Previously, the Ministry of Industry and Information Technology's newly revised "Technical Conditions for the Safety of Motor Vehicle Operation" required that from January 2022, newly produced passenger cars must be equipped with EDR systems, that is, driving event recorders. The device, known as the black box of the car, can record the vehicle operation data before and after the accident. In the future, the "Rashomon" events involving intelligent driving, such as Tesla brake doors, are expected to be "hammered" through the data of the black box.
"Motor Vehicle Operation Safety Technical Conditions" National Standard No. 2 Amendment Order
In this regard, many car owners have questions: what is the device of EDR? Why install EDR? Let's take a look at it now.
The Ministry of Industry and Information Technology publishes relevant standards / the website of the Equipment Center of the Ministry of Industry and Information Technology
The National Standard No. 2 amendment to the "Technical Conditions for the Safety of Motor Vehicle Operation" stipulates that from January 1 this year, newly produced passenger cars in China should be equipped with "EDR" that meets the requirements. This device, commonly known as the car black box, is triggered when the vehicle collides or the speed changes drastically, and the recording begins. Cao Guangping, an independent researcher of new energy vehicles, introduced: In the accident, the driver's behavior of stepping on the brake pedal, EDR will save the brake signal from how many milliamperes to how many milliamperes, including deceleration, finally stop, the whole process will be recorded.
In addition to recording the driver's control data, EDR will also record the state of the vehicle, the Chinese Academy of Sciences Strategic Consulting Institute Industrial Science and Technology Innovation Center Automotive Industry Special Researcher Lu Wenliang introduced: for example, speed, longitudinal and lateral acceleration, steering wheel angle, brake throttle status, etc., especially when the auxiliary driving function of the vehicle accident, EDR can distinguish whether it is the vehicle system failure, or human operation error, help us to determine the responsibility of the accident.
At present, 99% of new cars listed in the United States are equipped with EDR, and about 10% of new cars in mainland China are equipped. BMW, Mercedes-Benz and other luxury cars, as well as new energy vehicles such as Weilai and BYD, are mostly equipped with EDR, and the average cost is about 1,000 yuan. Cui Dongshu, secretary general of the China Passenger Vehicle Association, said that next year's large-scale equipping of new cars with EDR will not cause a rise in car prices.
Cui Dongshu: The cost is relatively low, that is, the concept of 300 to 500 yuan, manufacturers can overcome this impact, will not increase the cost of consumer car purchase.
Source: The official website of the Equipment Industry Development Center of the Ministry of Industry and Information Technology, released in Hubei
Editor: Dong Tianyuan Proofreader: Guo Shuyan
Editor-in-charge: Wang Xingyuan Review: Wang Han