The abbreviation TCS stands for Traction control system and stands for traction control system or traction control system. This system has more than 100 years of history, during which it was first used in a simplified form not only on cars, but also on steam locomotives and electric locomotives.
The deep interest of automakers in the TCS system appeared only in the second half of the 60s of the XX century, which was due to the advent of electronic technology. Opinions on the use of the Traction Control System are not unambiguous, but despite this, the technology has taken root and has been actively used by all leading automakers for about 20 years. So, what is TCS in a car, why is this system needed and why is it so widely used?
Electrohydraulic traction control TCS system included in the systems active safety vehicle and is responsible for preventing slippage of the drive wheels on wet and other surfaces with reduced grip. Its task is to stabilize, level the course and improve traction in automatic mode on all roads regardless of speed.
Wheel slippage occurs not only on wet and frozen pavement, but also when hard braking, starting from a place, dynamic acceleration, cornering, driving on sections of road with different grip characteristics. In any of these cases, the traction control system will react accordingly and prevent the occurrence of an emergency.
The effectiveness of the Traction control system is evidenced by the fact that after its testing on high-speed Ferrari cars, it was adopted by Formula 1 teams and is now very widely used in motorsport.
How TCS works
TCS is not a fundamentally new and independent introduction, but only complements and expands the capabilities of the notorious ABS - an anti-lock braking system that prevents the wheels from locking during braking. The traction control system successfully uses the same elements that ABS has at its disposal: sensors on the wheel hubs and a system control unit. Its main task is to prevent the loss of traction of the drive wheels with the road with the support of hydraulics and electronics that control the braking system and the engine.
The working process of the TCS system is as follows:
- The control unit constantly analyzes the speed of rotation and the degree of acceleration of the driving and driven wheels and compares them. Sharp acceleration one of the drive wheels is regarded by the system processor as a loss of traction. In response, it acts on the braking mechanism of this wheel and performs its forced braking in automatic mode, which the driver only states.
- In addition, TCS also affects the engine. After receiving a signal about a change in wheel speed from the sensors to the ABS control unit, it sends data to the computer, which gives commands to other systems that force the engine to reduce pulling force. Engine power is reduced due to a delay in ignition, cessation of sparking or a decrease in the supply of fuel in some cylinder, and in addition, the throttle may be covered.
- The latest traction control systems can also affect the operation of the transmission differential.
The capabilities of TCS systems are determined by the complexity of their design, on the basis of which they make adjustments to the operation of only one of the vehicle's systems or several. With multilateral participation, the traction control system can use various mechanisms to influence the traffic situation, including for this the most suitable system in given conditions.
Opinions and facts about TCS
Although many experienced drivers note that the anti-slip mechanism somewhat reduces the performance of the car, for an inexperienced motorist Traction control system - indispensable assistant, especially when control over traffic situation, for example during bad weather, is lost.
If desired, TCS is disabled with a special button, but before that it is worth once again recalling the list of those advantages that become unavailable when disabled:
- ease of launch and good overall handling;
- high safety when cornering;
- drift prevention;
- reducing risks when driving on ice, snow and wet asphalt;
- slowing down tire wear.
The use of an anti-slip system also brings some economic benefits, since it reduces fuel consumption by 3-5% and increases engine life.
It often happens that the rear trailer begins to live its own life. On the descent, the trailer starts to chatter, it jerks back and forth, and the situation cannot be rectified even with the use of the brakes. The driver barely copes with the situation, visibly nervous, and sometimes just starts to panic.
Technology TSA This is a real savior angel. Trailer stabilization system ( Trailer Stability Assist) prevents involuntary movements of the trailer, which tends to roll back and forth, and ensures the stable behavior of the tandem car and trailer on the road.
The system constantly monitors the movement of the trailer and, if the trailer begins to behave unsteadily, one or more wheels of the vehicle are braked. If this is not enough, the braking force is applied to all four wheels and the engine speed is reduced until the trailer's behavior stabilizes.
“Trailer sway is a real nightmare for drivers who frequently tow a trailer. Problems of this kind arise if the load is not properly distributed on the trailer platform: either the even distribution of the load in the front and rear parts trailer,” explains Per Ola Fuksin, development manager dynamic systems Volvo cars Cars.
Sometimes in the event of a trailer swaying, it is very difficult to rectify the situation. The trailer can even go to another lane of the road and roll over.
Unfortunately, such situations often lead to clashes with very serious consequences. Such collisions most often occur during the holidays, when on the roads you can see many cars with different trailers - from the simplest to trailers with yachts.
