"Safety has always been an important indicator for vehicle owners to evaluate their vehicles. Vehicle safety can be categorized from both active and passive safety. Today, we will talk about the active safety system of the car.
What is active safety system?
Active safety refers to the safety system measures to maneuver and control the car as freely as possible. Both braking and accelerating in a straight line and steering left and right should be as smooth as possible without deviating from the established line of travel and without compromising the driver's vision and comfort.
Active safety systems and classifications as well as the various manufacturers called slightly different, roughly divided into the following seven systems: ABS, ASR, EBD, ESC, LCA, TCS, VSA.
ABS
ABS stands for Anti-Lock Braking System, and is the most basic of the many active safety systems that have been popularized in most models on the market today.
When it comes to emergency braking, car safety often requires the car to stop immediately, but strong braking is prone to wheel locking - front wheel locking causes the car to lose steering ability, and rear wheel locking is prone to rear-end accidents. The installation of ABS is to solve the problem of wheel locking when braking, so as to improve the stability of the car when braking and the braking performance of the car under poor road conditions.
ASR
ASR, its full name is Acceleration Slip Regulation, that is, traction control system or drive anti-skid system, its purpose is to prevent the vehicle, especially high-powered cars, in the start, acceleration, drive wheel slip phenomenon, in order to maintain the stability of the vehicle driving direction.
EBD
EBD, the English full name is Electronic Brakeforce Distribution (Electronic Brakeforce Distribution), ABS must be stepped on the brakes to the wheels hold only when the role of the EBD can be stepped on the brake pedal, before the role of the ABS by adjusting the rear wheel braking force to achieve a good braking effect, in order to reduce the unnecessary action of the ABS or the ABS in the event of a special failure state of the ABS to prevent the vehicle from slipping. EBD uses a high-speed computer to sense and calculate the different surfaces to which the four tires are attached, braking in different ways and with different forces according to different conditions and constantly adjusting to ensure the smoothness and safety of the vehicle.
ESC
ESC is Electronic Stability Control (Electronic Stability Program control system), ESC is available in many brands, only that each manufacturer has a different method of delivery, for example, Volkswagen is called ESP, Honda is called VSA, and Toyota is called VSC. To give you a simple example, for example, if you want to quickly steer to the left, and the result is understeer, then ESC will brake the left rear wheel, allowing the vehicle to change according to your expectations. , allowing the vehicle to change direction as you expect. If you are oversteering, the ESC will brake the right front wheel, allowing your car to correct its position.
LCA
LCA is known as lane change assist. Because the C-pillar of the car has a blind spot in the field of vision, it is easy to create danger when we change lanes. LCA uses 24Ghz radar sensors to detect vehicles approaching from behind in the blind spot and alerts them through the indicator light next to the front rearview mirror.
TCS
TCS is Traction Control System, also known as Trace Control System. When a car brakes on a smooth surface, the wheels will slip and even lose control of the direction. Similarly, when the car starts or accelerates rapidly, the driving wheels may slip, and the direction will be out of control and dangerous on smooth roads such as ice and snow. With TCS installed, the computer will detect the excessive speed difference between the driving and non-driving wheels, and will limit the power output by reducing the fuel injection, and the vehicle will naturally speed up smoothly.
VAS
VSA (Vehicle Stability Assist) is a control system that improves vehicle stability and driving safety at the world's most advanced level. In addition to the traditional anti-lock braking (ABS) function and traction control (TCS) function, the system also has an anti-skid control (Skid Control) function.
When the vehicle is judged to be understeering or oversteering, the system calculates and generates torque in the opposite direction to suppress understeering or oversteering, ensuring the stability of the vehicle in various driving conditions such as straight ahead, steering, and braking. Especially in the case of emergency sudden steering, through the slippery road, etc., can maximize to ensure the safety of the vehicle driving.
These are the current mainstream seven major automotive active safety systems. Although the application of these technologies and systems for driving safety to bring better support, but only to practice their driving skills, to maintain good driving habits is the best guarantee of safe driving.
We wish you safe driving and keep accidents away from you.