Citaat:
Shopping Center Genk anno 2015: https://nl.chargemap.com/points/deta...opping-center- de E-parkeerplaatsen wachten... Aja Mambo de voetpaden lopen achter de laadzuilen hé: Een laadstraat voor E-voertuigen aan 2 kanten: foto´s uit: http://www.davidjkent-writer.com/tag/scandinavia/ |
Citaat:
Om wat zin in je verklaring mee te geven zou ik er ook de snelheid bij vernoemen. Dat maakt het ook mogelijk om wat dingen na rekenen. CW is namelijk een getal dat op zich niks van de wagen zelf zegt. Een kleine formule: F = 0,5 x ρ x v² x Cw x A Hierin is A het frontale oppervlak van de wagen en v de snelheid in het kwadraat. Als je dus te maken hebt met een grote gezinswagen dan is de luchtweerstand groter. Ik zal vanavond eens een Citroen 2PK vergelijken met een moderne Tesla. Frontaal oppervlak en CW waarde. Tot welke snelheid is de 2 PK beter dan de Tesla S85? Wie wil een gokje wagen? |
Citaat:
En de Tesla S heeft CW = 0,24, wat hij aan A heeft kan je opzoeken. :-D Ik zal je een hint geven waar je al de geteste cijfers vindt uit het windkanaal: http://www.caranddriver.com/features...omparison-test https://www.teslamotors.com/sites/de...n-the-road.pdf waar ze vijf auto´s vergelijken... :-D ook op YT: https://www.youtube.com/watch?v=SNPTXrj_vmw Je zit dus weer wat naast de pot te lullen over iets dat ik nergens geschreven heb. Citaat:
Drag Queens: Aerodynamics Compared Five slippery cars enter a wind tunnel; one slinks out a winner. Jun 2014 Our winner here will be the car with the lowest drag area, which is the product of the shape’s frontal area and its drag *coefficient and the true measure of a car’s wind-cheating ability [see “A Somewhat Long-Winded Glossary” below]. With that, we humbly present our first ever aero comparo. A SOMEWHAT LONG-WINDED GLOSSARY Aerodynamic Horsepower: The power required to drive a vehicle through the atmosphere (not including driveline and tire-rolling losses). It increases with the cube of velocity, so aero power at 100 mph is 2.9 times the power requirement at 70 mph. Drag Area: The product of the drag coefficient and frontal area is the best measure of any car’s aero performance because it’s directly proportional to the horizontal force measured in a wind tunnel and experienced on the road. Drag Coefficient (CD): A dimensionless parameter used to quantify aerodynamic efficiency in the horizontal (drag) plane. Frontal Area: The largest horizontal view of a car. We used a 200-mm camera lens positioned 150 feet from the vehicle to take a digital photo, which we analyzed using Siemens Solid Edge CAD software. Lift: Air flowing over and under the car and through the grille can diminish wheel loading and, in extreme cases, deteriorate handling. Air dams and spoilers are effective countermeasures. Wind Resistance (Drag): A force proportional to the drag area, it increases with the square of the vehicle speed. Streamlines: Wind-tunnel operators add small quantities of smoke to the airflow to reveal how the wind moves around, under, or through the test vehicle. Directe link alle details + cijfers van de 5 geteste wagens: http://www.caranddriver.com/features...e-specs-page-7 VEHICLE 2014 Chevrolet Volt 2014 Mercedes- Benz CLA250 2012 Nissan Leaf SL 2012 Tesla Model S P85 2014 Toyota Prius BASE PRICE $34,995 $30,825 $38,100 $93,390 $29,245 PRICE AS TESTED $35,995 $35,855 $38,290 $100,520 $33,408 C/D WIND TUNNEL TEST RESULTS DRAG COEFFICIENT 0.28 0.30 0.32 0.24 0.26 FRONTAL AREA 23.7 square feet 23.2 square feet 24.5 square feet 25.2 square feet 23.9 square feet DRAG AREA (CD X FRONTAL AREA) 6.7 square feet 7.0 square feet 7.8 square feet 6.2 square feet 6.2 square feet DRAG FORCE @ 70 MPH 84 pounds 88 pounds 97 pounds 77 pounds 78 pounds AERO POWER @ 70 MPH 16 hp 16 hp 18 hp 14 hp 14 hp AERO POWER @ 100 MPH 45 hp 48 hp 53 hp 42 hp 42 hp FRONT-AXLE LIFT @ 70 MPH -15 pounds 46 pounds -12 pounds 23 pounds -4 pounds REAR-AXLE LIFT @ 70 MPH 26 pounds 44 pounds 11 pounds 17 pounds 17 pounds mmmmh 2 CV ? :roll::roll: |
In de meeste steden is er gewoon geen ruimte voor laadpalen voor iedere E wagen.
