Below are the 20 most recent journal entries recorded in motorxbh's InsaneJournal:

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Thursday, June 2nd, 2011
10:05 am	In the Park When I was in the park, I found a clear chair and then sat down. I had always been thinking that life was so changeable; I stayed with my husband yesterday and then today he vanished into the thin air. It was really incredible. I felt I was dreaming, but it was not. I pinched myself and could still pain. I heard a noise of a Novak brushless motor when I was sitting on the chair thinking the question, because there were very few people in the park and it was so quiet at that moment, so I could hear every small noise. I raised my head and I could not believe my eyes. The man riding the electric bike should have had been my husband! It was unbelievable. But behind his back, I saw a woman, who was more beautiful and younger than me, and in his eyes, he could completely abandon me according to those two points. I knew it very clearly. He stopped the motorized bicycle and greeted me. He was pale on his face and there was a little shiver in his voice. (Comment on this)
10:02 am	The performance comparison of ac motor and dc motor because of its solid structure, operation stable and reliable, low cost and high efficiency， AC induction motor have been widely used. AC motor controls not as good as DC motor, and in many applications there are precise positioning, torque control, speed control requirements. To achieve this functionality and improve the control precision, we need a more complex closed loop control system and effective control algorithm, the complex control algorithm contains a large amount of data and systems, and there are demanding computing power and speed of the microprocessor. Formerly, AC motor control they use single chip 8031, 8051 and so on, the circuit components is more, the hardware is complex, system operation reliability is bad and the flexibility is small. the emergence of Digital signal processor (DSP) makes the implementation of modular motor control system become possible. (Comment on this)
10:01 am	The meaning of Brushless motor to improve fan efficiency As to the traditional fixed-frequency air-conditioning, there are several key aspects to improving energy efficiency, the first is the efficiency of the compressor, Currently, the traditional fixed-frequency air-conditioning in the domestic market still has some vitality. The second one is the energy efficiency of heat exchangers. A heat exchanger is in indoor side (also known as the evaporator), another one in the room outside (also known as the condenser.) Two heat exchanger and compressor matching, both of them will affect the energy efficiency of air conditioning. In addition to the above two areas, in recent years, to improve the efficiency of air duct of the fan brush motor has become a key component of companies concerned. In fact, the air conditioning compressor also has motor inside. However, the traditional performance improvement of the compressor motor has not much meaning to improve energy efficiency improvements. But the air duct of the motor situation is different. Traditional wind tunnel motor is single phase induction motor; this motor efficiency was in about 40%, but if you use brushless DC motors, motor efficiency can reach above 75%. Therefore, the air duct portion of the motor to improve power consumption can be saved. (Comment on this)
9:29 am	The limited factors to affect the progress of brushless motor Although the brushless motor will improve the efficiency of air condition, but there still has some difficulties for domestic manufacturers to the research and develop brushless motor. Especially after the development of the enterprise, it will add more difficult for air-conditioning producers, thus, while the air conditioning manufacturers have been put into research and development in this area, but also have to end with a period of time. The second limited factor is the cost, Although the price difference between different specifications brushless DC motor and traditional AC motor is different, but general speaking, The cost of brushless DC motor is twice as traditional AC motor, some even more than doubled. (Comment on this)
8:57 am	The energy efficiency of air condition Although when the compressor and heat exchanger is confirmed, the general level of energy-saving air-conditioning has been confirmed, but there are air conditioning manufacturers, said air duct motor like we usually call "the last straw breaks the camel." If you tried every means, the air conditioning system efficiency value reached 3.59; in this case, if wind motor single induction motor replaced by brushless DC motor, the value of energy efficiency could reach 3.61, thus, air condition will reach a new level of energy efficiency standards. Therefore, in the current technology to fight to a certain extent, wind tunnel technology to change the motor direction to be the most crucial part. So use brushless motor to manufacturing the fan is the trends of era. (Comment on this)
