New energy vehicles have higher requirements for safety, and traditional evidence is no longer able to meet the requirements of vehicle accidents; Tesla events or will boost EDR accelerate landing.
The gathering network news, Teslawi's owners and Tesla have conducted a long-term power-saving knot, the focus of both parties lies in the cause of the vehicle accident.
After the Shanghai Auto Show, under the official order, Tesla was submitted to the vehicle data before and after the accident on April 22. It shows that the vehicle speed is as high as 118.5km / h, which is a speed of the driver; Measures to 48.5km / h prior to occurrence of vehicle collision; Tesra believes that the accident is not a vehicle cause, but the driving operation is caused.
And the rights of the rights, the owner of the rights, the most deadly, the most deadly, the most deadly, the brakes have failed before the incident, which is the real reason for the accident; the owner thinks Tesla Data is not raw data.
The event is still further identified, and regardless of the result, it is certain that this data will become a breakthrough in breaking the two sides, further restore the truth. Where is the data submitted by Tesla? This is our key to the "black box" --edr (car event data recording system) that we focus on today.
Car intelligent urged EDR landing
Automotive electricization, network linkage, intelligent, sharing has become a development trend of the times, new energy vehicles, Internet cars, automatic driving vehicles, etc. New concepts continue to emerge, 5G, artificial intelligence, car network, intelligent control and other technologies are constantly being Introduced into the car.
As with, there are more and more automotive electric control systems, more and more complex operations, various sensors, electronic controllers (ECUs), drivers and control program software constantly loaded into the car, bringing us a new While driving experience, it also increases the safety challenge of vehicle. Traditional fuel vehicles are usually caused by human factors, such as overtaking, fatigue driving, drunk driving, etc. Incorrect driving behavior, and new energy car driving, if there is a problem in automotive control systems, it may lead to driving safety accidents, such as Brake system failure, partial car function downtime, etc.
Baidu Apollo Information Security Senior R & D Engineer Wang Mingwei believes that automobile intelligence will bring three types of security issues: First, the electronic electrical system failure, system function is limited, function security; second, the driver misuse, The security risks brought by mistakes; the third is a safety hazard caused by environmental factors such as environmental interference, cyber attack, and information security.
If the automotive control system causes a driving accident, then the evidence and accountability will become invisible, and there is often an accident related factor to collect and analyze the complicated, responsibility, and how to demonstrate the safety and reliable car industry. Therefore, the industry requires new energy vehicles to have the "black box" function to accurately reduce the truth when there is an accident in smart cars.
This black box is an EDR (Event Data Recorder), that is, the car event data record system is a similar airplane, the train data record device for recording the vehicle collision, when collision, the corresponding time series in the three stages of the collision Vehicle kinetic data and data of different control modules within the automotive unit.
EDR supported data: car speed, steering wheel steering angle, engine operation status, vehicle steady state, brake pedal condition (ABS, etc.), throttle stepping position, seat belt use status, airbag state, driving auxiliary system status, vehicle occurrence The speed change after collision.
Based on these data, it helps to identify the vehicle status of the accident before the accident after the accident, and provides a basis for judging the owner of the accident.
In fact, before the rise of new energy vehicles, EDR has been applied to fuel trains.
General Motors introduced EDR in the selected model in 1974, mainly for control and record airbag status; US National Road Traffic Safety Administration (NHTSA) issued EDR definition and related standards in 2006 (49 CFR Part 563-Event Data Recorders, requiring the vehicle needs to meet the relevant technical requirements from September 1, 2012, and after the manufacturing of the accident; December 2012, it is more compulsory to September 2014. The production of light cars must be installed EDR.
Although the bill will not be enforced, but the US new car has a large number of EDR installations, Global Network reported on December 10, 2012, all vehicles sold in the United States, Ford, Toyota, Mazda and other vehicles sold in the United States. EDR is implanted, and 96% have been installed in the 2013 models have car black boxes. Ziss Si-Guangzhou research also analyzed that 99% of the new car listed in the United States in 2019 were equipped with EDR.
In addition to the United States, other major auto production countries and regions in the world have also introduced relevant EDR policies:
· South Korea: Since December 2015, the EDR is required for vehicles including stock cars.
