News

  • Do you know why EPA estimates driving range in city is more than in highway for EV, while MPG of gasoline auto is less in city than in highway?

    It is a very interesting topic. You will know the reason, after understanding  the knowledge about kinetic energy, chemical energy, thermodynamics, electrical energy. Basically there is a nonzero threshold  operation in gasoline auto, however we can have zero output for Electric Vehicle during static motion in city to save energy. Also DC motor efficiency in EV is over 80 % and recover energy for the farther distance via chargeable device during running in city, while gasoline auto provides 40 % kinetic energy ultimately in highway. In city, gasoline auto gets lower energy efficient due to slower speed and have nonzero...

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  • Uphill ebike ride exhaust most kinetic energy

    From physics calculation, almost half motion energy is killed during 6% uphill e-bike riding at 15 mph. Although in theory, kinetic energy equaled to half mass and velocity squared, can be transferred to the equivalent potential energy (mass x gravitational acceleration x height), but energy consumption on flat road is some of kinetic energy only in ebike motion. It depends on tire, mechanical loss, air resistance relating to moving velocity, riding manner. On uphill path, a lot of kinetic energy will be converted to equivalent gravitational potential, and be wasted completely. It is better to ride light-weight ebike while go uphill...

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  • How feeding baby as ebike loop control

    Normally, babies may cue mom by crying, putting fingers in his or her mouth, or making sucking noises, when they seem hungry. If you're formula-feeding, you can easily monitor if your baby is getting enough to eat, but it should be a little trickier, while breastfeeding. Mom including her thinking helps newborn to complete total closed loop feeding work being similar to real PAS in ebike. Gradually, babies can have wonderful eating or sucking via their intelligence in brains after growing, then done each feeding cycle by themselves from staring hungry signal to sucking finish. Speed cadence PAS ebike performs simple open loop function...

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  • Why rider can't easily go uphill via so-called PAS on ebike

    You can comfortably ride an intelligent closed loop Pedal Assist System regarding pedal torque, but it is hard to get power smoothly for riding  on a so-called cadence sensor PAS Ebike. The DC motor on electric bike outputs power for riding by means of its original design performance like AC motor which is always same as full duty frequency as power supply plant, together with operating duty cycles provided in different ways described below. 1. Very smart closed loop controller has the appropriate duty signal for DC motor based on calculated torque requirement relating to sensing data. Therefore  you will feel very smoothly to...

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  • Additional feedforward control lets safety driving along mountain road

    While driving on I-5 between Redding and Eugene on sunny day, it is very beautiful scenery.  All should drive carefully  along this mountain road at raining night, although driving is a simple action as closed loop control. If we follow a commercial truck 1000 feet away to drive, it is easier to go through as we have his feedforward skill. The truck and local drivers are familiar with  this road, and have feed-forward control with basic closed loop on their minds around this I-5 terrains. Surely they can drive smoothly during raining night. We also have this feedforward concept to easily drive through...

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  • Could be Autopilot in electric bicycle?

    Definitely we can have cruise control in throttling operation like vehicle, but there will be never self-driving two-wheeled motorcycle, E-bike to be Autopilot. Appropriate system including adequate motor or engine power output, reasonable characteristic performance between torque and speed will let rider to target acceptable cruise speed in simple throttling operation. It is easy to understand the process  data like speed and its regulating ebike motor current, motorcycle gasoline flow play major roles together. While riding real PAS e-bike,  the pedaling force and motor output power together work well  through intelligent controller. Thus torque, horsepower, and good brain controller form a...

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  • Is airplane turbulence dangerous?

    It is absolutely safety  of the aircraft. The engineers know planes work OK, no matter how severe the turbulence is. However passengers worry the plane crash during the frequent turbulence flight. According to Bernoulli's principle and automation technology, we can stabilize the air plane flying through a turbulence zone  via costly devices. The lifting force derived by differential pressure relating to velocity and air density plays the major role. Actually it is real high technology to detect air density under airplane and actuate the wing to modulate the floating area, then passengers feels quiet through thunderclouds, thermal currents, and clear...

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  • Not only safety but also good performance in Panasonic NNP Li-ion battery

    Located at the far left side of Periodic Table of Elements, the lightest Lithium is very good material for battery, but stability issue exists. Similar to chip fabricated in dust-free foundry, at high class humidity-free factory  Panasonic make the safest battery via Nickel oxide based New Platform which equals to LiNiCoAlO2/Carbon Safety, high power density & durability are features in Li-ion battery from Panasonic High Capacity Technology          

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  • Not to worry, 10 years ago Panasonic had produced safe Li-ion battery

    The lightest alkali metal, high reactivity Lithium can be used for very safe rechargeable green power source, although its enthalpy is only twentieth of unrecyclable gasoline. As we know, temperature is major factor about chemical reaction in kinetic and collision theory. Fire happens in chemical inside battery and gas tank while uncontrollable temperature rising due to heat. In 2006 Heat Resistance Layer Technology was developed by Panasonic (Matsushida) according to  http://news.panasonic.com/global/press/data/en061218-2/en061218-2.html It will prevent overheat to cause fire in battery even if a short-circuit occurs.

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  • Thanks to our dealers!

    They said there is no need to improve PAS on Apollo, Artemis, Coeus, Selene, it's perfect. We took two years to develop this USA patented Real PAS, then dealers know ours are the best among the brands at their stores.  It is very comfortable and smooth feeling!

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