公交车辆节能减排驾驶技术研究

Study on Energy-saving Driving Skills of City Bus

本文通过实测数据分析了南京市公交车运行工况,结合实验所得排放数据,运用碳平衡法计算燃油消耗量。基于工况与油耗数据,分析两者之间的关系,发现加速工况的油耗贡献率最大,因此需要改善公交车辆的加速工况。此外应当选择合理的速度匀速行驶以控制匀速工况下的油耗量。并进一步分析了速度、加速度对油耗量的影响,发现当速度大于25km/h,加速度在0.1m/s2～0.4m/s2范围内,减速度在-1m/s2-0.1m/s2左右时油耗量较小。最后根据分析结果,提出绿色驾驶理念下,针对车速及加减速控制的公交车节能减排驾驶技术。

Bus driving process was analyzed based on was calculated with carbon balancing method using between the driving cycle and the fuel consumption the the was survey data, and the fuel consumption tab emission data. The relationship studied. It was found that we should improve the acceleration driving mode and control the speed during cruise driving mode to save fuel. Moreover, the influenceof the optimal speed and accelerationon fuel consumption was analyzed. It was showed that optimal speed was larger than 25 km/h and the optimal acceleration is 0.1 m/s2-0. 4m/s2. The optimal range for the deceleration is -1m/s2-0.1m/s2. At the end, according to the analysis results several eco-driving skills were put forward, such as the skills of controlling speed and acceleration.