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首页> 外文期刊>IEEE / ASME Transactions on Mechatronics >MEMS-Enabled Retrofitting of Automobile Wheel Balancer for Automatic Unbalance Detection
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MEMS-Enabled Retrofitting of Automobile Wheel Balancer for Automatic Unbalance Detection

机译：启用MEMS的汽车轮式平衡器改造，用于自动不平衡检测

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摘要

The presence of asymmetries in the mass distribution of automobile tires causes anomalous forces and torques, which lead to vibrations and to ride disturbances. For this reason, detection of unbalanced masses is fundamental in order to perform a careful balancing, improving both safety and comfort. To this aim, traditional wheel balancers are passive devices that allow one to detect unbalances relying on force sensors. The major drawbacks of this technology are the high production costs and the loss of accuracy of the force sensors during the wheel balancer lifetime. In this article, a new sensors layout for the next generation of wheel balancers is proposed together with a structural modification of the machine that allows us to magnify the information provided by the sensors. Notably, these modifications are quite practical, and allows retrofitting traditional machines. The goal is to prove the effectiveness of accelerometers and gyroscopes, which are low-cost devices requiring minimum calibration effort, for unbalance detection purposes. To this aim, an unbalance detection algorithm is developed. Starting from the amplitudes and phases of the signals acquired by the sensors, the severity and the angular position of the unbalance are determined relying on a regression model. Then, the proposed detection strategy is experimentally tested in different unbalance conditions.
机译：在汽车轮胎的质量分布中存在不对称的存在导致异常力和扭矩，这导致振动并骑行干扰。因此，检测不平衡的群众是基本的，以便进行仔细的平衡，提高安全性和舒适性。为此目的，传统的车轮平衡器是被动装置，允许一个人检测依赖于力传感器的不平衡。该技术的主要缺点是在车轮平衡器寿命期间的高生产成本和力传感器的准确性损失。在本文中，与允许我们放大传感器提供的信息的机器的结构修改一起提出了一种新的传感器布局的下一代车轮平衡器。值得注意的是，这些修改非常实用，并允许改造传统机器。目标是证明加速度计和陀螺仪的有效性，这是不平衡检测目的需要最小校准工作的低成本设备。为此目的，开发了不平衡检测算法。从由传感器获取的信号的幅度和相位开始，确定不平衡的严重程度和角度位置依赖于回归模型。然后，在不同的不平衡条件下进行实验测试所提出的检测策略。

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