Heavy truck brakes are a great danger
Case 1: On January 28, 2011, when the Qingyin Expressway was on a long downhill section, a truck brake did not lead to a car collision in a timely manner, and the shortcomings of the truck with poor braking capability were particularly prominent.
Case 2: On February 14, 2011, during the continuous downhill slope of Beijing-Tibet Highway, a coal truck was braked by continuous use of brake pads, causing the brake pads to overheat and causing the tires to catch fire.
The above two cases reflect that the problems caused by heavy truck brakes have seriously affected vehicle safety. To solve this problem, installing heavy truck brake retarders is a very effective means. The retarder can effectively reduce the braking distance and braking time. To ensure safer driving of the vehicle. The installation of brake retarders on trucks abroad has become a rigid requirement, and in China, the installation of retarders on trucks is still in its infancy. The phenomenon of overloading and overloading of domestic trucks is widespread. The safety problems caused by braking have become more prominent. It is even more important in China to install retarders to reduce the risk of driving. As a representative of the retarder - Tellabs Mary are domestic users to promote safe for the majority of truck brake concept.
Retarder solves problems for heavy truck brakes
The retarder is divided into an eddy current retarder and a hydraulic retarder. Tyler is a representative of an eddy current retarder. How can it effectively solve the problems caused by the heavy truck brake?
The eddy current retarder is mainly composed of a stator and a rotor. The working principle is that the rotor rotates along with the drive shaft. When it is required to work, the coil in the stator is energized to form an alternately changing strong magnetic field. The rotor cuts the magnetic force lines to form an eddy current and forms the braking force opposite to the rotating direction on the rotor. That is to say, the kinetic energy of the car is converted into a device in which the heat energy is dissipated to achieve deceleration and braking.
Tellomar's advantages:
Reduce braking distance and shorten braking time
In case one, because the vehicle cannot achieve braking effect in a short time during the downhill process, the braking distance is long and the accident is caused. Thamma Technology Manager Wang Xiaobin told the China Truck Network reporter that when encountering a downhill road, the Taylor Malo retarder brake response is very fast and takes only 0.02 seconds. For the output speed point, the maximum torque is 30km/h, and the effective speed is 10km/h. As long as the vehicle speed reaches 10km/h, the retarder can exert more than 85% braking effect. Therefore, in the long downhill road, Tellomar retarder can quickly produce braking effect, reduce the braking distance and shorten the braking time, which can effectively protect truck and personnel safety.
In addition, in EU countries, data studies have shown that when a 15-ton truck is traveling at a speed of 105 km/h, the average stopping distance is 73 meters when the emergency brake is not used, and the braking line is curved. It shows that the vehicle's running state during braking is very unstable and hastily and abruptly; and the vehicle using the Tellomar retarder can be stopped smoothly and progressively. The average parking distance is 52 meters and the brake line is linear.
Bear more than 85% of braking energy to eliminate high brake pad temperature
In case two, during the continuous downslope of the Beijing-Tibet Highway, the trucks continuously used brake pads to cause overheating, which caused the tires to catch fire and caused accidents. Multiple ramps and multiple downhill road conditions covered a wide area in China. If a retarder is installed on the truck, this accident can be effectively avoided. “Teloma retarder can eliminate the accidental tire blowout caused by high hub temperature and bear more than 85% of braking energy, avoiding the main brake to decline. Or failure, which will avoid the continuous brake when the downgrade caused by overheating tire temperature." Wang Xiaobin said. Tellomar retarder can not only eliminate the accident caused by brake overheating, but also save the cost of replacing brake pads. According to statistics, Tellomar retarder can make life of brake pads reach 700,000-800,000 kilometers. The cost of brake pads, wheels and tires is reduced by nearly 5,000 yuan annually.
In addition, the rotor low drag resistance design of the Taylor Mali retarder can ensure that the rotor has no remanent magnetism and no drag brake phenomenon, which can effectively reduce the additional fuel consumption, saving more than 4,000 yuan per year; and already has a hundred years of history The reliability is very high, the maintenance rate is only 5/10000, and its service life is longer than the service life of the vehicle. In short, after installing the Tellomar retarder, the comprehensive calculation of the cost of additional fuel consumption, brake pads, wheels, tires, maintenance, etc., is expected to save nearly 10,000 yuan per year, significantly reducing the overall operating costs of the vehicle.
Since domestic truck users have little knowledge of retarders, they have difficulty accepting retarder prices and they do not have a correct understanding of the important role of retarders, so that the pace of promotion of retarders in China is slow, but there is also good news. 2010 "Motor Vehicle Operation Safety Technical Conditions" GB7258 regulations to add new content, that is, more than 12 tons of trucks and dangerous goods transport vehicles will be forced to install retarder, and has been initially formed, the new contents of the regulations allow the retarder to install The agenda, which also allows Temal who has been committed to promoting the safety brake of the retarder, is confident.
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