Niamh Hart. Honda. October 18th , 2017.
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.
The Odyssey Electronic Control Unit (ECU) monitors engine functions to determine the best ignition spark timing. Two engine block-mounted acoustic detonation/knock sensors "listen" to the engine, and based on this input, the ECU can retard the ignition timing to prevent potentially damaging detonation. The engine has an ignition coil unit for each cylinder positioned within each spark plug access bore. To help improve fuel efficiency, the Odyssey Touring and Elite are equipped with Idle-Stop capability. When the system is enabled by the driver and certain operating conditions are met, the Idle-Stop system will automatically shut off the engine when the vehicle comes to a stop. The engine is automatically restarted when the driver releases the brake pedal after a stop, or if the steering wheel is turned. If the Brake Hold system is in use, the engine quickly restarts after the throttle is depressed.
The 2018 Odyssey shares the same 118.1-inch wheelbase with the previous-generation Odyssey for superb second- and third-row seating roominess, easy ingress and egress, and superior ride comfort. The overall length increases fractionally to 203.2 inches due to a 0.4-inch longer rear overhang, while the width decreases by 1.1-inches to reduce frontal area, reducing aerodynamic drag. Overall height is nearly identical. The dimensional adjustments do not compromise interior roominess, as the new Odyssey offers fractionally more front and third-row headroom, retains almost identical overall passenger volume, and offers more cargo volume, with two inches more length in the cargo area, than the previous generation.
Acoustic laminated windshield glass helps reduce noise entering the cabin on EX-L and above trims. Tuned specifically to attenuate wind-, urban- and traffic-noise frequencies, the acoustic windshield uses an outer layer of 2.0 mm safety glass, a 0.7 mm thick middle layer of acoustic polyvinyl butyral (PVB) and a 2.0 mm inner layer for a total thickness of 4.7 mm - an increase over the 4.5mm thickness of the previous-generation Honda Odyssey windshield. This helps the Odyssey place at the top of its class in wind-noise performance.
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