Powertrain Technologies Ltd

设计和开发一种空气混合动力柴油发动机系统的演示器，目标是城市公交车市场，其中停止/启动占主导地位。该项目基于布鲁内尔大学获得国际专利的再生空气混合动力技术，专门解决了该系统在欧洲和世界其他地方公共汽车公司使用的现代柴油发动机中的应用。Brunel的空气混合动力技术有可能实现8% -15%的燃油节省，具体取决于城市公交车的工作周期和基础车辆的性能，并相应减少二氧化碳排放和运行成本。预计每辆巴士每年可节省5000至8000英镑的运营成本。布鲁内尔再生空气混合动力系统的工作原理是将发动机转换成一个有效的大型气泵，为发动机提供制动，并在高达10巴的压力下以压缩空气的形式捕获车辆能量。通过将发动机操作转换为停止/启动系统，并使用压缩空气及其包含的“免费”能量，通过空气启动器启动发动机，可以实现经济和二氧化碳的节约。该项目涉及开发一种“通用”可移动空气连接器，用于连接发动机进气道和空气储存系统，以捕获和存储来自发动机的压缩空气。创新的可移动空气连接器装置使发动机在动力不足时完全正常运行，不限制发动机的呼吸，因此没有功率损失，但当车辆制动时，发动机切换到气泵模式时，连接器移动到进气道接合，从而将发动机连接到储气罐。项目的最后阶段，将会有一辆营运原型巴士，经改装后可运行该系统，在定期营运计划中使用，以比较其在道路上的表现与标准车辆的表现，并在其后推广该产品。

To design and develop a demonstrator of an air hybrid diesel engine system aimed at the urban bus market where stop/start duty cycles dominate. Based on internationally patented Brunel University regenerative air hybrid technology, this project specifically addresses the application of the system to modern diesel engines used by bus companies in Europe and elsewhere in the world.Brunel’s air hybrid technology has the potential to achieve fuel savings in the range of 8% -15%, depending upon urban bus duty cycles and the base vehicle performance, with acorresponding reduction in CO2 emissions and running costs. Savings in annual operatingcosts are expected to be in the order of £5,000 to £8,000 per bus.The Brunel regenerative air hybrid system works on the principle of switching the engine to become effectively a large air pump to provide engine braking and capturing the vehicleenergy in the form of compressed air at pressures up to 10 bar. The economy and CO2 savings are achieved by converting the engine operation to a stop/start system and using thiscompressed air, and the “free” energy it contains, to start the engine with an air starter.This project involves the development of a “universal” moveable air connector to interface between the engine inlet ports and the air reservoir system to capture and store thecompressed air from the engine. The innovative moveable air connector device enables the engine to operate completely normally when under power with no restriction to the breathing of the engine and hence no power loss, but when the vehicle is braking and the engine is switched to air-pump mode, the connector moves to engage with an inlet port thereby connecting the engine to the air reservoir. The project will culminate with an operating prototype bus, converted to run the system, being used on a regular operating schedule with a view to comparing the on-road performance with a standard vehicle and subsequent promotion of the product.