Studies have shown that failure of braking is an important cause of traffic accidents on trucks, and brakes on drums are prone to heat due to prolonged downhill braking, resulting in brake failure. Therefore, the long downhill section has also become a "dangerous road section" with high accidents. Even veteran drivers are at odds with such roads.
After numerous bloody lessons, in order to ease the failure of the brakes, even a new industry has been spawned - the construction of highway buffers. Buffers can be found in the country's famous long downhill, sharp bends, and frequent accident areas. Mr. Zhao, a truck driver with 10 years of driving experience, told reporters that he had drove through the highway from Shanxi Jincheng to Luoyang, Henan. "Several dozens of kilometers of downhill roads are built. There are cooling pools and deceleration belts along the way." Zhao said that if there are no such measures, large trucks, especially large trucks that are overloaded, can easily fall downhill because of continuous brakes that cause brake pads. Fire, tire smoke.
However, neither the buffer zone nor the cooling pool is the fundamental method to solve the problem. Although these external measures also have some effect, but from the safety performance of the vehicle itself, the installation of retarder can fundamentally solve the problem of brake failure. 80% of foreign heavy-duty trucks are equipped with retarders. In developed countries in the US and Europe, as early as the 1950s, large trucks with more than 8 tons were required to install retarders. Currently, retarders have become bus buses and tourism in many developed countries in Europe and America. Standard configuration for passenger cars, medium and heavy goods vehicles.
The retarder is an auxiliary braking system that can bear 30-80% of the braking energy required for deceleration of the vehicle. Without using the main brake, it can slow down the vehicle's travel speed. It is mainly used for high quality and high braking intensity. Heavy vehicles and special vehicles that require high safety and reliability. The installation of a retarder can make large trucks safer and more stable when decelerating and downhill, reducing wear and heat caused by the use of service brakes. Therefore, relevant laws and regulations in developed countries encourage even the mandatory installation of retarders.
Take the Taylor Mali retarder as an example. When encountering a downhill road, the Taylor Malo retarder brake response is very fast, requiring 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.
The most immediate benefit of the retarder is that it is easier to drive and there is no need to worry about overheating and failure of the brakes. In fact, in addition to safety, the retarder has more benefits, reduces frequent jogging and braking, improves the comfort and maneuvering flexibility of the vehicle, greatly reduces the driver's fatigue strength, and greatly wears the brakes and tires. Lowering, prolong the cycle of brake and tire repair and replacement, and extend the actual running time of the car. In addition, the average speed is high on downhill slopes and the economy of vehicle transportation is good. The resulting economic benefits are obvious. It is understood that Tellomar retarder can not only eliminate the accident caused by brake overheating, but also save the cost of replacing brake pads. After one year's monitoring data, Talemar found that the vehicle saves 1,600 yuan/year on brake pads and wheels, and the tires save 10,000 yuan/year.
Of course, any brake is not a panacea. More often than not, it depends on the driver's awareness of safe driving and driving skills. The retarder is a good choice for vehicles with long downhill slopes. It is hoped that the gradual popularity of retarder in our country can make truck driving more safe and efficient.
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