| Title |
High Speed Operation of Fuel Injectors with Over Current Protection |
| Authors |
양형열(Yang, Hyong-Yeol) ; 서의석(Suh, Eui-Suk) |
| DOI |
https://doi.org/10.5370/KIEE.2011.60.11.2043 |
| Keywords |
Fuel injector cleaner ; PWM control ; Over current protection ; High speed drive ; Free wheeling |
| Abstract |
High speed drive method for a fuel injector cleaner with current control is presented in this paper. The fuel injector cleaner is used for cleaning the fuel injectors in vehicles when it is clogged with deposit and rust. The fuel injector cleaner cleans the fuel injector by turning on and off the fuel injector rapidly. When the fuel injectors are cleaned, the switching speed is very important. However, when the fuel injector is turned off, the residual current in the fuel injector coil slows down the return action of the plunger in the fuel injector deteriorating performance and speed of the fuel injector cleaner. In this paper, fast turn off operation method of fuel injectors is developed for more effective cleaning. The simulation and experiment results show the validity of the proposed method. |