The main content of this thesis is as follows: 1The structures of EPS are analyzed. The main components of EPS are introduced in detail. Then the distributed torque in EPS is analyzed and the control system model is set up. 2Three control modes are discussed and the control strategy of EPS is studied in detail. Three principal modules in the control strategy are discussed—the predicted module which predicts motor rotational speed and steering rotational speed, the power-assistant module and the return control module. 3The assistant torque curves of the motor are designed by using the B-spline, so that any kind of custom-built assistant torque curves can be designed according to different kinds of automobiles. 4The hardware frame of EPS is studied. The developed controller based on 8-bit MCU MC68HC908MR8 is introduced and many related circuit units are designed, including the control circuit, the driver control circuit and so on. The software structure is discussed, then the steering control program flowchart is given.

本文的主要工作有： 1分析了EPS 的總體構(gòu)成免费在线视频黄色，對(duì)EPS 的各個(gè)部件作了詳細(xì)的介紹，并在此基礎(chǔ)上分析了EPS 的受力情況在线观看国产对白网站视频免费播放，建立了控制系統(tǒng)模型黄色AA网站，并研究了EPS 的安全性能； 2討論了EPS 的三種控制方式欧美456正片，提出了控制策略不卡能看的黄色网站一区二区，并討論了其中三個(gè)關(guān)鍵模塊的作用：預(yù)估模塊包括對(duì)電機(jī)轉(zhuǎn)速和方向盤角速度的預(yù)估，助力控制模塊以及回正模塊深夜在线网址在线观看网站大全； 3用B 樣條插值方法進(jìn)行EPS 助力曲線的設(shè)計(jì)两人作爱视频在线看免费，可按照用戶的要求設(shè)計(jì)任意形狀的助力曲線，以滿足不同車型和不同用戶的要求看片a免费观看视频大片； 4研究了控制系統(tǒng)的硬件結(jié)構(gòu)华人在线精品免费观看，以MC68HC908MR8 為核心設(shè)計(jì)了控制器，詳細(xì)討論了控制器的控制電路国产原创在线观看网站免费下载、驅(qū)動(dòng)電路等日韩欧美性交；設(shè)計(jì)了控制系統(tǒng)的軟件，給出了控制程序流程圖色五月亚洲AⅤ综合在线观看，并對(duì)要點(diǎn)進(jìn)行了詳細(xì)的說(shuō)明免费性生活福利视频。

While the pure toque is combined by suspension center torque and balancing weight torque, so the change of pure torque can be achieved by changing the motion rule of suspension center and the size of offset angle.

凈扭矩是由懸點(diǎn)載荷造成的扭矩和平衡重產(chǎn)生的平衡力矩兩項(xiàng)的合成，改變懸點(diǎn)運(yùn)動(dòng)規(guī)律和平衡重的偏置角可以引起凈扭矩的變化国广一级黄色网站。

The present invention relates to a method for heuristically starting up DC brushless servo electric machine, including the following steps of (1) after powerup of an increment type photoelectric encoder, electrifying a stator winding two by two with identical time interval to generate six-directional stator winding resultant magnetic fields;(2) detecting six different angles rotated by the rotor within identical tiny time interval by the photoelectric encoder;(3) selecting most positive value rotation angle from the six different angles, and determining maximum torque corresponding to the stator winding resultant magnetic field, and implementing servo startup using the maximum torque as constant starting torque;(4) after the zero-point signal of the photoelectric encoder occurring, switching to servo operation with normal constant torsion.

本發(fā)明直流無(wú)刷伺服電機(jī)試探啟動(dòng)方法福利视频91，采用如下步驟：(1)增量式光電編碼器上電后對(duì)定子繞組采用相同的時(shí)間間隔兩兩通電，順序產(chǎn)生六個(gè)方向的定子繞組合成磁場(chǎng)最近2019年在线中文字幕大全；(2)由增量式光電編碼器檢測(cè)出轉(zhuǎn)子在相同的微小時(shí)間間隔內(nèi)分別轉(zhuǎn)過(guò)的六個(gè)不同的角度日韩黄色网不卡网站；(3)從轉(zhuǎn)子六個(gè)不同的角度中選出最大正值的轉(zhuǎn)角，確定相應(yīng)定子繞組合成磁場(chǎng)對(duì)應(yīng)的最大轉(zhuǎn)矩jlzz大全高潮多水老师，并以該最大轉(zhuǎn)矩為恒定啟動(dòng)轉(zhuǎn)矩進(jìn)行伺服啟動(dòng)www.大色网.com；(4)當(dāng)增量式光電編碼器零點(diǎn)信號(hào)出現(xiàn)后，切換為正常恒轉(zhuǎn)矩伺服運(yùn)行,2021国产一级黄色视频。

The electromagnetic torque and force were calculated with virtual displacement method. The friction torque was done with friction law. And then the output torque was calculated.

用虛位移法計(jì)算了電磁轉(zhuǎn)矩和電磁吸力视频高清国产在线观看网站下载安装，用摩擦定律計(jì)算了摩擦轉(zhuǎn)矩，進(jìn)而計(jì)算出輸出轉(zhuǎn)矩AV三级在线观看网址。

The results revealed that screwdrivers with triangle shaped handle could help subjects produce the maximum torque. Besides, using screwdrivers with hexagon shaped handle spent the least time, generated the minimum biceps muscle activity, and bad the least subjective fatigue rating. Moreover, wearing an anti-static glove or being barehanded can produced the maximum torque and spent the least time as well. Experiment 2 evaluates the handle diameter of screwdriver (30 mm, 34 mm or 38 mm) and operation plan. The results showed that the torque increased with the increase of the radius, the operation time and the brachioradialis muscle activity also increased with the increase of the radius.

