Control of Auxiliary Power Unit for Hybrid Electric Vehicles

Auxiliary power units (APUs) are widely used for electric power generation in modern hybrid electric vehicles. In the consideration of the APU, a common shaft connects an internal combustion engine and an electrical induction motor which is used as a starting motor and as a battery charger. Dynamic models of both engine and motor are used for the design of the APU controller. A field oriented control scheme and a decoupling controller with two independent current control loops is used for the motor. A torque controller, based on a sliding mode torque estimator, regulates the engine transients. The control of the whole APU is obtained by coupling the engine and motor controllers through a reference governor of the requested power. Numerical experiments on a realistic case study show good performance both in steady state and during transients.

[1]  Robert D. Lorenz,et al.  Engine torque ripple cancellation with an integrated starter alternator in a hybrid electric vehicle: implementation and control , 2002 .

[2]  V. Utkin,et al.  Sliding mode observers. Tutorial , 1995, Proceedings of 1995 34th IEEE Conference on Decision and Control.

[3]  Meir Pachter,et al.  Efficient nonlinear reference governor algorithms for constrained tracking control systems , 1999, Proceedings of the 1999 American Control Conference (Cat. No. 99CH36251).

[4]  Giorgio Rizzoni,et al.  Optimal energy management in series hybrid electric vehicles , 2000, Proceedings of the 2000 American Control Conference. ACC (IEEE Cat. No.00CH36334).

[5]  B. Eng,et al.  Modeling and Simulation of Hybrid Electric Vehicles , 2007 .

[6]  L. Glielmo,et al.  Current sensorless induction motor observer and control for hybrid electric vehicles , 2001, 2001 IEEE 32nd Annual Power Electronics Specialists Conference (IEEE Cat. No.01CH37230).

[7]  Werner Leonhard,et al.  Control of Electrical Drives , 1990 .

[8]  J. K. Hedrick,et al.  Modeling and Validation of Automotive Engines for Control Algorithm Development , 1992 .

[9]  Elmer G. Gilbert,et al.  A generalized reference governor for nonlinear systems , 2001, Proceedings of the 40th IEEE Conference on Decision and Control (Cat. No.01CH37228).

[10]  G. C. Verghese,et al.  Adimensional models and participation factors for the analysis of induction motor dynamics , 1999, ISIE '99. Proceedings of the IEEE International Symposium on Industrial Electronics (Cat. No.99TH8465).

[11]  John B. Heywood,et al.  Internal combustion engine fundamentals , 1988 .

[12]  Giorgio Rizzoni,et al.  Event-Based Estimation of Indicated Torque for IC Engines Using Sliding Mode Observers , 1996 .

[13]  Vadim I. Utkin,et al.  A control engineer's guide to sliding mode control , 1999, IEEE Trans. Control. Syst. Technol..

[14]  Minggao Ouyang,et al.  Average modeling of diesel auxiliary power unit for series hybrid electric vehicle , 2005, VTC-2005-Fall. 2005 IEEE 62nd Vehicular Technology Conference, 2005..

[15]  Vadim I. Utkin,et al.  Sliding Mode Observers , 2017 .

[16]  Jingdong Chen,et al.  Development of a linear alternator-engine for hybrid electric vehicle applications , 1999 .

[17]  D. Bouquain,et al.  Hybrid auxiliary power unit (APU) for automotive applications , 2002, Proceedings IEEE 56th Vehicular Technology Conference.

[18]  John R. Wagner,et al.  Nonlinear air-to-fuel ratio and engine speed control for hybrid vehicles , 2003, IEEE Trans. Veh. Technol..

[19]  J. R. Bumby,et al.  Auxiliary power units: a role for the TORUS generator? , 2000 .

[20]  L. del Re,et al.  Optimal control of dual power sources , 2001, Proceedings of the 2001 IEEE International Conference on Control Applications (CCA'01) (Cat. No.01CH37204).

[21]  Giovanni Fiengo,et al.  Non-linear Net Engine Torque Estimator for Internal Combustion Engine , 2004 .

[22]  Jeffrey W. Hodgson,et al.  Modeling and simulation for hybrid electric vehicles. I. Modeling , 2002, IEEE Trans. Intell. Transp. Syst..