【摘要】 利用所建立的评价准则数体系,研究了WMTC测试循环的行驶特征及其与FTP、ECE等排放测试循环的差异。研究结果表明,与我国现行的ECEⅡ和即将实行的ECEⅢ测试循环相比,WMTC测试循环怠速比例和稳态工况比例低,瞬态工况比例高,因此对摩托车的排放控制提出了更为苛刻的要求。为满足WMTC测试循环的限值要求,摩托车在速度-加速度平面上各峰值处所对应的工况点,必须以排放最低作为发动机控制策略的目标函数。更多还原

【Abstract】 Apply the established evaluation criteria number system to research the ride feature of WMTC test cycle and the difference with FTPECE etc emission test cycle.The research result shows thatcontrast to present ECE II and upcoming ECE III test cyclethe idle speed ratio and steady state work condition ratio of WMTC test cycle are lowtransient state work condition ratio is highso the requirement for the motorcycle emission control is higher.In order to meet the requirement of WMTC test cycle limitin the velocity-acceleration planethe motorcycle work condition points that correspond with the different peak values must take the lowest emission as the object function of the engine control strategy.更多还原