2024 Author: Erin Ralphs | [email protected]. Last modified: 2024-02-19 11:42
Today, the world's leading manufacturers pay maximum attention to the safety of passengers in their cars. They supply their products with a large number of different devices that operate automatically. These systems make it possible to maintain the directional stability of the machine in different modes of movement, as well as to evenly distribute the brake force applied to each wheel.
Some information
Exactly one of these devices is the function known by the abbreviation ASR in the car. What is ASR, why is it needed, what benefits does it bring and how exactly does it work - you can find answers to all these questions in the proposed article.
Should I pay attention to the presence of this function when choosing a machine? Have you experienced this device? Finding out what ASR is in a car and what features it has will be useful to every car owner and a simple amateur. From this material you can get answers to all your questions.
ASR system in a car: what is it?
In a literal translation from German, thisthe abbreviation stands for "slip control". What is ASR? In a car, this is the name given to the electro-hydraulic system, which is designed to prevent sudden loss of traction on coated wheels.
The ASR function was first used in 1979 on BMW cars. Today, this system is used by all leading manufacturers of equipment. True, not all car owners know exactly what ASR is in a car. And this is not surprising, because many companies call this device differently. For example, in Toyota cars, a similar function is designated TRC, in Opel cars a different name is used - DSA, in Honda - TSC, in Range Rover - ETC, in Volvo - STC.
At its core, ASR is an improved version of the well-known ABS system. It not only repeats all its capabilities, but in addition to everything, it allows the drive axles to slip during active acceleration and the beginning of movement. In other words, the ASR function in the car at the moment of braking is necessary to prevent the brakes from blocking, and during the period of movement it acts as an anti-slip system.
How does it work?
ASR system prevents wheel spin in several ways:
- their slowdown;
- reducing the torque of the power apparatus;
- combination of these methods.
If the car moves at a speed of no more than 80 km / h, then ASR, when detecting a faster one, compared tothe rest, one wheel slows it down through the brakes. If the car moves more intensively, then deceleration is carried out due to a decrease in the transmitted torque to the axle. The combination of these methods is considered the most effective and is used if the car moves too fast.
A special unit is responsible for the operation of the ASR button in the car. It receives signals from a large number of sensors that monitor the most significant characteristics of the unit. This information is processed by the software, due to which decrees are generated that are transmitted in real time to the performing devices.
How does ASR work?
In addition to the main control unit, a variety of sensors and modulators, which are also considered the main elements of the anti-lock braking system, ASR includes:
- solenoid valves;
- return pump;
- decree creation module for the motor control unit.
The second element is needed to form the auxiliary pressure in the brakes. It is noteworthy that when the pump is turned on, it takes over the functions of the main brake cylinder. Solenoid valves regulate the connection of this component, and when a certain moment comes, they relieve the pressure that has become excessive.
In the arrangement of modern ASRs, there is a function of informing about the start of the system: at the moment it is turned on in the car, a special indicator lights up on the instrument panelbulb. It is noteworthy that drivers can control the system built into the vehicle. To do this, use the special buttons in the car: "ASR off" and "ASR on". True, experts advise to refrain from manual control of the system, since it actually guarantees increased safety and its use in cars is of great benefit.
ASR Benefits
First of all, it is worth saying that the traction control system makes it possible to prevent skidding in turns when moving on ice and wet roads. If it is not possible to completely avoid them, ASR significantly reduces their degree, due to which the risk of an accident is significantly reduced.
Drivers equipped with this system feel much more confident when driving on wet and icy roads. Cars equipped with ASR show better handling, which is quite logical: their wheels have excellent grip. It is thanks to this property that vehicles with this function perform all maneuvers in the normal mode.
An important advantage of ASR is that this device allows you to save fuel by reducing its consumption while reducing the torque of the power unit. In addition, for a similar reason, the traction control system helps to increase the life of the motor.
Conclusion
ASR is a traction control system that helpsprevent many emergencies at the time of maneuvering and moving on slippery surfaces. This feature makes driving more convenient and safer. ASR has many benefits that add more confidence to the driver.
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