Tesla released the data, why did it lead to more questions?

特斯拉不需要公关。

Tesla doesn't need pr.

周三，高盛前高管加里布莱克（Gary black）在推特上发文，问特斯拉首席执行官埃隆马斯克（Elon Musk），他以"专注于产品"为由拒绝了。马斯克的答案在意料之中。毕竟，特斯拉几乎是中国的"交通之王"。

On Wednesday, Gary black, a former Goldman executive, tweeted, "are you considering hiring a public relations person?" Asked Tesla CEO Elon Musk, who declined on the grounds of "focusing on products.". Musk's answer is expected. After all, Tesla is almost the "king of traffic" in China.

一方面，特斯拉曾一度成为市场关注的焦点，公布了今年一季度的盈利和净利润；另一方面，随着"刹车失灵"事件的持续发酵，特斯拉也成为包括公众、专家和业界在内的讨论对象。

On the one hand, Tesla once became the focus of the market in the first quarter of this year's earnings and net profit; On the other hand, as the "brake failure" incident continues to ferment, Tesla has also become the object of discussion, including the public, experts and the industry.

特斯拉站在众说纷纭的聚光灯下。

Tesla is standing in the spotlight of mixed praise.

同时，也有一些特斯拉车主站在这盏"灯"下，其中安阳特斯拉汽车代言人女士就是代表。看着她的个人微博，可以看到署名栏里写着一句话——模式3失控，让我成长为自媒体。

At the same time, there are also some Tesla rights owners standing under this "light", among which Ms. Anyang Tesla car advocate is the representative. Looking at her personal microblog, you can see a sentence written in the signature column - model 3 out of control, let me grow into a we media.

安阳车主个人微博签名、吐源晚会微博

Anyang car owner personal microblog signature, tuyuan party microblog

就在两个月前的2月21日下午5点半左右，张女士和她的父母以及1岁的侄女驾驶着一辆特斯拉Model 3从小南海水库返回安阳市。车上，张女士坐在副驾驶座上，父亲开车，母亲和侄女坐在后排。

Just two months ago, around 5:30 p.m. on February 21, Ms. Zhang, her parents and 1-year-old niece drove a Tesla Model 3 back to Anyang City from Xiaonanhai reservoir. In the car, Ms. Zhang sits in the co driver's seat, her father drives the car, and her mother and niece sit in the back row.

半个多小时后，该车行驶至安阳341国道南段时发生交通事故。据张女士的弟弟回忆，事故发生后，他赶到了现场。交警经过调查发现，该车先是在内侧车道上蹭了一辆越野车，然后撞上了一辆日产轿车，最后在撞到路中间的防护带后停下。

More than half an hour later, the vehicle went to the south section of Anyang 341 national highway and encountered a traffic accident. According to Ms. Zhang's younger brother's recollection of the trip, he arrived at the scene after the accident. After the traffic police's investigation, they found that the vehicle first rubbed an SUV in the inner lane, then hit a Nissan car, and finally stopped after hitting the protective belt in the middle of the road.

之后，特斯拉和张女士对事故情况没有异议，但在事故原因上存在分歧。

After that, Tesla and Ms. Zhang had no objection to the situation of the accident, but they had differences on the cause of the accident.

事故发生后，特斯拉发布了一系列的回复和数据，认为事故发生前车辆处于118.5km/h的超速状态，碰撞事故并非由车辆制动系统问题引起。

After the accident, Tesla issued a series of responses and data, and believed that the vehicle was in the overspeed state of 118.5km/h before the accident, and the collision accident was not caused by the problem of vehicle braking system.

不过，张女士说，事故发生前，车辆的刹车失灵了。"刹车踩不下来，刹车已经硬了，刹车失灵了"，她还强调，事故发生前，车速维持在60-70公里/小时，没有超速。

However, Ms. Zhang said that before the accident, the vehicle's brake had failed. "The brake can't be stepped down, it has hardened, and the brake has failed." she also stressed that before the accident, the vehicle's speed was maintained at 60-70km / h, and it didn't exceed the speed limit.

由于这样的分歧，他们在双方多次沟通后并没有得到很好的解决，从而导致了"上海车展车顶保护"事件的发生，并最终演变成全国性的维权案件。

As a result of such differences, they did not get a good solution after many times of communication between the two sides, which led to the occurrence of the "roof protection of Shanghai auto show" incident, and eventually turned into a nationwide right protection case.

