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An electronic throttle can regulate air inflow into the combustion system of the engine. However, because of the exist nonlinearities including friction, nonlinear spring in the system, it is difficult in controlling the throttle valve. A nonlinear PID controller is proposed in this paper, it constantly adjusts the controller parameters proportional gain P, integral gain I and differential gain D...
There have been notable advances in learning to control complex robotic systems using methods such as Locally Weighted Regression (LWR). In this paper we explore some potential limits of LWR for robotic applications, particularly investigating its application to systems with a long horizon of temporal dependence. We define the horizon of temporal dependence as the delay from a control input to a desired...
This paper outlines the design strategy for the University of Johannesburg's (UJ's) hybrid vehicle entry into the South African Solar Challenge (SASC) 2010. The SASC is a biennial event focused on alternative energies and showcasing various automotive technologies. The SASC is broken up into different classes; UJ entered in the Greenfleet Technology class. This paper presents the design principles...
This paper studied the control system of a intelligent vehicle which uses the 16-bit Freesclale microcontroller MC9S12DGl28B SCM as the core control unit, complemented with Direct Current motor, servo motor, Photoelectric sensor, power supply circuit and other circuit. The position signal of the vehicle is collected by the laser sensors arranged regularly at the front of the vehicle body for the purpose...
Currently, DC motor of automatic doors speed regulating system utilizes PID control which has parameters tuning difficulties, poor stability, and imprecise control. To solve the above existent problem, this paper adopts the control strategy of fuzzy algorithm combining with PID control, introducing method of fuzzy PID control used in DC motor speed regulating system of automatic doors. Through establishing...
In this paper an Active Disturbance Rejection Control (ADRC) scheme is used to solve a sag control problem that has been noticed in tire production process. Constant length of the rubber sag is crucial in order to achieve high quality of tire reinforcement, which has its direct impact on driver safety. The ADRC method was compared in this research with other model-independent controller, i.e. Proportional-Integral-Derivative...
The Cal Poly Sustainable Power for Electrical Resources (SuPER) project is developing a low-cost, sustainable source of electrical power for a family unit for the 2 billion people with no access to electricity. After two years, the initial prototype system uses a solar photovoltaic source with battery storage, provides a standard DC output voltage, is digitally controlled, and is documented as an...
Multi-motor drive is a multi-input multi-output (MIMO), nonlinear and strong-coupling system. Its high precision coordinated control performance can meet the requirements of many drive applications, such as urban rail transit, paper making, electric vehicle drive, and steel rolling. To decouple the velocity and the tension of the three-motor drive system, a new control strategy is proposed by incorporating...
Linear motor driven compressor has many outstanding advantages comparing with conditional compressor driven by rotary motors, such as simple construction, low noise and considerable energy saving. This paper introduces a kind of linear motor driven compressor and the iterative learning control method to track the sine curve. The result shows that the ILC can make the compressor own better performance.
In this paper, we propose software architecture of behavioural-based robot control system using Active Object Computing Model. Active Object Computing Model is a programming technique that combines the three components, Event Driven Programming paradigm, Event Driven Software Architecture and UML State chart formalism. The scope of this project includes the activities of designing and implementing...
The basic structure of steel plate crosscut production line is presented ; PROFIBUS-DP network technology is adopted as realizing method of control system, which is a developing direction of industry automation control technology today, selecting S7-300 CPU315-2DP as the control center, TP270(Touch Panel) as man-machine interactive equipment and IMOREG DC Master(6RA70) as performance equipment. All...
In the induction motor indirect vector control system, because of its physical limits such as maximum current and voltage, the change of speed command or load would eventually cause the integral windup phenomenon and system performance degradation. A new anti-windup speed controller is proposed by combining the conditional integration and conditioning technique anti-windup. The conditioning technique...
Vehicular powertrain test bench was designed. A LabVIEW based measurement and control system for the test bench was secondary developed. CAN signals of powertrain's master controllers, serial signals of electric driving system based on USS and MODBUS protocol were synchronously sampled and monitored. The system integrated various communication protocols in one platform and had a good portability and...
This paper explores a new mechanical brake design to be used in order to limit the motion in low cost and high force passive haptic device design. The designed mechanical brake was inspired from the working principle of a coaster brake used in bicycles. The brake consists of conic surfaces actuated by a DC motor. A leaf spring is added to the system to detect the direction of the user movement. A...
Nonlinear coupling disturbance is an important factor to the precision of three-axis swing turntable. The paper studied platform model and anti-disturbance compensation control algorithm based on robust control idea. A three-axis turntable mathematical model is proposed using theory of DC motor and coupling torque equation. The robust controller is designed according to the adaptive robust compensation...
To study physical phenomenon occurring in nature, physical model is needed. In case of tidal hydraulic model, to study tide behavior, accurate tide generation is necessary. It has always been challenging to generate the accurate tide in the tidal hydraulic models. This paper describes automatic tide generating (ATG) system in physical model using Fuzzy Pre-compensator PID controller. The interaction...
Uncertainty is an inevitable problem in real-time industrial control systems and, to handle this problem and the additional one of possible variations in the parameters of the system, the use of sliding mode control theory-based approaches is frequently suggested. In this paper, instead of using a conventional sliding mode controller, a sliding mode control theory-based learning algorithm is proposed...
This paper proposed a PID method to control a driven pendulum. Driven pendulum is a suspended pendulum, which has a motorized propeller at the end of the stick. So it can be controlled with controlling the voltage given to DC motor. The characteristics of the transient response of this system such as overshoots and settling time are not acceptable. For example the settling time of this system is upwards...
Test of bench performance to the power of tractor PTO (power take-off ) is a necessary way to evaluate the economic and dynamic performance. So the bracket of engine bench testing is essential equipment, and the effect of DC electric dynamometer used in PTO power test is investigated in this paper. Realizing the process to achieve automatic control and automatic recording, thus greatly reducing the...
The multimodel and multicontrol approaches are two powerful techniques which are often useful in literature, to the analyse, the modeling and the control of complex systems. Indeed, the operating range of the process is partitioned into a set of operating regions. For each operation region a local model or/and controller is applied. The effective control applied to the process is a fusion of all these...
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