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.
Odyssey EX and above trims include power sliding side doors that can be activated by a switch (to operate left, right or both doors) on the instrument panel, by a switch from the second-row seating area, by pulling on either the interior or exterior door handle, or by buttons (left or right) on the remote key fob. The system features improved operating logic. In the previous Odyssey generation, if the driver and a passenger outside the vehicle were to each activate a power side door at approximately the same time, the door could start to open with the first person action, and then stop as soon as the second person took action. To eliminate this on the 2018 Odyssey, new door logic enables the door to operate as intended if two identical activations (such as the driver and a passenger both wishing to open a door) are entered within a half second of each other. For instance, if a parent pulls up to the curb at school and presses the power side door open button at approximately the same time as does a child waiting curbside, the door will open as desired. If longer than a half second passes between activations, door operation will stop, and a warning beep will sound.
Once the engine is fully warmed up, for maximum power and fuel efficiency fuel is injected during the intake stroke. This helps create a more homogeneous fuel/air mix in the cylinder that is aided by the high-tumble intake port design. This improves volumetric efficiency, and the cooling effect of the incoming fuel improves anti-knock performance. Every 2018 Odyssey is equipped with an ECON button that helps improve fuel efficiency by modifying throttle mapping and HVAC operation. When the system is operating, a green ECO indicator appears on the instrument panel and the Drive-by-Wire throttle system provides a more gradual response. To save additional energy, the climate control system characteristics are altered based on the conditions. A green coaching light in the instrument display gives the driver feedback to help improve their real-world fuel economy and instant or average fuel economy can be displayed.
The new Odyssey makes widespread use of structural adhesives in the unit-body, supplementing structural welds and significantly increasing rigidity without the additional mass of steel components. Structural adhesives are used at the roof edges and around the moonroof opening, in the front floor and cowl area, in the A- and B-pillars, around the front suspension upper mounts, and extensively throughout the rear of the body. Applied before the body panels are welded together, some 147.6 feet of adhesives (32.8 ft. more than in the previous Odyssey generation) account for approximately 3.5 percent of the entire unit-body stiffness.
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