Solid-liquid composite road deceleration strip

Abstract

The invention discloses a solid-liquid composite road deceleration strip, and relates to the technical field of road deceleration strips. The deceleration strip comprises a deceleration strip main body which is made of a flexible material; the deceleration strip main body comprises deceleration strip base sections which are sequentially spliced and matched from left to right; a cavity is formed in each deceleration strip base section; a magnetorheological damping device is arranged in the cavity; the magneto-rheological damping device comprises an electromagnetic coil fixed at the top end in the cavity; a piezoelectric ceramic module for supplying power to the electromagnetic coil is fixed at the bottom end in the cavity; and the cavity is correspondingly filled with magnetorheological fluid. The deceleration strip has the beneficial effects that: when the vehicle speed is low, the bumping degree of the vehicle can be effectively reduced, and the discomfort of a driver can be relieved.

Description

technical field [0001] The invention relates to the technical field of road speed bumps. Background technique [0002] The speed bump is an important device used to limit the speed of the vehicle. When the vehicle passes the speed bump at a high speed, it will produce strong bumps, which will cause the driver to feel uncomfortable and reduce the sense of safety of the road environment, thereby affecting the driver's psychology. Encourage it to actively slow down before driving the vehicle through the speed bump. However, due to the fixed hardness of the current speed bumps, the obstacles to the vehicle cannot be effectively alleviated. Even if the vehicle passes the speed bumps at a lower speed, it will still feel obvious bumps, which will cause the driver's resentment towards the speed bumps. [0003] In order to solve this problem, there are currently some speed bumps filled with non-Newtonian fluids. For example, the Chinese application number 201710673128.8 discloses a ...

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Problems solved by technology

However, this method is too sensitive to speed. Even if the speed is very low, the non-Newtonian fluid will still start to harden, and the hardness will reach the maximum value when the speed increases slightly. The adaptability to speed is small and cannot meet the speed limit requirements. When the vehicle meets the speed limit requirements and passes the speed bump, the hardness of the non-Newtonian fluid is already very large, causing the vehicle to still be very bumpy and not suitable for the speed limit requirements, and in this way, the hardness of the non-Newtonian fluid changes It cannot be adjusted according to the speed requirements, and the practicability is insufficient

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