motor's Blurty
[Most Recent Entries]
[Calendar View]
[Friends]
Below are the 20 most recent journal entries recorded in
motor's Blurty:
[ << Previous 20 ]
| Thursday, June 2nd, 2011 | | 10:37 am |
A Good Electric Hub Motor Sales of electric bikes have spun into high gear this year. Some merchants like Amazon are reporting a 6000% increase this summer from last year. This is good news, because, for short trips, the efficiency and convenience of electric bikes is hard to beat. Here are some statistics that still amaze me: 40% of all trips are made within two miles of the home, and 50% of workers commute five miles or less to work. I recently heard about an inexpensive electric bike conversion kit that appears to be of good quality. It’s offered by a family-run company called Amped Bikes. The Amped Bikes kits incorporate a brushless 36V 500W electric hub motor, and can be installed on almost any bike with 26″ wheels. It is also said that the kits can be installed in about 20 minutes, and an installation video on website to show how it’s done. | | 10:33 am |
Our New E-bike Our company has just launched our new series of electric bikes. This kind of electric bike is awesome. It’s a perfect commuting solution because it takes less effort and because there is no chain to rip into my clothes, no more ankle strap necessary. It goes up to 18 miles an hour, but in a way is slower than my current 1- speed Bianchi lifepo4 simply because I can go faster than 18 mph if I want to. It will top out and it’s wasted effort to try to go faster. The lightweight e-bike has a battery which kicks in with 80% more power when faced with inclines or strong winds. You can cover twice the distance with half the effort as you take in the lifepo4 battery of Neuchatel and other picturesque towns, vineyards, chateaux, mountain scenery and nature reserves. So with this kind of electric bike, you can get both fast speed and light weight. So they are very convenient. | | 10:26 am |
About Ebikes Ebike has been engineered with quality materials and premium components, optimum handling, and years of trouble-free operation. Standard equipment includes a long list of “car-like” features. The blending of two and four-wheel design philosophies makes the new ebike the most advanced vehicle of its kind ever built. With its sealed battery unit and electric hub motor, the new ebike is state-of-the-art and the very latest in technology. With a top speed of up to 18 mph and a range of up to 20 miles, the ebike will get you where you need to go. Whether it's to get you up and over those hills or simply to get you home after a long ride, the ebike’s remarkable pedal-assist drive train is always ready. No stopping to make adjustments, just pedal and a push on the "thumb throttle" and a reliable electric bike motor engages. | | 10:23 am |
Will You Join in Our Ebike Club? I’m planning to start an electric bike club with some friends and we don’t yet have a name. Can you help us think of one? Finding a name is an important first step for any organization. It will force us to think about the goals of our group. This grueling process may release our hidden differences, but the fires of our disagreement will forge in us a new a sense of unity. We invite you to participate. The goal of the club is to encourage people in Ithaca to drive ebikes. The activities of the club may include ebike conversion workshops (basically how to install a hub motor); Extra cycle conversion workshops (how to convert your bike into a cargo bike); repair clinics, weird vehicle projects; group rides; an online forum for giving advice about ebike and for buying and selling ebikes; a way to buy parts as a group to get a discount; advocacy of some kind. | | 10:20 am |
The Requirements for Electric Bikes Due to environmental revolution taking place around the globe and rise in the prices of fuel, the electric bike has been evolved as a boon. There is a constant need for work outs, and the electric bike serves both the purposes of comfortable transportation as well as fitness. In the present day and age, the sales of the electric bikes have been elevated to a sky scraping scale. Therefore, the governments of various countries are framing various legal requirements for riding an ebike. The main objective behind framing these legal requirements is to safeguard the electric bike users and users of various other automobiles while they are on the road. Countries like the United States, ghd limited, the United Kingdom and Canada have passed various legal policies and requirements for the electric bikes. The electric bike is categorized as a totally different vehicle. | | 10:05 am |
Our Electric Bikes Electric bikes are rapidly growing in popularity for their low cost, energy efficiency and ease of use, especially in urban areas. And also there is a big demand for e bikes in the shopping market. So our company started to supply different kinds of electric bikes three years before. Our e bikes are with innovative transformation from conventional "blue smoke" engines to efficient and reliable battery and electric motor power systems. The history of e-scooters can date back to the early 1900s but the affordability and efficiency of today’s ebike has made it the major means of transport in most As the technology rapidly evolved, brushless hub motors, lithium battery technology and intelligent power controls has made our electric scooters lighter, more powerful and better performing than ever before. And you can see that our electric bikes are all very light. They are easy and light enough to drive. | | Wednesday, June 1st, 2011 | | 10:33 am |
Their Changes after They Knew the Fact Since the event of the false pregnancy, everything had changed. My relatives by marriage were unwilling to look at me. They said that we had cheated their feeling for a period of time. They bought and cooked the best food for my daughter and asked her to stay at home everyday during that period of time. They bought her a new small brushless motor electric car when she asked them to buy one and everything she wanted. Every villager had known that she had conceived. But in the end, she was not really pregnant and all villagers made fun of them when they rode the electric tricycle to work in the factory. They did not know where to put their faces. When they saw other parents hug their grandsons, they felt sad. They did not have mood and motive to work, because their biggest dream was to hug a grandson when they lived in the world. My son-in-law was not active in the dc electric motors factory as before and could not lift spirit all day long. They suddenly fell from the sky to the ground. | | 10:29 am |
