Abstract:
Recently, understand the car emperor's evaluation
Three Zunjie V800s all had their brake pedal brackets broken during extreme braking. After the incident was exposed, it attracted widespread attention. In the evaluation video,
In the 100km/h-0 continuous emergency braking test of three new Zunjie V800s, the brake pedal brackets all physically broke during the second to fourth heavy braking. After the breakage, the vehicle lost foot brake support and could only rely on P gear for emergency braking. The braking distance increased from the normal 38 meters to about 140 meters. All three vehicles of this brand had the same problem, and the outside world suspected that the vehicles had design defects.
Article | "Next Generation Vehicle Research Institute" column
Yan Yan
After the incident was exposed, the opinions of netizens were obviously divided. One party believes that "this is a high-intensity continuous violent test, with repeated extreme heavy braking, which is an extreme situation far beyond the daily use of cars." The other party expressed serious concerns, thinking, "Is this a million-dollar luxury car or a fatal car?" "It is abnormal for a person to step on the brake pedal. This is abnormal and needs an explanation."
So far, neither the Zunjie brand nor the manufacturer JAC Motors has issued a formal statement or recall plan regarding the brake pedal breakage incident. However, the capital market has reacted. Affected by the fermentation of public opinion about this incident, JAC Motors suffered a heavy setback in the capital market. Today, the stock price hit the limit, falling by more than 10%.
In response to this situation, the investor relations department of JAC Motors told the "Next Generation Vehicle Research Institute" column, "This matter has been reported to the relevant departments." Talking about issues such as the stock price hitting the limit today, the staff said, "The company's production and operation are normal, and there are quality control processes before the vehicles leave the factory. You can pay attention to the follow-up news."
In addition, a scheduled owner of the Zunjie V800 contacted sales to cancel the reservation immediately after watching the test video. His reason was very straightforward: "With key components like the brakes in such a state, I can't believe other problems." He even said, "I don't have to pay the deposit, but I definitely don't want the car."
Yu Chengdong once praised Zunjie for being "leading across the ages"
Recently, the car expert released a review video and said: "Three Zunjie V800s were used for emergency braking at 100km/h-0. The brake pedal brackets all broke at the moment when the foot was pressed to the bottom. The heavy brake did not last 4 feet. Is it a coincidence or is there a real safety hazard?"
In the evaluation video, three brand-new Zunjie V800s entered the test site. The first car broke during the third full-force braking, the second car broke during the fourth time, and the third car broke after only the second test. It is worth noting that the fracture locations of the three vehicles are the same and the fracture shapes are highly consistent.
In the video, the test driver said, "I was just two feet old. I was scared to death. There was a pop, a sound of plastic cracking, and then the whole car stopped braking at all." "I'm just a person of about 1.7 meters and 140 pounds, an average person. As an ordinary adult male, I have a normal braking force. I thought at least the second kick was fine. I was mentally prepared and knew how to shift into P gear. What if the average person didn't know that the braking position was only on the floor? How could this person not panic?"
It is reported that the test data disclosed in the video showed that the pedal force at the moment when the third car broke was 1612 N. According to the relevant mandatory standards for motor vehicle brake pedals, the brake pedal should be able to withstand a force of 2,000 N and remain inactive for 5 seconds.
Regarding this incident, some netizens said bluntly, "I think this really doesn't need to be washed. No matter how hard it is, it was stepped on by people. It costs millions. This kind of situation should not happen, and it is not a small car worth tens of thousands of dollars." "Don't use testers. In terms of foot strength, the Huawei Zunjie V800 is also a car, and the life of the owner of the Zunjie V800 is also life. "In an emergency, people's stress response is to step on as hard as they can. At this time, hope turns to despair."...
It is understood that Zunjie is an ultra-luxury car brand jointly created by Huawei and Jianghuai Automobile. Huawei provides the brand with Qiankun intelligent driving, Hongmeng intelligent cockpit, three-electric system and vehicle digital architecture. JAC Motors is responsible for vehicle research and development, chassis tuning and production and manufacturing. The product line covers flagship sedans and large luxury MPVs. Zunjie V800 is a large-scale extended-range MPV under Zunjie. It will be launched in August 2026. It will focus on the high-end business market with a price range of 766,000 to 1.016 million yuan.
