mm, while BYD Han is positioned in medium and large cars, body size: 4980mm * 1910mm * 1495mm, wheelbase of 2920mm, the gap between the space of the two vehicles is obvious.
3. In terms of battery life, the official endurance of the two vehicles is about 550 kilometers, but the actual mileage of BYD Han blade batteries exceeds model 3.
4, battery warranty policy, BYD manufacturers for the first car owner to implement unlimited mileage / unlimited years of battery pack warranty, and Tesla warranty is still 8 years or 160,000 kilometers.
Battery warranty this point of the gap is very large, power battery life attenuation is inevitable, if more than 8 years later, battery decay is very serious, to the time when the battery must be replaced, I believe to see the price of replacing the battery, Tesla owners "intestines can be able to regret the youth", after all, we all know that the cost of pure electric vehicle batteries almost accounted for about 20%-30% of the whole vehicle, a 60kwh capacity of the battery, its price may be as high as sixty or seventy thousand.
5, charging problems, in fact, pure electric vehicles themselves battery life has reached more than five or six hundred kilometers, which is almost the same as the fuel car, but the owner is still not satisfied, the main reason is that the charging is too slow, charging difficult problem, BYD Han fast charge 80% of the power only takes about half an hour, and Tesla Model3 takes more than 1 hour, such a charging experience gap is obvious.
In general, Tesla's main advantages lie in the electronic control system, automatic assisted driving, brand effect, ETC's main advantages are cost performance, power performance, battery, endurance, functional configuration, space, safety and so on.
When looking at the car, many people may feel that bydy Han's advantages are more obvious, but in the end, they choose Tesla, in the final analysis, or can not avoid the "brand" and "face" factors, in short, BYD Han and Tesla Model3 have their own advantages and disadvantages, all depend on personal preferences, if you focus more on cost performance, power performance, appearance, interior, functional configuration, etc., then choose domestic cars, if you value "face", like automatic assisted driving, then choose Tesla.