Reducing emissions, increasing comfort: Optimizing alumina coatings on electric vehicle brake rotors

减少排放，提高舒适度：优化电动汽车制动盘上的氧化铝涂层

• 批准号: 560795-2020
• 负责人: Nie, Xueyuan
• 金额: $ 12.14万
• 依托单位: University of Windsor
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=721810
• 关键词: Reducing; emissions; increasing; comfort; Optimizing

Non-exhaust emissions (NEE), such as brake dust, represent nearly half of all vehicle particulate matter emissions. Having successfully implemented policies limiting tailpipe exhaust emissions, legislators are now turning their attention towards brake emissions. Technologies that have been proposed to reduce brake wear particulates include regenerative braking, disc coatings, and new pad formulations. However, these techniques are expensive, and regenerative braking can actually lead to greater rotor corrosion. This project will develop and implement a cost-effective coating technology, called PEA (plasma electrolytic aluminating), to reduce NEE and increase corrosion resistance of brake rotors. Various brake dynamometer tests will be conducted at component levels, followed by vehicle-level tests. The alumina-based coating would result in an alternative wear and friction mechanism that delivers more consistent friction forces and decrease stick-slip problems during each brake event for better driving comfort and modulation. The coated brake system is expected to reduce braking distance and keep wheel rims much cleaner. The coated rotors would show minimum wear potentially to match a typical lifespan of a passenger car. Thus, the proposed alumina coating technology for brake rotors together with newly formulated brake pads from an industrial partner will target to not only improve air and water quality through NEE reduction, but also promote rider comfort and reduce waste, leading to a safer and more sustainable future for electric vehicles. This project will assist auto OEMs and suppliers to get closer to producing "real" emission-free vehicles towards the goal of electromobility for everyone.

非废气排放(NEE)，如刹车粉尘，占所有车辆颗粒物排放的近一半。在成功实施了限制尾气排放的政策后，立法者现在将注意力转向刹车排放。已经提出的减少刹车磨损颗粒的技术包括再生制动、圆盘涂层和新的垫片配方。然而，这些技术是昂贵的，再生制动实际上会导致更大的转子腐蚀。该项目将开发和实施一种名为PEA(等离子电解铝化)的成本效益高的涂层技术，以降低制动转子的需求并提高其耐腐蚀性。将在部件级进行各种制动测功机测试，然后进行车辆级测试。氧化铝涂层将产生另一种磨损和摩擦机制，提供更一致的摩擦力，并减少每次制动过程中的粘滑问题，以实现更好的驾驶舒适性和调制。涂层刹车系统预计将缩短制动距离，并保持车轮轮缘更加清洁。涂覆的转子将显示最小的磨损，潜在地与乘用车的典型寿命相匹配。因此，拟议的刹车转子氧化铝涂层技术与一个工业合作伙伴的新配方刹车片将不仅旨在通过减少NEE来改善空气和水的质量，还将提高骑手的舒适性和减少废物，从而为电动汽车带来更安全和更可持续的未来。该项目将帮助汽车原始设备制造商和供应商更接近生产“真正的”零排放汽车，朝着人人都能实现电动汽车的目标迈进。