· Japan: Refer to the US CFR 563 regulations to launch a J-EDR industry standard, but not enforced;
· EU: Since 1970, it has been mandatory commercial vehicles to install driving recorders, but the EDR has never been unified; until March 2019, the European Commission has passed the laws and regulations for the installation of new security systems, requiring listing vehicles. Emergency braking system, lane deviation early warning system, speed limiter, alcoholic sensitive mesh self-locking device, driver monitoring system, emergency brake reminder device, reversing camera and driving recorder and other safety devices; this provision is scheduled for 2022 In May, the new model will take effect on the new model, and the model is taken into effect after May 2024.
In addition, 2020, the United Nations WP.29 EDR International Regulations Drafting Group 4th meeting invited the WP.29 Parties to the EU Committee (European Commission) and international automotive manufacturer (OICA), European car More than 60 experts in the Partner Suppliers Federation (CLEPA), International Automotive Testing Association (CITA), jointly study the technical requirements of EDR international regulations.
China EDR standard is implemented in 2021
As the world's largest auto production, sales, China is also aware of the development of new energy vehicles, and it is also aware of automobile intelligence to the impact of safety management, and starts to set up EDR related regulations to strengthen automobile safety specifications.
In September 2017, the State Market Supervision Administration, the National Standardization Administration Committee approved the GB7258-2017 "Safety Technology Conditions for Motor Vehicle Operation", of which Article 8.6.6 stipulates that the passenger car should be equipped with a specific event such as a collision. Event data recording system (EDR) of data information such as vehicle driving speed, braking state, etc. If equipped with a car video driving record device that meets the standard, it should be considered to meet the requirements; the requirements start from January 1, 2021 Implementation.
The GTH National Standards Committee also issued a plan for mandatory national standard "Automobile Event Data Record System". This standard is divided into two categories: A-level and B-class data on EDR; there are 23 data requirements for the A-level records and 50 items at level B. For details, please see below:
Source: Car Regulations
Standard simultaneously stipulate that the recording requirements of the A-level data elements have begun to implement from January 1, 2021; the record requirements of the B-level data elements specified in this standard are implemented since January 1, 2023. However, my country has not yet been enforced.
For a long time, the relevant management departments and individuals of my country's traffic police have mainly obtained vehicle traffic information through driving recorders, with road monitoring systems, many vehicle accidents can be accurately restored and responsible, with more intuitive intuitiveness than simple recording data. , Simple, convenient; additionally, EDR's hardware cost is higher, and Zi Si-Guangzhou is analyzed in analyzing EDR applications. The EDR system read tool (CDR) is mainly provided by Bosch, and the entry-level CDR price is $ 7100 / Set, there is a $ 1,000 software upgrade fee, the professional version is $ 18,000 / set; Kia, Modern, Subaru, Mitsubishi and other car companies have a CDR price of $ 6300-7,000 / set, and the annual software Maintenance is still unsaptable.
These reasons make EDR's application value is not high, and countries choose to enlarge the enforcement of EDR when promoting. However, with automotive intelligence, the original information acquisition method, including driving recorder, has not been able to meet the needs, and provides possible possible for EDR flooring and promotion.
At the same time, the existing means is a dead angle in the collection of vehicle data, which is not conducive to the responsibility of the accident. A multi-car collision accident occurred in September 2016, led to a serious consequence of 1 death, 5 injured; during the accident identification, witnesses and drivers called the vehicle uncontrolled sudden startup, and brake The device has failed; the event is also directed to the vehicle problem. However, after adjusting the car EDR record, it confirmed that the event is the driver's fault to cause the throttle as a brake and panic.
This event indicates the importance of EDR to the vehicle accident approach to vehicle accident angles.
With the continuous rise in new energy car sales, there are no reports of vehicles from time to time at home and abroad. In addition, vehicles are not frequently reported in no reason, and such non-human accidents are also increasing, giving various countries It has brought difficulties in the identification work, and the demand for collecting richest vehicle data is increasing, these are accelerating DER to become the standard of new energy vehicles.
In response to the beginning of the article, the owner of the owner questioned Tesla data, an automotive engineer analyzed that Tesla EDR data has two, a vehicle local, a Upload Tesra data center, theoretical data It is possible to be modified; of course, in the case where no conclusive evidence, we have no right to question the authenticity of driving data.
EDTOR: JQ, Read the full article, original title: Tesla Wei rights event or will boost the "black box" EDR accelerate
Article Source: [Micro Signal: GH_EB0FEE55925B, WeChat public number: Semiconductor Investment Alliance] Welcome to add attention! Please indicate the source of the article.
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