Niamh Hart Audi, 2017-11-04 19:54:15. In the induction tract, the intake valves close well before the piston reaches bottom dead center. This very short opening time keeps the fresh gas flow comparatively small. When the piston moves back up again after reaching bottom dead center, the compression phase starts later than usual. This allows a high geometric compression ratio of 10.0:1 - the combustion then takes place in a relatively small volume. In comparison to the short compression phase, the expansion phase is extended, which results in a high level of efficiency.
Niamh Hart Honda, 2017-10-19 15:02:30. The Odyssey V6 engine combines Variable Cylinder Management (VCM) with Variable Valve Timing and Lift Electronic Control (i-VTEC), which changes the lift profile, timing and lift duration of the intake valves. A switching mechanism allows each cylinder to operate with low-rpm valve lift and duration or high-rpm lift and duration. While operating in 3-cylinder mode, the rear cylinder bank rocker arms deactivate, closing all intake and exhaust valves to minimize pumping losses. The "intelligent" portion of the system is its ability to vary valve operation based on the driving situation and engine rpm. At low rpm, the i-VTEC intake valve timing and lift are optimized (low lift, short duration) for increased torque, which allows a wide range of 3-cylinder operation. As engine rpm builds past 5,350 rpm, the i-VTEC system transitions to a high-lift, long-duration intake cam profile for superior high-rpm engine power.
Mollie Slater Honda, 2017-10-19 15:02:30. Wraparound chrome trim adds a luxurious touch on all trims, as do chrome door handles on EX and above trims, and body-color lower side sills on the Touring and Elite trims. Re-engineering the sliding side door mechanisms removes the previous models visible rails along the rear body sides, giving the new Odyssey a cleaner appearance, while the larger 18-inch and available 19-inch wheels and tires further bolster the 2018 Odyssey athletic stance.
Mollie Slater Honda, 2017-10-19 15:02:29. Compared to conventional halogen headlights, the Odyssey available LED headlights offer some 32.8 feet (10 meters) wider illuminated area on each side - as well as a 26.2 foot (8 meter) longer reach line - when low beams are in use. The width and reach advantages aid drivers in more safely and confidently navigate both straight and winding roads. Odyssey auto-high beam feature further improves safety. All 2018 Odyssey trims feature LED taillights, whose C-shaped design complements the wing-shaped design of the available front LED DRLs and providing a distinctive Odyssey appearance that is easy to spot on the road. The Odyssey EX-L, Touring and Elite trims feature a power tilting and sliding front moonroof with a manual sunshade. To tilt or slide the moonroof, the driver or front passenger needs only to fully press the ceiling-mounted switch once (instead of pressing and holding it for several seconds). The moonroof fully opens or closes automatically. However, if the operator wishes to only partially open or close the moonroof (such as to achieve partial ventilation), a lighter touch yields fully manual control. The moonroof can also tilt to provide ventilation. An auto-reverse feature is built in, helping to mitigate the possibility of a pinched finger or limb. If the moonroof motor ECU detects a threshold level of mechanical resistance, indicating a possible obstruction, the motor will automatically reverse and reopen the moonroof.
Niamh Hart Honda, 2017-10-19 15:02:28. The Honda Odyssey new direct-injection system enables increased torque across the engine full operating range along with higher fuel efficiency. The system features a compact, high-pressure, direct-injection pump that allows both high fuel flow and pulsation suppression, while variable pressure control optimizes injector operation. A multi-hole injector delivers fuel directly into each cylinder (not to the intake port, as in the previous generation Odyssey), allowing for more efficient combustion. The multi-hole injectors can create the ideal stoichiometric fuel/air mixture in the cylinders for good emissions control. Theoretically, a stoichiometric mixture has just enough air to completely burn the available fuel. Based on the operating conditions, the direct-injection system alters its function for best performance. Upon cold engine startup, fuel is injected into the cylinders on the compression stroke. This creates a weak stratified charge effect that improves engine start-up and reduces exhaust emissions before a normal operating temperature is reached.
Millie Lowe Honda, 2017-10-19 15:02:30. The 2018 Honda Odyssey 3.5-liter V6 engine meets the tough EPA Interim Tier 3/Bin 125 and CARB LEV3/ULEV-125 emissions standards, and is certified to this level of emissions performance for 150,000 miles. Numerous advanced technologies are factors in the emissions performance. The unique cylinder head-mounted close-coupled catalytic converters light off quickly after engine start up, and a 32-bit RISC microprocessor within the Electronic Control Unit (ECU) boosts computing power to improve the precision of spark and fuel delivery. The engine features Programmed Fuel Injection (PGM-FI) that continually adjusts the fuel delivery to yield the best combination of power, low fuel consumption and low emissions. Multiple sensors constantly monitor critical engine operating parameters such as intake air temperature, ambient air pressure, throttle position, intake airflow volume, intake manifold pressure, coolant temperature, exhaust-to-air ratios, as well as the position of the crankshaft and the camshafts.
Mollie Slater Honda, 2017-10-19 15:02:29. Exclusive to the Odyssey Touring and Elite trims, LED low- and high-beam headlights provide improved nighttime illumination and visibility compared to contemporary high-intensity discharge (HID) headlights. Six LEDs serve as low beams and three LEDs serve as high beams on each side. Besides improving driver confidence and passive safety, the LED headlights use less energy, helping to enhance fuel efficiency by reducing engine loads. In addition, the LED headlights last up to five times longer than HID headlights and up to 10 times longer than halogen headlights - contributing to less frequent replacement and the associated cost savings. An auto on/off function is also included.
Niamh Hart Honda, 2017-10-19 15:02:29. To provide extra sound insulation by blocking off hollow pillars, acoustic spray foam is applied in 14 locations in the Odyssey body for the first time in Honda history. The areas include the base of the A-, B-, C- and D-pillars, as well as the base of the windshield frame and at the top of the C- and D-pillars. In addition, acoustic tape is applied at base of the A-, B- and C-pillars, and a foam stopper is applied to the bottom of the B-pillar. Altogether, the use of these body sealing techniques results in a 55-percent reduction in body leaks, which significantly reduces noise entering the cabin in critical sections. All foam and acoustic tape application is done while the unit-body is in its just manufactured "body-in-white" form - before attachment of key components and assemblies.
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