CNG混合动力城市客车C-WTVC循环研究

Research for CNG Hybrid Electric Public Bus under C-WTVC Cycle

介绍我国现行的重型车能耗限值和试验方法相关标准,针对3辆CNG混合动力城市客车按照GB/T 19754—2015规定的C-WTVC可选循环进行能耗测试。试验数据表明,在C-WTVC循环测试工况下,3辆混合动力城市客车NEC变化量呈现无规律变化或持续充电,工况适用性有待进一步验证。持续充电的混合动力城市客车综合能耗不一定大,也不能轻易判定整车控制策略不合理。

The paper introduces the current energy consumption limit value and test method of heavy-duty vehicles in China,and tests the energy consumption of 3 CNG hybrid electric public buses according to the C-WTVC cycle stipulated in GB/T19754—2015.Test data shows that the NEC variation of the three hybrid electric public buses is irregular or continuous charging,and the cycle’s applicability needs further verification.Comprehensive energy consumption of Continuous charging hybrid electric public buses isn’t necessarily large,and can’t easily determine the vehicle control strategy unreasonable.