someone
10-16-2004, 02:27 PM
Honda's I-VTEC I Engine (http://world.honda.com/HDTV/news/2003-4031127a/)
I thought this is pretty interesting and is very educational, you guys and gals might enjoy this. Running time is 10mins, but every minute is very educational and worth watching.
Newly developed direct in-cylinder injection 2.0L DOHC i-VTEC I gasoline engine
• The newly developed 2-liter DOHC i-VTEC I engine incorporates advanced Honda technologies and intelligent control systems, for class-leading fuel economy as well as clean emissions and high output --- two areas which are problematic for direct injection engines.
• The newly developed 2-liter DOHC i-VTEC I integrates the i-VTEC system, which combines VTEC (Variable Valve Timing and Lift Electronic Control) and VTC (Variable Timing Control), with a newly developed center injection system, for an air-fuel ratio*1 of 65:1, an unprecedented level of ultra-lean combustion. Stable combustion is achieved with considerably less fuel than with conventional direct injection engines, for which an air-fuel ratio of 40:1 was the limit. The new engine makes for sporty driving and a high fuel efficiency of 15.0 km/L*2.
• Combustion control through the use of high-precision EGR valves and a newly developed high-performance catalyst enable the i-VTEC I, while a lean-burn direct engine, to qualify as an Ultra Low Emissions Vehicle.
*1 EGR included
*2 Fuel economy in 10-15 mode (Japanese Ministry of Land, Infrastructure and Transport calculations)
Honda's SH-AWD System (http://world.honda.com/HDTV/news/2004-4040401a/)
SH-AWD Super Handling All-Wheel-Drive system
· A world’s first, the SH-AWD system combines front-rear torque distribution control with independently regulated torque distribution to the left and right rear wheels to freely distribute the optimum amount of torque to all four wheels in accordance with driving conditions. Front-rear torque distribution varies between ratios of 30:70 and 70:30, and lateral torque distribution in the rear wheels varies between ratios of 100:0 and 0:100. Torque is used not only for propulsion, but for cornering as well, resulting in a significant enhancement in vehicle maneuverability.
· The system’s torque control logic operates primarily on active feed-forward control based on driver input. This is combined with feedback control based on vehicle behavior to achieve highly precise control that respects the driver’s intent
I thought this is pretty interesting and is very educational, you guys and gals might enjoy this. Running time is 10mins, but every minute is very educational and worth watching.
Newly developed direct in-cylinder injection 2.0L DOHC i-VTEC I gasoline engine
• The newly developed 2-liter DOHC i-VTEC I engine incorporates advanced Honda technologies and intelligent control systems, for class-leading fuel economy as well as clean emissions and high output --- two areas which are problematic for direct injection engines.
• The newly developed 2-liter DOHC i-VTEC I integrates the i-VTEC system, which combines VTEC (Variable Valve Timing and Lift Electronic Control) and VTC (Variable Timing Control), with a newly developed center injection system, for an air-fuel ratio*1 of 65:1, an unprecedented level of ultra-lean combustion. Stable combustion is achieved with considerably less fuel than with conventional direct injection engines, for which an air-fuel ratio of 40:1 was the limit. The new engine makes for sporty driving and a high fuel efficiency of 15.0 km/L*2.
• Combustion control through the use of high-precision EGR valves and a newly developed high-performance catalyst enable the i-VTEC I, while a lean-burn direct engine, to qualify as an Ultra Low Emissions Vehicle.
*1 EGR included
*2 Fuel economy in 10-15 mode (Japanese Ministry of Land, Infrastructure and Transport calculations)
Honda's SH-AWD System (http://world.honda.com/HDTV/news/2004-4040401a/)
SH-AWD Super Handling All-Wheel-Drive system
· A world’s first, the SH-AWD system combines front-rear torque distribution control with independently regulated torque distribution to the left and right rear wheels to freely distribute the optimum amount of torque to all four wheels in accordance with driving conditions. Front-rear torque distribution varies between ratios of 30:70 and 70:30, and lateral torque distribution in the rear wheels varies between ratios of 100:0 and 0:100. Torque is used not only for propulsion, but for cornering as well, resulting in a significant enhancement in vehicle maneuverability.
· The system’s torque control logic operates primarily on active feed-forward control based on driver input. This is combined with feedback control based on vehicle behavior to achieve highly precise control that respects the driver’s intent