The invention discloses a non-inflatable wheel with adjustable radial rigidity and a control method of the non-inflatable wheel. The non-inflatable wheel comprises a tread, a rim, a hub, a supporting assembly, a temperature sensing module and a radial rigidity adjuster. The elastic support body comprises two memory spring pieces; the memory spring piece comprises a shell, a heating wire and a shape memory module. The shape memory module comprises a plurality of arc-shaped shape memory alloy wires of the same structure. When a vehicle runs, the ECU calculates the slip rate of a current wheel, and when the slip rate is larger than a preset slip rate threshold value, the ECU controls the radial stiffness adjuster to electrify the heating wire and heat the shape memory module, so that the temperature of each shape memory alloy wire is increased, the elastic modulus of the shape memory alloy wire is reduced, and the radial stiffness of the tire is adjustable; it is guaranteed that the wheel slip rate is within the preset slip rate threshold range, and the vehicle running stability is improved.
本发明公开了一种径向刚度可调的非充气车轮及其控制方法,非充气车轮包括胎面、轮辋、轮毂、支撑组件、温度感应模块和径向刚度调节器;弹性支撑体包含两个记忆弹簧片;记忆弹簧片包含壳体、加热丝和形状记忆模块;形状记忆模块包含若干结构相同的、呈弧形的形状记忆合金丝。当车辆行驶时,ECU计算当前车轮的滑移率,当滑移率大于预设滑移率阈值时,控制径向刚度调节器向加热丝通电,加热形状记忆模块,使各个形状记忆合金丝的温度升高,降低形状记忆合金丝的弹性模量,实现轮胎径向刚度可调,保证车轮滑移率在预设滑移率阈值范围内,提升车辆行驶稳定性。
Non-inflatable wheel with adjustable radial rigidity and control method thereof
一种径向刚度可调的非充气车轮及其控制方法
2023-09-05
Patent
Electronic Resource
Chinese
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