Connect with us

News

Electric trucks from large to small vital to Tesla’s Master Plan

Published

on

https://www.facebook.com/CarsByKris/?fref=ts
Source: Truck Trend via Kris Horton (www.carsbykris.com)

It all goes back to Elon Musk’s original secret Master Plan from 2006, when the billionaire entrepreneur issued his famous vision of the future: “[T]he overarching purpose of Tesla Motors (and the reason I am funding the company) is to help expedite the move from a mine-and-burn hydrocarbon economy towards a solar electric economy, which I believe to be the primary, but not exclusive, sustainable solution.”

Musk made an executive decision right from the beginning to target customers whose opinions influence others by building premium electric cars that would make people sit up and take notice. Until Tesla came along, electric cars were little more than glorified golf carts. But if Tesla is going to make significant progress toward its ultimate goal, it is going to have to make electric trucks as well as passenger cars. Trucks are responsible for about 50% of all emissions created by the transportation sector according to the EPA. It’s no wonder Musk’s follow up plan calls for a zero emissions Tesla targeted at the mid to heavy duty truck segment.

The Tesla Plan

“In addition to consumer vehicles, there are two other types of electric vehicle needed: heavy-duty trucks and high passenger-density urban transport. Both are in the early stages of development at Tesla and should be ready for unveiling next year,” outlines Musk in his Master Plan Part Deux.

Aaron Turpen previously gave us an excellent analysis of what characteristics a Tesla pickup would need to have in order to be successful. He set out in detail what Tesla would need to do to build such a truck.

  • V8-like performance including roughly 400 hp and 380 lb-ft
  • Extended and four-door cab offerings
  • Cargo bed size of 5.5 feet with option for 7 feet
  • Towing capacity of about 10,000 pounds
  • Payload capacity of 1/2 ton to 3,000 pounds
  • 4×4 capability
  • Driving range, under load, of at least 150 miles
  • Conventional styling and appeal

How is Tesla going to make batteries with the energy and power needed to move such heavy vehicles? The Powerwall may offer clues. Just one year after it was introduced, Tesla brought its second generation version to market with roughly double the capacity of the original. Tesla doesn’t reveal very much about its ongoing battery research programs, other than to say that improvements of between 5 and 7 percent a year are anticipated as it ramps up production at the Gigafactory.

One assumption is that batteries for trucks will be significantly different from those used on its passenger cars, with more focus on energy and less focus on power. While a Tesla pickup that breaks the 3 second 0-60 barrier would be very cool, that sort of acceleration would have little relevance to how a truck gets used in daily driving.

When it comes to trucks that haul freight, it’s possible that the company has some sort of battery swapping plan in mind at truck stops along major transportation routes. Another approach would be to simply swap tractors at designated service areas much the way Formula E drivers swap cars during a race. Tesla could own the trucks and lease them to freight companies. The idea is as old as the Pony Express.

Advertisement
-

What About The Competition?

While Tesla is busy planning its truck strategy, other companies are chasing the same low emissions dream. Most of them rely on some form of range extender engine to build a truck that has low emissions but is cost competitive. The most promising of those ventures may be from Workhorse, which claims it will have a full size plug-in hybrid pickup truck with dual motors on the market by 2018. It uses the two cylinder range extender engine from the BMW i3 REx to provide electricity to the battery when needed. A rendering of the truck by Australia’s Motoring shows a truck that is purposeful rather than svelte in its design.

Workhorse pickup truck

Delivery and cargo vans are another target market. Four large cities — Mexico City, Paris, Madrid, and Athens — announced their intention to ban all diesel powered vehicles from their streets by 2025. Many of the medium duty trucks used to deliver food and consumer goods to city dwellers are powered by diesel engines, especially in Europe.

