Share with friends and circle of friends with wechat scan QR code < / P > < p > Author: & nbsp; Ye Zhen < / P > < p > in < a target = "_ blank" href=" https://news.163.com/news/search?keyword=%E7%89%B9%E6%96%AF%E6%8B%89 "> after Tesla announced the abandonment of radar on some models this week, < a target ="_ blank" href=" https://news.163.com/news/search?keyword=%E7%BE%8E%E5%9B%BD "> a number of U.S. < / a > organizations responded and announced that they would no longer endorse the safety of some Tesla models The National Highway Traffic Safety Administration (NHTSA) official website showed on Wednesday that the Tesla Model 3 and model y models produced on and after April 27 will no longer be provided with the agency's safety detection signs for multiple functions, including forward collision warning, lane departure warning, collision impending braking and dynamic braking support < p > the day before, Tesla announced that from May 2021, the model 3 and model y sold in North America will no longer be equipped with radar, and the auxiliary driving system will all be identified by camera < p > American non profit organization < a target = "_ blank" href=" https://news.163.com/news/search?keyword=%E6%B6%88%E8%B4%B9%E8%80%85%E6%8A%A5%E5%91%8A "> consumer reports and the Insurance Institute for highway safety also announced that they have suspended some key safety endorsements for Tesla's models < p > "consumer report" said that 2021 Tesla Model 3 will no longer be included in the "preferred list", while IIHS plans to remove the title of "safety preferred +" from model 3 If Tesla can fully restore all the functions of these models, it can win back the safety recommendation, said Jake Fisher, senior director of consumer report automotive testing center < p > the communication between automobile manufacturers and potential customers usually takes these industry endorsements as their own advantages. The loss of these security endorsements could affect Tesla's sales and marketing power < p > in addition to the above models, the model s and X, model 3 and model y, which are produced by Tesla for the market outside North America, are still equipped with radar technology < p > radar was previously considered to be an important part of Tesla's advanced driving assistance system. Tesla wrote in a blog post published in 2016: < / P > < p > "< a target ="_ blank" href=" https://news.163.com/news/search?keyword=%E8%87%AA%E5%8A%A8%E9%A9%BE%E9%A9%B6 "> the most important upgrade of the autopilot < / a > instrument will be to use more advanced signal processing and use airborne radar to generate images of the world. In October 2014, radar was added to all Tesla models as part of the autopilot hardware suite, but only as a complementary sensor to the main camera and image processing system. After careful consideration, we now believe that it can be used as the main control sensor without requiring the camera to confirm visual image recognition. " < p > What Wall Street has seen and heard mentioned earlier is that in terms of the key technology of automatic driving, there are two distinct factions in the industry: the vision faction and the lidar faction. Tesla is a clear-cut visionary, and musk has disclosed the diss lidar more than once < p > this week, media reported that Tesla signed a contract with luminar, a lidar company, to test and develop laser sensor technology < p > the news triggered a lot of speculation. Some analysts believe that Tesla engineers may be benchmarking their laser centric automatic driving systems with lidar. Of course, they may also be testing the future use of lidar. p>