A complete analysis of the six major automotive safety technologies

Today's car safety issues are no longer as simple as adding a bumper to "rest assured" as before. Safety technologies that can predict danger before it strikes are increasingly being used in today's cars.

　　Tire pressure monitoring

　　Avoid high-speed tire blowouts

　　The use of tires directly affects the safety of the car. In the worst case, it will cause a tire blowout, and in the worst case, it will cause the vehicle to lose control and cause a major traffic accident. A tire pressure warning system is very important. At present, some BMW models have provided tire pressure monitoring and warning system equipment. Sensors are loaded on the wheels. Once there is a problem with the tire pressure, it can remind you, give a sound warning, and the corresponding safety indicator light will appear on the dashboard.

　　Smart Cruise

　　Automatic braking

　　In the future, cruise control systems will not only be limited to maintaining a constant speed. Due to the use of sensors and radar, cruise control systems can adjust the throttle and brakes to prevent the vehicle in front of you from approaching and maintain a safe distance. If there is a speed change, or a dangerous situation of a few centimeters will occur, the system will usually brake suddenly and lock the seat belt when it detects a potential collision. Once the safety hazard is eliminated, it will send a command to return your car to the original cruising speed, and it will not be controlled by humans during this period. Of course, you can also manually control the brake system. At present, Mercedes-Benz and Maybach (Photo Gallery Forum) systems have already tried this.

　　Blind spot detection

　　The driver's "sixth sense"

　　The purpose of this technology is to remind you to control blind spots while driving. Visual "blind spots" caused by the design of A-pillars, B-pillars, etc. can easily lead to traffic accidents. If the owner can "keep an eye on all directions" while driving, the traffic accident rate can be effectively reduced. For example, General Motors demonstrated a batch of cars with "sixth sense" last year. Equipped with simple antennas, computer chips, global positioning system technology and other in-vehicle communication equipment, the car can keenly perceive the location of other vehicles within 400 meters. Usually its reaction will be that when you are driving, if it detects the direction, it may flash the signal light in front of your eyes, or the seat or steering wheel will vibrate to sound an alarm. This is a short-distance detection technology.

　　Electronic stabilization

　　Controlling the human body's collision posture

　　The Electronic Stability Program (ESP) is an active safety system that can identify unstable driving conditions of a car at an early stage and automatically correct them. When the car is driving on the road, the system predicts that the car body will deviate, and can monitor the human body posture, head and eyes. Through the reasonable design of seats and headrests, it can alleviate the instantaneous impact on the occupant's head during a collision. At the same time, the system issues a command to slow down the car so that the car enters a stable state, just in case.

　　Rollover protection

　　Stabilize the car before it rolls over

　　If the system detects a potential transition in a turn (for example, if you turn too fast or suddenly in a corner), the system will control the brakes and throttle to adjust according to the situation to help you control the car. DaimlerChrysler calls it an electronic rollover system, and Ford calls it a rollover stability system. Volvo also has its own rollover protection system. The casualties caused by car rollovers are very high, so the existence of a car rollover protection system is critical, especially for SUVs and convertibles. For example, the Volvo C70 convertible has a side rollover protection system specifically developed to ensure the safety of the occupants.

　　Smart airbag

　　Avoid pop-up injuries

　　Since everyone's physical signs are different, it will become the mainstream to manufacture airbags that can be changed at any time according to the current situation. With low risk in the form of passive compensation, the important parts of the driver and passengers will not be harmed. Smart airbag technology can sense people of different sizes and weights and the use of seat belts. When the seat position is abnormal or there is a problem with the back-facing child seat, the smart airbag will pop out. With the development of technology, airbags are becoming more and more "smart". For example, some high-end models of Mercedes-Benz are equipped with staged airbags, which pop out in stages according to the intensity of the impact to prevent passengers from being injured due to excessive force of the airbag popping out.