I, My Ex-husband and My Son I was once the daughter of rich family, but my father was beaten by my ex-husband and committed suicide in the prison one day. Everything had changed overnight and I was nothing suddenly. I had conceived my son when I divorced with my ex-husband, who persuaded me to do miscarriage operation, but I did not and worked in an electric bikes shop in another city in the hope of forgetting him. He had been so cruel to me and my father and I would never forgive him. Fortunately, my son was very cute and very sensible and I needed not worrying about him after he was born. I rode my motorized bicycle to work every day in the shopping mall of the city since he was two years old. What I needed to do was to make a lot of money and bring my son up and I could not let his father let me down if he knew our existence in the world one day. Even thought he was the boss of the electric brushless motors factory, I would not ask for his help forever and I would live independently with my son. | | 10:26 am |
The Earthshaking News I thought the position of the editor in chief would definitely mine when I worked in the Magazine, so I got up early and was the first person arriving at the company. I stopped my electric e bike in front of building and hummed when entering the company. I waited for the general manager and the announcement of my promotion that day. When the general manager got to the company, he asked me to go his office. Down there, he introduced me a new comer and asked me to be his assistant. I wanted to get angry at that moment, but I could not do that and had to bear all wronged. I went on the motorized bike and go to breathe the fresh air outside. I had devoted all my time and efforts in the company and thought that I would deserve the position, but in the end, it was not mine, it was the general manager’s relative’s. I rode my dc brushless fan motor electric car and went back to the company after a while. I smiled and pretended to be strong, because I did not want them seeing my weakness. | | 10:23 am |
My Son and My Best Friend I insisted to give birth to my baby when my ex-boyfriend broke up with me. The baby was a boy after he was born. He was so cute that both my best friend Vera and I loved him so much. Although it was very hard for me to look after and bring up him, I felt I was happy as mother in general. When my lovely son was five years old, I planed to hold a party for him, so I rode my electric powered bicycle and went to the vegetables market to buy his favorite vegetables. It was a rainy that that day, so rode my electric very slowly in order not to fall down. I bought all the vegetables I wanted to buy and left there one hour later. I put on my raincoat and went on the motorized bicycle and rode towards my small house. When I got home, my best friend Vera, who had lived with us for four years, worked in an electric brushless motors factory, was logging onto the Internet; she had been thirty years old and had not gotten married and my dear son was doing his home work in his bedroom. | | 10:19 am |
At Hone after Work One Day I had no passion towards my job at all after I heard the earthshaking news of asking me to be the new comer’s assistant. I thought it was a typical example of using a talented person in an insignificant position, after I was an undergraduate student and had done editing job for two years in the company. I rode my bike electric bike and went home gloomily that afternoon. I was really not convinced when the general manager announced the news and had never expected that kind of result. I did not want to do anything when I got home and was terribly upset. I walked back and forth in the house until my boyfriend went home from his himax brushless motors factory. I planed to tell him the bad news, but I saw he pulled a long face and was neither happy the moment he entered the house, so I said nothing and began to cook. I asked him to ride the motorized bicycle and go to buy a bag of salt downstairs when I was cooking; he followed my words and still said nothing. | | 10:15 am |
My Son’s Birthday I began being busy with cooking after I came back from the vegetables market on my lovely son’s five years old birthday, while he was doing his home work in his bedroom and my best friend Vera was chatting with her customers, who wanted to buy brushless dc electric motors online. She had opened online store for several years and the business was not too bad. She lived with me since my son was one year old and it was her who had helped us a lot after that. When the food was ready, there was somebody knocked at the door. I went to open the door. It was a delivery person who rode an electric e bike and sent my son’s birthday cake to our house. After that person left, we began our dinner. We finished eating after a while and began to lit the candles and asked my son to make a wish. He told us that he would never go with his father, who was the boss of a bicycle electric motors factory and live with me forever. My eyes were filled with tears after I heard those words. | | 10:11 am |
My Best Male Friend After my son got to bed, my best friend Vera and I sat in the balcony and drank beer. She asked me whether I hated my son’s father. It was definitely that I hated him, because he had injured me so deeply and I swore that I would live on. The doorbell rang soon after. It was my best male friend, who had several himax brushless motors factory in the city. He liked my son and went to celebrate his birthday after an important meeting, but my son had gone to bed. I had always been considered him as my best friend and had no other thought. He said he had not had supper. I rode my electric bike and went to buy noodles in the supermarket downstairs. After I returned home, I cooked a bowl of egg noodles for him. When he was eating, he proposed to treat me and my son to eat in the restaurant the next day. I said I was going to do part time in a motorized bicycles shop and had no time. He was unhappy when he heard about it, saying that it was unnecessary for me to work so hard. | | 10:03 am |