It is worth noting that Yu Chengdong, Huawei’s Managing Director and Chairman of Terminal BG, has repeatedly supported the Zunjie brand.
Currently, Yu Chengdong’s WeChat avatar is a photo with Zunjie V800. On February 14 this year, he drove his Zunjie S800 and took his family back to his hometown of Huoqiu County, Anhui Province to celebrate the New Year.
At the Hongmeng Zhixing Zunjie Brand Ceremony in June this year, Zunjie V800 and V680 started pre-sale simultaneously. Some media reported that Yu Chengdong said on the spot: "This is definitely the top MPV in the world." On August 5, at the Zunjie V800 launch conference, Yu Chengdong also shouted "Leading across the ages, leading in all aspects."
During the National Day holiday, another car delivery video circulated on social platforms: Yu Chengdong, Huawei's managing director and chairman of Terminal BG, stood beside the car and handed the keys of a Zunjie V800 to Huo Zhenhuan, CEO of Fok Yingdong Group. The scene of the two giving a thumbs up side by side was frozen.
Founder Securities research report shows that pre-sale orders for Zunjie V800 and V680 exceeded 10,000 units in 23 days, with V800 accounting for as much as 80%. Authorized stores have pre-sold approximately 36 units on average, 80% of which are corporate users, aged 35 to 60, mainly business owners and executives.
Expert:
Serious security flaw
After the incident was exposed, terms such as "Zunjie V800 brake pedal bracket is broken", "Zunjie V800", "Zunjie knows the car emperor", "JAC was smashed to the stop" and "Knows the car emperor the foot power" quickly became hot searches.
The impact of the incident has begun to spread from the public opinion field to the order side. A blogger revealed that a car owner who had reserved a Zunjie V800 contacted sales immediately to cancel the reservation after watching the test video. His reason was very straightforward: "With key components like the brakes in such a state, I can't believe other problems." He even said, "I don't have to pay the deposit, but I definitely don't want the car."
To what extent can this "continuous braking until failure" test paradigm effectively expose design flaws, and what limitations may it have?
Zhang Xiang, a visiting professor at the Yellow River Institute of Science and Technology, analyzed in the "Next Generation Vehicle Research Institute" column, "The Zunjie V800 is a super luxury car with a large body size and a high vehicle weight. The direct consequence of the vehicle weight is that the braking inertia is large, and the braking force required for braking is also greater, which affects the brake pedal bracket. The strength and structural design require much higher requirements than ordinary models. For this reason, such problems are more likely to be exposed in heavy-duty luxury cars such as the V800, while in economical cars or light-duty cars, the same design flaws may not appear at all due to the smaller braking force requirements. ”
He further mentioned that in addition to the factor of heavy equipment weight, it is also necessary to pay attention to the particularity of the test scene itself. "Judging from the evaluation video, this is a professional braking distance test, which requires the driver to depress the brake pedal with maximum force and speed. The test was performed by a professional driver, who stepped on the brake pedal very hard and violently. This is also one of the reasons why the pedal bracket was damaged. If ordinary drivers step on the brakes every day, such breakage should not occur. This video is an extreme situation."
Three vehicles failed in the same mode. What does this high degree of consistency in failure mean in engineering? Is it enough to rule out "incidental failures" and point to systemic problems?
Zhang Xiang said, "The core reason for this matter is that Zunjie probably did not redesign the brake pedal bracket according to the actual load of this car, but directly 'transplanted' the existing solutions of other models. The reason behind this may be that due to the extremely short development cycle, tight launch node and other reasons, the relevant verification links were compressed. As a result, a defect that should have been discovered at the design stage was brought all the way to the mass-produced car."
He bluntly said that the failure of three vehicles at the same time ruled out the possibility of accidental failure and was a serious safety flaw. "Brake is a first-level safety component. If the car fails to brake, it can directly lead to traffic accidents such as rear-end collisions and collisions, and may even cause casualties to the driver and passengers. Such an expensive car, which even sells for more than 1 million, has a great negative impact on the Zunjie and JAC Automobile brands. In particular, it will cause consumers to doubt JAC Automobile's R&D capabilities and whether the brand can launch such a high-end model at the level, which may be a serious blow to JAC Automobile."
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