Turbo-Diesel Preview for Toyota Tundra?
Toyota will begin shipping a new cab-over-engine Class 5 Hino work truck to select U.S. markets sometime in the third quarter. While that isn’t so exciting, the turbo-diesel electric-hybrid powertrain developed for this truck is creating quite a stir for Toyota Tundra fans. This powertrain could be adapted to be an option for future Tundras.
According to a PickupTrucks.com story, the “Hino 195h uses a 5.0-liter four-cylinder turbo-diesel (and intercooled) engine, electric motor/generator, a six-speed Aisin transmission, a massive nickel-metal hydride battery and a selective catalytic reduction system with a 4.7-gallon diesel exhaust fluid tank.”
Not surprisingly us that this adds up to quite a bit of weight, somewhere around 2,000 lbs. This isn’t a big deal for the Hino that already has a gross weight of 19,500 lbs since it only makes small trips.
Yet, many people think this system could work with a Toyota Tundra albeit with a major weight reduction. Besides the weight issue there could be some issues making the system work “with a four-wheel-drive or all-wheel-drive transfer case, as the driveline is already bulky and heavy. Since the system has a start/stop interface clutch between the engine and motor, adding a transfer case into the driveline could be problematic, not to mention space is tight to get a prop shaft to send power to the front axle, ” according to PickupTrucks.com.
The speculation is also that the modification could go a step further and be adapted for the Toyota Tacoma (although that seems like a long-shot).
One other item to consider is that Toyota has recently announced that their R and D center in Michigan will be in charge of all North American only products like the Toyota Tundra. These means that Toyota City will have little impact on future Toyota Tundra designs rather American designers will have more say in the next-generation trucks.
One has to wonder then, what having American R and D engineers and a turbo-diesel engine already in product could mean for diesel engine development. Will the American engineers finally get a diesel engine in a Tundra?
Filed Under: Auto News