2022 Toyota Tundra Diesel Redesign

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2022 Toyota Tundra – Rumours have been circulating about the next gene 2022 Toyota Tundra with much speculation about the engine. New patent filings suggest Toyota engineers are working on something and that something could be very special – toyota tundra diesel.

2022 Toyota Tundra Diesel Redesign

Filled on the July 2, 2020 patent, posted to the Rivian forum, seems to follow up on the trademark news Toyota has made recently on a new iForce Max engine. It fueled speculation about Toyota taking the current 5.7L V-8 iForce engine to a whole new level.

Given the new Toyota Tundra should hit a lot of dealers in fall 2021, trademark filing and now this patent filing, there is a lot of speculation that 1 + 1 + 1 = 3. We spoke to several sources off the record to get your thoughts, as well as asking our own G.R. Kit for these thoughts on toyota tundra diesel.

Earlier this year Toyota’s trademark app for the name iForce Max fueled speculation of a twin-turbo petrol V-6 for the next Tundra, with output of 450 horsepower and 500 pound-feet or better. Given that Lexus already has a twin-turbo gasoline V-6 and iForce’s famous Toyota truck engine moniker seemed reasonable, and given Toyota’s hybrid experience, ekeing out a few extra pound-feet would be easy.2022 Toyota Tundra Diesel Redesign

However, a patent application filed in December last year takes me in a different direction: fuel-injecting diesel channel.

I will say right now it does not mention the words “diesel” or “Tundra”, and “gas” appears used only as light, not short for gasoline. I am also not an engineer and just make a habit of crashing the engine after I or a friend carry them or follow them up.

What do we really know?

The documents refer to the “compressed internal combustion engine of the self-ignition type”, but this can be applied to the diesel engine cycle or HCCI (homogeneous compression charge ignition) that operates on gasoline or diesel. The documents often mention the “glow plug”, but it appears to be the pieces used to heat the fuel, not the air as they do in conventional diesel. I can not find any indication that there are no spark plugs or conventional glowing in the attached drawing lines, and the only materials called are aluminum head with some chrome steel hardening points. Drawings show several arrangements, one with channels located on the side of the chamber of the cylinder head (and depending on the assembly can be part of the injector inserted from the chamber side) and one that displays the channels inside the head on the roof of the chamber.

In one part the fuel is injected under a compressed charge, more indicative of diesel in which combustion begins when fuel is added, rather than an HCCI gasoline engine where the fuel is injected during a suction stroke and spontaneously combusts when compression drives temperature and density high enough. However, HCCI has tested diesel in the past, so it’s possible Toyota has figured out a way to make it feasible over a wider speed and load range.

The text often mentions “smoke suppression.”” Smoke is most commonly mentioned in diesel engines – and really rich hot rods, but that doesn’t guarantee either diesel and particulate matter: Some petrol cars in Europe have particle traps, from them direct injections.

What really makes me think that this diesel is a job at Sandia National Laboratories by Charles Mueller and associates, who found that better mixing fuel and air before igniting the point would make it cleaner, more complete, leaner and cooler to burn, lowering NOx and soot. For one analogy consider your propane torch, which has a fitting end of the pipe (ironically mimicking a modern diesel exhaust top) in order to better mix air and fuel and make that beautiful, pure blue flame, against a smoky orange flame when the first light oxy-acetylene torch.

My reading of the patent document makes me think it’s for diesel engines, but I’ve been wrong before. And there’s no guarantee that fuel injection will arrive on any Toyota engine in the next few years, nor that it will appear in the Tundra. But I think how many diesel engines Toyota sells around the world and that ducted fuel injection can probably be carried out at the same or lower price than typical diesel after-treatment systems, and depreciation comes quickly.

We also reached out to a few unofficial engineers who said all sorts of things. One of them mentioned that it could be a homogeneous compression ignition charge aka Mazda SkyActiv X engine – which achieved a 15% improvement over its other petrol engines. HCCI engines work using compression to ignite a mixture of air and fuel, just like in diesel. Usually use a spark plug in a gas engine.

It has long been considered “unicorn” engine design and many manufacturers have spent decades trying to perfect it.

Why would Toyota copy a Mazda? Toyota and Mazda have a history of working together. Currently, they are working on jointly building vehicles at a factory in Alabama and Toyota owns a small stake in Mazda (very typical toyota to take ownership stakes with the companies it is working with). It leads me to think if Toyota owns part of mazda, works on building vehicles with Mazda, then why not look at your engines. The patent could then be using some of Mazda’s breakthrough, and making small tweaks to allow Toyota to have a patent on its design.

That would mean the engine would use gasoline because Mazda’s current SkyActiv gas engine. However, the way the patent is written and the way diesel engines work may only be that this patent demonstrates how a petrol engine can benefit from the principle of burning a diesel engine.

