On the evening of March 14/around Kloc-0/0, Tian Weigang, deputy squadron leader of Xitong Squadron of Higher Education Brigade of Traffic Police Detachment of Weinan Public Security Bureau, arranged for his colleagues to drive three lanes into the mountain pass, and a white Mercedes-Benz passed through Huayin toll station with a bang.
On the afternoon of March 19, Tian Wei, who had just finished his task, told the reporters of the rule of law weekend about the "Mercedes-Benz out of control" incident he had experienced.
"The driver said the door opened and slowed down. But I was on the phone, and for some reason, the phone was cut off. I tried to dial again, but it was always a busy tone. Later, I contacted him, and he said that he could control the speed and had driven to the roadside emergency lane. Later, he drove to the station parking lot and stopped. "
The story of "120km speed of life and death" on Henan-Shaanxi Expressway has aroused widespread concern in the society because the protagonist and Mr. Xue, the owner of Henan Province, have different opinions.
During the rule of law weekend, the reporter called Mr. Xue several times from the afternoon of March 16, all of which showed that his phone was turned off. Later, he posted on Sina Weibo that "I refused to be interviewed by any media until the test results came out".
However, judging from Mr. Xue's previous statements in interviews with other media, he thinks that he is not at fault, but he did not pay the high-speed fee when speeding and did not thank the traffic police. However, his "high-speed fright" experience has been questioned by many netizens and professionals.
For example, is the vehicle speeding out of control at 120km? How did you finally "miraculously" stop safely Mr. Xue said: "I will hit my face after the truth is announced." Who will I hit in the face? Who will be mainly responsible for this incident?
According to the opinions of all parties, the rule of law weekend reporter combed the seven unsolved mysteries of the incident from the aspects of technology, driving speed, use of accessories, car condition, psychology and law.
Doubt and doubt
One: Will cruise failure cause the vehicle to get out of control? Mr. Xue said that under normal circumstances, the cruise can be cancelled by stepping on the brakes, but it could not be cancelled at that time. The 4S shop technician said that he could take out the key, but after he took out the key, the vehicle still didn't turn off the engine and power off. Pressing the electronic handbrake while driving would give an alarm sound, which has been invalid.
In this regard, Mr. He, an engineer of a German automobile company, said in an interview with Beijing time that the vehicle was completely out of control when cruising at a constant speed, and it was almost impossible for ECU (special microcomputer controller for automobiles) and brake lights to synchronize. If the rear door can be decelerated, it means that the ECU functions normally and contradicts itself.
"Cruise failure and out of control are two different things. In the case of cruise failure, as long as the logic is fine, you can still quit by stepping on the accelerator or braking. At present, Mr. Xue's vehicle braking system is not faulty and can brake, but I don't know why it can't. It may be that when he stepped on the brakes, the sense of deceleration was not obvious and he felt that there was no brake. This is doubtful. " Liang Xu, an automobile engineer, explained to the rule of law weekend reporter.
Doubt and doubt
Two: Can the brake failure be slowed down for maintenance? Han Hanfa Weibo, a well-known writer and racing driver, said that although most modern vehicles are electronic throttles and electronic brakes, in terms of braking, electronic signals are only responsible for boosting pumps, and feet can also push hydraulic brake discs, which is nothing more than power failure.
(Photo/Text/Photo: Pacific Auto Network Q&A called Beast)