途远特斯拉官方微信

Tuyuan Tesla official micro

值得注意的是，上述差异的前提是特斯拉给出的数据是准确的。

It is worth noting that the above differences are based on the premise that the data given by Tesla is accurate.

就在数据公布后，特斯拉遭到了很多业内人士和汽车工程专业人士的质疑，称关键数据缺失，提供的车速与车主差距过大，以至于网上很多人认为"特斯拉可能撒谎了"。

Just after the data was released, Tesla was questioned by many people in the industry and automotive engineering professionals, saying that the key data was missing, and the gap between the speed provided and the vehicle owner was too large, so that many people on the Internet thought that "Tesla may have lied".

那么，特斯拉真的撒谎了吗？

So, did Tesla really lie?

为解决这一问题，《连线旅行》尝试从车主、汽车工程专业人士、业内人士、律师等角度进行多方核查，从公共信息、汽车技术工程等方面进行调查，并从特斯拉与车主的差异入手，尽量接近真相。

To solve this problem, wired travel tries to conduct multi-party verification from the perspectives of car owners, automotive engineering professionals, industry insiders and lawyers, investigate from the aspects of public information and automotive technology engineering, and start with the differences between Tesla and car owners to try to approach the truth to the greatest extent.

1汽车超速了吗？

1. Is the car speeding?

试想，有这样一个路段，大货车和慢农用车经常来来往往，还有一个狭窄的路段。面对如此复杂的路况，要以多快的速度才能把车开走？

Imagine that there is such a road section where large trucks and slow agricultural vehicles often come and go, and there is also a narrow road section. In the face of such complicated road conditions, how fast will it take to drive the vehicle forward?

事故发生后，张女士一行回答了这个问题——时速60-70公里。当时，这个速度信息并没有被这么多人注意到。不过，由于特斯拉披露了事故车辆的数据，并称事故发生前车速达到118.5公里/小时，属于超速行驶，因此车速信息成为关键数据之一。

This question was answered by Ms. Zhang and her party after the accident - 60-70km / h. At that time, this speed information was not noticed by so many people. However, as Tesla disclosed the data of the vehicle in the accident and said that the speed reached 118.5km/h before the accident, which was speeding, the speed information became one of the key data.

双方给出的速度差距太大，到目前为止还没有更多的证据支持各自的观点。

The speed gap given by both sides is too large, and so far no more evidence has been produced to support their respective views.

对此，我们已经展开了一系列的调查核实。

In this regard, we have started a series of investigations and verification.

今年2月21日，张女士父亲的特斯拉3型车行驶在安阳341国道上。对于当地人来说，由于路况复杂，事故风险高，这条国道还有另外一个名字——"致命路"。

On February 21 this year, Ms. Zhang's father's Tesla Model 3 was driving on Anyang 341 national highway. For local people, because of the complex road conditions and the high risk of accidents, this national highway also has another name - "lethal road".

就在张女士一家发生交通事故后，很多媒体都到现场亲自体验路况。通过腾讯棱镜报道的视频，我们可以看到事故路段路况的复杂性。

Just after the traffic accident of Ms. Zhang's family, many media have gone to the field and experienced the road conditions in person. Through the video reported by Tencent prism, we can see the complexity of the road conditions of the accident section.

要到达事故交叉口，必须先经过一段"三车道改一车道"的车道变窄路段。由于道路右侧有高压电线杆，所有车辆必须改向最左侧车道行驶；超车后将面对一段倾斜10度的上坡路，下坡后将遇到对面车道的倒车情况，需要减速。

To get to the intersection of the accident, we must first pass a section of "three lanes to one lane" Lane narrowing section. Because there are high-voltage poles on the right side of the road, all vehicles must change lanes to the leftmost lane; After passing, it will face a section of uphill with an inclination of 10 degrees, and after the downhill, it will encounter the reverse situation of the opposite lane, so it is necessary to slow down.