本 研究共分為三次實(shí)驗(yàn)欧美AA视频网站，實(shí)驗(yàn)一分析握把造型(八角形、銳角六角形欧美性性享受在线、圓角六角形A三级片免费网站、槍型日韩草逼精品毛片、圓角三角形)與手套(棉質(zhì)手套、防靜電手套在线A片毛视频、赤手)的影響国产91免费在线，結(jié)果顯示三角形造型握把可產(chǎn)生最大扭力，六角形造型握把的鎖附螺絲時(shí)間最短九九r热網站、二頭肌肌肉活動(dòng)度最低www.99riavcom、主觀整體疲勞評(píng)比最低，防靜電手套與赤手狀態(tài)的扭力最大并且鎖附螺絲時(shí)間最短女人高潮一级AA片视频；實(shí)驗(yàn)二比較握把直徑(30 mm在线国产福利影院、34 mm、38 mm)與作業(yè)面的影響、WWW4438，結(jié)果顯示直徑越大扭力越大性交小说在线观看，但直徑越小鎖附螺絲時(shí)間則越短，且肱橈肌肌肉活動(dòng)度越低8888永久网站。

The paper present a kind of brushless DC torque motor with coreless armature, which haven t static friction torque , inferred method of calculating current, torque, EMF, and etc.

提出了一種電樞上無(wú)鐵心的無(wú)刷直流力矩電機(jī)国产噜噜观看，該電機(jī)無(wú)靜摩擦力矩。

The improved calculation considers the additional torque caused by the different intermesh. The additional torque also leads the transmission torque to reassign.

該方法考慮了工作輥壓下量的差異對(duì)其傳動(dòng)系統(tǒng)產(chǎn)生附加力矩的影響日本黄色一级A片，使集中驅(qū)動(dòng)式矯直機(jī)主傳動(dòng)系統(tǒng)各輥的傳動(dòng)扭矩得到重新分配久久久久久免费精品电影网。

Limited slip differential is improved according to common differential. Not having the common differentials disadvantage of dividing the torque into two equal parts, limited slip differential can give most torque or even all torque to another driving wheel which is not revolving in order to make use of the friction of this driving wheel to produce enough traction. This will greatly increase the dynamical capability, the passing capability, the stability and the safety of automobiles on different friction roads. So limited slip differential is substitute for common differential.

防滑差速器是對(duì)普通差速器的革新與改進(jìn)，它克服了普通差速器只能平均分配扭矩的缺點(diǎn)欧美又黄又大又粗大片，可以使大部分甚至全部扭矩傳給另外一個(gè)不滑轉(zhuǎn)的驅(qū)動(dòng)輪国产又粗又猛又爽的野外视频，以充分利用這一驅(qū)動(dòng)輪的附著力而產(chǎn)生足夠的牽引力，大大提高了汽車在雙附著系數(shù)路面上的動(dòng)力性和通過(guò)性5要A片欧美无线看，顯著改善了汽車操縱穩(wěn)定性亚洲欧洲美洲无码精品Va水蜜桃，有效地提高了汽車行駛安全性，是普通差速器的理想替代產(chǎn)品欧美视频一区二二区。

The torque measurement is one of important contents of transmission line. The non-Contract torque measurement method with high precision and high stability is one of hotpots that research machine quantity measurement in various countries today. Therefore, research on a non-contract torque sensor based on screw-type differential transformer is put forward.

扭矩測(cè)量是傳動(dòng)線路中的重要內(nèi)容之一欧美一级淫片在线观看，高精度、高穩(wěn)定性的非接觸式扭矩測(cè)量方法是當(dāng)今各國(guó)機(jī)械量測(cè)量研究的熱點(diǎn)之一精品视频黄色，為此亚洲一区二区三区性爱视频，提出了一種基于螺管形差動(dòng)變壓器的非接觸式扭矩傳感器的研究。

The first control strategy has the disadvantages such as a large amount of computations, inherent pull-out torque, difficulties in realizing the adaptive control and so forth. For the rotor flux-oriented control, changing of load or the rotor speed will result in increased or decreased torque winding currents, which will change the magnetic field distribution in the air gap. Assumption that magnetic field is approximately equal to that generated by torque windings will affect the levitation performances.

分析表明：氣隙磁場(chǎng)定向控制中存在最大轉(zhuǎn)矩限制av高清不卡、非線性機(jī)械特性aV女同一级毛片，難以實(shí)現(xiàn)自適應(yīng)控制等問(wèn)題；對(duì)轉(zhuǎn)子磁場(chǎng)定向控制而言99人e视频这里精品，當(dāng)負(fù)載或轉(zhuǎn)速變化時(shí)中文字幕日韩一区，由于轉(zhuǎn)矩控制繞組轉(zhuǎn)矩電流變化將導(dǎo)致氣隙磁場(chǎng)發(fā)生改變，如果仍以轉(zhuǎn)子磁場(chǎng)近似替代氣隙磁場(chǎng)作為懸浮依據(jù)十八岁禁黄色网站，必然影響到懸浮控制性能外国A级黄片。