“It is extremely difficult for the driver to restore the stable behavior of a trailer that has begun to roll. As a rule, the brake is applied first. The TSA brakes the wheels individually, preventing negative tendencies in trailer movement. This is more efficient than braking all wheels at the same time. There is another advantage of this system - it comes into play much earlier, preventing the development of an undesirable situation where the trailer can completely get out of control. Moreover, the TSA system starts working when the driver does not even have time to feel that something is happening with the trailer,” added Per Ola Fuksin.
The trailer stabilization system is activated at speeds above 50 km/h. This system is fitted as standard on the Volvo XC60 if the vehicle is supplied with a towing device.
By · Posted May 28
Every Thursday! Stop near Michurinsky 6k3, from 19-00 until the last Jeep! We will be glad to all the gathered teammates! We always have a pleasant company, a cozy atmosphere, interesting conversations about Jeep... and more! ...and on this day, you can stick an anniversary club sticker for free. There are very few of them left Welcome (but not mandatory) soft and hot drinks, tea, coffee, pizza, sandwiches, shish kebab (barbecue, coal, meat, ignition, kupaty ...) ... Point on the map http://maps. http://maps.yandex.ru/-/CRdEZ4j~ 37.530294) PS Participants of club meetings are assigned the status "verified", which expands the user's rights on the forum. Remind me of the fact of your participation in this topic.
Novel! Got a little background. I have such a test filter: This is it in the light, in a clear sky. He managed to soak in gasoline, acetone, Würth's "brake cleaner" and Wins' nozzle cleaner. The test conditions assumed the dissolution of deposits chemical method, without mechanical impact, because, as this filter costs in full * opera and there is no way to get to it. The maximum is air purge. The window at the top left is the result of a brake cleaner and a direct "shoot" with air. Inside the tank, it will not work to direct the air stream. And without air, the dirt may dissolve, but it remains in place and cokes again. Today I put the filter into this ultrasonic bath: And filled it with this liquid: The temperature was set to 90 °, the time was 15 minutes. And the result exceeded all expectations: True, the rotten shmurdyak remains inside the box in the form of black flakes, it needs to be blown out / washed out of there, but this is fixable. So, whoever has access to an ultrasonic bath can save a lot of money on buying a new tank.
By · Posted Wednesday at 02:41 AM
Hi all. I decided to describe a small rogue life hack regarding the rear silent front gear, maybe it will come in handy for someone ... About a year and a half ago, almost immediately after buying a jeep, a tattered rear silent of the front gearbox was discovered, the rubber came off the outer clip in the upper part, the gearbox shank went down and sometimes began to touch the protection with a nasty sound. At that time, the cost of the car was more than dofiga, so the heroic decision was made to "install a temporary one"))) Let's jack the gearbox a little, a gap appears in the silent between the rubber and the outer clip. We smear this gap with rubber glue for shoes. We cut off a piece of conveyor belt 4-5 mm thick, smear it with the same glue, wait 10-15 minutes, put the rubber into the slot, lower the gearbox. Rubber on glue flies there with a bang if anything)) In short, we made such a temporary hut, and completely forgot about it. A year and a half has passed, some clicks have recently begun when starting off, sometimes when braking ... They climbed all the suspension, everything is normal. Mentally prepared to replace the front driveshaft, ugh 3 times. And then they removed the second sheet of protection, and it turned out that a piece of transp.tape got out of the silent and calmly lies just on top (I don’t understand how it stayed there at all). Silent estessno complete kapets. They took a longer piece of transp.tape and again loaded it with glue, supposedly a temporary one, until a new silent arrives)))) I ordered a mopar, the price is certainly impressive as usual. Moral: such a temporary house works fine for at least a year. And this is considering that I drive not only around the city. This winter I skated 2 four-day tours of Lake Baikal with the Japanese. Those who have been to Olkhon or traveled along the ice hummocks of Lake Baikal understand what roads are there, in the sense that they are not there, I even had to unfasten my lip, even though there was an elevator 2")) Pis and sorry for the many letters.
-
Electronic owner's manual in the car
Instrument and controls (6)
-
On-board computer - explanatory information
On-board computer the vehicle can register, process and present information while driving. Here is information that explains the operation of some functions.
-
Rear view mirrors - exterior
The outside rearview mirrors are adjusted using the adjustment lever in the driver's door controls.
-
Cleaners and washers
The wiper and washer clean the windshield and rear glass. The headlights are cleaned by high pressure washing.
-
Front seats - electrically operated
The vehicle's front seats are adjustable to provide optimum comfort. Seats with electric drive can move forward/backward and up/down. The front edge of the seat cushion can be raised and lowered. The seatback tilt can be changed.
-
Light regulators
The dimmer switch allows you to turn on and adjust outdoor lighting. It is also used to adjust the backlight of the display, dashboard and interior lighting.
-
Backseat
Back rear seat and the outer head restraints can be folded. The headrest of the middle seat can be adjusted depending on the height of the passenger.