除路况外，从视频中还可以看出，这段路段车流较大，不时会有半挂货车和慢行农用车上路。国道上的大局更为复杂。

In addition to the road conditions, it can also be seen from the video that there is a large traffic flow in this section of the road, and from time to time there will be semi-trailer trucks and slow agricultural vehicles on the road. The overall situation on the national road is more complex.

针对这种情况，行旅方面向341国道边的商铺老板核实。据某国道边一家快餐店老板介绍，这条国道的车流很大，尤其是载货的大货车。

For this situation, the line travel to 341 National Road side business shop owners to verify. According to the owner of a fast food restaurant on the side of a national road, the traffic flow on this national road is very large, especially the large trucks carrying goods.

张女士的弟弟还向《连线旅行》透露了一个细节，证实了这一情况。据他介绍，事故发生后第一时间，他赶到现场，看到现场一片狼藉。他还看到许多大卡车仍停在特斯拉的车道上。

Ms. Zhang's younger brother also revealed a detail confirming the situation to wired travel. According to him, the first time after the accident, he arrived at the scene and saw the scene in a mess. He also saw that many large trucks were still parked in the driveway of Tesla.

安阳特斯拉撞车现场受访者提供的照片

Photo provided by interviewees at the scene of Tesla collision in Anyang

正因为如此，特斯拉公布超速数据后，张家仁一致不接受这一数据。

Because of this, after Tesla released the data of speeding, zhangjiaren unanimously did not accept the data.

"当时，我妈妈、姐姐和一岁的女儿都在车里。张女士的弟弟这样说："我爸爸怎么能开这么快？"。据他介绍，他父亲1986年拿到驾照，一直经营交通。他对车速很敏感，不能拿家里的生活开玩笑。

"At that time, my mother, my sister and my one year old daughter were in the car. How could my father drive so fast?" Ms. Zhang's younger brother said so. According to him, his father got his driver's license in 1986 and has been running transportation. He is very sensitive to the speed of the car and can't make fun of his family's life.

再加上如此复杂的路况和庞大的车流，车辆很难达到100公里/小时以上的速度。为了确认车速事实，张女士的弟弟在同一时间多次调查路况，但仍遇到多辆大车和大车流。

Coupled with such complex road conditions and large traffic flow, it is difficult for vehicles to reach a speed of more than 100km / h. In order to confirm the fact of speed, Ms. Zhang's younger brother has repeatedly investigated the road conditions during the same period of time, but still encountered many large vehicles and large traffic flow.

这在腾讯棱镜报道的视频中也可以看到。整个事故路段跑完后，根据司机在视频中的介绍，行驶车辆的车速一直保持在50-60公里左右，在此过程中车速很难提高到80公里以上。

This can also be seen in the video reported by Tencent prism. After running the whole accident section, according to the driver's introduction in the video, the speed of the driving vehicle has been maintained at about 50-60km / h, and it is difficult to increase the speed by more than 80km / h in the process.

不过，也有可能。

However, there is also a possibility.

从整个路段来看，复杂的路况大多集中在前半段，而后半段可以稍微提速。当时，视频中的车辆，当被要求通过连接腾讯棱镜时，是荣威rx5，而不是特斯拉。

From the perspective of the whole section, the complicated road conditions are mostly concentrated in the first half of the road, while the latter half of the road can be slightly accelerated. At that time, the vehicle in the video, when asked to Tencent prism by connecting, was a Roewe rx5, not a Tesla.

众所周知，特斯拉Model 3的百公里加速时间肯定比荣威rx5快得多。根据特斯拉官方数据，这一时间只有3.3秒，因此在下半程中，车速也可能达到100公里/小时。

As we all know, the 100 km acceleration time of Tesla Model 3 is certainly much faster than that of Roewe rx5. According to the official data of Tesla, this time is only 3.3 seconds, so in the second half of the journey, the speed may also reach 100 km / h.

此外，一些媒体实地走访后发现，路上的交通监控探头没有打开，因此无法看到张女士家人驾驶的特斯拉车在撞车前是否达到了限速。

In addition, after some media field visits, it was found that the traffic monitoring probes on the road were not turned on, so it was impossible to see whether the Tesla driven by Ms. Zhang's family had reached the speed limit before the collision.

看来一切都进退两难，但如果你回顾一下事故的来龙去脉，也许会有一些收获。

It seems that everything is in a dilemma, but if you look back at the origin of the accident, there may be some gains.

