Safe long downhill section and vehicle cooling method

Abstract

The invention discloses a safe long and downhill road section, which includes alternately arranged up-convex road sections and ordinary road sections, the ordinary road section is a straight road section or a concave road section; pavement coating; railings are provided on the right side of the road section in front of the turning boundary of the steep and slow road sections, and the railings include horizontal bars, which are supported on the ground by several vertical bars. The second color layer, the first color layer and the second color layer are formed by spraying paints of different colors. The total number of first and second color layers on the rod is reduced to two. The invention is provided with an air injection system for cooling the brakes of the vehicle. The invention also discloses a corresponding vehicle cooling method. The invention can improve driving safety through air jet cooling and active use of visual effects, does not consume water resources, and is beneficial to environmental protection.

Description

technical field [0001] The invention relates to the technical field of road safety, in particular to long and long downhill road sections. Background technique [0002] The "Technical Standards for Highway Engineering" pointed out that long and large longitudinal slopes are very unfavorable to the driving of trucks. Downhill will cause overheating of the brakes, weaken the braking efficiency, and cause traffic accidents. Changing the long downhill road section into a spiral road section can reduce the slope and improve road safety. However, due to terrain constraints, many road sections in mountainous roads can only be built with long downhill slopes. The long downhill section has a top section, a middle section and a bottom section. Statistics show that 63% of the accidents occurred at the bottom of the slope. This is due to the continuous braking and heat generation through the top and middle of the slope, and the braking of vehicles at the bottom of the slope is more li...

AI Technical Summary

Problems solved by technology

[0009] Some scholars have shown that it is better to keep the temperature of the brake (wheel brake drum) within 200°C, at least 300°C; if the temperature of the brake drum exceeds 200°C, the dangerous working condition of thermal decay is likely to occur (see Zhou Ronggui, Xu Jianwei In the article "Study on Control Indication of Longitudinal Section of Highway Continuous Downhill Section", brake failure is more likely to occur when the temperature exceeds 300°C

[0010] During the braking process, the temperature rise of the brake is continuous, so if the brake temperature is too high to cool down, the temperature cannot be lowered quickly, and relatively speaking, it will lead to greater safety risks

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