1. The active safety features
active safety is to prevent the occurrence of a vehicle accident security configuration. In other words, his main role was before the accident, to avoid accidents. Such as a common ABS, EBD, ESP and so on. Therefore, active safety is more important than others.
antilock braking system (ABS)
ABS translated Chinese ldquo; anti-lock brake system rdquo; it is an advantage of having a non-slip, anti-lock automotive safety control systems and the like.
ABS principle is: the time of emergency braking, if all the four wheels lock braking system, the wheel will slide into the rolling, it easily occurs when the vehicle is skidding or deviation . Wheel ABS system will not be completely locked, while the second will be at a frequency of 60-120 times the vehicle ldquo; snub rdquo ;, so it can effectively control the wheel lock, the brake state of the automobile still steering, braking direction to ensure the stability of the vehicle, to prevent skidding and meandering.
Now, the ABS system has become the standard configuration of the car, there are few vehicles not equipped with ABS system.
braking force distribution system (EBD)
EBD English stands Electric Brakeforce Dis-tribution, Chinese interpreter is ldquo; electronic brake force distribution rdquo ;. The vehicle is braking, the onboard computer will be the case of the friction surface, applying different braking force to each wheel of each wheel according to the vehicle, thus ensuring the stability of the vehicle. Now EBD systems are generally integrated with the ABS system to a system existed, so we often see manufacturers publicity, said: vehicle is equipped with ABS + EBD system.
If the left wheels are in contactIs a slippery road surface, and the right side of the contact is a dry road surface, it is clear that the left and right wheels and the ground friction are different. If the braking force applied to the same four wheels during braking, can easily cause slippage, and the inclined roll phenomenon. And a vehicle equipped with EBD system does not happen, he would apply different left and right wheels to ensure stable braking force of the vehicle.
brake assist (BA / EBA / BAS)
a variety of different manufacturers brake assist system is called, is called the three major: BA, EBA , BAS.
Brake Assist system monitors the frequency and strength of the driver stepped on the brake pedal, the driver at the time of emergency assistance apply more brake force to the vehicle, thus shortening the braking distance to ensure the safety of vehicles.
Function traction control system (ASR / TCS)
traction control system when the vehicle is traveling on a smooth road surface, if the power output is too large, excessive rotation of the drive wheel fast, it will break through the limits of grip the road surface, thereby slipping. This traction control system will monitor the time to the drive wheel slip has been to reduce the power output, the tire is rotated back to a normal state, to ensure the running stability of the vehicle.
traction control systems of the various manufacturers are the same function, but different names only. For example: Mercedes-Benz called ASR, Toyota called the TRC, BMW called DTC, Cadillac called TCS and so on.
electronic stability control system (ESP / DSC)
electronic stability control system is actually upgraded traction control system version, only the traction control system to control the power output of the drive wheel, and electronic stability control systems will be on the four wheels are controlled. Electronic stability control system of the four wheels by the braking necessary to stabilize the vehicle body.
when the vehicle understeer, will the inner rear wheel brake, so that the vehicle returns the correct line up. (Corresponding to the inner rear wheel as the center, the auxiliary turning vehicle, understeering effect canceled)
when the vehicle over-steering, the outside front wheel brake will, So that the vehicle returns to the correct line up. (Corresponding to the outside front wheel as the center, to prevent the vehicle turns, the effect of canceling the oversteer)
Descent (the HDC)
The earliest Descent Land Rover is invented, perfected and then assembled on their own models number of car company, which is mainly assembled in the off-road vehicle.
The steep change how the system works is very simple, off-road vehicles at the time by many complex road downhill road, the driver must be careful while controlling the throttle, brakes and steering wheel, which for off-road experience is not rich the driver is very difficult to do. The Descent after opening, no driver controls the accelerator and brake, the vehicle will automatically 6-8km / h speed forward, the driver can only control the steering wheel. Descent is now generally configured in high-end off-road vehicles, such as Land Rover’s Range Rover, Mercedes GL, Audi Q7, Toyota Rand Road, Chak cool and so on.
automatic parking / uphill assist system
the role of automatic parking and hill assist system is actually the same, just a different name for it, the purpose of all in order to prevent the vehicle from rolling away in the uphill section.
For example, when Singapore played, when you release the brake pedal, this time the automatic parking system will work to brake the vehicle, the vehicle will not slip on. And when you press the accelerator pedal, the vehicle will automatically release the brake moving forward.
Active anti-roll system
Active anti-roll system is a lateral dynamic stability (vehicle stability) high active suspension control system, which can maximize eliminating the limit of the car body roll when cornering, ensure the car in a variety of speed has the best sensitivity, steering and balance of load changes, the application of this technology in the new BMW 7 Series.
CHMSL
CHMSL name suggests intended generally installed at the upper rear to the rear of the vehicle traveling ahead of the vehicle brakes is easy to find, play It aims to prevent rear-end accidents. Since the general car has two ends mounted on rear brake lights, either side, it is also called a third brake light brakeLights.