通过查阅资料，我们可以了解到，一般车辆碰撞事故发生后，交警在调查现场后会出具事故确认书，上面注明事故发生的时间、地点、事故原因等与事故有关的信息。

Through consulting information, we can learn that after a general vehicle collision accident, the traffic police will issue an accident confirmation letter after investigating the scene, which indicates the time and place of the accident, the cause of the accident and other information related to the accident.

经过多方寻找，我们收到了这封关于张女士家庭事故的信，信中称张女士父亲驾驶的车辆违反了《道路交通安全法》第二十二条第一款和第四十三款的规定。

After seeking many ways, we got this letter about the accident of Ms. Zhang's family, which stated that the vehicle driven by Ms. Zhang's father violated the first paragraph of Article 22 and the forty third paragraph of the road traffic safety law.

安阳特斯拉相撞事故证明，受访者提供照片

Certificate of Anyang Tesla collision accident, photo provided by interviewees

通过阅读《条例》，我们可以看到这两个条例的详细说明

Through reading the regulation, we can see the detailed description of the two regulations

第二十二条第一款机动车驾驶人应当遵守道路交通安全法律、法规的规定，按照操作规程安全文明驾驶。

Article 22 paragraph 1 a motor vehicle driver shall abide by the provisions of the laws and regulations on road traffic safety and drive safely and civilly in accordance with the operation specifications.

第四十三条同一车道行驶的机动车，后车应当与前车保持足够的安全距离，采取紧急制动措施。

Article 43 for motor vehicles driving in the same lane, the rear vehicle shall keep a safe distance enough to take emergency braking measures from the front vehicle.

事故确认书中未提及超速相关法律法规的规定"交通部门出具的事故认定书是具有证据力的文件。如果文件上没有提到超速，就可以证明车主没有超速。"浙江泽鼎律师事务所夏金燕律师告诉在线旅游。

There is no mention of violation of speeding related laws and regulations in the accident confirmation" The certificate of accident identification issued by the transportation department is a document with evidential force. If the document does not mention speeding, it can prove that the owner is not speeding. " Zhejiang zeding Law Firm lawyer Xia Jinyan told the online travel.

根据我国的限行实践，国道的限速一般为60-80公里/小时。据张女士的弟弟介绍，事故路段最高限速为80公里/小时，这意味着张女士一家驾驶的特斯拉Model 3没有超过撞车前的限速，更不用说特斯拉数据中的118公里/小时了。

According to China's traffic restriction practice, the speed limit of national roads is generally 60-80km / h. according to Ms. Zhang's younger brother, the maximum speed limit of the accident section is 80km / h, which means that the Tesla Model 3 driven by Ms. Zhang's family did not exceed the speed limit before the collision, let alone the 118km / h in Tesla data.

夏金燕这样说："面对差距过大的两个数据，相比特斯拉给出的车辆信息数据，交警部门出具的事故认定证明更具说服力和可信度。"。

"In the face of two data with too big gap, compared with the vehicle information data given by Tesla, the certificate of accident identification issued by the traffic police department is more convincing and more credible." Xia Jinyan said so.

现在，经过现场路况的相互确认、当事人的口头陈述以及交警部门出具的事故鉴定证明，可以证明特斯拉出具的数据中的车速存在问题，而特斯拉提供的制动系统数据也存在诸多疑问。

Now, with the mutual confirmation of the on-the-spot road conditions, the oral statements of the parties and the accident identification certificate issued by the traffic police department, it can be proved that the speed in the data issued by Tesla is problematic, and there are also many doubts about the braking system data provided by Tesla.

2刹车真的失灵了吗？

2. Did the brakes really fail?

"刹车坏了。刹车坏了！"

"The brake doesn't work. The brake doesn't work!"

就在车祸发生前几秒钟，张女士的父亲发现停车困难，便喊出了这句话。相撞后，张女士通过个人微博描述了那几秒钟发生的事情：

Just seconds before the crash, Ms. Zhang's father found it difficult to stop the car and called out this sentence. After the collision, Ms. Zhang described what happened in those seconds through her personal microblog:

距离前方红绿灯路口约200米处，张女士的父亲松开了开关，车辆开始减速并向前滑行。接近前方红灯车辆时，应先轻踩刹车，不应有明显减速，然后再踩刹车。发现刹车踏板硬，踩不稳，刹车失灵。

About 200 meters away from the traffic light intersection in front, Ms. Zhang's father released the switch, and the vehicle began to slow down and slide forward. When approaching the vehicle with red light in front of it, first step on the brake lightly without obvious deceleration, and then step on the brake again. It is found that the brake pedal is stiff, hard to step on, and the brake fails.

