【摘要】：本文針對發(fā)動(dòng)機(jī)地面測試設(shè)備電磁閥可配置脈沖實(shí)現(xiàn)以及傳感器微小信號高精度采集兩大難點(diǎn)問題，進(jìn)行理論分析與研究，確定了可行的設(shè)計(jì)方案，并對該方案在實(shí)現(xiàn)過程中可能出現(xiàn)的技術(shù)難點(diǎn)進(jìn)行了可行性論證并提出了相對應(yīng)的解決方法。 在電磁閥可配置脈沖實(shí)現(xiàn)模塊中，主要實(shí)現(xiàn)了發(fā)動(dòng)機(jī)電磁活門可配置控制功能。針對電磁活門難以實(shí)時(shí)精確控制的問題，，本文提出了電磁閥可配置脈沖的實(shí)現(xiàn)方式，建立了電磁閥響應(yīng)時(shí)間模型，分析了影響電磁活門響應(yīng)時(shí)間的因素，并優(yōu)化了電磁閥驅(qū)動(dòng)電路，從而實(shí)現(xiàn)電磁閥響應(yīng)時(shí)間的最小化。 在傳感器高精度采集模塊中，主要實(shí)現(xiàn)了對傳感器微小信號高精度采集的功能。本文對采集鏈路各個(gè)部分分別建立模型，分析對系統(tǒng)精度影響的各個(gè)因素；同時(shí)對各個(gè)模塊關(guān)鍵技術(shù)進(jìn)行詳細(xì)理論分析，最終提出了提高系統(tǒng)精度若干解決方法。文章最后通過對采集鏈路各個(gè)部分進(jìn)行誤差累計(jì)計(jì)算，證明該系統(tǒng)能達(dá)到千分之一采集精度。 文中最后對滾控測量裝置性能進(jìn)行完整測試，通過對測試數(shù)據(jù)進(jìn)行分析和計(jì)算，證實(shí)了該裝置完全符合設(shè)計(jì)的性能指標(biāo)。該設(shè)備將控制和高精度采集兩個(gè)模塊集成于同一機(jī)箱，集成度較高，且系統(tǒng)插槽便于擴(kuò)展其他板卡。
[Abstract]:In this paper, aiming at the two difficult problems of the solenoid valve configuration pulse realization of the engine ground test equipment and the high precision acquisition of the sensor micro signal, the theoretical analysis and research are carried out, and the feasible design scheme is determined. The possible technical difficulties in the implementation of the scheme are demonstrated and the corresponding solutions are put forward. In the solenoid valve configurable pulse realization module, mainly realized the engine electromagnetic valve configurable control function. Aiming at the problem that it is difficult to control the electromagnetic valve accurately in real time, this paper puts forward the realization mode of the configurable pulse of the solenoid valve, establishes the response time model of the solenoid valve, and analyzes the factors affecting the response time of the electromagnetic valve. The drive circuit of solenoid valve is optimized to minimize the response time of solenoid valve. In the module of sensor high precision acquisition, the function of collecting sensor micro signal with high precision is realized. In this paper, each part of the acquisition link is modeled to analyze the factors that affect the accuracy of the system, and the key technologies of each module are analyzed in detail. Finally, some solutions to improve the system precision are put forward. Finally, through the error accumulative calculation of each part of the acquisition link, it is proved that the system can achieve 1/1000 acquisition precision. In the end, the performance of the roller control measuring device is tested completely. Through the analysis and calculation of the test data, it is proved that the device fully accords with the designed performance index. Two modules of control and high precision acquisition are integrated into the same chassis, and the system slot is convenient to extend other boards.
【學(xué)位授予單位】：中北大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TJ06;TK406

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