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neptronix
Portland, OR
2 wheeled Menace.
Interests: Electric everything, mostly bicycles..
Recent Activity
That's pretty damned impressive. I wonder what the car would be like to hypermile.
I have a Yaris IA with the DI 1.5L engine and it is a dream to pull 50-60mpg out of it regularly, by driving 5mph under the speed limit and other basic hypermiler tricks.
Some of these newer compact cars are exceptional and begin to approach hybrid like fuel economies when used in suburban or mostly highway type driving. I initially had my eyes on a 2019 Honda Insight, but beat the highway MPG of the insight with a Yaris, so..
2020 Hyundai Accent improves by 4 mpg on most models with switch to dual port injection engine and IVT
The 2020 Hyundai Accent features a new Smartstream G1.6 Dual Port Injection (DPI) engine and a Smartstream Intelligent Variable Transmission (IVT). These changes increase Accent’s EPA estimated fuel economy to 33 mpg city, 41 highway, 36 combined, up considerably from the 28 city, 38 highway, 3...
Reducing 1% of global CO2 from a change in materials is simply amazing. It will also reduce loads of other pollutants in the process. Unless the material is derived from nuclear waste or something..
Is it really around a million dollars of fuel to send a ship back and forth? That's shocking..
Researchers find bio-inspired high-tech surfaces on hulls could greatly reduce drag and CO2 emissions of ships; up to 1% of global CO2
If ship hulls were coated with special bo-inspired high-tech air trapping materials, up to 1% of global CO2 emissions could be avoided according to a new study by researchers from the University of Bonn together with colleagues from St. Augustin and Rostock. According to the study, ships could ...
Super impressive! unless there are some hitches here, you can say bye-bye to induction motors and hello to 98-99% efficient permanent magnet motors.
Thanks for the note, Mike!
Argonne’s HyMag technology boosts usable magnetic flux density of permanent magnets by 10-30%
Researchers at the US Department of Energy’s (DOE) Argonne National Laboratory (ANL) have developed a new magnet technology that could benefit virtually any technology that draws power from electric motors or generates power from generators. HyMag significantly increases the usable magnetic f...
Yup.. i live in salt lake city, Utah.. pollution central.. can't even think when we're in the red.. glad to see that there's at least some acknowledgement of the issue.
NUS study finds correlation between PM2.5 pollution and employee productivity
A study by researchers from the National University of Singapore Department of Economics (NUS Economics) has found a correlation between pollution and productivity of employees. The researchers, led by Associate Professor Alberto Salvo, gathered information from various factories in China and d...
Yoatmon seems to be confused.
Infinitum's website claims an efficiency of 97%-ish. Not bad at all. But not as groundbreaking as they're making it sound. ( emrax makes a ~97% eff motor )
https://www.infinitumelectric.com/technology-1
Infinitum Electric closes $1.8M Series A to bring new electric motor technology to market; increasing R&D for EV applications
Infinitum Electric, developer of ultra high-efficiency, durable, lightweight and cost-effective electric motors built with patented printed circuit board (PCB) stator technology and integrated control systems, has closed a $1.8-million Series A round of financing, led by Cottonwood Technology F...
Leave no hydrocarbon unburned ;)
Study reports non-US global shale gas recoverable resources of 5,760 Tcf; global shale gas boosts total recoverable natural gas resources by 40%
Map of 48 major shale gas basins in 32 countries. Source: EIA. Click to enlarge. Initial assessments of 48 shale gas basins containing almost 70 shale gas formations in 32 countries suggest that shale gas resources, which have recently provided a major boost to US natural gas production, are...
Gee, if i had solar panels and wind generators on my roof i'd just be turning that electricity into..... electricity! forget the intermediate H2 step.
Battery tech continues to improve and energy density is going up year by year. I'll place my bets on EV...