Another source we spoke to, who has years of diesel engine development for a major carmaker, said it looks a lot like the kit described it – a previously heated fuel mixed with air causes automatic ignition inside the combustion chamber. Basically, eliminating the need for spark plugs, reducing emissions and improving fuel consumption. While this would mean Toyota would need tight controls on block temperatures and other factors, it is possible to make such an engine work.2022 Toyota Tundra Diesel Redesign

A really interesting application of this is in a diesel engine though. It is possible that this engine will eliminate one of the systems after processing currently used on the diesel engine. Right now, you need to add diesel exhaust fluids, go through the regen process and replace your diesel particulate filters, as well as keep an eye on your injectors. Basically, as many see it, the diesel engine is torn apart by the emissions equipment and is now a very expensive engine to maintain. Removing only one of those after the processing system would allow for a reduction in the cost of purchases, reduced maintenance, a better economy of consumption by reducing unspent fuel, and perhaps by improving efficiency by removing one of the limits of air flow outside the engine. In other words, we could see a Toyota Tundra diesel engine that is superior to gas, more efficient to operate and cheaper to buy.

We contacted Toyota and they had this to say:

“As a result of our commitment to innovation and continuous improvement, Toyota has received 23,611 patents over the past thirty-five years; most patents of any car manufacturer. These patents represent the brainpower, innovative spirit, diligence, and passion of Toyota engineers and researchers, but may not always find their way into production.”

With the announcement of the 2022 Tundra, Toyota last week brought together Internet servers from around the world. Aside from the rumors about the loss of the V8 and the size of the new grill, the noise, which will eventually subside as people get used to the look (hello, BMW 3 Series), seems to have met with a lot of applause.

We all know the big news: new frame and sheet metal, new coil-spring rear suspension with air bag option, optional hybrid boost torque torque torque with new twin-turbo V6 583 kg, new 10-speed transmission, available 14-inch monitor Now-available crewmax models with all-new interior, standard composite box, 6.5-meter bed. And while there are details we still don’t know – fuel consumption, weight, size, price and model options – there are many details that have been overlooked and little known in the big debut.

At Toyota Motor North America, we spoke for over an hour with Mike Sweers, CEO of Tundra, Sequoia, Tacoma and 4Runner, to learn more about the many technical changes to the Tundra in 2022.

About V8 dumping for hybrid turbo V6
Sweers admits: “To be honest, I probably shouldn’t have said that. But I was one of those boys who believed that there was nothing else to do. ” “We’ve been testing this engine in all kinds of climates for six years now, especially in towing. So as we reduce emissions, the real question is what happens when you start smoking.”

The engine, which is all new and uses an exhaust exhaust manifold initially integrated to help cool the turbo, is not the same as the Lexus twin-turbo, despite the same 3.5-liter dislocation, Sweers says. It has more mesh than the 5.7-liter V8 (479 and 401). The fuel injection system is Toyota’s D4S, so it is port and direct fuel injection. – This is a Toyota engine. Regardless of the number of cylinders, our requirements for durability do not change. Therefore, the longevity of the engine and the QDR of that engine must meet the same requirements. ”

In towing with coil-spring suspension

Sweers says one of his goals was to increase his predecessor’s weight from about 9,000 lbs to around 12,000 pounds in 2022 models, and to make sure that this feeling would be “confident and natural” for someone who doesn’t always tow. Part of it comes to having enough strength to pull everything they pull, to have enough strength to pass or combine at the same time, and to be able to stand easily enough to carry such a large load. The new braking system, new electrical architecture, new power management and 10-speed transmission also help with what he said. Each system communicates with each other, making the experience unshakable.

He said he would not play the “numbers game” of towing the competition. Because what is more important is the real-world ability, not the right to brag. “Our focus is on ensuring that the tow rating we put there meets, first and foremost, the requirements of SAE J2807 and also Toyota to be sure and natural.”

Although GM, Ford and RAM offer higher tow ratings on certain models, the numbers don’t always make much sense. “You can push the van to the maximum, but you can enjoy driving it,” says Sweers. – Most of all, you put 8,300 kilograms or more of money behind trucks. They are a little – I’m not saying they are scary, but you have to drive them, it’s not natural. Our focus is on making sure you can take out £ 12,000. ” Say, “Oh, you said I could take it out, but when I get the van back there, I have a bunch of sways, and I feel unstable.” That should never happen. We mean when you want to get in so many cars. the truck makes it useless. ”

He said he had heard from customers carrying fifth-wheel or gooseneck traders that they would get too much sag when loading their vans. Therefore, the introduction of rear airbags is only to help the new coil springs that replace the leaf springs in the outgoing truck. Water sources and multi-link suspension are adjusted for light and medium duty to maintain steering comfort, but the truck’s stance will help when the airbags are loaded with full weight on the stall. Airbags can also be dropped by hand to make it easier to hit or load the van.2022 Toyota Tundra Diesel Redesign

Two tow modes – Tow and Tow + – separate loads under and above 5000 lbs, each mode changes power steering, throttle map, braking and transmission shift point.