After My Husband’s Disappearance After I stopped crying, I told my friend everything. She said that I should not have gotten angry with him when he was going to have a meeting with bldc motor manufacturers in the morning. I should get up early and cooked breakfast for him. I knew it was my fault and I had very regretted about it. I was willing to beg for his forgiveness as long as he came back to me. I confessed that I was in bad mood after I was demoted in the company and I only scolded him a few. He was too petty. I went on my power e bike and went home after a while. My husband’s telephone was forever powered off and he did not reply my short messages at all. I waited and waited and then he had disappeared into the thin air from that day on. I had never expected that was our end. I lived alone and never heard of his news afterwards. I still rode the motorized bicycle to work every day since them. If he still stayed in the city, I wished I could see him one day and apologize to him, saying that I was wrong. | | Tuesday, May 31st, 2011 | | 10:48 am |
Several DC motor power drive chips and their applications SA60 and LMD18245 are the United States launched Apex Inc. and NS-oriented small and medium-power DC brush motor full-bridge output circuit. They not only have a few external components in the case of the motor power driver, control and protection features such as common, but also have its own characteristics. SA60 is a PWM-type power output chips, power voltage circuit supply for the motor can be up to 80V, The maximum analog input voltage is 5V, PWM carrier frequency can go to 250kHz, the chip can also be connected with an external TTL compatible PWM type signal to synchronize the four-quadrant model in magnitude and direction. SA60 is mainly used in small DC motor, D class power amplifier, bearing incentives and other occasions. LMD18245 chip provide maximum 55V supply voltage for the motor driver, voltage of 12V, maximum sustained output current 3A, peak current up to 6A. | | 10:45 am |
Sensorless brushless motor design Sensorless brushless motor with simple structure e, reliable operation, easy maintenance and other a series of advantages, it has been widely used in industrial motor controls fields. Brushless DC motor and motor controllers have been the research focus of motor development. Brushless DC motor has small size and high efficiency. It has AC motor’s simple structure, reliable, easy maintenance advantages, but also equipped with has good speed like DC motor. is now widely used in industrial control fields. The control system designed to SP430F201 2 Microcontroller and TB6588FG integrated drive as the core hardware platform, the speed of the microprocessor acquisition TB6588FG feedback pulse, the use of digital potentiometers to adjust voltage for closed loop speed control. | | 10:42 am |
How to operate ac motor There are AC motor and DC brush motor drag in the electric drive program, for long time, because DC motor has a good starting performance, and it can smooth over a wide range of speed and cost, starting, braking and reversing, etc., so it is widely used in starting and speed requirements of high production machinery. DC Drive – straightly in dominate position in the field of variable speed drives. during the Target vehicle design, According to "not only to optimize, but also inherit the" principle, follows the set of mature programs, the use of imported high-performance gasoline generators and electric motors for the car body control system provides power, the voltage is 220VAC; using DC motors to provide power for the target vehicle ; using reversing contactors, DC converter DC motor speed adjustment means to achieve the electric drive problem. | | 10:40 am |
How to make shooting Training more safty In order to meet the needs of the shooting Training,china and foreign countries have developed several remote target vehicle. In recent years, meet the training requirements for military modernization, there have been some shooting range equipment, drag the target frame by the winch on the track or track-type running gear reciprocating movement target vehicle, But this target vehicle take DC motor or AC motor as power source, which need track and power lines, more facilities and complex maintenance, it is easy out of control in the dusty field. This design uses DC motor driver power control target vehicle, the structure is simple and it is easy to use, Target vehicle speed is adjustable, it does not need to control, so as to solve the long-troubled troops firing training of personnel security. From the economic analysis, the Department does not require the construction of hidden and do not need to set up power lines. | | 10:30 am |
How can we improve the efficiency of energy? DC motor position servo system is the key components of a natural gas engine electronic motor controls system. this paper adopt the Freescale company's MC9S12 MCU, combined with the motor armature current position feedback and testing, developed the digital PWM servo motor drivers. The driver takes full advantage of the embedded microcontroller resources to achieve the position, velocity and current three-loop control strategy. As China increasingly serious problem of energy shortage, in the practice improve the production of energy efficiency is the trend. However, most oil fields in western China is still exist a large number of associated gas venting phenomenon. Associated natural gas this can be treated by simple separation of direct-drive high-power gas engine, generator and drive into the power grid, thereby enhancing the comprehensive utilization of energy. | | 10:03 am |
DSP’s application in brushless motor TI introduced the 240XDSP as a brushless DC motor digital control core, consisting of servo system requires very little system components. TMS320F240X is high-performance 16-bit digital signal processor (DSP) U.S.TI launched, which is designed for digital motors controls, The DSP includes a fixed-point DSP core and a series of micro-controller peripheral circuits, to put digital signal processing and computing capability for efficient control of the motor in one, it can replace analog devices in software to easily modify the control strategy revision control parameters, both for fault detection, self diagnostic and communication host computer functions. TMS320LF2407A kernel is TMS320C2XX, the internal use motor controller, under the 20MHz clock frequency, the instruction cycle is only 50ns, and most of all instructions can be completed in one instruction cycle. |
[ << Previous 20 ]
|