Climate (1)
-
Deicing and deicing the windshield
Windshield electrically heated* and max. heating is used to quickly remove fogging and icing from the windshield and side windows.
Locks and alarms (1)
-
PCC* - unique features
Compared to remote key without PCC remote key with PCC has an extended set of functions connected to the information button and indicator lamps.
Starting the engine and driving (3)
-
Parking brake
Parking brake holds the vehicle in place when the driver's seat is empty by mechanically locking/locking two wheels.
-
Engine start
Engine starts and stops with key remote control and START/STOP ENGINE buttons.
-
Engine shutdown
The engine is switched off by the START/STOP ENGINE button.
Sound and media (5)
-
Bluetooth® - hands-free mode
Mobile phone with Bluetooth®, you can connect to your car wirelessly.
-
Registering a Bluetooth® module
Two can be connected at the same time bluetooth module®: You can switch between one phone and one media device. You can also make calls from your phone while streaming audio files. You can connect your car to the Internet using your mobile phone's Internet connection.
-
Sound and media - system management
The audio / media system is controlled from the center console and partly using the buttons on the steering wheel, voice commands or with remote control*. Information is displayed on the screen at the top of the center console.
-
External audio source via AUX-/USB port*
You can connect to an audio system external source sound, such as an iPod® or mp3 player
-
Radio
You can listen to broadcasts in the radio frequency bands of the AMV60 plug-in hybrid and FM and in some cases also digital radio (DAB)*. In a car with an internet connection, you can listen to web radio, Apps.
In this article, we will try to understand the principle of operation of the brake systems of a car - ABS, ESP and TSC.
How do ABS, ESP and TSC work?
The first systems to prevent the wheels from locking up and allow the driver to steer the car with too much pressure on the brake pedal appeared more than thirty years ago. These anti-lock braking systems became known as ABS.ABS consists of wheel speed sensors, modulator brake pressure And electronic block management. The task of the sensors is to record the beginning of the wheel lock. As soon as this happens, the signal is transmitted to the control unit, which gives a command to the modulator, which lowers the fluid pressure in the hydraulic brake system. When the wheel is unlocked and starts spinning again, the fluid pressure returns to its original value and again forces brake mechanisms work.
The processes of braking and releasing the wheels will be repeated cyclically until the threat of blocking disappears. The driver feels ABS work shocks transmitted to the brake pedal.
The wheels can also break into slip at the moment of the start of movement, during acceleration, in cases of vigorous movement in areas with coatings of different adhesion properties. The desire to get rid of these shortcomings led to the appearance.
When the drive wheels begin to spin faster than the driven wheels roll, this is perceived by the processor as slipping. Further, two options are possible. The first is that the electronics will "strangle" the engine, not paying attention to how actively the driver presses the gas pedal; the second - the driving wheels are slowed down until they stop slipping and catch the tread on the coating. However, both scenarios usually "work".
What is remarkable about TCS is the ability of the system, which is a "makeweight" to ABS, to independently control the engine and brakes of individual wheels. The designers were able to approach the development of another electronic assistant- programs electronic stabilization ESP (Electronic Stability Program). In addition, the possibility electronic control traction and brakes were used to simulate a differential lock.
What are the disadvantages of ABS? This system, by regulating the pressure brake fluid, protect the wheels from blocking and provide the driver with the ability to drive the car even with his panic actions. But he must get out of a critical situation himself, relying on his own skill and composure. And if that's not enough?
Example: the car enters a turn too far high speed, and depending on the direction of rotation, it is blown either into a ditch or onto oncoming lane. The driver in response sharply slows down and additionally turns the steering wheel in the direction of drift, wanting to stay on a safe trajectory. As a result - demolition or skidding, although ABS did not allow the wheels to slip.
If the car was equipped with ESP, this would not happen. ESP will reduce the fuel supply so that the engine power and its speed, and with it the speed of the car, meet the requirements of a particular situation. But the main thing is that ESP will select the braking forces for each wheel separately, and in such a way that the resulting braking forces counteract the moment tending to turn the car around and keep it on the path.
If a skid begins when entering a turn rear axle, ESP will provide braking of the external front wheel. Due to this, a stabilizing moment will arise, returning the car to a safe trajectory of movement. If the car is understeered, causing it to slip out of the corner due to front wheel drift, ESP will brake the rear inner wheel, helping the driver maintain control of the car.
For ESP to work, it was necessary to add yaw, lateral acceleration and steering wheel position sensors to the existing wheel sensors and expand software processor. As a result, ESP not only controls the speed of rotation of each of the wheels and the pressure in brake system, as ABS does, but also monitors the steering wheel, lateral acceleration of the car, its angular velocity and controls the operating modes of the engine and transmission.
