Shannon Griffin. Honda. October 19th , 2017.
A cooling control spacer positioned in the water jacket surrounding the cylinders helps control warm-up and operating cylinder liner temperatures to reduce friction. Plateau honing of the cylinder lining further reduces friction between the piston skirts and the cylinder walls by creating an ultra-smooth surface. This 2-stage machining process uses two grinding processes instead of the more conventional single-stage honing process. Plateau honing also enhances the long-term wear characteristics of the engine. Designed with "cavity-shaped" crowns, the 2018 Odyssey pistons help maintain stable combustion and contribute to stratified-charge combustion. Ion-plated piston rings help reduce friction for greater operating efficiency. Heavy-duty steel connecting rods are forged in one piece and then "crack separated" to create a lighter and stronger rod with an optimally fitted bearing cap.
For the first time, the new 2018 Odyssey has 1500-megapascal (MPa) ultra-high-strength steel door reinforcement beams and ultra-high-strength front door outer stiffener rings made of 1500-MPa hot-stamped steel. Laser welded and significantly stronger than ordinary steel, the ultra-high-strength steel reinforcements are designed to help better protect occupants in a frontal or side impact. Their increased strength allows the components to be made lighter which also helps reduce overall vehicle weight for improved fuel efficiency.
The 2018 Odyssey receives the most thorough and intensive array of aerodynamic refinements of any Odyssey generation to date. This comprehensive approach boosts aerodynamic efficiency and reduces wind noise. Examples of the aero efforts found on the 2018 Odyssey include extensive under covers, the Active Shutter Grille system, hidden windshield wipers, wind-sculptured side mirrors (power folding on Elite), and many small but pertinent details such as under-body strakes, shark fin-type antenna, and a rear spoiler (black on LX, EX, EX-L and Touring trims, body-color on Elite).
The Honda Odyssey Drive-by-Wire throttle system replaces a conventional throttle cable with smart electronics that "connect" the accelerator pedal to a throttle valve inside the throttle-body. The result is less under-hood clutter and lower weight, as well as quicker and more accurate throttle actuation. Plus, a tunable "gain" rate - the relationship between throttle pedal application and throttle opening - offers improved drivability and optimized engine response to suit specific driving conditions. Honda Drive-by-Wire throttle system establishes the current driving conditions by monitoring throttle pedal position, throttle valve position, engine speed (rpm) and road speed. This information is used to define the throttle control sensitivity that gives the Odyssey throttle pedal a predictable and responsive feel that meets driver expectations.
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