Axle mounted motor for retrofit to DMU's to enable zero emissions in stations

该项目提供了一种解决方案，在柴油客运列车怠速时大幅减少包括NOx和PM在内的排放。英国目前有超过3500辆客运轨道车辆安装了柴油发动机，其中绝大多数将从减排中受益，特别是在车站及其周围，柴油发动机目前继续怠速，或在静止状态下升高怠速，有时在终点站停留长达30分钟。这是NOx、PM排放等造成当地空气质量问题的重要原因。此外，轨道车辆需要大量能源和电力来加速(因此造成更多排放)，但在接近车站的过程中，大量能量通过“制动”而“损失”。该项目将通过在减速期间回收制动能量并将其重新用于车站内的辅助负载和站外加速的牵引来解决这两个问题，这将使柴油发动机能够隔离在车站内和周围。我们的目标是开发和集成一种小型、低质量、高峰值扭矩和峰值功率的车轴安装式电机，用于DMU/DEMU乘用车应用的改造和升级。该马达应能在制动过程中回收动能，并在加速时为拖车转向架车轮提供动力。该项目将为铁路带来几个关键的成本和脱碳效益。*它将使车站内和周围实现零排放，包括NOx和PM，使DMU能够在发动机关闭的情况下接近、停留和离开车站*它将使所有排放按比例平均减少。通过从再生制动中回收电能以及通过辅助和牵引使用重新部署所产生的燃料消耗*它将减少刹车磨损，从而减少刹车片的微粒排放，特别是在车站周围*它将通过节省燃料、发动机/变速器维护和刹车片减少列车操作员的运营成本*它将不需要对现有的柴油发动机或传动系统进行任何修改，并将与任何其他脱碳举措相辅相成。*与任何其他以前或当前的混合解决方案相比，它将提供一个大大降低的成本和风险解决方案。

This project provides a solution to substantially reduce emissions including NOx and PM when diesel passenger trains are idling.There are over 3,500 passenger rail vehicles in the UK currently fitted with a diesel engine, the large majority of these would significantly benefit from emissions reduction, especially in and around stations, where diesel engines currently continue to idle, or elevated idle whilst stationary, sometimes for up to 30 minutes at a terminal station. This is a significant contributor to local air quality issues from NOx, PM emissions etc.Furthermore, rail vehicles require large amounts of energy and power to accelerate (and therefore contributing more emissions), and yet, on the approach to stations significant amounts of energy are "lost" through "braking".This project will address both issues by recovering the braking energy during deceleration and re-using it for auxiliary loads in station and traction to accelerate out of station, this will enable diesel engines to be isolated in and around stations, whilst also reducing the average emissions such as PM and NOx over a complete drive cycle by up to **35%** and operational costs by up to **30%**.Our objective is to develop and integrate a small, low mass, yet high peak torque and peak power, axle mounted motor, for retrofit and upgrade for DMU/DEMU passenger vehicle applications. This motor shall enable kinetic energy recovery during the braking application and also provide power to the trailer bogie wheels whilst accelerating.This project will enable several key cost and decarbonisation benefits to the railway.* It shall enable zero emissions, including NOx and PM, in and around the station, by enabling a DMU to approach, dwell and depart from a station with the engine switched off* It shall enable a proportional average reduction in all emissions, through reduced fuel consumption resulting from the electrical energy recovery from regenerative braking and re-deployment through auxiliary and traction use* It shall enable less brake wear thus reducing particulate emissions from brake pads especially around stations* It shall enable reduced operating costs for the train operator through fuel saving, engine/transmission maintenance savings and brake pad saving* It will not require any modification to the existing diesel engines or drivetrain and will compliment any other decarbonisation initiatives.* It shall provide a substantially lower cost and risk solution when compared to any other previous or current hybrid solutions