8:21 am	My Father and My Son Since I gave birth to my little baby, my father was too obsessed to go to look at and play with him in my house every day. He asked my brother to give a birth to a baby, but he would say that he and his wife had been busying with their careers in the brushless electric motors and the garden and did not want to have a baby yet every time when my parents prompted him and his wife to give birth to a baby. They got very angry, especially my father, who was an old antique, even wanted to break off with my brother. So he would ride his power e bike and went to my house to coax him every day. He always stayed at my home till very late at night no matter how I asked him to go back home. My husband got angry one night and asked me to call my mother to ask her to take my father home. My mother rode her motorized bike and arrived at my home twenty minutes later and scolded my father and then asked his go home with her. it was the first time that I saw a person liked a baby so much. (Comment on this)
8:17 am	After Signing the Divorce Agreement My ex-husband sent me the divorce agreement several days later; I signed my name on the agreement and I was single from then on. I had no job and no husband within several months. Things had changed so rapidly and I felt very sad. The first time I thought of was to go to the bar and drink beer to drown all my sorrows. I went on my motorized bicycle and went the nearest bar. I drank one bottle of beer after another and after a long time, I heard a voice saying that they were going to close the door I paid for the beer and went out of the bar. I had been drunk, but I could still remember my mamba brushless motor electric car and wanted to ride it home. I felt a little dizzy and could not see things very clearly in front of me. The guard saw me being unable to stand steadily and asked me to take a taxi home instead of riding the electric power bike and he would help me looking after the electric car. I followed his advises and stood by the roadside waiting for a taxi. (Comment on this)
8:10 am	My Daughter and My Son-in-law My daughter and my son-in-law had stayed at home for several months, but my daughter did not conceive yet during that period of time. They were too idle and did not want to stay at home every day. They could not bear the leisure and did nothing all day long anymore, so they told my relatives by marriage the fact one night when they went back from the electric brushless motors factory. They said that they did not want to stay at home anymore and wanted to work with them in the factory. They were very disappointed when they heard what they said. They only wanted to hug a grandson like another old man, whose daughter-in-law was the boss of the industrial dc motors in the village and they did not want him looking down upon them. My male relative rode his new electric powered bicycle and went my house that night. Why my daughter did not conceive for so long period of time? Was there something wrong with my daughter? He asked me a serious of questions. (Comment on this)
Wednesday, June 1st, 2011
9:56 am	Electric Bikes, So Convenient Many people are a little confused as to what an electric bike is. Is it really a scooter, or a bike? Can you pedal on it? Will the motor take you a long way? Is it really worth buying one? Actually an electric bike is a pretty interesting product. It can help you get the exercise you need, and go more distances at the same time. Let’s go over the electric bike in itself. The electric bicycle comes in two different styles. The first looks like a bike but the second like a motor scooter. An electric bike has certain specifications and is not allowed to run at speeds higher than 15 mph. Motors cannot be made to go faster than that. In most countries you don’t have to register an e bike. This means you don’t have to pay insurance, or pay taxes on it. In most cases you aren’t even required to wear a helmet, although it’s much suggested. (Comment on this)
9:55 am	Bike Expo This year, for the first time, Bike Expo actively covers all the segments of the cycling industry. The young trade show thus positions itself as a segment-overlapping presentation platform for road, MTB, urban and also electric bikes. The segments are presented according to themes, ensuring optimal orientation and an efficient trade show visit for retailers. One of the focus topics at Bike Expo is a professional training program for retailers. Consumers increasingly demand competent service. Dealers and retailers need to distinguish themselves from the competition; continuing education is the key. In Munich retailers can expect events such as the 5th ISPO Innovation Forum, the 2nd International Bicycle Developers’ Congress, manufacturer workshops by SR Suntour and Hostettler and the training program by Extra Energy E.V. This is a successful event, especially for electric powered bicycles. Lots of electric bike kits are shown on this Expo. They are wheels, brakes, and electric motors. And also you can use these kits to own yourself a diy electric motorcycle or bicycle. (Comment on this)
