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Shifting and power sharing control of a novel dual input clutchless transmission for electric vehicles

机译:新型电动汽车双输入无离合器变速器的换挡和动力共享控制

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摘要

To improve the overall efficiency of electric vehicles and guarantee the driving comfort and vehicle drivability under the concept of simplifying mechanism complexity and minimizing manufacturing cost, this paper proposes a novel clutchless power-shifting transmission system with shifting control strategy and power sharing control strategy. The proposed shifting strategy takes advantage of the transmission architecture to achieve power-on shifting, which greatly improves the driving comfort compared with conventional automated manual transmission, with a bump function based shifting control method. To maximize the overall efficiency, a real-time power sharing control strategy is designed to solve the power distribution problem between the two motors. Detailed mathematical model is built to verify the effectiveness of the proposed methods. The results demonstrate the proposed strategies considerably improve the overall efficiency while achieve non-interrupted power-on shifting and maintain the vehicle jerk during shifting under an acceptable threshold.
机译:为了在简化机构复杂性,降低制造成本的概念下提高电动汽车的整体效率并保证驾驶舒适性和车辆的可驾驶性,本文提出了一种具有换挡控制策略和动力共享控制策略的新型无离合器变速系统。所提出的换挡策略利用变速器的结构来实现动力换挡,与传统的自动手动变速器相比,通过基于碰撞功能的换挡控制方法,可以大大提高驾驶舒适性。为了最大程度地提高整体效率,设计了实时功率共享控制策略来解决两个电动机之间的功率分配问题。建立了详细的数学模型以验证所提出方法的有效性。结果表明,所提出的策略可显着提高整体效率,同时实现不间断的动力换挡,并在换挡期间将车辆的冲击保持在可接受的阈值以下。

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