Honda develops V-6 which cruises on 3 cylinders
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From: Scottsdale
Honda develops V-6 which cruises on 3 cylinders
Pretty interesting engine Honda just developed. Would be interesting to see what car they use it in first assuming it comes to the US.
05:25:21 July 10, 2003)
Honda develops V-6 which cruises on 3 cylinders
By YUZO YAMAGUCHI | Automotive News
TOKYO - Honda Motor Co. has developed a 3.0-liter V-6 engine that can deliver as much as 250 hp when accelerating, or cut back to just three cylinders when cruising.
That flexible performance offers an average fuel economy equivalent to that of a 2.4-liter four-cylinder engine, or 27.3 mpg, under Japan's so-called 10-15 mileage test, which is not directly comparable with fuel-economy tests in other countries.
The new powertrain, using what Honda calls "variable cylinder management," is mounted in the remodeled Inspire sedan, which was introduced June 19 in Japan. Spokesman Masaya Nagai says Honda has no immediate plans to use the technology on models in the United States.
The previous Inspire was the Japan-market version of the U.S.-market Acura TL. The TL is to be remodeled this autumn for the U.S. market. Nagai declined to give a specific reason for not using the new engine in the Acura TL, saying the company was not prepared to disclose details.
In addition to its low fuel consumption, the engine also reduces exhaust emissions, helping the Inspire meet Japan's ultralow emissions and 2012 fuel consumption standards.
To cut emissions, the engine locates high-density catalytic converters directly below each cylinder head for improved gasoline exhaust at low engine temperatures.
The engine also cuts vibration and noise. When operating in three-cylinder mode, engine vibration is reduced by extrapolating vibration from the change in crankshaft rotation speed and sending the information to an active control engine mount, which compresses and extends an actuator in a same-phase, same-period motion to dampen the engine mount.
Similarly, a speaker creates an opposite phase sound or "active noise control," for a canceling effect, thereby leaving the driver unaware of changes in the number of cylinders being used.
http://www.autoweek.com/cat_content.mv?por...t_code=07353465
05:25:21 July 10, 2003)
Honda develops V-6 which cruises on 3 cylinders
By YUZO YAMAGUCHI | Automotive News
TOKYO - Honda Motor Co. has developed a 3.0-liter V-6 engine that can deliver as much as 250 hp when accelerating, or cut back to just three cylinders when cruising.
That flexible performance offers an average fuel economy equivalent to that of a 2.4-liter four-cylinder engine, or 27.3 mpg, under Japan's so-called 10-15 mileage test, which is not directly comparable with fuel-economy tests in other countries.
The new powertrain, using what Honda calls "variable cylinder management," is mounted in the remodeled Inspire sedan, which was introduced June 19 in Japan. Spokesman Masaya Nagai says Honda has no immediate plans to use the technology on models in the United States.
The previous Inspire was the Japan-market version of the U.S.-market Acura TL. The TL is to be remodeled this autumn for the U.S. market. Nagai declined to give a specific reason for not using the new engine in the Acura TL, saying the company was not prepared to disclose details.
In addition to its low fuel consumption, the engine also reduces exhaust emissions, helping the Inspire meet Japan's ultralow emissions and 2012 fuel consumption standards.
To cut emissions, the engine locates high-density catalytic converters directly below each cylinder head for improved gasoline exhaust at low engine temperatures.
The engine also cuts vibration and noise. When operating in three-cylinder mode, engine vibration is reduced by extrapolating vibration from the change in crankshaft rotation speed and sending the information to an active control engine mount, which compresses and extends an actuator in a same-phase, same-period motion to dampen the engine mount.
Similarly, a speaker creates an opposite phase sound or "active noise control," for a canceling effect, thereby leaving the driver unaware of changes in the number of cylinders being used.
http://www.autoweek.com/cat_content.mv?por...t_code=07353465
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From: Lyndhurst
I remember when Cadillac did this quite a few years ago. I think it was something like 4-6-8. It didn't really do that well in the sales dept. though. don't know how relialbel it was either.
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From: Andromeda
Mercedes-Benz put that technology in the Maybach so it'll run on like 6 or 8 when not needing the gurth power of the 12, I think it's really cool and increase the gas milage (in the city, mostly) tremendously.
