modeling of automatic transmission control systems on LPG vehicles
Suroto Munahar, Muji Setiyo, Bagiyo Condro Purnomo

Muhammadiyah University of Magelang

Abstract

Currently, vehicles with the concept of bi-fuel (gasoline / LPG) are being developed. Given this concept offers many advantages, including higher efficiency, lower emissions and high octane content. However, the application of bi-fuel vehicles has many problems, especially in the automatic transmission control system. This happens because LPG / gasoline has different characteristics. LPG combustion engines have a longer flame propagation speed than gasoline. This condition causes the energy response generated to be slower. In addition, the current automatic transmission control system has not been able to read the angle of the road so that, in many cases the engine suddenly turns off when climbing because the system is not able to read road conditions. Because of this, this study develops an automatic transmission control system model for LPG vehicles that can adjust the angle of the road. The method applied is using a fuzzy logic controller (FLC). The simulation results show that the control system is able to adjust the characteristics of LPG and the angle of the road. In conclusion, the model made is very promising to be implemented in real vehicles.

Keywords: LPG, automatic transmission, control systems, gasoline

Topic: Engineering