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混合动力公交车的驾驶性和经济性的优化开发

杜志良，章 棵，黎 程，黄 鑫   

  1. （潍柴动力上海研发中心，上海 201114，中国）
  • 收稿日期:2017-10-10 出版日期:2017-12-30 发布日期:2018-01-03
  • 作者简介:杜志良(1965—)，男( 汉)，江苏，研究员级高级工程师。E-mail: du_zhiliang@163.com。

Developing of hybrid bus by optimizing drivability and fuel economy

DU Zhiliang, ZHANG Ke, LI Cheng, HUANG Xin   

  1. (Weichai Power Co., Ltd. Shanghai R&D Center, Shanghai 201114, China)
  • Received:2017-10-10 Online:2017-12-30 Published:2018-01-03

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摘要：

       为优化某型混合动力公交车的驾驶性、经济性，改善节油性能，开发了相关的方法和流程。以整车性能目标为导向，以中国重型商用车辆瞬态循环(C-WTVC) 的市区部分和中国典型城市公交循环(CCBC)2 种工况为基础，优化了已定配置的该车发动机扭矩特性、电机扭矩特性和扭矩协调管理。使用此方法优化该车后，在满足驾驶性的前提下，C-WTVC 循环市区部分整车油耗下降12.8%，中国典型城市公交循环整车油耗下降23.5%。因而，提高了动力系统效率，实现了节能减排。该方法也可用于用户实际运行线路路况的车辆性能优化。

关键词: 混合动力公交车, 动力系统效率, 性能优化

Abstract:

A new method and process for the development and optimization of hybrid bus were built to improve the drivability and fuel economy for a hybrid bus. Based on Chinese typical City Bus Driving Cycle (CCBC) and the city part of adapted world transient vehicle cycle (C-WTVC), the parameters of engine torque and motor
torque on target hybrid bus were adjusted. After the optimization, the bus’s fuel consumption is reduced greatly (12.8% under the city part of C-WTVC and 23.5% under CCBC) without sacrificing drivability. Therefore, the bus's powertrain efficiency is improved significantly, and the purpose of energy-saving and emission-reduction is realized. This method can also be used to optimize vehicle performance according to customer’s actual road spectrum.

Key words: hybrid bus, powertrain efficiency, performance optimization