Study on the Correct of Oil Temperature in Wet DCT Gearshift

2013 ◽  
Vol 397-400 ◽  
pp. 524-529
Author(s):  
Wei Sun ◽  
Zhe Ning ◽  
Jin Ma ◽  
Guo Qiang Liu

In this paper, a dynamics model for DCT shifting process has been built to analyze the clutch hydraulic control system and make the clutch pressure curve with the affection of temperature. Correction for temperature control system reduces the impact degrees and the friction power even solves the "runaway" phenomenon. Experiment achieves the precise working pressure adjustment of the clutch.

2013 ◽  
Vol 336-338 ◽  
pp. 423-427
Author(s):  
Qi Chen ◽  
Lin Zhi Liao ◽  
Hong Rong Chen ◽  
Ni Yan Wu

Adopt a fuzzy PID control algorithm in order to solve the control difficulty which caused by the uncertainty lag of temperature control in chemical reaction kettle. The algorithm is realized by utilizing PLC system function. The system takes full advantage of the features of PLC control system, such as flexibility, reliability, and strong capacity of resisting disturbance. Field application result shows that the system eliminates the impact of time-varying delay on control function well. It has good robustness.


2014 ◽  
Vol 577 ◽  
pp. 325-328
Author(s):  
Xing Li Wu ◽  
Jiang Lei Dong ◽  
Fan Liang ◽  
Shi Gang Cui ◽  
Li Guo Tian

In the current, people pay more attention on food nutrition and security issues. In some places, the lack of farming land and land pollution leads to serious problem that people could not eat fresh vegetables. In order to solve these problems, "LED smart plant growth cabinet "came into being. As temperature is one of the most important control parameter that has the impact on plant growth, this paper describes a new type of temperature control system, and proposes simple, stable, precise temperature control method. In this paper we propose a new original two-dimensional temperature control strategy, which makes this cabinet has advantage over other domestic products. This paper describes the relationship between environment temperature and plant growth, and illustrates how the temperature control device works. In the experiment, we evaluated the advantages and disadvantages of this temperature control device.


2017 ◽  
Vol 3 (2) ◽  
pp. 88
Author(s):  
Suci Rahmatia ◽  
Marsah Zaysi Makhudzia

<p><em>Abstrak <strong>- </strong></em><strong>Transformator adalah peralatan listrik yang sangat vital dalam proses pembangkitan maupun transmisi energi listrik karena transformator dapat menaikkan atau menurunkan tegangan. Pada proses menaikkan dan menurunkan tegangan biasanya sering timbul panas akibat rugi – rugi tembaga pada inti besi dan kumparannya sehingga pada kondisi overload akan menimbulkan pemanasan yang berlebih dan dapat mempengaruhi kinerja transformator. Oleh karena itu dibuat sistem kontrol temperatur pada transformer yang dapat mengontrol temperatur di dalam transformator saat bekerja pada kondisi overload, sehigga transformatornya tidak terbakar. Dial thermometer digunakan sebagai alat yang mengontrol temperatur transformator pada sistem kontrol temperatur. Agar mendapatkan sistem kontrol yang optimal, maka setting temperatur pada dial thermometer di sesuaikan dengan temperatur maksimal tranformator dapat bekerja. Sehingga pada saat temperatur tertentu dial thermometer dapat memberikan sinyal untuk membunyikan alarm dan mengaktifkan kontrol kipas sehingga kipas dapat bekerja menurunkan temperatur transformator.<em></em></strong></p><p><strong><em> </em></strong></p><p><strong><em>Kata kunci - </em></strong><em>transformator, rugi – rugi tembaga, temperatur, sistem kontrol, dial thermometer<strong>.</strong></em></p><p><strong><em> </em></strong></p><p><em>Abstract <strong>- </strong></em><strong>A transformer is an electrical device that is vital in the generation and transmission of electrical energy because the transformer can raise (stepping up) or lower (stepping down) the voltage. In the process of raising and lowering the voltage is usually often caused heat loss of copper in iron core and coil so that the overload condition will cause excessive warming and can affect the performance of the transformer. Therefore, a temperature control system on the transformer can control the temperature inside the transformer while working under overload conditions, so the transformer is not burned. Dial thermometer is used as a device that controls the temperature of the transformer in the temperature control system. In order to obtain an optimal control system, the temperature setting on the dial thermometer adjusted to the maximum transformer temperature can work. So that when a certain temperature dial thermometer can provide a signal to sound the alarm and activate the fan control so that the fan can work down the transformer temperature.</strong></p><p><strong> </strong></p><p><strong><em>Keywords -  </em></strong><em>transformator, loss of copper, themperature, control system, dial thermometer<strong></strong></em></p>


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