Share the QR code < / P > < p > with friends and circles of friends < / P > < p > < p > on September 27. Although the National Transportation Safety Board (NTSB) is deeply worried about the security of Tesla's "full automatic driving" (FSD) software, the electric vehicle manufacturer has now allowed more owners to use the "request" button on the dashboard screen, Join the FSD test program < p > however, the updated page on Tesla's website shows that the company will use five criteria to evaluate their "driving behavior" before car owners can access FSD software. With this new system, Tesla will be able to encourage drivers to drive safely, which may make the FSD test project more smoothly and reduce accidents < p > this system is called the safety scoring system. It uses the table made of the data collected by Tesla's on-board sensors as the standard to evaluate the owner's "possibility of collision in future driving". The system considers five safety factors, including forward collision warning every 1000 miles (1600 km), emergency braking, sharp turning, unsafe following and forced takeover of autopilot < p > Tesla uses a predicted collision frequency (PCF) formula, which is based on the statistical modeling of 9.6 billion km Tesla fleet data to predict the number of possible collisions per 1.6 million km. PCF will be converted into a safety score between 0 and 100, and then viewed through Tesla application < p > according to the safety scoring guide, when the system determines that the owner's hands are removed from the steering wheel and his attention is not focused enough, the autopilot function will exit after three visual and audio warnings < p > this guide does not indicate the safety scoring standard Tesla believes can be added to the FSD test, but it indicates that most drivers will score 80 points (out of 100 points). FSD beta software can not make Tesla cars fully autonomous, and the driver must always maintain control over the vehicle < p > the safety scoring system will be updated every time Tesla car travel is started. If the vehicle is connected to the Internet, the safety scoring system can provide immediate feedback during driving. All trips exceeding 0.1 mile (0.16 km) are considered valid driving trips and may affect the driver's rating < p > the safety scoring system is specific to specific vehicles, so drivers with multiple teslas may have different scores on each vehicle. When the car is sold, the safety scoring system will be reset, which means that Tesla's new car owners will not be affected by the scores of the former drivers. If drivers buy a new car, they can't keep their safety score from the previous car < p > Tesla opened the FSD beta one year in advance after opening it to selected customer groups. The company launched the FSD monthly subscription package in July for $199 a month. For Tesla owners who have purchased the enhanced autopilot package, the monthly subscription fee is $99. Previously, the FSD package was sold at a price of 10000 yuan. According to the terms on Tesla's website, Tesla owners can cancel their monthly FSD subscription at any time < p > Jennifer homendy, chairman of NTSB, said last week that Tesla should first solve "basic safety problems" before expanding the scope of FSD test, and said that the company's use of the word "fully automatic driving" was "misleading and irresponsible". Khomendi said Tesla "clearly misled countless people to abuse its technology". NTSB can investigate and make recommendations, but it has no enforcement power. (small) < / P > < p >