Eu-vollsun eu-vollsun eu-vollsun Professionalمنذ 6 أشهر - Multimedia - Saïda - 85 الآراء
Another useful equippment is a shock absorber. When a car hits a bump in the road, the impact shoves the wheel up. In a rigid car with no suspension system to speak of, this means the force of the impact transmits directly to the driver, which can be extremely jarring. Not only that, the impact can also cause a bouncing motion in which the tires lose contact with the road, meaning less control for the driver.
Enter the shock absorber, otherwise known as a damper. Actually, the name "shock absorber" is a misnomer, because these devices do not actually absorb shocks. Instead, it's the springs that do this. As the wheels move upward after hitting a bump the springs compress, effectively absorbing the shock of the bump. But as the springs compress, they store potential energy that must be released, or else, it will bounce back and push the vehicle's body further upward than what the bump could cause in the first place.
The shock absorbers work to slow down and reduce the magnitude of the bouncing motion by converting the kinetic energy into heat energy that can be dissipated through the hydraulic fluid contained in the absorber assembly. This conversion of energy keeps the vehicle's body from bouncing excessively, providing a more stable ride and helping keep the tires in contact with the road.
There are another unique design which is called ABS sensor in the car. An ABS (Anti-lock Braking System) is an enhanced braking system which is commonly found in newer automobiles. An anti-lock brake sensor or ABS sensor is a type of tachometer that measures the rotational speed of a wheel and passes it to the car's Engine Control Module (ECM). The ABS sensor is also called the wheel speed sensor or ABS brake sensor. Since all the wheels do not turn at the same speed, the ABS sensors report the speeds of all the four wheels to the ECM, based on which the ECM determines if the wheels are locking up. The application of the ABS brake is quicker than manual brakes. Due to this, when the ABS is engaged, it emits a grinding noise in some automobiles.
Older configurations of ABS had the sensors located outside the wheel hub in parts such as the steering knuckle and differential housing. The ABS sensor is coupled with a ring gear. The ring is mounted on components such as the brake rotor and brake drum. The ABS sensors in newer systems are fitted in the wheel hub assembly itself. Depending on the type of braking system, vehicles may have as few as one or up to four ABS sensors.
The ABS sensor usually consists of a toothed ring and a magnet enclosed within a coil. The contact between the ring and the magnet induces an electric field due to which a signal is generated. This signal is then transformed into a digital signal and sent to the ABS controller. The controller then determines the speed of each wheel accordingly.