Toyota targeting thermal efficiency of more than 45% for next-generation gasoline engines for hybrids
Among the R&D projects Toyota Motor is exploring to further lower fuel consumption and emissions are two concepts on a pathway to deliver gasoline engines featuring more than 45% thermal efficiency for application in its future hybrid vehicles, according to Koichi Nakata of Toyota in his present...
Someone mentioned the range of a nissan leaf dropping to 19 miles in winter temps..
That seems unlikely, all winter tests i've seen show that the battery range cut is more like 1/2..
Anyhow the fault is the Leaf's battery pack. It is not designed to heat itself; which is extremely short sighted in my opinion. A car's battery pack can be heated with less than 1000 watts; less than a tenth of the energy the car uses cruising on a flat, to get 50% more battery power... !!
Why Nissan left this feature out is absolutely beyond me. Perhaps rushing the car to market to get a tax credit ?
e-Traction in cold weather in-wheel direct drive bus test; automotive in-wheel product in prototype stage
In-wheel direct drive motor company e-Traction Europe BV (earlier post) has undertaken a new development projection in cooperation with Hybricon SE to equip two Volvo 7700 city buses with a modified e-Traction system for cold-weather testing. At this time in spring in Sweden, temperatures are st...
That means they can use a smaller alternator, or less alternator load..
That means you get more power out of the engine, and the pump would also last longer.
You'd think this would already be implemented by now. hm.
Continental to begin series production of fuel pump with integrated electronics; reduced consumption
Demand regulated fuel pump with integrated electronic reduces fuel consumption. Click to enlarge. Continental will begin series production of its demand-regulated fuel pump technology with integrated electronics. From 2013, a major European vehicle manufacturer will be installing this techno...
Lol.. my electric bicycle has more KwH than this.
Can't be a very large or expensive battery.
Characteristics of Hitachi’s 3rd-gen Li-ion power cell used in GM’s eAssist; 4th gen power cells and PHEV cells coming
Input and output power characteristics of 2nd and 3rd generations. Source: Hitachi Review. Click to enlarge. GM’s eAssist light electrification system—currently offered as the base powertrain in the full-sized 2012 Buick LaCrosse and offered on the 2012 Buick Regal—uses a 115V, 0.5 kWh lithi...
To those wondering why a CVT would be a good idea..
Go on google images and search for 'electric motor efficiency curve'.
You will quickly find that efficiency at lower RPMs is terrible, and on some motors, higher RPMs also.
In addition to that, torque dropoff after the middle of the RPM range becomes terrible as well.
A CVT transmission would keep a motor at an ideal RPM, in order to maximize efficiency at low and high speeds.
It would also allow a higher top speed from a smaller motor, as torque dropoff can be managed by spinning the motor at mid-RPM.
The gain in efficiency would mean that less amp hours would be used to do the same job.
Yes, fallbrook needs to figure out how to get regen working. But this is a big deal as ordinary transmissions often can't handle this kind of power..
Fallbrook and ASL to develop EV transmission drives based on NuVinci CVP technology in Shanghai
Fallbrook Technologies (Fallbrook) along with global automotive consulting and technology development firm Advanced Strategic Leadership (ASL) Partners announced that China’s Shanghai (Yangpu District) government approved a proposal for an Electric Vehicle Design Center to develop prototype tran...
Way cool. I believe a transmission is one of those missing links to make an EV more affordable and efficient.
If they can cut the power requirements by 20% with a CVT transmission, that means smaller motor, less batteries, smaller controller, all to do the same job... that means cheaper car..
Good on fallbrook for taking the next logical step. The future looks bright for them.
Fallbrook and ASL to develop EV transmission drives based on NuVinci CVP technology in Shanghai
Fallbrook Technologies (Fallbrook) along with global automotive consulting and technology development firm Advanced Strategic Leadership (ASL) Partners announced that China’s Shanghai (Yangpu District) government approved a proposal for an Electric Vehicle Design Center to develop prototype tran...
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