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According to the 1818 Golden Eye, a Xiaopeng P7 in Ningbo, Zhejiang Province, hit the brakes but did not respond when it turned a corner in the basement, and finally rubbed against a pedestrian. The owner questioned that there was a problem with the brakes of the Xiaopeng P7 because the speed had already been shown to be zero at that time, but the vehicle was still moving.

According to the driving recorder provided by the owner, the floor of the garage was flat and a little wet at that time, and the owner's speed was 18km/h at first. It was suspected that the owner's speed changed to "0" after stepping on the brakes, but the car was still moving forward. In addition, the basement surveillance video shows a Xiaopeng P7 driving forward at the entrance and a girl passing in front of the car, but Xiaopeng P7 seems to show no sign of stopping, still driving forward, and finally rubbing against the girl. Xiaopeng P7 only stopped after crossing the yellow warning line. In this regard, the car owner believes that "Xiaopeng P7 brake failure, background data show that there is no problem with the vehicle, stepped on the brakes for 4 seconds, but these 4 seconds Xiaopeng P7 has no sign of stopping."

Xiaopeng auto-related staff also responded, through surveillance video and background data analysis showed that the vehicle was driving on the waterlogged epoxy floor. The vehicle is still in a state of acceleration before entering the parking area of the underground garage, and then the customer presses the brake pedal to brake. Due to the slippery ground, the ABS (Anti-lock Brake system) is triggered, and the vehicle braking system is not abnormal. According to all the verifiable information of the vehicle at present, it is impossible to draw the conclusion that there are any quality problems in the vehicle, nor can it satisfy the owner's request for further compensation. In addition, Xiaopeng Automobile said that it is willing to cooperate with customers to find qualified third-party testing institutions to test the vehicle brake system, as far as possible to meet the reasonable demands of customers.

Judging from the comments, most netizens expressed support for Xiaopeng Motor. Netizens said, "if you don't open the video, you will know the epoxy floor, and sometimes you will fall down if you walk too fast."when you drive a 18km/h in the garage of so many people, you can't stop the brakes."this kind of glossy epoxy and water is equal to ice, and the heavier the car is, the harder it is to stop. If it hadn't been for the speed bump, there might have been more serious accidents.

Yesterday, 1818 Golden Eye reported another accident with the same process. According to reports, Mr. Liang from Hangzhou drove Tesla into the company basement and hit a Mercedes-Benz while turning the corner. He thought there was something wrong with Tesla's brake system. According to the surveillance video provided by Mr. Liang at the scene of the incident, when Mr. Liang was driving through a turn in the basement, he passed a speed reducer and crashed into a Mercedes-Benz parked to one side, and there were obvious water stains on the ground and rutting marks could be seen on the water stains. Basement surveillance video: 08:46:23, the whole car drove into the surveillance, brake lights on, 46 minutes 25 seconds, hit the Mercedes-Benz. If only from the monitoring point of view, the braking time is about 2 to 3 seconds, if Mr. Liang has stepped on the brakes before entering the monitoring, then the braking time will be even longer. When the reporter asked whether the car was fast at that time, Mr. Liang said that "the speed is not fast, only 20 yards."

Mr. Liang produced a written report given to him by Tesla, which stated that there was no warning of faults related to the braking system; the vehicle drove on the epoxy floor and there were a lot of water stains; the driver drove at a speed of 24 kilometers per hour before stepping on the pedal, and then the ABS moved. according to the situation at the scene, the adhesion between the tire and the ground is low. ABS can improve braking distance, but it cannot go beyond the laws of physics or prevent the danger caused by tire skidding. The ABS system mentioned in the report, that is, the anti-lock braking system, is designed to prevent the wheels from locking while braking and to ensure maximum adhesion between the wheels and the ground.

Later, Tesla sent a written reply from the Ministry of Foreign Affairs, and the overall content was basically consistent with the previous written report to Mr. Liang. Tesla believes that the speed is too fast leading to a common skidding collision accident, which has nothing to do with the quality of the vehicle, and stressed that the speed limit of the epoxy floor of the underground garage is generally 5 kilometers per hour. It is difficult for Mr. Liang to accept the explanation given by Tesla.

The epoxy floor is mainly composed of an organic material called "epoxy resin". The stagnant water falls on the epoxy floor as if the water is poured on the oil, forming a water film, which greatly reduces friction, which is also the reason for the frequent accidents on the epoxy road surface with stagnant water. So is it "brake failure"? We have no way to prove it, but there are many accidents caused by the slippery road surface of the epoxy floor. generally speaking, when driving in the epoxy floor with stagnant water, we must control the speed below 5 mph in order to ensure a sufficient braking distance and avoid accidents.

On the evening of May 13, 2021, Tesla accident occurred in the underground garage of a residential district in Binjiang, Hangzhou, which was also on the slippery epoxy floor pavement. Tesla responded to this: 1. The road surface of the underground garage driven by vehicles is made of epoxy material. there was rain in Hangzhou on the day of the incident, and there were a large number of Rain Water residues on the ground due to the entry and exit of many cars. The driving speed of the vehicle before braking is 30.56km/h, and the driver presses the brake pedal twice. Under the action of the braking system, the speed before collision is reduced to 6.72km/h, and the ABS starts normally during the braking process. two。 After the accident, we carried out a comprehensive inspection of the vehicle braking system and found nothing abnormal.

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