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Implementation of automatic manual transmission for a two wheeler
Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering ( IF 1.5 ) Pub Date : 2021-07-06 , DOI: 10.1177/09544070211026521
Keshav Alias Deepesh Ramesh Shetkar 1 , Tejas Sadanand Pethker 1 , Saurabh Shrikant Savant 1 , Nilabh Rajendraprasad Vishwakarma 1
Affiliation  

The concept of Automatic Manual Transmission (AMT) is picking up speed in India after the launch of the Maruti Suzuki Celerio. But very few of the two-wheeler manufacturers in the world have tried to implement the AMT concept in a motorcycle. There are gearless motorcycles available which use a Continuously Variable Transmission (CVT) and a Centrifugal clutch, but this setup is very inefficient compared to a positive gear drivetrain. Thus these gearless motorcycles get low mileage and are also more expensive to manufacture. Geared motorcycles, on the other hand, have better starting torque, greater mileage and a higher span of gear ratios. They are also cheaper, but the average buyer is discouraged by the complexity of the operation. Even those familiar with riding a motorcycle do not shift optimally to obtain the best mileage/performance. The aim of this paper is to present an innovative AMT system developed and implemented on a manual geared motorcycle having a sequential constant-mesh gearbox with a multi-plate clutch. This was carried out by interfacing the manual gear shifting motorcycle with a microcontroller and using an electronic actuation mechanism to make it an automatic gear shifting motorcycle. The significant steps of this project would involve the sensor readouts of the parameters necessary, the actuation of the controls and, most importantly, the algorithm for the optimal shift points for a given motorcycle. These would be obtained experimentally and using the manufacturer data, if available. This AMT setup has been successfully developed and implemented. This setup can then be applied to any geared motorcycle with minimal structural changes without any modification to its existing gearbox. This converts the manual geared motorcycle into the automatic gear shifting motorcycle having better fuel economy and lower maintenance costs as compared to the conventional CVT motorcycles.



中文翻译:

两轮车自动手动变速器的实现

Maruti Suzuki Celerio 推出后,自动手动变速器 (AMT) 的概念在印度加速发展。但是世界上很少有两轮车制造商尝试在摩托车中实施 AMT 概念。有使用无级变速器 (CVT) 和离心式离合器的无齿轮摩托车,但与正齿轮传动系统相比,这种设置效率非常低。因此,这些无齿轮摩托车行驶里程低,制造成本也更高。另一方面,齿轮摩托车具有更好的启动扭矩、更大的里程和更高的传动比跨度。它们也更便宜,但操作的复杂性让普通买家望而却步。即使是那些熟悉骑摩托车的人也不会以最佳方式换档以获得最佳里程/性能。本文的目的是介绍一种在手动齿轮摩托车上开发和实施的创新 AMT 系统,该摩托车具有带多片离合器的连续常啮合变速箱。这是通过将手动换档摩托车与微控制器连接起来并使用电子驱动机构使其成为自动换档摩托车来实现的。该项目的重要步骤将涉及必要参数的传感器读数、控制装置的启动,以及最重要的给定摩托车最佳换档点的算法。如果可用,这些将通过实验并使用制造商数据获得。此 AMT 设置已成功开发和实施。然后,此设置可以应用于任何齿轮摩托车,只需进行最小的结构更改,而无需对其现有变速箱进行任何修改。这将手动变速摩托车转变为自动变速摩托车,与传统的 CVT 摩托车相比,具有更好的燃油经济性和更低的维护成本。

更新日期:2021-07-07
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