Vaircon - Continuously variable air-conditioning drive for PSV

该项目的重点是开发磁力无级变速器（mCVT）系统，该系统针对汽车辅助驱动应用进行了优化。CVT系统在混合动力汽车传动系统中具有优势，用于确保发动机始终以最高效率运行。通过利用这种灵活性，可以实现显著的燃油/排放效益。mcvt也可用于驱动辅助设备（例如空调（AC）压缩机，泵等）。在这些应用中，mCVT安装在发动机皮带上，以发动机功率驱动辅助装置，但以最佳速度，独立于发动机转速。通过这样做，交流压缩机可以在冷却要求所需的速度下运行，而不是通过固定的比例由发动机转速决定。这将显著减少发动机的寄生损失，从而在二氧化碳和燃料消耗方面带来好处。该系统的灵活性可以扩展到即使在发动机关闭时也能提供交流功能。这一重要功能允许在发动机停止/启动功能启用时继续交流，防止驾驶员禁用系统以维持交流，从而抵消所提供的所有燃油和排放优势。此外，发动机关闭功能允许该系统充当商用车辆的“停车冷却器”，删除了机舱顶部的二次冷却回路。magnnomatics正在为混合动力汽车开发一种更大的主动力总成mCVT系统。目前正在进行的主要动力系统的开发正在被用于加速这个较小的衍生产品，其中的知识将被转移到技术开发中。该系统的一个关键区别在于，为了具有竞争力，它必须降低成本，从而降低功能。这是通过使用创新的磁场叠加技术将现有Magnomatics mCVT系统中的两个电机组合成一个单元来实现的。这是一项正在申请专利的关键创新，它提供了一种比任何竞争对手的功率分割系统更紧凑、更高效、更简单、更便宜的机器。这个项目将提供一个工作，测试原型。该系统将用于对一组公交车进行评估，这些公交车目前正在等待Eminox的减排技术改造。最终，整个项目将由英国制造和改造系统，并向现有的运输供应商出口机会（数千美元）。

This project is focussed on the development of a Magnetic Continuously Variable Transmission (mCVT) system that is optimised for automotive ancillary drive applications. CVT systems have benefits in hybrid vehicle drive trains where they are used to ensure that the engine is always operating at maximum efficiency. By exploiting this flexibility, significant fuel/emissions benefits can be achieved. mCVTs can also be used to drive ancillaries (e.g. air-conditioning (AC) compressors, pumps, etc). In such applications the mCVT fits onto the engine belt driving the ancillary with engine power, but at an optimum speed, independent of engine speed. By doing this the AC compressor can be operated at the speed required by the cooling requirements, rather than that dictated by the engine speed via a fixed ratio. This leads to significant reduction in engine parasitic loss with consequent benefits in terms of CO2 and fuel consumption. The flexibility of the system can be extended to give AC function even when the engine is off. This important feature allows continued AC while the engine stop/start feature is enabled, preventing the driver from disabling the system to maintain AC and thereby negating all fuel and emissions benefits provided. Furthermore, the engine-off function allows the system to act as a "parking cooler" for commercial vehicles, deleting the secondary cooling loop on the roof of the cabin.Magnomatics is developing a much larger, main powertrain, mCVT system for hybrid vehicles. This ongoing development of the main powertrain system is being used to accelerate this smaller spin-off product where knowledge will be transferred to the technical development.A key differentiator for this system is that in order to be competitive it must have reduced cost and therefore function. This is achieved by combining two electrical machines present in the existing Magnomatics mCVT systems into a single unit using innovative magnetic field superposition techniques.This is a patent pending key innovation, which provides a more compact, more efficient, simpler and cheaper machine than any competing power-split system.This project will provide a working, tested prototype. The system will be vehicle fit ready for evaluation on a fleet of buses that are currently awaiting retro-fitment of emissions reduction technology by Eminox. Ultimately the entire project will see the UK manufacture and retro-fitment of the systems, with export opportunities (thousands off) to an existing transport provider already being established.