Control of the Active Suspension for In-Wheel Motor
Control of the Active Suspension for In-Wheel Motor
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DOI：
10.1299/jamdsm.7.535
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发表时间：
2013
影响因子：
0.9
通讯作者：
Ying Ma;Z. Deng;D. Xie
中科院分区：
文献类型：
--
作者：
Ying Ma;Z. Deng;D. Xie
本研究提出了一种新型轮式电机主动悬架控制的电动车轮。从实际出发，对无电机样车、带固定关节电机和轮式电机主动/被动控制悬架四种模型进行了仿真分析。在分析过程中，以小于10 mm的相对竖向位移为前提，以降低汽车加速度、悬架挠度和车轮载荷为基本条件，以降低车轮垂直加速度为首要目标，以主动悬架LQR控制为动力。分析表明，通过对轮式电机非主动控制悬架参数的优化，可以解决电动轮质量引起的垂直问题，但垂直方向对轮式电机的影响仍然较大。然而，对轮式电机采用主动控制悬架，不仅可以提高汽车的平顺性和安全性，而且与非主动控制悬架相比，垂直向冲击减小了%。改进了轮式电机的主动控制悬架，从理论上和实践上都能有效地解决电动汽车的垂直性问题。
This study raises a new electric wheel with active control of suspension for in-wheel motor. Proceeding from the reality, we made a simulation analysis on these four models: a sample car with no motor, a motor with fixed joint, and active/inactive control suspension for in-wheel motor. During the analysis, less-than-10mm relative vertical displacement was used as a prerequisite, reducing the car's acceleration, the suspension flexivety, and the wheel’s load as basic conditions, reducing the wheel’s vertical acceleration as the primary target, LQR control of active suspension as the motive. According to the analysis, by optimizing the parameter of inactive control suspension for in-wheel motor, we can solve the vertical problems caused by the electric wheel’s mass, but the vertical impact to in-wheel motor is still heavy. However, using active control suspension for in-wheel motor can not only rise the smoothness and safety of the car, but also reduce 64% of the vertical impact comparing to inactive control suspension. This improves the active control suspension for in-wheel motor can effectively resolve the electric cars’ vertical problems both theoretically and practically.