Hand Throttle Control Mod, questions

I don't think the throttle cut-off was implemented on the Gen II. Or at least if it was, it's at a certain % and doesn't cut off if it's not depressed a preset amount. I've been able to lightly trigger my brakes while still accelerating but I haven't tried a full bore attempt.

Having said that, the brakes (supposedly) have more stopping power than the car can provide so if you do have a panic stop you (should) still stop.

Experiment and see?

 

Welcome to PC hojosan.

My only thought is a legal one. In the state I live in, you must get a special certification on your license to drive a vehicle using hand controls. I know nothing of the laws in other states nor do I know if such a law is enforceable. On the other hand, insurance companies often look for any reason possible to deny coverage on a claim and that might be a big red flag if your vehicle is ever in an accident.

 

I would not recommend this mod. The benefits do not outweigh the risks.

 

I would like to do this mod on my car. Sometimes my students drivers don't push hard enough on the gas pedal.

 

This matter has been discussed before. However, to my knowledge no
member has posted developing/implementing anything.

Here's a good thread: http://priuschat.com/forums/gen-ii-prius-modifications/53700-throttle-glide-postion-button-mod.html

Here are two possible mechanical systems that may be a place to start:

Jeep Rubicon Express Hand Throttle Installation

Micro Adjust Control Heads

 

hojosan,

You give up/in far too easily.

I'm going to come clean on this. In the last sentence of one of my posts
in the 9/'08 thread cited earlier, I said simply,

"I have been messing with a low pressure air arrangement with variable
results for a few months now."

At that time no one picked up on this. At the time it appeared that an
electronic method would be the most elegant solution and I didn't want
to divert attention away from that possibility.

I have built and used a low pressure pnuematic go-pedal "finesse."
Unfortunately, before I could build a really slick system, there were
two deaths in my family that caused me to put the system away in a
"safe place," which of course I cannot now find. I then forgot about the
whole thing.

But I'm now looking for it, and I will find it and produce pictures.

Here is info on the essential parts, the two low pressure pneumatic
actuators one mounted to the go-pedal, the other hand-held:

Roughly full size:


Pneumatic actuator - Firestone Industrial

Specifications

If you are interested, I can provide a brief explanation of my pneumatic
finesse and it's operation. (I can't get to making a serious search for the bits
and take photos until this weekend.)

 

when still, the car revs the ICE to charge the batteries if you hit the gas and brake at the same time. Presumably, it does the same when rolling.

 

What about an (A OR B Switch). I'm thinking of buying an extra OEM Throttle. Then having a selector switch that can select Throttle 1 or Throttle 2. Using the OEM Additional throttle I think its possible to switch from 1 --> 2 and back without computer noticing (fingers crossed).

Need to find a multiple input switch that can switch all continuity to throttle 2 at flip of a switch (multiple connections simultaneously). Could use some sort of solenoid(s) but a (5x3) prong switch would be easiest. Need help finding that tho, not sure if that's available. ( Could be easy to add brake kill switch that reverts continuity to the throttle 1 which would be at zero throttle aka turn off throttle position holder). Brake kill switch probably involves solenoid(s) method (more difficult).

P.S. I have lots of rolling hills in my area that I've found that if you keep a steady throttle position you can easily save on the mpgs. For simplify I could go without the brake off switch (throttle 2 --> throttle 1 @ zero mph), and just remember to hit switch prior to braking. Its still possible to stop if you forget (fyi).

*Making a mechanical throttle holder/maintainer for throttle 2 shouldn't be extremely difficult.

 

See attachement