Deutsche Post, known globally as DHL, is one of the largest parcel delivery companies in the world. It is working hard to reduce its carbon footprint but could not find an all electric van suitable for its needs. So it built its own. “We designed it as a tool. So the fit and finish does not need to be as good as in a passenger car,” Win Neidlinger, director of business development at Deutsche Post tells Fortune. “It did not cost billions to develop and produce. You will not believe how cheap it is to make.” The company now plans to become a manufacturer and start selling the vans, which it calls StreetScooters, to customers in 2017.

DHL electric truck

Photo credit: Deutsche Post

UPS is also in the delivery business and is a world leader in testing alternative fuels and alternative powertrains in its trucks. It has invested more than $750 million in alternative fuel and advanced technology vehicles since 2009. UPS now has 7,700 low emission vehicles in its “rolling laboratory” test fleet and is evaluating vehicles that run on natural gas, renewable natural gas, and propane according to Electric Cars Report.

It also is using electric powertrains in some of its vehicles. A version of the Workhorse plug-in hybrid range extender system is being tested in several of its delivery vans. It is also thinking small when it comes to what is known in the industry as the “last mile” conundrum. How do companies like UPS create nimble, zero emissions vehicles that can access congested urban areas? One solution being tried in Hamburg, Germany and Portland, Oregon is a hybrid electric tricycle called the eBike. It has a battery and electric motor and can move using pedal power, electric power, or a combination of both.

UPS eBike

Photo credit: UPS

Some of the biggest polluters are garbage and trash hauling trucks. Because the stop and start hundreds of times a day, their diesel engines are constant spewing toxic pollutants into the atmosphere. While their total numbers are small, they discharge a disproportionate amount of emissions to the atmosphere. Taming the emissions from beasts would be an important step forward.

Ian Wright, a Tesla co-founder and former board member, thinks he has a solution. His company, Wrightspeed, builds heavy trucks powered solely by electricity but with a twist. Wright and his engineering staff have invented a small natural gas powered turbine that acts as a range extender engine. He claims his turbine operates so cleanly, it does not require a catalytic converter to meet California’s strict tailpipe emissions laws.

Salt Lake City start-up Nikola Motors recently revealed its idea for a 1000 HP low emissions electric truck called the Nikola One. Sleek and futuristic, it relies on battery power to turn its six electric motors but also has an onboard hydrogen fuel cell that is says will give the tractor  a range of 800 to 1000 miles. The company says it has over a billion dollars worth of reservations in hand. While it did present a full size prototype at the reveal, many are taking a wait and see attitude toward Nikola Motors, which has no factory at the present time but claims it will begin production in 2018.

Advertisement
-

Summary

Trucks will play an important role in reducing global emissions from the transportation sector. A recent report from Navigant Research predicts annual sales of electric trucks — including hybrids and plug-in hybrids — will increase by a factor of ten over the next decade. From 31,000 worldwide today, Navigant says more than 332,000 electric trucks will be sold annually by 2026. That’s a big market for manufacturers to target.

Tesla has refused to consider any sort of range extender device for its cars, but solving the problems of building low emissions trucks for delivering freight and cargo across long distances may make such things a necessity. The need is great and the time is short. If hybrid trucks are what are needed, even as a stop gap measure while battery technology catches up with energy and cost constraints, that would be important for a world struggling to limit carbon emissions.

"I write about technology and the coming zero emissions revolution."

Advertisement
Comments

Elon Musk

Why Tesla Roadster unveiling delay might have nothing to do with it flying

Published

on

tesla roadster elon musk flying
Credit: Grok

Tesla announced on Monday that the Roadster event scheduled for today would be postponed due to the need for it to be held outside.

Less than 24 hours later, CEO Elon Musk broadened that by stating it was due to high winds, immediately sending everyone into a frenzy over the Roadster’s potential ability to fly.

And realistically, it could definitely have to do with it flying, hovering, or hopping; whatever Tesla has in mind for this demonstration could not be impacted by wind. However, it might have nothing to do with the vehicle flying whatsoever, and instead could be a simple precaution, as the Roadster is a very unique vehicle with some already official specs that are just mind-blowing.