9:53 am	Insurance Company’s Warning The Insurance Brokers Association of Ontario (IBAO) now is warning consumers using vehicles such as scooters and electric bicycles (e-bikes) that these vehicles offer limited or no liability coverage on a consumer's insurance policy. In a statement, IBAO CEO said the association's warning was prompted by an increasing number of advertisements at the dealer level stating that these bikes require no insurance. "While this statement is in fact true, these vehicles still pose a real danger," Carroll said. "Ontario citizens need to know that they may have no liability coverage if they get into an accident with one of these vehicles and they could find themselves without coverage if they cause property damage or worse, injure another person." Habitational policies exclude "gas powered bicycles except for lawnmowers, other gardening equipment, snow blowers, wheelchairs and motorized golf carts on the golf premises." However, a good number of policies exclude electric bikes and other such vehicles. (Comment on this)
9:51 am	E-bike’s Advantage and disadvantage Electric bikes have the unique advantage that not requiring a license. While, unfortunately gas powered ones do and you have to follow all the standard motor vehicle laws before. So you can still get a DUI on gas powered bike but probably not on electric one though that varies state to state and I'm sure they'll change that if they haven't already. Personally I could not justify the cost of an electric bike. The kit is worth the money and over time you'd save money. Instead of paying 50-80 dollars a month in gas you've be spending about 13 dollars a month to go 400 miles. I question though how long an electric motor would hold up going 400 miles a month though even if it only lasts a year it still easily pays for itself. Personally though I think I'd only use it for recreation or kind of a middle ground in exercise. (Comment on this)
9:49 am	A Famous Electric Motor Company An electric motor company in Flagstaff, Ariz., is going global to build motors for electric bikes and other applications. Electric-powered bicycles, or e-bikes, are the first commercial application for the 5-inch high motor from Motor Excellence. Contracts to build up to 1,000 high-efficiency electric motors by the end of the year for customers in Europe and Asia are expected to add 30 jobs by the end of the year to the 40 the company already employs. The company has won a nearly $1 million grant from the Arizona Commerce Authority for clean energy technology, just like electric bikes. The company is more than two years ahead of the schedule it set in 2009 when it received the $962,000 grant from the 21st Century Grant Program coordinated by the ACA. The grant used federal stimulus funds specifically designed for investing in energy-efficient and renewable-energy products manufactured in Arizona. (Comment on this)
9:40 am	E-bikes, Small But With Big Power What are electric bikes? E-bikes, as they’re called, are not scooters. They don’t travel at those speeds (most going at a max of 20 mph), and they have pedals just as regular bicycles do, which riders can use to travel at their own steam. When the terrain gets rough, cyclists either turn a key or push a button to engage the motor. E-bike doesn’t replace their effort, but it does allow them to cycle farther and faster with less exertion. These vehicles do not run on fossil fuels, so they’re a relatively “green” mode of transportation; a removable battery is the power source. “There’s no learning curve to using these bikes,” assures Dan Lehman, owner of the e bike tour company Austin Lehman, the first North American outfit to use these bikes widely on its tours. They’re very intuitive, with brakes that are the same as on a normal bike. (Comment on this)
9:36 am	The growth experience of brushless dc motor Back to the 30s century, people have began to develop brushless DC motor to replace the mechanical brush commutation. After decades of effort, until the early 60s of last century this dream finally comes true, Since the 70s of last century, with the rapid development of power electronics industry, many high-performance power semiconductor devices, such as GTR, MOSFET, IGBT, IPM appeared in succession, and the advent of high-performance permanent magnet, brushless DC motors’ widely used is in laying a solid foundation. Brushless DC permanent magnet motor main body composes of the motor, motor controller and electronic switching circuit three parts. The stator windings general made of multi-phase (three-phase, four-phase, five-phase range). (Comment on this)
