JAKARTA - safety devices are divided into two, namely active and passive. Active safety devices which are governed by the electronic device / computer. Can also called Vehicle Restraint System (VRS), which is the component that has already happened and the car standard equipment.
The second medium is a security device that is not regulated by using a computer / electronics. Known also by the term Supplementary Restraint System (SRS). That is an additional device that helps improve safety while driving. Such as ABS, EBD, BA and others.
"It's getting so widely used and standard equipment. Particularly in the premium class cars, "said Iwan Abdurrahman, head of technical section Dept. PT Toyota Astra Motor in Sunter, Jakut.
AirbagIts function is to withstand collisions that could cause injury to the rider. Will erupt in 0.1 seconds during an impact. "The speed of eruptions about 200-300 km / hour," said Iwan.
Usually mounted on the steering wheel and front passenger dashboard next to the driver. In luxury cars is also under the dashboard for holding the knee. Then there are also side airbags, curtain door usually is on the left-right and near the shoulders of the passenger side seat.
The trigger a sensor mounted on the front, rear and side car. The sensor would receive as a result of vibration impact and report to the ECU (electronic control unit).
Furthermore, airbag ECU ordered to explode. "The magnitude of impact depends on the speed of the car. Usually if it hit the stationary car, at a speed of 30 km / h airbag can be triggered to explode. "
But not all the air bags exploded, according to which part sensor impact. "It means if that hit the front means front airbags that inflate only. Who's who on the side and rear are not. "
If you've explode like baseball would have to be replaced just to be able to work perfectly as before. It costs around Rp 20 million to the front only. But still cheaper than our lives right?
ABSAntilock braking system (ABS) came in vehicle braking systems. As the name implies this device prevents the brake pedal lock when pressed deeply. In order tire traction to the road surface remain there and not skid. So the wheel can still be directed to prevent accidents.
"So, baseball needs to be shaken again rich life without ABS brakes, let the system is working," said Wijaya Kusuma, president director of ORD Safety Training in Tebet, South Jakarta.
In the normal brake system, if suddenly stepped on the pedal, the tires will lock. As a result the surface of the tire will slip and cause the car slid out of control. Although the wheel rotated to the left and right tire will remain nyosor forward.
Unlike when using ABS. When an emergency the driver only needs to tread deep into the brake pedal. Its effects will be felt vibrating pedal. That's due to the flow of brake fluid which opened close by ABS devices.
Because the lid is opened, the effect is also brake clamp and remove the disc. All this happened within a very fast. "Ban also did not skid and the direction of the vehicle can still be controlled."
So do not be regarded as ABS brake pedal is pressed and vibrate considered damage. That is evidence that the ABS system works. "It does not vibrate when the pedal is suspect there is damage," said Iwan.
EBDElectronic Brakeforce Distribution (EBD) are also still included in the braking system. In general, join with ABS. Serves to regulate the flow of brake fluid as pressure on the spinning wheel. Can be rear or front left and right.
For example, when the car is running and the brake pedal is pressed, the weight of the car 70% of it will move forward. Of course working front brake should be louder than the rear. "Now to set the front brakes work distribution more optimally use this device," said Momon S. Maderoni boss Indonesia SmartDrive Consulting in Utan Kayu, East Jakarta.
Not only the weight of front and back, but either side can too. For example, if the left side of the road on slippery surfaces is not right, when braking brakes work computer will adjust as needed. Or for example when turning right, the left tire would spin more than the right.
"The tires would spin more stronger braking, so the car will remain stable," added Iwan.
BASStands for Brake Assist System. Usually these devices are joined together with ABS. Serves to increase the pressure of the brake pedal during emergency situations. For example in one's state of emergency because of panic hit the brake pedal suddenly. But the thrust made less hard or deep. Whereas ABS system grind strong need to work optimally.
"Well by BAS sent a command to increase the pressure for the ABS works perfectly," said Iwan again.
BAS sensor reading from the time the brake pedal is pressed. For example, if in a normal state of the brake pedal started to push up to the ABS works take 4 seconds. But because someone pressed the pedal with the emergency very quickly, only 0.5 seconds. From there the BAS sensor will consider the conditions in dangerous condition and need more pedal pressure. (Mobil.otomotifnet.com)
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