rahim seidi; Mohammad esmail Khorasani Ferdavani; Mohammad Javad Sheikhdavoodi; Hassan Masoudi
Abstract
Today, one of the main challenges is to control fuel consumption, which has an effective role on other sectors of the economy. In this situation, efficient practices are necessary to reduce fuel consumption leading to lower costs. This paper shows how an intelligent control system has been designed and ...
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Today, one of the main challenges is to control fuel consumption, which has an effective role on other sectors of the economy. In this situation, efficient practices are necessary to reduce fuel consumption leading to lower costs. This paper shows how an intelligent control system has been designed and how an electronic engine speed control system was replaced with the mechanical system. The aim of construction and evaluation of an electronic system was to control engine speed in harvesting machines. The conventional control of engine speed in 7000 series sugarcane harvesters is mechanical. Stepper motor, drivers, micro-controller, joystick and potentiometer were used, as well as the C programming in code-vision to program the microcontrollers. A t test was conducted to compare fuel consumption between the systems. The statistical analysis showed significant difference between the control systems in 1% probability level. Results from the implementation of this system represented the design and proper functioning of the system. The results showed a reduction of about 6.3% in fuel consumption when electronic control system was used, comparing to mechanical control and this was due to the use of intelligent and automatically control of engine speed. Installation of this system on existing sugarcane harvesters will save about 505,000 liters of fuel annually.
rahim seidi; Mohamad Esmail Khorasani Ferdavani; Mohamad Javad Sheikh Davoodi; Hasan Masoudi
Abstract
The aim of this study was to design, Constructand evaluate an electronic system for control of the forward speed control in 7000 series sugarcane harvesters. The conventional method of control for the forward speed of sugarcane harvester in 7000 series is mechanical. The new electronic control system ...
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The aim of this study was to design, Constructand evaluate an electronic system for control of the forward speed control in 7000 series sugarcane harvesters. The conventional method of control for the forward speed of sugarcane harvester in 7000 series is mechanical. The new electronic control system was developed to replace the traditional mechanical control system. MotorStepper, drivers, micro-controller, joystick and potentiometer were used to program microcontrollers as well as C programming in code-vision. The new control system was evaluated during two series of tests. To determine the strength of the maneuverability of the harvesting machine, the first test was conducted using a factorial experiment based on completely randomized design. The maneuverability was compared for mechanical and electronic control systems under different engine rpm. The location error at stoppage time in respect to the baseline was measured as basis for maneuverability. In the second test the response time was compared with a completely randomized design in two systems. The statistical analysis showed a statistically significant difference between the control systems in 1% probability level. The maneuverability of harvester equipped with electronic control system increased significantly and it was not affected by the changes in engine rpm (forward speed). In the second test the statistical analysis showed a statistically significant difference between the control systems in 5% probability level. Electronic forward speed control system resulted in reaction speed, and device maneuverability, ease of maintenance and use, a reduction in mechanical parts usage and finally the proper functioning of the system.