当时，特斯拉Model 3仍以每小时50公里左右的速度行驶。在连续避开两辆车后，撞上了一辆哈弗越野车。然后它转向左边，撞上了一辆日产汽车。最后，它撞上了路上的混凝土护栏，停了下来。

At that time, the Tesla Model 3 was still driving at about 50km / h. After avoiding two cars in a row, it hit a Haval SUV. Then it swerved to the left and hit a Nissan car. Finally, it hit the concrete barrier in the road and stopped.

一个多月后，在舆论的压力下，特斯拉还发布了包括当时车速、制动总泵压力、ABS信号、AEB信号和前向碰撞警告信号在内的数据表，并表示："当车辆以较高的速度行驶时，驾驶员开始用较小的力踩下制动踏板，然后自动紧急制动功能启动并发挥作用，提高制动力，减少碰撞冲击。制动系统工作正常，车速降低。"

More than a month later, under the pressure of public opinion, Tesla also released a data table including the vehicle speed at that time, brake master cylinder pressure, ABS signal, AEB signal and forward collision warning signal, and said: "when the vehicle is driving at a higher speed, the driver starts to press the brake pedal with less force, and then the automatic emergency braking function starts and plays a role, The braking force is improved and the impact of collision is reduced. The braking system works normally and the vehicle speed is reduced. "

根据特斯拉公布的安阳特斯拉撞车事故数据，消息来源是特斯拉官方微博

According to the data released by Tesla on the Anyang Tesla collision accident, the source is Tesla official micro blog

换言之，特斯拉意味着车辆的制动系统正常，没有制动故障。

In other words, Tesla means that the vehicle's braking system is normal and there is no brake failure.

一方面车主认为车祸前刹车失灵，另一方面特斯拉认为车辆刹车系统正常。一时间，在双方的不同意见下，对这个问题的回答陷入了迷雾。

On the one hand, the car owner thought that the brake failed before the crash, on the other hand, Tesla thought that the vehicle brake system was normal. For a time, in the different opinions of both sides, the answer to the question fell into a fog.

但幸运的是，此后，许多汽车工程工程师和专家开始自发地对特斯拉发布的数据进行专业解读。

But fortunately, after that, many automotive engineering engineers and experts began to spontaneously interpret the data issued by Tesla professionally.

其中，博世工程技术中国公司电子稳定系统校准工程师罗新宇根据关键节点数据，通过差分和积分运算填写特斯拉数据的备件，并在视频中对数据进行详细解读。

Among them, Luo Xinyu, calibration engineer of electronic stability system in Bosch Engineering Technology China, according to the data of key nodes, fills in the spare part of Tesla data through difference and integral operation, and interprets the data in detail in the video.

他认为，事故发生时特斯拉的速度一直在下降，经计算最大减速度可达0.7G；同时，根据数据显示，制动总泵的压力一直在上升，直到几乎满足140.7bar的制动需求压力。

In his opinion, the speed of the Tesla was always decreasing at the time of the incident, and the maximum deceleration can reach 0.7G by calculation; At the same time, according to the data, the pressure of the brake master cylinder has been rising until it almost meets the 140.7bar pressure of the braking demand.

此外，数据中还触发了ABS（防抱死制动系统）和AEB（自动制动系统）。如果触发前者，表示车轮和地面已达到制动极限，ABS功能正常；后者是更高级的功能。如果触发此功能，可以证明ibooster和ESP系统工作正常。

In addition, ABS (anti lock braking system) and AEB (automatic braking system) are triggered in the data. If the former is triggered, it means that the wheels and the ground have reached the limit of braking and the ABS function is normal; The latter is a more advanced function. If this function is triggered, it can prove that ibooster and ESP system are working normally.

