Paige Dodd. Honda. October 19th , 2017.
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.
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.
Located behind the instrument panel, the Honda Odyssey cast magnesium steering hanger beam replaces the multi-part steel unit in the previous Odyssey. Its purpose is as a structural attachment point for the steering column and instrument panel, as well as a structural element that helps the passenger cabin retain its shape in certain collisions. For the first time, the Odyssey body structure also utilizes composite materials to further reduce weight while enhancing rigidity and noise dampening. One example is inside the C-pillars, where composite stiffeners, together with the structural foam mentioned above help improve body rigidity. Another example is the base that supports the Odyssey battery. Created from a single composite casting, it holds the battery securely while adding minimal weight to the overall body structure, saving 2.9 lbs. over the previous Odyssey.
Powering the 2018 Honda Odyssey is a 3.5-liter direct injected i-VTEC® 24-valve SOHC V6 engine with Variable Cylinder Management™ (VCM™). The new engine is common with the powerplant in the 2017 Pilot and is mated to one of two new transmissions - a 9-speed automatic (9AT), also introduced in the Pilot, for LX, EX, EX-L and EX-L NR trims, and an all-new minivan and front wheel drive-first 10-speed automatic (10AT) for Touring and Elite models. For the first time ever, all Odyssey models are equipped with steering wheel mounted paddle shifters, to give drivers greater control over transmission operation, which is particularly useful in mountainous driving or when towing. Models equipped with the new 10AT also have a new Idle-Stop capability, which further enhances fuel efficiency.
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