The data from the retail sales volume of the China Passenger Car Association shows that the BYD Han has been the first in the sales list of medium and large vehicles in the past six months, while the Mercedes-Benz E-class is the second place from February to March, and the BMW 5 Series is from April to July. According to BYD's official announcement, the Han family will sell 25,849 vehicles in July 2022.
Although it has achieved the same level of sales champion, it seems that BYD thinks that the strength of Han has not been fully exerted, and recently launched the OTA upgrade for the second anniversary of the Han family.
In addition to HWA high-speed driving assistance and dTCS distributed traction control system, which improve the travel experience, it also brings NVH active sound, intelligent power on and off, full-scene intelligent voice, and DiTrainer coaching mode.
To put it simply, BYD Han wants to drain the current hardware performance through OTA upgrade, completely.
The model tested this time is the Han EV Qianshan Cui Limited Edition, which can experience all the functions of this upgrade. Let’s start with the conclusion. The assisted driving experience is not as good as that of models equipped with lidar and high-precision maps, but it can meet the needs of high-speed scenarios, and the intelligence has been improved to a certain extent. The addition of dTCS is very practical for users in northern regions.
People who drive often will like these two functions
The two most important functions of this OTA upgrade are HWA high-speed driving assistance and dTCS distributed traction control system . The former reduces the fatigue of high-speed driving, while the latter can improve the driving stability of the new energy vehicle on the ground and reduce slippage. Phenomenon.
HWA high-speed driving assistance functions, including ICC intelligent piloting and ILCA interactive lane change control, the latter is also known as the lane change function with lights.
ICC allows the vehicle to achieve adaptive cruise and lane centering within the range of 0-130km/h, and the measured lane locking is quite accurate, but it needs to be used on a clearly marked lane. This time, I have not been able to experience the corners with large curvature, but there are no problems in general high-speed corners .
The ILCA function of turning on the lights and changing lanes has long been tired of the new power car companies, while the traditional car companies are limited by hardware reasons, so far many models do not support it. When the vehicle speed reaches the range of 60-130km/h, after turning on the turn signal, the vehicle will detect the surrounding situation through the monocular camera and angular millimeter wave radar, and realize the automatic lane change function.
To test this feature, I tried to turn on the lights in some theoretically impossible lane changes. For example , when there is a vehicle on the solid line, in front of or behind the side and there is not enough safe distance for lane change, the system prohibits lane change, and the interface of the instrument panel has a corresponding prompt . On the other hand, the steering wheel of BYD Han realizes the function of hands-off detection by detecting the turning torque. This means that you occasionally need to "shake" the steering wheel and experience no better than capacitive.
It is said that in the future, BYD " will also integrate autonomous driving maps, continue to expand the use of roads, and further optimize functional performance ." The question is, what is BYD's autonomous driving map? I looked through the public reports.
On February 25, 2022, Jiemian News reported that “BYD has selected Baidu as its intelligent driving supplier. Baidu provides BYD with an ANP intelligent driving product and a human-machine co-driving map. According to reliable sources, the Baidu intelligent driving team has already advanced Entering the market to cooperate with BYD for development, and mass production of cooperative models will be realized soon.”
Combined with BYD's official statement of "expanding the use of roads", it can be seen that after cooperation with Baidu, BYD's assisted driving function will cover scenarios other than high-speed, such as urban roads.
According to Dong Chehui, on March 30, 2021, the world premiere of the dTCS distributed traction control system of the Han EV four-wheel drive version was developed by BYD and Bosch after four years of research and development, and recently it was officially pushed to users to upgrade through OTA.
With this system, the electric motor responds to dTCS torque requests approximately 10 times faster, keeping the tires grippy and reducing differential wear, while improving acceleration smoothness by reducing the distance the torque signal travels. In layman's terms, it is to make electric vehicles better utilize the advantages of high torque and reduce slippage, especially on roads with low adhesion (such as rain and snow areas), making the starting and turning more stable and comfortable.
Smart cockpit upgrade, one more virtual co-pilot
The upgrade of the intelligent cockpit is mainly reflected in four aspects: DiTrainer coach mode, full-scene intelligent voice, NVH active sound, and intelligent power-on and power-off.
The DiTrainer coach mode provides a number of functions including fog lights in rainy days, high-speed windows, troubleshooting, charging cover reminders, etc. It can also collect users' driving behavior and data for ratings, just like playing a game, step by step to fight monsters and upgrade. This function is very practical for novices, but for old drivers, it may feel like this function is tasteless.
The addition of full-scene intelligent voice, adding continuous dialogue, four-tone zone functions, support for intelligent voice assistants, media centers, and Bluetooth phones. This means that it can distinguish sounds from different areas such as the main driver, co-driver or rear row, which is a bit like an "ideal classmate".
Just like the name "Han", this model still pays more attention to Chinese elements, bringing a Chinese-style NVH active sound, drawing on the sound of the guzheng to design up and down electric sounds and pedestrian warning sounds, and the turn signals and radar sounds are optimized. But I personally prefer the default sound.
The smart power-on and power-off function, which has been highly requested by users, has finally arrived. After the key is unlocked, press the brake in the car to drive in gear. After parking in the P gear, lock the door with the electronic key and power off. However, when there are people or pets in the car, the car can only be locked and cannot be powered off, which is good for children's safety.
The BYD Han family has carried out a total of 17 OTA upgrades, and the two-year anniversary OTA is a relatively large upgrade, which has improved from vehicle performance to intelligent experience. However, in this upgrade, only the DiTrainer coach mode and intelligent power-on and power-off can be upgraded for the entire Han family. Other functions have some differences according to the hardware configuration of the model.
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