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  Hydraulic Brake - Anti-lock-System 1



They are often confused, the active and passive security systems. The former should cause that it does not even come to an accident, the latter mitigate the consequences. The ABS system primarily prevents accidents but may also have some impact on the consequences of an accident. If, for example, although it can no longer prevent leaving the road, but a rollover of the vehicle.

Nevertheless, we stay with the active security. Here, too, one could divide the systems further into those which enable the driver to influence safety and those which assist him in the operation. It's important to know that an ABS system basically does not add anything to the brake system. It is therefore no further technical finesse to better braking.

On the contrary, if it is effective, it will take away more braking power rather than adding some. It smoothes out some undesirable effects of the braking system, it prevents blocking. Unbelievable ability assumed when braking that would be possible also without ABS system with ordinary brakes. Even the ability to maintain steerability through a little less braking power would have to be feasible.

Of course, all just theory. An electronic control makes this reliable at any time of day or night, impossible to replace in this precision and endurance by humans. On the contrary, the masses of motorists behave rather incorrectly during (emergency) braking, do not push the brake pedal with enough courage, so that the electronics even have to intervene here in order to achieve reasonable stopping distances.

But that would then already belong to the extended area of responsibilities. But it is well suited to modern security systems. They mostly bend straight, what man neglected. It could be said that the long-established safety features such as suspension, brakes, steering and tires perform their job excellently, only the driver in the complex reality of today's road needs help.

Normally man does not find the opportunity for forward-looking driving, which would be so important to avoid dangerous situations from the outset. And if he/she looks too far forward, the immediate environment is neglected. We would have to get more used to doing one thing and not leaving the other one.

Actually, the requirements go beyond anticipatory driving, namely towards ahead thinking. What's just unusual in the kid doing on the right sidewalk? Is there a risk that it suddenly turns around and crosses the street? Is it enough to just take the gas off, or should you also go into braking readiness?

No, you do not always have to think it through consciously. Once you get used to it, you do not even notice such thoughts. That's the biggest thing, safety that becomes second nature to you. For older people, this is perceived as part of experience. And if such a thing is not available to a sufficient degree, then the electronics has to do that. ABS always takes away braking power when it works.

Why is that? Because not the brakes are connected to the road, but the tires. And only rarely to ideal conditions. If these are not available, it can lead to significant deficits in the transmission of braking forces, not just in ice and snow. But how does such electronics notice that there is a lot of water on the street, for example?

No, the road condition scanner is not invented yet. So the first requirement that the electronics notice something is that the driver brakes. There are now systems, so-called 'assistants', that can do that for him/her, but they are not an issue here.

One of the first ABS systems . . .


Fortunately, there are only classic cars without ABS. So the first rule to get ABS working is to brake a bit too much rather than too little. The so-called stutter brake was yesterday, today that makes the electronics, ten times a second, if necessary. Try to do that once.

So full braking in case of danger, even on slippery ice and also, if at every acceleration the wheels are spinning. ABS is happy to discover one or more blocking wheels. That's the actual sensor technology of ABS. Now the system knows that the transmission of power to the road is disturbed, no matter what the impact was.

And it can be thought, here threatens not only a too long braking distance, but above all a no longer controllable driving or sliding vehicle. Please note, ABS is not a system primarily to improve the braking distance, but helps to revive the steerability. In extreme cases, the system even sacrifices braking distance to maintain it.

But then the driver must also have the courage to use the steering despite the brake fully applied, for example to avoid a sudden obstacle. There is just such an assistant for heavy trucks, who does it idiosyncratically. You can even give him the side of bypassing. That looks almost dangerous with such a large vehicle with semi-trailer.

What the truck can do, you can certainly do with your comparatively small vehicle with at most 5 to 6 percent of the total weight. Have courage, the electronics support you. Everything that is ramed rather laterally or not at all is an advantage.





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