Honda Innovation Delivers 10 Speeds, No Clutch Pedal
Honda’s brand-new automatic transaxle revives the company’s dormant spirit of invention. During much of This particular past decade, This particular seemed as if Honda had taken a break through stretching technological boundaries. The arrival of a brand-new 10-speed transaxle suggests which the engineers’ creativity nap has ended.
This particular brand-new 10-speed automatic mates to a 280-hp 3.5-liter V-6. This particular made its first appearance nestled between the front wheels of the fifth-generation 2018 Odyssey minivan. Credit Honda with two significant firsts: This particular is usually both the first 10-speed automatic for any front-wheel-drive vehicle in addition to Honda’s first use of planetary gearsets.
Until right now, Honda automatic transmissions have fit into three categories: belt-in addition to-pulley continuously variable transmissions (CVTs) manufactured in-house, planetary automatics purchased through suppliers (such as the nine-speed ZF design which will continue to be available on lower trim levels of the brand-new Odyssey), in addition to Honda-built automatics combining a torque converter with servo-shifted helical gears. which last arrangement, which anticipated today’s favorite dual-clutch automatics, was highly developed to work well in scores of Honda types which were sold for decades.
The need for greater packaging efficiency is usually what drove Honda to its brand-new planetary-gear 10-speed. According to Tom Sladek, a development leader for the Odyssey at Honda’s Ohio R&D office, the traditional helical-gear approach simply wouldn’t accommodate 10 forward gears from the available space. The brand-new automatic was designed in addition to developed by Honda R&D in Tochigi, Japan, in addition to is usually being manufactured for the Odyssey by Honda in Tallapoosa, Georgia.
Using planetary gearsets also reduces friction, noted Sladek. The brand-new transaxle is usually barely 15 inches long, 1.7 inches shorter than the six-speed This particular replaces. Four planetary gearsets, three hydraulic clutches, three brakes, in addition to a slim torque converter are all in line with the engine’s crankshaft. Another space saver is usually a two-way clutch which replaces the one-way clutch in addition to multiplate brake which previously shifted between forward in addition to reverse.
A three-stage vibration damper built into the brand-new torque converter helps make the V-6’s cylinder deactivation in addition to stop-start operation barely noticeable. Sladek claims which shift times are 30 percent quicker thanks to the reduced friction, the low rotational inertia of the planetary gearsets, in addition to more efficient hydraulic controls in addition to actuators. Skip-ratio downshifts through 10th to sixth in addition to through seventh to third gears improve response. The 10.1 ratio spread between first in addition to 10th gears is usually 3 percent wider than the spread provided by ZF’s nine-speed. In top gear at 60 mph, engine rpm drops by 400 rpm versus the previous six-speed automatic.
- 10 Things to Know about the brand-new GM/Ford 10-speed Automatic
- Das Epic: VW Developing 10-Speed Dual-Clutch Automatic
- Research Honda Odyssey: News, specifications, reviews, photos, prices in addition to more.
According to Sladek, the initial torque capacity is usually 275 lb-ft, with enough headroom built into the design to accommodate the expected spread through the brand-new Odyssey throughout the Honda in addition to Acura product lineups. While initial applications will be front-drive only, This particular’s safe to assume which a power takeoff can be added for all-wheel drive from the future.