9:32 am	The features of frequency ac motor Compared with the frequency conversion AC motor, DC frequency motor is adopting permanent magnet which reducing the rotor induced currents and magnetic losses, so it has higher energy saving potential. As more energy-efficient products, DC inverter appliance is expected to become the future new bright spot of home appliance industry; DC inverter technology will become the most promising technology, and brushless inverter DC motor will certainly become the most popular frequency devices to achieve this technology. As to the advantages of home appliances, the State Quality Inspection Center for household appliances Minister Lu Jianguo take Frequency washing machine for example, On the one hand, when fixed-frequency washing machine in the dehydration starts, the speed increase from zero directly to a high-speed, it is easily lead to vibration and produce noise. On the other hand, frequency water washing are water-saving and energy-saving. (Comment on this)
Saturday, May 28th, 2011
10:27 am	Echo and A Boy in Our University Echo was born in a rich family. She was the school flower of our university and every student discussed her every day. She turned a blind eye on any other outstanding boy’s pursuit and fell in love with a poor boy on the contrary. No one of us could understand why she should have had fallen in love him. She would ride her gas powered bicycle or take a taxi to school before she fell in love with him, but she went by the bus when she decided to ran after him, because she wanted to take the opportunity to meet him in a short distance. He rode his electric trike to avoid her, because he thought that he did not match her and he did not want to become other students’ jokes. But she still insisted to pursue him. He told her one day that he did not want her like that and that she could find a better man than him. She went on her homemade brushless motor electric car and ran after him with the quickest speed. She told me that she would never give up pursuing him before he promised her.
Wednesday, May 25th, 2011
9:31 am	A Misunderstanding I heard one of my colleagues cursed me, saying that I was a scoundrel and many other harsh words that injured me deeply when I was at the door of our company one day. I had not done anything wrong and why she cursed me like that. I could not understand. I stopped my sensored brushless motor electric car and entered the company. I asked her why she abused me. Her face became red and she was speechless suddenly. She told me that she only cracked a joke with her husband in the telephone and had no hostility on me. I did not believe what she said. I rode my electric e bike and went to ask his husband. Her husband told me that he did not trust me and was afraid that I had affection towards his wife. He did not trust me and asked her wife to curse and so that he would believe there was nothing between us. I left his electric hub motors factory angrily. I had never had anything thought on his wife and more importantly I had my own girlfriend. I thought he had thought too much. (Comment on this)
9:30 am	My Aunt After I came back from the vegetable market, my aunt had stood at the door of the house waiting for me and asked me why I had gone for so long. I was hesitant and could not how to tell her. She perceived that I had something to tell, but I attempted to conceal. She did not stop asking me and so I had to tell her the truth. I stopped the dc brushless motor electric car and pulled her entering the house. I told her that I had seen my uncle staying with a girl in his car. She was not only young, but also beautiful. Her expression changed suddenly when she heard the message. She called my uncle at once. My uncle said that he was having a meeting in the hub motors bikes factory with his general manager and hung the phone right away. My aunt could not be happy and asked me to cook. She was restless and maybe was thinking what my uncle was actually doing. She rushed out of the house and rode the motorized bicycle hurriedly. I shouted behind her, but she had gone farther and farther. (Comment on this)
8:56 am	The Result of Being Pressed by the Door All villagers knew that I was pressed by the gate of my colleague’s house the next day and I became the joke of our village suddenly. I was criticized by my aunt and uncle. I explained to them that I only wanted to scare him and had never thought the result. More importantly, I was innocent, but they did not believe no matter how I explained. My girlfriend rode her latest electric bicycle and went to my aunt’s house that morning. She asked me that whether I had really pressed by the door and I nodded. She said that she had known and left the house disappointedly. I was really too impulsive and childish that time. I went on my ac brushless motor electric car and ran after my girlfriend, but in vain; she was unwilling to talk with me at all. I knew that I had finished. She did not speak to me afterwards. I went to her bicycle electric motors factory for several times in the hope of begging for her forgiveness, but she did not look at me at all. I knew it was my fault, but she did not give me the chance. (Comment on this)