摘要
采用回收装置把制动能量回收到车上的能量储备器内,可提供显著降低车辆燃油消耗的可能。一种通用的技术是制动时在混合电驱动马达内产生电能,用它为车上电化学电池充电。然而这种电池价格昂贵、笨重,而且一般它不能承受快速充电,这将影响到它的寿命和容量。为了解决这样的问题,推荐和研究一种机械能储存装置,可接受和输送能量的波动。该装置的比例物理模型由飞轮载体、行星齿轮传动和一制动器组成,并已建成和运转在实验室内。试验表明,所推荐的装置可以用来储存和提供飞轮和车辆间制动能量,以后用一空气阻力测功器模拟,论证了该装置的运行原理和它的计算模型。进一步介绍了全尺寸车辆结合机械能量储存装置的计算分析,结果表明,该装置在车辆中使用,和通常的车辆相比较,可导致车辆的排放和燃油消耗降低。
Capturing braking energy by regeneration into an onboard energy storage unit offers the potential to reduce significantly the fuel consumption of vehicles. A common technique is to generate electricity in the motors of a hybrid electric vehicle when braking, and to use this to charge an onboard electrochemical bat- tery. However, such batteries are costly, bulky, and generally not amenable to fast charging as this affects battery life and capacity. In order to overcome these problems, a mechanical energy storage system capable of accepting and delivering surges of power is proposed and investigated. A scale physical model of the system, based around a flywheel, a planetary gear set, and a brake, was built and operated in a laboratory. Tests showed that the proposed system could be used to store and provide braking energy between a flywheel and a vehicle, the latter emulated by an air-drag dynamometer. This validated the operating principle of the system and its computational model. Further, a computational analysis of a full-size vehicle incorporating the mechanical energy storage system was conducted. The results showed that the utilization of this system in a vehicle, when compared with a conventional vehicle, led to reductions in emissions and fuel consumption.
出处
《传动技术》
2011年第2期13-21,40,共10页
Drive System Technique