特斯拉数据中的车速和制动缸压力图，罗新宇个人微博截图

Diagram of speed and brake cylinder pressure in Tesla data, screenshot from Luo Xinyu's personal microblog

对于ibooster和ESP系统，前者是一种电动助力器，主要为特斯拉的制动提供动力，并在紧急制动时放大驾驶员的制动力，达到更好的制动和停车效果；ESP是车内的电子稳定程序系统，在制动过程中作为ibooster的后备系统。假设ibooster出现故障，esp可以使用泵来提升ibooster。

For ibooster and ESP system, the former is a kind of electric booster, which mainly provides power for Tesla's braking, and amplifies the driver's braking force in emergency braking to achieve better braking and parking; ESP is the electronic stability program system in the car, which is back-up to ibooster in the braking process. Assuming that ibooster fails, esp can use the pump to boost the ibooster.

除了侧面验证AEB系统是否正常工作外，一些汽车软件工程师认为，制动总泵的压力也可以证明ibooster或ESP工作正常。

In addition to the side verification of the normal operation of the AEB system, some Automotive Software engineers believe that the pressure of the brake master cylinder can also prove that ibooster or ESP is working normally.

"车辆开始制动后，从数据中可以看出，制动缸的压力也在上升，最终达到140.7bar。在这样高的刹车压力下，人们很难踩到刹车，所以刹车辅助系统工作正常。"汽车软件工程师何刘在接机时说。

"After the vehicle starts braking, it can be seen from the data that the pressure of the brake cylinder is also rising, so that it reaches 140.7bar at last. It is very difficult for people to step on such a high brake pressure, so the brake assist is working normally." He Liu, an Automotive Software Engineer, said on the connection trip.

因此，从综合数据来看，ABS、ibooster或ESP的正常运行可以证明当时特斯拉的制动系统工作正常。罗新宇和何柳都肯定了这一结论。

Therefore, from the comprehensive data, the normal operation of ABS, ibooster or ESP can prove that the brake system of the Tesla at that time was working normally. Luo Xinyu and he Liu both affirmed the conclusion.

但这并不意味着特斯拉是无辜的。

But that doesn't mean Tesla is innocent.

在罗新宇看来，这个数据并不能完全解释一切。相反，也有一些疑问。首先，在减速度方面，0.7G的计算值会触发ABS，但是这个值太低了。毕竟，普通车辆在干沥青路面上的减速度可以达到1g-1.2g。

In Luo Xinyu's opinion, this data can not fully explain everything. On the contrary, there are some doubts. First of all, in terms of deceleration, the calculated value of 0.7G triggers ABS, but this value is too low. After all, the deceleration of normal vehicles on dry asphalt pavement can reach 1g-1.2g.

造成这种异常现象的原因之一是路面是否平整，有无沙粒或积水，都会影响车轮与地面的摩擦系数，从而影响车辆的制动极限。对于这一点，行旅还向张女士的哥哥求证，对方称："当时路上没有水和碎石，比较干净。"

One of the reasons for this abnormal phenomenon is whether the road surface is smooth, whether there is sand or water, which will affect the friction coefficient between the wheel and the ground, thus affecting the braking limit of the vehicle. For this point, the line travel also to Ms. Zhang's brother for verification, the other side said: "at that time, there was no water or gravel on the road, relatively clean."

由于特斯拉没有给出相关轮胎的传感器参数，导致这种异常现象的原因不得而知。此外，还有刹车踏板变硬的问题，这也是张家一再强调的问题

Because Tesla has not given the sensor parameters of the relevant tires, the reason for this abnormal phenomenon is unknown. In addition, there is also the problem of the brake pedal becoming hard, which is also a problem repeatedly emphasized by the Zhang family

但特斯拉的数据也无法解释问题是如何发生的。

But Tesla's data also doesn't explain how the problem happened.

"硬刹车，顾名思义，就是刹车踏板踩不下来。主要原因是动力辅助失灵。然而，从给定的数据来看，可以证明助力系统工作正常，这就产生了矛盾。除非特斯拉能够补充制动踏板位置信息或ibooster数据，否则它或许能够解决这个问题。"何刘这样对连接跳闸说。

"The hard brake, as the name suggests, means that the brake pedal can't be pressed down. The main reason is that the power assist fails. However, from the given data, it can be proved that the power assist is working normally, which leads to a contradiction. Unless Tesla can supplement the brake pedal position information or ibooster data, it may be able to solve this problem." He Liu said this to the connection trip.

