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Originally Posted by justgreat  i believe the acronym is hccs which is the hybrid (my term) system i alluded to. ford tested a similair system in ups trucks back in the 70's but couldn't get it to work for every day use. the system incorporates both compression ignition (diesel) and spark ignition for greatly improved fuel consumption. all this is only possible due to the advancements made in the use of engine control systems since the advent of the digital age. |
M-B calls this system DiesOtto (
Diesel
Otto cycle), and introduced it last month at the Frankfurt Auto Show in the F700 concept. Quoting Autoweek, "Despite its relatively meager capacity by luxury-car standards, the F700’s advanced engine punches well above its weight, with a 238-hp output that compares favorably with Mercedes’ existing four-valve-per-cylinder 3.5-liter V6 gasoline and 3.0-liter V6 common-rail diesel units. With an electric motor designed to provide an additional burst of output under acceleration, the F700’s peak power tops out at a competitive 258 hp in hybrid mode. Torque is rated at 295 lb-ft—prodigious by four-cylinder gasoline engine standards.
Mercedes says it’s enough to propel the F700 from 0 to 62 mph in 7.5 seconds. But even more impressive are its environmental credentials, estimated at more than 50 mpg with an extremely low carbon-dioxide output."