Nowadays, the most concerned in the automotive field is pure electric vehicles and driverless technology. Tesla, as the most outstanding representative in the field of electric vehicles, can basically lead the development direction of the entire electric vehicle market. As a new car manufacturer with a bloody technology, Tesla's ambition is not only in the field of electric vehicles, but also the unmanned car is a development direction that Tesla is very concerned about.
At present, the most concerned about driverless cars is Google. At present, many states in the United States can see that Google is testing driverless cars, and the outside world seems to have been looking at Google’s driverless cars. . Although manufacturers including Mercedes-Benz and Volvo have been developing driverless technology, but when it comes to driverless cars, everyone must first think of Google. And Tesla does not seem to attract too many people's attention on driverless cars. But just this week, Tesla CEO Elon Musk publicly stated on his Twitter that Tesla will officially calculate the latest version 7.0 system from the global Model S owners on October 15th, US time, and in this version. In the meantime, Tesla will officially bring some auto-driving technologies to global car owners, such as automatic line change lanes, automatic turn-on turn signals, control steering wheel and enhanced version of automatic reversing technology.
In fact, before Tesla's 7.0 system, many automakers equipped their models with similar active safety and assistive technologies. In many models, we can see many of them have similar purposes. Before the release of Tesla's new 7.0 version of the system, we can take a look at what are the main active safety and driver assistance technologies currently available on the market.
Automatic brake emergency brake
This technology is well understood. The car equipped with this technology can use the radar probe or camera sensor equipped in front of the car to monitor the obstacles in front. The driving computer automatically detects whether there will be any information according to the speed and distance. A collision hazard occurs. In driving, if the driving computer finds danger, such as acceleration too fast, too close to the front car, or sudden braking of the front car, the car will first make a sound to remind the driver. At this time, if the driver still does not respond in time to solve the dangerous state, the vehicle will automatically brake.
The representative of the automatic brake technology is Volvo, a Swedish manufacturer based on safety. Volvo has developed a pedestrian safety system called City Safety that automatically detects the center of the road. When you drive at a speed of no more than 15 km/h. This system can automatically brake to help you avoid collisions. However, when the speed is higher than 15 km/h, the collision is basically unavoidable, but the vehicle will still brake with full force to minimize the collision.
Driver assistance system
![[Chezhihui] Unmanned driving: mainstream active safety system technology](http://i.bosscdn.com/blog/10/53/5V/524-1.jpg)
Driver assist technology is a combination of multiple auxiliary functions, including lane departure warning, tracking assistance, night vision assistance, adaptive cruise and more. These techniques can prompt the vehicle to deviate from the lane warning, identify the driver's state, improve the nighttime driving safety of the vehicle, and do not need to control the throttle automatic maintenance speed without the driver's manual operation.
Among the models with driver assistance systems, the new S-Class sedan from Mercedes-Benz is the representative vehicle with the most comprehensive driver assistance. The car is equipped with more than 10 sensors, radars and cameras. In addition to the preventive safety system, it also features the latest driver attention support system. The system can even monitor the driver's attention level by continuously identifying the relevant parameters of more than 70 drivers, determine whether it is in a state of fatigue, and promptly remind the sleepy driver to avoid the danger. When the highly sensitive steering angle sensor captures a dangerous behavior such as a driver's sluggishness or starting to become drowsy, the system emits a loud alarm and displays the words "Attention Assistance System: Parking" on the dashboard. .
Reverse anti-collision system
![[Chezhihui] Unmanned driving: mainstream active safety system technology](http://i.bosscdn.com/blog/10/53/5W/Y0-2.jpg)
Similar to the automatic braking system, the reverse collision avoidance system is also an active safety technology that many novice drivers need. For a novice or female driver, when reversing, the obstacles behind the rear are often neglected due to insufficient attention or lack of experience, and accidents such as scraping occur. When the vehicle of the reverse collision avoidance system is reversing, if a car passes by just behind it, the vehicle will stop immediately, if there is a pedestrian. Under normal circumstances, the system will first sound an alarm to alert the driver; if a collision hazard may occur, the intelligent brake assist system will actively implement emergency braking and directly stop the vehicle.
The representative model in this system is the Japanese luxury car manufacturer Infiniti. The owner will automatically start when the vehicle is engaged in the reverse gear. The sensor at the rear of the vehicle will continuously monitor the rear and rear side areas of the vehicle. When there are large objects in the rear. When the vehicle approaches and passes through the rear area of ​​the vehicle during reverse operation, the system not only has sound and image warnings, but also automatically stops the vehicle when necessary to avoid a rear collision accident when the vehicle is reversing. Infiniti's system combines sound, image alerting and driving intervention effectively. When the driver is unable to respond correctly, the system automatically takes braking measures to provide more comprehensive parking safety protection.
Adaptive lighting system
The adaptive lighting system automatically adjusts the steering angle side of the low beam according to the speed of the vehicle and the direction of the direction of the direction, and expands the effective illumination range when the vehicle turns. The automatic leveling function ensures that the light always shines in front of the ground, regardless of the load. This feature allows the vehicle to follow the road ahead as it enters the corner, rather than simply illuminating the edge of the road. Adaptive lighting systems help to alleviate nighttime driving fatigue and improve nighttime driving safety, especially when driving in unfamiliar continuous bends.
Another Japanese luxury car manufacturer, Lexus, has an adaptive lighting system that allows the driver to have a good view when cornering. The sensor will monitor the speed of the vehicle and the steering angle of the front wheels to estimate the position of the vehicle three seconds later, while the headlights shine here. The left and right headlights can be rotated to different degrees depending on the turning angle, one can be rotated by 5 degrees and the other can be rotated by 15 degrees.
Automatic parking
Parking is a nightmare for most drivers, especially novices or female drivers. Nowadays, the parking spaces in big cities are getting more and more tight, and the space reserved for drivers to get parking is becoming smaller and smaller. It is a necessary skill to drive cars into small spaces. The automatic parking technology can automatically pour the car into the garage through the sensors on the body with the help of the driver.
The automatic remote control parking system on BMW's new generation 7 Series takes the current automatic parking technology to the extreme. This system can automatically park the vehicle into the parking space without any driver control, even large. Multi-storey car park, the system can also perfectly execute the parking instruction. The parking system is also operated by a radar scanner installed on the vehicle, but in particular, the computer will comprehensively judge the scanned environmental data and the structure of the parking lot itself, making it easier for the vehicle to find the parking space and perform parking. task.
At the same time, the biggest highlight of this system is that the entire automatic parking system can be executed through the smart watch. With a simple setup, you can completely leave the parking task to the vehicle itself. The system is also quite intelligent, in addition to a very good understanding of the structure of the parking lot, and when the parking lot has emergencies, such as pedestrians, illegal vehicles, etc., can also cope with it. When the vehicle is stopped, the automatic parking system will automatically lock the vehicle. When the smart watch command is received again, it can also detect the distance between the owner and himself, and calculate when the owner will arrive at the parking lot to pick up the car, and then at the exact time, the last time the owner gets off the bus. Location, let the driver drive away directly.
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