制动系统示意图

Schematic diagram of brake system

就在这时，汽车评论家王寅的团队发了一段视频来回答这个问题。视频中，他的团队在测试特斯拉3型车的过程中出现了刹车踏板异常硬化的现象，最后表示可能是由于动能回收功能的限制。

Just at this time, the car critic Wang Yin's team sent a video to answer this question. In the video, his team appeared abnormal hardening of the brake pedal in the process of testing Tesla Model 3, and finally said that it might be due to the limitation of kinetic energy recovery function.

对于这一点，张女士的哥哥说了一个细节，这个细节可能可以得到证实，"据我姐姐说，事故发生时，松开开关后，我发现动能的恢复似乎受到了限制，而且车速也没有下降，于是我踩了刹车，然后我发现刹车踏板变硬了。"

For this point, Ms. Zhang's brother said a detail, which may be confirmed" According to my sister, when the accident happened, after releasing the switch, I found that the recovery of kinetic energy seemed to be limited, and the speed did not drop down, so I stepped on the brake, and then I found that the brake pedal became hard. "

据何刘介绍，虽然动力回收系统和刹车系统是两个系统，但这可能是安阳出现"刹车失灵"现象的原因之一。然而，这一发现仍然无助于特斯拉在数据中证明自己的清白。

According to he Liu, although the power recovery system and the brake system are two systems, this may be one of the reasons for Anyang's "brake failure" phenomenon. However, this discovery still does not help Tesla to prove itself innocent in the data.

毕竟，这种推理是以数据可靠为前提的。

After all, this reasoning is based on the premise that the data is reliable.

三。特斯拉的数据可信吗？

3. Is Tesla's data credible?

综上所述，事故发生前，特斯拉给出的速度与车主给出的速度相差很大。最后，通过多方核实，可以证明张女士的父亲没有超速，这也意味着特斯拉公开数据中的速度部分存在问题。

According to the above, before the accident, there was a big difference between the speed given by Tesla and that given by the owner. Finally, through multiple verification, it can be proved that Ms. Zhang's father did not exceed the speed limit, which also means that there is a problem in the speed part of Tesla's public data.

此外，这些数据本身缺乏很多关键信号信息，如开关踏板打开、电机信号、制动踏板位置信号和ibooster/ESP信号等，因此无法准确判断事故过程中发生了什么。

In addition, this data itself lacks a lot of key signal information, such as switch pedal opening, motor signal, brake pedal position signal and ibooster / ESP signal, etc., so that it is impossible to tell exactly what happened during the accident.

需要注意的是，特斯拉的背景数据和EDR将如实记录。

It should be noted that the background data and EDR of Tesla will be recorded truthfully.

背景数据。事实上，在之前的"刹车失灵"事件中，特斯拉提供的数据都来自于此。它主要存储车辆行驶过程中产生的数据，但这部分数据存在疑问，可以修改。

Background data. In fact, in the previous "brake failure" incidents, the data provided by Tesla all came from this. It mainly stored the data generated in the process of vehicle driving, but this part of data was questioned and could be modified.

这并不是特斯拉第一次在这方面受到质疑。

This is not the first time Tesla has been questioned in this regard.

网上旅游一直处于"监控"状态？被甩了？"被骗了？""我再也不敢开特斯拉了"描述了一位特斯拉车主在维权时，特斯拉给出的官方参数记录与车辆行车记录仪上记录的数据相差几秒钟。车主要求提供数据后，特斯拉说他不能提供。

Online travel has been in the "monitored? Being dumped? Being cheated? "I dare not drive Tesla any more" describes that when a Tesla owner was defending his rights, there was a few seconds difference between the official parameter record given by Tesla and the data recorded on the vehicle's dash cam. After the owner asked for the data, Tesla said that he could not give it.

采访者提供的维权者与特斯拉员工沟通的截图

Screenshot of communication between rights owners and Tesla staff, provided by interviewees

相反，事件数据记录器（EDR）读取的数据类似于飞机上的"黑匣子"。据了解，该设备只支持物理接触阅读，即与车辆接触，插上电缆下载阅读，且只能阅读不能修改。

In contrast, EDR (event data recorder) reads data similar to the "black box" on an airplane. It is understood that the device only supports physical contact reading, that is, contact with the vehicle, plug in the cable to download and read, and can only read but not modify.

