ON-LINE ESTIMATION OF INDICATED TORQUE IN AUTOMOTIVE ENGINES USING A SECOND ORDER SLIDING MODE OBSERVER

摘要：

A second order sliding mode observer based on unknown system input estimation is proposed in this paper. The above observer is able to estimate the indicated torque as well as load torque, from the easily accessible measurement of engine crankshaft angular speed and transmission output shaft angular speed. The computer simulation shows the possibility and validity of using it for indicated torque reconstruction in on-board multi-cylinder engines. In addition, the dynamic properties of three components of the engine crankshaft, clutch and vehicle, are all considered into the physical system model for the indicated torque estimation such that it exhibits strongly nonlinearity and fits most of the engine working conditions.

作者: Wang Yunsong Zheng Weihua Shen Ming Liu Hongxi Sun Ning

作者单位: China National Institute of Standardization

会议类型: 国际会议

会议名称: 第九届工程结构完整性国际会议(The Ninth International Conference on Engineering Structural Integrity Assessment)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-10-15（万方平台首次上网日期，不代表论文的发表时间）