Je ziet het al in Londen. De verlengkabels liggen verspreid over de voetpaden. |
Citaat:
En het gokje...doe je niet mee? |
Citaat:
De Citroen 2PK heeft een frontaal oppervlak van 1,66 m² De Tesla heeft een CW waarde van 0,24 De Tesla heeft een frontaal oppervlak van 2,34108 m² |
Citaat:
|
Citaat:
|
Citaat:
|
Citaat:
Citaat:
Alle cijfers van de Tesla S qua windkanaalmetingen heb ik al gegeven, wat begrijp je bvb niet aan Cw x A = 6,2 square feet en nog andere PK-waardes naargelang snelheden van 70 mph en 100 mph ? VEHICLE 2014 Chevrolet Volt 2014 Mercedes-Benz CLA250 2012 Nissan Leaf SL 2012 Tesla Model S P85 2014 Toyota Prius BASE PRICE $34,995 $30,825 $38,100 $93,390 $29,245 PRICE AS TESTED $35,995 $35,855 $38,290 $100,520 $33,408 C/D WIND TUNNEL TEST RESULTS DRAG COEFFICIENT 0.28 0.30 0.32 0.24 0.26 FRONTAL AREA 23.7 square feet 23.2 square feet 24.5 square feet 25.2 square feet 23.9 square feet DRAG AREA (CD X FRONTAL AREA) 6.7 square feet 7.0 square feet 7.8 square feet 6.2 square feet 6.2 square feet DRAG FORCE @ 70 MPH 84 pounds 88 pounds 97 pounds 77 pounds 78 pounds AERO POWER @ 70 MPH 16 hp 16 hp 18 hp 14 hp 14 hp AERO POWER @ 100 MPH 45 hp 48 hp 53 hp 42 hp 42 hp FRONT-AXLE LIFT @ 70 MPH -15 pounds 46 pounds -12 pounds 23 pounds -4 pounds REAR-AXLE LIFT @ 70 MPH 26 pounds 44 pounds 11 pounds 17 pounds 17 pounds De Tesla S wint héél nipt voor de Prius, Cw x A is idem en het verschil is verder achter de komma te zoeken maar zou mss in een ander windkanaal net andersom kunnen zijn: Citaat:
|
Citaat:
|
Citaat:
Al dat gefulmineer over elektrische wagens is een totale maat voor niks. |
Citaat:
Gelieve on topic te blijven dus. Ik had het in topicstarter en post 2 over het Tesla Model 3 en ook zijn vermoedelijke Cw-waarde en NIETS anders uit de completere formule en andere cijfers of talrijke andere parameters, heb je die zin begrepen? Heb je de links over het model 3 gelezen daar gaat het enkel over de Cw-waarde. Lees post 1 en 2 nog eens rustig door anders, kun je dat ? ;-) Ik wacht anders op je lijstje van bestaande auto´s die een betere Cw x A waarde hebben als de Tesla S. :-) |
Citaat:
|
Real world E-cars
Zelfs fool websites zijn zich niet meer zeker LOL
http://www.fool.com/investing/genera...realistic.aspx Tesla Motors Inc.'s Model 3 Ambitions May Be More Realistic Than You Think With the help of Model 3, Tesla wants to sell 500,000 vehicles per year. But is there evidence to support this bullish vision? Tesla Motors' (NASDAQ:TSLA) CEO Elon Musk believes that with the help of its planned more-affordable fully electric vehicle and its upcoming Gigafactory lithium-ion vehicle-battery production plant, Tesla can sell 500,000 cars per year by 2020. But many investors have flagged his vision as a pipe dream. After all, electric vehicles, or EVs, are only a fraction of the market, so there's no evidence that demand for a lower-cost Tesla vehicle would be sufficient to drive such significant sales -- right? Even more, won't well-capitalized, highly experienced competitors stomp all over Tesla when they join the EV race? For answers to these questions, buckle up for an in-depth look at the company's record so far and its future place in the EV industry. Tesla is betting big on Model 3 In August 2006, just before the recession, Musk published his "secret master plan" for Tesla. In his own words, Musk summarized the plan like this: # Build sports car # Use that money to build an affordable car # Use that money to build an even more affordable car # Importantly, Musk noted each subsequent decrease in price should drive higher sales volumes. "The