Geartronics paddleshift automatic mode.

This is a demonstration of the auto upshift and queued downshift capability of the Geartronics paddleshift system. The test gearbox is a Quaife 26Z Sierra type 9. Automatic upshifts (when enabled) are triggered by the engine revs reaching a specified point if the throttle is open beyond a specified percentage. After the unit is placed in automatic mode (signified by the display flashing 'A' 3 times), keep an eye on the tachometer on the laptop and the shift lights on the gear display. The red bar to the right of the laptop screen indicates throttle position. When the revs are increased to 8000rpm the box automatically shifts up a gear. On downshifts, if the driver calls for a lower gear which would result in the engine speed increasing beyond specified maximum, then the request is placed in a queue and is only executed when the engine speed falls to a level where it is safe to make the shift. The shifts are only queued if the throttle remains closed. Opening the throttle will cancel any queued shifts. What this means on the track is that the driver can repeatedly hit the down paddle as he's approaching a corner and the electronics will shift the box automatically as the vehicle speed falls. All shifts are completed without use of the clutch and there is an automatic throttle blip on downshifts. As you can see in the video, the system is capable of shifting from 6th to 1st in less than 1 second! In reality, this sort of shift speed is rarely necessary and only cars with extreme braking performance are likely to require gears at this speed.

Category:

Autos & Vehicles

Tags:

• Geartronics
• paddleshift
• quaife
• sequential
• automatic
• shift

[brucksport]

pretty cool,, with this all you have to do while racing is concentrate  on the best race line,,.... i like