Tesla will very, very likely be showcasing both the acceleration rate and potentially even a top speed demo at the event in Waco. Both of these demonstrations, performed with a vehicle that has such incredibly fast metrics, could easily be impacted by wind as well.

Tesla Roadster event requires restricted airspace, and the FAA obliges

Top Speed Demo

At high speeds, aerodynamic forces are already overwhelmingly present. A crosswind or sudden gust adds a layer of sideways force that the tires must counter with slip angle. On a short demo course, that force can shove the car off the intended line, especially in a light car with a low frontal area and little mass to resist the push.

Advertisement
-

Electric cars, due to their battery packs, have an advantage of an extremely low center of gravity, giving them extra stability. However, the speeds at which the Roadster could travel at the demo could spell some issues if crosswinds are present.

Gusts are worse than a steady wind because the load changes faster than a driver can smoothly correct. That shows up as weaving or a late correction. Headwinds and tailwinds can also spell disaster. Headwinds cut a measured top speed but raise the power needed to get there or maintain it. Meanwhile, a tailwind can inflate the top speed, and downforce issues could become more noticeable.

Wind also loads the body unevenly. A low car can feel light on the upwind side or see a sudden change in downforce if the gust hits a wing or diffuser at an angle. Tire temperature and pressure might stay near a normal level, but lateral grip can be lost as the vehicle is spent fighting the wind.

Acceleration Demo

Launch and 0-60 MPH runs are shorter, so the car spends less time exposed to forces that could cause things to go awry. However, the first second is very sensitive, as a crosswind at launch could yaw the car before speed builds and prior to aerodynamic impact being too great. The driver will be required to correct traction control or manage how much the wheels are spinning, which will likely be corrected automatically by some sort of traction control system within the Roadster (we are fairly certain Tesla will implement something brilliant with it).

These things could cause an unstable run.

A headwind would increase drag as speed rises, while a tailwind would do the opposite. Meanwhile, surface effects, like wind-driven dust, light debris, or even rain, could reduce grip at the exact moment the tires are asked for peak longitudinal force. Standing water plus a crosswind is a common reason an acceleration attempt might be scrapped.

Advertisement
-

Flying or Not

No matter what Tesla has in store for the Roadster, waiting for ideal conditions is a great idea. People who follow and support the company, along with the engineers involved in the Roadster program, have been waiting nine years since the last unveiling for this moment. Everything should be ideal.

Some speculate that it’s just not ready, and that’s ridiculous. Why would Tesla even schedule the event — albeit prematurely — after nine years if it was not ready? Why would they jump the gun now?

We were all excited for today, but it truly is the most ideal thing in the world to wait two more weeks so everything, including the weather, can be perfect. The delay is simply worth it. But Tesla, seriously, make this the last one.

Continue Reading

Elon Musk

SpaceX nails “Lucky 13” astronaut launch, leaning into Tesla tradition and superstition

SpaceX launched Crew-13 astronauts to the ISS Thursday, setting up a record fast Dragon docking.

Published

on

By

Crew Dragon sits atop Falcon 9 at sunrise on Cape Canaveral's pad 40, less than a day before four astronauts are set to launch to the ISS. (Credit: SpaceX)

SpaceX launched NASA’s Crew-13 mission to the International Space Station on Thursday morning, getting four astronauts to orbit despite a forecast of thunderstorms and gusty winds that had threatened to push the flight to Friday.

Falcon 9 lifted off from Space Launch Complex 40 at Cape Canaveral Space Force Station at 11:10 a.m. ET carrying Dragon Grace, NASA confirmed. On board are NASA commander Jessica Watkins, NASA pilot Luke Delaney, Canadian Space Agency astronaut Joshua Kutryk and Roscosmos cosmonaut Sergey Teteryatnikov. The first stage booster, B1101, landed at Landing Zone 40 beside the pad on its third flight after previously supporting Crew-12 and a Starlink mission.

