Design Research Of The Prius Hybrid Troubleshooting Experiment System

In recent years, hybrid cars gradually become the mainstream of the new era, therefore, the demands and requirements for high-tech and high-quality technical personnel of hybrid vehicle repair industry are getting higher and higher. In response to this social demand, developing hybrid car fault diagnosis test system based on SCM to the domestic automobile professional colleges and training institutions is imperative.Based on the study of the development of hybrid cars home and abroad on the situation,analysis of the brand classic hybrid vehicle structures and works. In the end, choose the Toyota Prius hybrid car as an object of study experimental system. Focus on the control principle of the Toyota Prius hybrid system THS-II, research and analysis of the Toyota Prius hybrid car motor system common fault. The Prius hybrid car fault diagnosis test system simulation circuit controlled by the microcontroller is designed, including the following aspects: Use drawing software designed Prius drive axle assembly circuit diagram and set the location and type of fault; Use drawing software design troubleshooting flowchart Prius hybrid motor system, and analyzed their troubleshooting ideas and concrete steps; Use SCM system, experimental system microcontroller system power and reset circuit, serial to parallel chip to drive a relay circuit,system status demonstrates LED light water circuit and fault simulation system hardware circuit are designed and analyzed; At the same time, SCM procedures are designed, which correspond with system status demonstrates LED light water circuit and fault simulation system hardware circuit.The fault simulation diagnostic test systems can stimulate students’ interest in learning and students self-learning ability to provide a good foundation for the practical operation.