Sweers says there are seven different bracket calibrations when towing or off-roading. The braking system also works to maintain a certain speed when descending a hill with a large load.

According to Sweers, a new backup system helps keep track. Short language traders use cameras and algorithms to automatically keep the van in a straight line when returning with the trader, as it is more difficult to maneuver than long traders. “For a guy who doesn’t always tow, loading that boat into a boat launch, like everyone else watching you, shouldn’t be a traumatic experience,” he says. Point the van in the desired direction, press the button and apply the brakes if necessary. The vehicle is self-driving with electric control.

On a new frame

The new, full-box frame has also been expanded under the back of the current composite box to help with towing. But going full box also presented its challenges. Sweers says it’s comfortable, especially since it’s tougher. The new TNGA framework is a product of combining three platforms. In this process, more than 40 engineers go to Japan, and two years to development. Basically in the Tundra, you have the ability to own the king of off-road capabilities called the Land Cruiser. It sounds very simple, but before I started this project, I had more hair. ”

Sweers says he was initially opposed to giving up the open C-frame because “the minute you go to the box frame in the truck, your ride goes to pieces. you can deal with. ” And since this new platform will be the basis for several upcoming SUVs, especially the next Sequoia, Lexus LX and GX, as well as the sixth generation 4Runner, the ride quality was the highest. “What I’m saying is that we have to go full box, because we throw water [bodies] there, and SUVs require full box frames.” But I don’t want anyone to tell me that I have to drive it like a truck. ”

About choosing a hybrid over diesel

Sweers says he loves diesel engines and would like to put one in the new Tundra, but thanks to Volkswagen’s emission scam (okay, he wouldn’t actually name VW) it now takes three years to certify diesel in North America. Sandwiching the hybrid engine generator between the engine and the transmission achieved the main goal of increasing torque (from 401 lb-ft to 583) while also providing the added benefit of better fuel economy. He would not disclose the figures, but our estimate will be close to 12 L / 100 km.

“It’s just a phenomenon,” he said of the feelings behind the wheel. “It’s a bit close to what a diesel torque bend will look like, but it’s clear that when you look at the throttle pedal [even the pedal has been redesigned], you get a faster response than diesel.” The hybrid motor-generator can self-power the truck at low speeds by pulling from a 1.8 kw nickel-metal hydride battery (preferably in deep cold or hot heat) at 45 amps.

With the hybrid, “we’re filling that torque curve,” Sweers says. He explained that instead of waiting for the turbo spool, the hybrid system kicks to maintain the highest torque at 2400 rpm. – So what you feel is the best in the whole world. You get that diesel-type torque and you get a gas reaction and you improve the fuel economy. ”

“The madness of the amplifiers in the new truck is that the gas engine itself produces an astonishing amount of torque. But as you move to the iForce Max, your fuel economy improves even more,” he added. “I don’t know anyone else who can improve the performance of their power and at the same time improve their fuel economy.”

What to do and how not to buy a new tundra?

According to Sweers, it is clear that a pickup takes care of the tastes and needs of the general public, and distilling requires an entire team. He acknowledged that the Tundra was on-the-spot for a replacement, but it made sense to get a chance to combine it with the Land Cruiser platform, even if it took longer to bring it to market. This also meant that the Tundra was buying more roadside shops, gaining features such as procrastination that “normally we wouldn’t think for a full-size truck.”

While it’s obvious to keep a fully folding rear window, he said the ‘22 Tundra doesn’t have an automatic, full-time AWD because it only adds mass and weight to the Borg-Warner transfer business (for 2022). 1-3 / 4-inch chain) and was not high on the wish list of truck owners. He intended to add more electricity to the bed, as he did with Ford’s hybrid F-150, but concluded that the additional cost was more than what the consumer would pay for a portable generator that could power the entire home.

He said Toyota, like other manufacturers, was surveying Tundra buyers’ clinics and marketing and intel before building an entire new Tundra. At the same time, workers often attend truck events and listen to what people do with trucks.

“It’s made by truck people in North America,” he said. – I’m a truck boy; We own trucks, we use trucks as trucks. That’s why I always smoke. I like owning a small farm by the roadside. I am not only a chief engineer, but also a client, and this is true of our engineers. The truck has very few features based not only on what we hear from the market, but also on our real engineers and their experience. “