It was the first spaceflight for Delaney, Kutryk and Teteryatnikov. Watkins, who flew on Crew-4 in 2022, became the first NASA astronaut to launch aboard a Crew Dragon twice.

Before launch, the crew rode to the pad in Teslas, a tradition on NASA’s SpaceX crew flights since 2020. This time the cars carried specialty plates reading “Lucky 13.” Watkins said the mission patch leans into the number on purpose, as a nod to Apollo 13 and the resilience of that crew.

Advertisement
-

Grace is now on a short trip to the station. Docking at the forward port of the Harmony module is scheduled for about 7 p.m. ET, roughly 7 hours and 50 minutes after liftoff, which Space.com notes would be the fastest Crew Dragon transit to the ISS yet. Most Dragon flights take around 15 to 24 hours to catch the station. Hatch opening is planned for 8:25 p.m. ET.

The launch came more than two weeks later than originally planned. An oxidizer leak was found in Grace’s propulsion system in August, and NASA and SpaceX added time for tests. That pushed back the return of Crew-12, which has been aboard the station since February and is now set to splash down off Southern California next week. Crew-13 is expected to stay about six months.

SpaceX rescue mission for stranded ISS astronauts nears end — Here’s when they’ll return home

SpaceX already holds NASA orders for crew rotations through Crew-17, while Boeing is preparing an uncrewed Starliner flight to the station as early as December.

Crew-13 was only the first of three SpaceX launches planned for Thursday, as Teslarati previewed on Wednesday. A Falcon 9 launched its Transporter-18 mission from California today, where Google will be launching its first orbital artificial intelligence (AI) test satellite. Meanwhile, Falcon Heavy is set to launch the classified NROL-97 mission for the National Reconnaissance Office from Launch Complex 39A at 11:53 p.m. ET. Its two side boosters will return to Landing Zones 1 and 2, which means Central Florida could hear up to three sonic booms in a single day. The busy stretch follows Starship’s Flight 14 on Monday, which reached orbit for the first time.

Advertisement
-
Continue Reading

News

Tesla moves forward on Wireless Charging for vehicles

Published

on

Credit: Tesla | X

Tesla has moved its Wireless Charging efforts for its electric vehicles forward, as it had a new patent published today, one that it submitted back in March.

The patent describes a system for detecting foreign objects on the wireless charging pad under varying temperatures, aiming to mitigate any undesired results that could come from something being on top of the charging pad.

The abstract of the patent states:

Advertisement
-

“The present disclosure relates to methods and systems that can reliably detect foreign objects on a wireless charging pad under varying temperatures. In some examples, an object detector can utilize a set of inductive coils included in resonant tanks, and excite the resonant tanks using signals in a range of frequencies including or near a nominal resonant frequency of the resonant tanks. The object detector can detect a metal object based on resistance of a coil increasing and inductance of the coil decreasing. By analyzing the shifts and/or distributions in resonant frequencies and output magnitudes (e.g., output voltage peaks), the object detector can distinguish between changes of frequencies and magnitudes caused by temperature and those caused by foreign objects to accurately detect the foreign objects.”

The object detection system will utilize a set of inductive coils included in resonant tanks, and “excite the resonant tank using signals in a range of frequencies including or near a nominal resonant frequency of the tanks.” Metal can be detected by an increase in the coil’s resistance and a decrease in the coil’s inductance.

By analyzing shifts or disruptions in resonant frequencies and output magnitudes, the system can detect foreign objects. These types of safeguards need to be implemented through the normal operation of the charging pads.

Tesla says its Cybercab wireless charging efficiency is ‘well above 90%’

Tesla plans to utilize wireless charging with Cybercab and Robotaxi-enabled units to help streamline the fully autonomous experience from A to Z. The last thing the company wants to do is have any sort of small obstruction preventing the rider from experiencing Robotaxi as intended.

Advertisement
-
Continue Reading