Engine protection device??? electrical "box", lockout to prevent wrong gear choice?? Options

[Mueller]

We don't read about people shifting into the wrong gear too often which ends in costly repairs, but when we do hear about it, it gives everyone a sick feeling knowing that big money is about to be spent.

Now it seems it wouldn't be too difficult to have a "box" that monitors engine RPM as well as what gear the driver is in and MPH. Of course the "box" is going to have to have some logic control with user inputs for different variables.

Basicly what we want to do is have the "box" tied to an electrical/mechanical device that will not allow you to put the car into a gear which the "box" has deemed unsafe.

So if you are in 4th @ 6500 and want to go to 3rd which will raise the rpms to 7000 (borderline redline)
the "box" will "okay" the gear choice and not interfer....well, due to some odd reason, the driver picks 2nd gear instead, the "box" knows that 7500 rpm is way too high and it gives a signal to the electrical/mechanical device and "blocks" the gear selection.

Now the only way the driver can put the car into a gear is: Stay in 4th or, shift into 5th or slow the car down enough so that the road speed will match the RPM/gear/MPH safety combination which is the "box" will be programmed for.

This is nothing new, Porsche used this logic on thier PDK transmission and RUF had this for his clutchpedal-less manual shifting cars.AFAIK, no one has this as an "add-on" device or to be used with a clutch pedal