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)，例如刹车粉尘，占所有车辆颗粒物排放量的近一半。在成功实施限制尾气排放的政策后，立法者现在将注意力转向制动排放。已提出的减少制动器磨损颗粒的技术包括再生制动、制动盘涂层和新的刹车片配方。然而，这些技术成本高昂，而且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经济高效的涂层技术，称为 PEA（等离子电解铝），以减少 NEE 并提高制动盘的耐腐蚀性。各种制动测功机测试将在部件级别进行，然后进行整车级别测试。氧化铝基涂层将产生替代的磨损和摩擦机制，在每次制动过程中提供更一致的摩擦力并减少粘滑问题，从而实现更好的驾驶舒适性和调节。涂层制动系统预计将缩短制动距离并保持轮圈更加清洁。涂层转子的磨损程度极低，足以满足客车的典型使用寿命。因此，拟议的制动盘氧化铝涂层技术与工业合作伙伴新配制的制动片的目标不仅是通过减少NEE来改善空气和水质量，而且还可以提高骑手的舒适度并减少浪费，从而为电动汽车带来更安全、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，以实现人人电动汽车的目标。