How does zero shift work

Sophisticated planetary automatics address most of these issues and further reduce driver fatigue, but capital costs, fuel economy and packaging are compromised. Martin believes that Zeroshift technology provides the best features of each gearbox type.

Zeroshift technology replaces the synchromesh found in a conventional gearbox with pairs of interlocking rings, each incorporating three drive elements in a single forged component.

Shift forks are operated by electrical, hydraulic or pneumatic actuators to suit any established vehicle architecture. The electronic control system, also developed and calibrated by Zeroshift, coordinates gearshift actuation, engine management and clutch operation to provide full control of the driveline during gear shifting.

When shifting from neutral, ring one is engaged by a shift fork to take up drive while ring two is engaged within a few degrees of revolution to take up backlash. The next shift is made with ring two taking up the drive and ring one taking up the backlash. As ring two is unloaded during the change, it requires less than one twentieth the axial force required by a conventional synchromesh.

These very low forces mean that all components can be manufactured from proven lightweight materials with no additional surface treatment. See the Zeroshift website for an animation demonstrating the shift mechanism. Unlike conventional Automated Manual Transmissions, the Zeroshift system changes gear with no torque interruption, providing improved performance, refinement and comfort.

An average fast gearchange is about half a second, normal humans might take a second or two. But when you consider how often we're crawling in traffic and shifting between first, second and neutral, the wasted fuel adds up.

Seamless shifting is possible already, of course. Torque convertors and CVTs continuously variable transmission already offer seamless shifts using planetary gears or step-less gearing, respectively. But these complex solutions target smoothness over efficiency, they're slow, and expensive. The dual clutch gearbox uses two clutches so that two gears can be in use at the same time, one primed for use and one actually driving the car. The switch from one clutch to another happens so swiftly and smoothly that the change of ratio is seamless.

Again, a complex solution, expensive, and heavier than conventional gearboxes. An ideal seamless shift gearbox, then, should be as simple as a manual, as fast as a dual clutch, as smooth as a CVT or torque converter at the price of an AMT. We want our cake, we want to eat it and then be able to take the whole cake home also. Now, yes. A company called Zeroshift says it's done it. The idea is simple. Sign up for free! What do you need help on? Cancel X. Topic Archived First Page 2 of 2.

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Stelman posted I mean like The sheer length of the blacked-out arena means even the use of Zero Shift will take Jehuty several seconds to reach Inhert. Zone of the Enders Wiki Explore. Zone of the Enders: Dolores,i. Recent blog posts Forum. Explore Wikis Community Central. Register Don't have an account? Zero Shift.