This paper investigates the problem of improving vehicle stability using an electronic limited slip differential (ELSD). Unlike brake-based vehicle stability control systems, electronic limited slip differentials have the potential to control a vehicle's yaw stability without slowing down its speed. In this study, first, an ELSD model is designed to properly predict ELSD torque distribution. The model's accuracy is evaluated using experimental test data. Then, an intelligent ELSD control design is proposed using the developed ELSD model, capable of working in both off-throttle and on-throttle scenarios. The proposed design, which is based on a model predictive control approach, offers control of the ELSD differential by directly controlling the ELSD clutch pressure. This control design enables the controller to prevent unwanted oversteering yaw moments and avoid chattering in the ELSD clutch. The controller is implemented in a Cadillac CTS vehicle to evaluate its performance experimentally in various driving maneuvers.

中文翻译：

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一种提高车辆横摆稳定性的电子限滑差速器的智能控制

本文研究了使用电子限滑差速器 (ELSD) 提高车辆稳定性的问题。与基于制动的车辆稳定性控制系统不同，电子限滑差速器有可能在不降低车速的情况下控制车辆的偏航稳定性。在这项研究中，首先，设计了一个 ELSD 模型来正确预测 ELSD 扭矩分布。使用实验测试数据评估模型的准确性。然后，使用开发的 ELSD 模型提出了一种智能 ELSD 控制设计，能够在非油门和油门情况下工作。所提出的设计基于模型预测控制方法，通过直接控制 ELSD 离合器压力来提供对 ELSD 差速器的控制。这种控制设计使控制器能够防止不必要的过度转向横摆力矩并避免 ELSD 离合器中的抖动。该控制器在凯迪拉克 CTS 车辆中实施，以通过实验评估其在各种驾驶操作中的性能。