strategy of Tesla is to enter at the high end of the market, where customers are prepared to pay a premium, and then drive [down-market] as fast as possible to higher unit volume and lower prices with each successive model," Musk explained. For the most part, Tesla has stuck to this plan. The Tesla Roadster became available in 2008. Priced above $100,000, the Roadster was an expensive two-door demonstration of what electric cars can do, and it helped fund the development of the company's next vehicle: the Model S. The four-door sedan was aimed at proving electric cars can not only compete with, but be better than comparably priced gas-powered cars. If the vehicle's accolades to date are the measure of whether Tesla achieved this, it certainly did. But the Model S wasn't exactly affordable. With deliveries beginning in 2012, Model S initially had a starting price of about $60,000 (until Tesla said insufficient demand for its planned 40 kWh battery pack led the company to stop production of the entry-level battery, leaving the lowest-priced Model S at $69,900 for the 60 kWh version). Tesla is now moving to the third stage of its plan. This "even more affordable car" is dubbed the Model 3. With it, Tesla wants to finally bring a compelling fully electric car to the masses. As Tesla continues to sell Model S and preps its Model X sport utility vehicle for a production ramp-up, the company is already laying the groundwork for Model 3. Aiming to price the vehicle at $35,000, Tesla hopes the car will appeal to hundreds of thousands of consumers. With plans to launch the vehicle in 2017, the car is one of the main reasons behind Tesla's under-construction $5 billion Gigafactory, which is set to begin electric cell production next year. Given Tesla's nearly $34 billion market capitalization, and with the company currently selling about 10,000 vehicles per quarter, investors are clearly depending on the Model 3 to be a major success. Failing to sell hundreds of thousands of cars by the end of the decade and millions by 2025 would make Tesla stock grossly overvalued at today's prices. This raises the question: Is Tesla's vision for selling 500,000 vehicles per year by 2020 only a pipe dream? Or does a close look reveal it might be more realistic than critics suggest? The path to 500,000 Piecing together commentary from management, investors can get some idea of how Tesla might go about reaching 500,000 vehicles per year. It will mostly depend on Model 3. Sure, sales of Tesla's premium-priced vehicles look set to grow beyond 2014 levels. Not only does Tesla aim to sell 50,000 Model S units this year, but Musk believes demand for its Model X SUV will rival demand for Model S. In other words, it's possible as many as 100,000 of these 500,000 in deliveries could come from sales of Tesla's luxury vehicles. But this still leaves about 400,000 vehicles before Tesla arrives at 500,000 in annual sales. .... very lang... :-) Tesla Gigafactory real world |
Citaat:
Dat is een gemiddeld verbruik van 10.8 a 12.4 kWh/100 km en die doet het dus een pak beter dan een P85 (16.7 kWh/100 km)...luchtweerstand alleen vertelt niet alles over verbruik. |
Citaat:
Citaat:
|
Citaat:
Daar zal die 2PK de Tesla met gemak achter zich laten. |
Citaat:
Past er in de 2CV ook een accupack van 800 kg ? :roll: Stop nu eens met lullen en trollen hé. Is dat te moeilijk voor jou ? |
Citaat:
https://www.youtube.com/watch?v=Z5W4LJ5zL9g |
Alle tijden zijn GMT +1. Het is nu 23:48. |
Forumsoftware: vBulletin®
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Content copyright ©2002 - 2020, Politics.be