National regulations: From January 1, 2020, all passenger cars in production will begin to implement the mandatory installation of TPMS (Tire Pressure Monitoring System) requirements. That is to say, now that we buy new cars, the original factory has its own tire pressure monitoring system. Because this is something that is mandatory by national policy.
From January 1, 2022, all new cars
Force the installation of the EDR system
Now the state has given new regulations again: GB 7258-2017 "Motor Vehicle Operation Safety Technical Conditions" National Standard No. 2 amendment order was issued, stipulating that from January 1, 2022, all passenger cars in production will begin to implement mandatory installation of EDR (that is, Event Data Recorder, automotive event data recording system).
Automotive Event Data Logging System? What is this? In simple terms, we can understand it as "the black box on the car". If you use the analogy of an airplane, if the aircraft encounters an accident, the investigator only needs to find the black box and analyze the content recorded inside, then the cause of the accident can be accurately identified, distinguishing whether it is a mechanical failure or human operation.
The number of traffic accidents has increased year by year
The awareness of "leaving evidence" has been widely popularized
The real reason for the state to make EDR into the national standard and mandatory promotion is related to the increasing number of motor vehicles in China and the increasing number of drivers in recent years. According to the China Economic Voice Radio Station, as of December 1, 2021 (this year), there are more than 390 million motor vehicles in China, and 490 million driver's license holders.
In the first quarter of this year alone (January to April), 9.96 million new motor vehicles were registered, a record high in the same period. China's motor vehicle ownership, total number of drivers and increments, ranked first in the world. What followed was an increase in the number of traffic accidents year by year. As a result, the workload of investigating the cause of the accident and how the responsible persons on both sides were held accountable has also surged.
The more evidence left by either party, the more effective it is, the more favorable it is for the determination and division of responsibility, and in the face of sufficient evidence, the other party just wants to deny it. Therefore, in recent years, the popularity of driving recorders has been extremely fast, and there are almost no car owners who refuse to install driving recorders (here is sad for people who are still living on low-level porcelain today, and their IQ cannot keep up with the times).
"Car failure" is increasingly heard these days
Investigation and evidence collection is difficult and takes a long time
But with the continuous popularization of new energy vehicles, we are familiar with another new word - car failure! Whether it is a bicycle accident or a double-car or multi-car accident, we can always hear the owners complaining: it is not that I operated improperly, but that I had no problem operating at the time, that the car did not listen to the call, and the car failed!
Once the owner makes such a claim, the traffic police department has to find a way to investigate, through the technical identification of the vehicle, and finally give the most logical scientific explanation. To give a simple example: the owner insisted that he had stepped on the pedal with all his strength, but still rear-ended. Then we need to check the cameras near the scene (if any) to see if the vehicle's brake lights are on, and to check whether the road surface has left brake marks.
The reason is simple to say, but it is often difficult to do. There was no camera nearby, or the camera was broken; then it rained again, leaving no trace on the road... The difficulty of investigation and evidence collection has skyrocketed. Therefore, there is the advent of the "car black box" EDR.
How the EDR system works:
As long as the body is in intense motion, it will start
The range of data logging covers everything
EDR in the normal and smooth driving of the car, is in the "sleep state", when the vehicle suddenly violent movement (such as high-speed driving, a slamming direction) or vertical sudden violent movement (such as high-speed driving, suddenly strong braking), will "wake up" EDR, it will enter the working state in an instant, record the important operation data of the vehicle, and maintain for a period of time.
In this way, in the event of an accident, EDR can record the data of all the details before and after the accident. The data recorded ranges from engine speed, vehicle speed, accelerator pedal depth, brake pedal pedal depth, brake system tubing pressure, steering wheel angle, transmission gear, and all other parameters such as whether and when the airbag is turned on.
That is to say, as long as the EDR data is retrieved afterwards, the cause and effect of the accident can basically be reproduced: how fast the car was at that time, whether it was speeding, the vehicle suddenly hit the direction, or braked sharply, and then how the steering wheel turned, whether the driver stepped on the accelerator or stepped on the brake, how hard (how deep) the pedal was, and whether the brake lights were bright or not...
The first benefits of the EDR system:
Exclude the possibility of "perjury" by a party
In the face of detailed data and evidence, the possibility of "perjury" by the parties is also excluded. For example, the novice driver encountered an emergency, should have stepped on the brakes, but stepped on the accelerator, and afterwards insisted that he had stepped on the brakes, and the vehicle did not respond... Sorry, in front of the EDR data, there is no need to ask the parties for half a word! The data is tuned, and the cow, ghost, snake god all appears...
And with EDR, it can also help the traffic police department to judge and determine whether the vehicle is out of control. For example, after an accident, the EDR data shows that the owner stepped on the brake pedal, and the depth is very deep (to the end), the brake lights are also on, but the speed is not reduced, and even faster and faster... Look again, there is no pressure in the brake tubing... You get the idea!
The second benefit of the EDR system:
Let the problem of vehicle failure "reveal"
Isn't this a typical vehicle brake system failure? The owner did the correct maneuvering, and it was the vehicle that did not perform the correct mechanical action. - This can not blame the driver, but the car company needs to be responsible and explain why the car is failing. Therefore, the author thinks that forcing car companies to install EDR is a good thing.
The first is to block the possibility of the driver's own operation mistakes and not admit it afterwards; the second is that if the vehicle really fails, there can be enough evidence chain, and the car company can't rely on it; the third is to make it impossible to deliberately fake the accident to cheat insurance. Looking at the United States, after September 2014, all vehicles sold in the United States were mandatory equipped with EDR, and Europe was even earlier.