不过，鉴于特斯拉只表示此次披露的安阳车主数据来自原始数据，但并未明确是来自背景还是EDR，因此特斯拉提供的数据的有效性仍存在疑问。

However, in view of the fact that Tesla has only said that the data about Anyang car owners disclosed this time is from the original data, but it has not made clear whether it is from the background or EDR, so the validity of the data provided by Tesla is still in doubt.

"特斯拉当然知道如何追求优势，避免劣势。对于对自己有利的数据，肯定会用来对付维权的车主。如果对自身不利，可能会选择不披露相关数据。"汽车零部件检测工程师王伟对记者说。

"Tesla certainly knows how to pursue the advantages and avoid the disadvantages. For the data that is beneficial to itself, it will certainly be used to deal with the car owners who safeguard their rights. If it is not beneficial to itself, it may choose not to disclose the relevant data." Wang Wei, an auto parts testing engineer, said to the reporter.

对于特斯拉来说，它可以做到这一切，因为在数据方面，特斯拉既是运动员又是裁判。总之，特斯拉一方面可以管理整个驾驶数据，另一方面可以将存储的数据作为某些事故的证据。

For Tesla, it can do all this because in terms of data, Tesla is both an athlete and a referee. In short, on the one hand, Tesla manages the whole driving data, on the other hand, it can take the stored data as evidence of some accidents.

途远特斯拉官方微博

Tuyuan Tesla official micro blog

正因为如此，"这个数据没有可信度。这是一种消遣或拖延。这并不能证明特斯拉自己的清白。"中华人民共和国工业和信息化部汽车行业专家智库成员张翔告诉《未来汽车报》。

Because of this, "this data has no credibility. It's a diversion or a delay. It doesn't prove Tesla's own innocence." Zhang Xiang, a member of the automotive industry expert think tank of the Ministry of industry and information technology of the people's Republic of China, told futureauto daily.

鉴于安阳车主的整体维权，据张女士弟弟回忆，她最初向特斯拉寻求公开数据，特斯拉拒绝了这一要求。之后，在舆论压力下，特斯拉表示可以披露数据，但需要到指定的第三方检测中心进行检测，但车主拒绝了这一要求。

In view of the whole rights protection of Anyang car owners, according to Ms. Zhang's younger brother's recollection, she initially sought public data from Tesla, and Tesla refused this request. After that, under the pressure of public opinion, Tesla said that it could disclose the data, but it needed to go to the designated third-party testing center for testing, but the car owner refused the request.

"拒绝这个请求的原因很简单。经调查发现，特斯拉成立的第三方机构只有认证资质，没有检测资质，这是绝对不认可的。张女士的弟弟对她说："如果你想找第三者，你必须找到双方都承认。"。

"The reason for rejecting this request is very simple. After investigation, it is found that the third-party organization established by Tesla has only certification qualification but no testing qualification, which is definitely not recognized. If you want to find a third party, you must find both parties to recognize it." Ms. Zhang's younger brother said to her.

事实上，要找到这样的机构并不容易。

In fact, it's not easy to find such an institution.

"目前，在中国能做这种检测的第三方机构屈指可数。如果他们也能查出智能车的交通事故责任，基本上没有这样的组织。"王伟对网游说。

"At present, there are only a few third-party organizations that can do such detection in China. If they can also detect the traffic accident liability of smart cars, there is basically no such organization." Wang Wei said to the online travel.

另外，目前国内还没有一套现行的法律法规可以强制车辆企业将获取的不可修改的数据存储，或者将形成的数据存储在至少两个以上的第三方组织中，以保证数据的安全性，合理、充分地利用数据。

In addition, at present, there is no set of current laws and regulations in China that can force vehicle enterprises to store the acquired data that cannot be modified, or store the formed data in at least two or more third-party organizations, so as to ensure the data security and make reasonable and full use of the data.

Link：https://new.qq.com/omn/20210430/20210430A08J3V00.html

update time：2021-04-30 18:32:09