Modeling and Analysis of the Toyota Hybrid System
MB1-04
Proceedings of the 2005 IEEE/ASME
International Conference on Advanced Intelligent Mechatronics
Monterey, California, USA, 24-28 July, 2005
Modeling and Analysis of the Toyota Hybrid System
Jinming Liu, Huei Peng and Zoran Filipi
Abstract—Toyota Hybrid System is the innovative powertrain used in the current best-selling hybrid vehicle on the market—the Prius. It uses a split-type hybrid configuration which contains both a parallel and a serial power path to achieve the benefits of both. The main purpose of this paper is to develop a dynamic model to investigate the unique design of
THS, which will be used to analyze the control strategy, and explore the potential of further improvement. A Simulink model is developed and a control algorithm is derived.
Simulations confirm our model captures the fundamental behavior of THS reasonably well.
D
I. INTRODUCTION
UE to their significant potential in reducing fuel consumption and emissions, hybrid electric vehicles
(HEV) are now actively developed by many car companies. In the late 1997, Toyota Motor Corp. released the first generation Prius, which features the Toyota hybrid system (THS). The MY2004 Prius model is based on an improved power train, the THS-II, with significantly improved vehicle performance, interior volume, and fuel economy. The new Prius is quite popular and has reached a sales volume of about 5,500 car/month. A scaled-up and more sophisticated version of THS (a.k.a. Toyota Synergy
Drive) is being developed and two hybrid SUVs
(Highlander and Lexus RX 400H) will be offered by Toyota within MY2005.
The power train configuration of THS is intriguing because it does not belong to the conventional categories of either series or parallel hybrids. For these two simpler hybrid configurations, the operation of the power train is relatively easy to understand. For example, Honda’s hybrid
Civic with the integrated motor assist system (IMA) [1] clearly belongs
Proceedings of the 2005 IEEE/ASME
International Conference on Advanced Intelligent Mechatronics
Monterey, California, USA, 24-28 July, 2005
Modeling and Analysis of the Toyota Hybrid System
Jinming Liu, Huei Peng and Zoran Filipi
Abstract—Toyota Hybrid System is the innovative powertrain used in the current best-selling hybrid vehicle on the market—the Prius. It uses a split-type hybrid configuration which contains both a parallel and a serial power path to achieve the benefits of both. The main purpose of this paper is to develop a dynamic model to investigate the unique design of
THS, which will be used to analyze the control strategy, and explore the potential of further improvement. A Simulink model is developed and a control algorithm is derived.
Simulations confirm our model captures the fundamental behavior of THS reasonably well.
D
I. INTRODUCTION
UE to their significant potential in reducing fuel consumption and emissions, hybrid electric vehicles
(HEV) are now actively developed by many car companies. In the late 1997, Toyota Motor Corp. released the first generation Prius, which features the Toyota hybrid system (THS). The MY2004 Prius model is based on an improved power train, the THS-II, with significantly improved vehicle performance, interior volume, and fuel economy. The new Prius is quite popular and has reached a sales volume of about 5,500 car/month. A scaled-up and more sophisticated version of THS (a.k.a. Toyota Synergy
Drive) is being developed and two hybrid SUVs
(Highlander and Lexus RX 400H) will be offered by Toyota within MY2005.
The power train configuration of THS is intriguing because it does not belong to the conventional categories of either series or parallel hybrids. For these two simpler hybrid configurations, the operation of the power train is relatively easy to understand. For example, Honda’s hybrid
Civic with the integrated motor assist system (IMA) [1] clearly belongs