1. Active Brake / City Safety
Active Brake
refers to the active braking function when the vehicle is in a non-adaptive cruise under normal driving, such as the vehicle itself can actively generate a braking effect so that a dangerous situation encountered sudden deceleration of the vehicle (vehicle provided with such a function, but does not necessarily stop the vehicle completely brakes) a technique to improve the traffic safety of . But now various car manufacturers are not uniform nomenclature of this technology, such as Toyota’s Pre-Crash Safety system called Pre-Collision System, referred to as PCS; Honda’s CMBS (Collision Mitigation Brake System) and Mercedes-Benz pre-safe system, etc. .
City Safety system
City Safety system (City Safety) was introduced by Volvo Cars crash technology, City Safety as a new active safety technology it can help drivers avoid rear-end collisions at low speed common in urban traffic. Volvo Car Corporation estimates half of this technology can avoid rear-end collisions, can maximize avoid losses.
works
With statistics show that 75 percent of rear-end accident occurred at about 30km / h speed, and Volvo of this “city safety” system, it is these incidents nemesis: when the vehicle speed reaches 30km / h, the system will automatically start monitoring traffic through the lidar system on the front windshield, especially in the case of 6 meters before the front. The current car brakes, stop, or when there are other obstacles, the system will first automatically force on the brake system to help the driver make the moveShorten the braking distance as before; or it can adjust the steering wheel to change the travel path of the vehicle to avoid the obstacle. Of course, if the distance is already very close to the obstacle, the system automatically without the need for an emergency brake operation by the driver.
According to Volvo said analysis and calculation speed of the system reaches 50 sec times, can accurately analyze accordance with aspects of distance and vehicle speed, the brakes need to be able to avoid accidents at what time. And the system can be used normally during the day and night, however, and some other radar devices, as in fog, rain and snow is going to be subject to certain restrictions.
Further Reading PCS Toyota Mercedes-Benz pre-safe Honda CMBS