help me

[Burgerman]

It begins to act more, the further you push the stick forwards. Its not about speed, but the position of the stick. It acts like a restrictor plate, without actually having one. Its the electronic equivelent. Full forward stick = much less turning electronically.

The problem with that is that if you use this, combined with your already crazy low turn speed settings, it results in almost zero capability of steering when you are cruising along. So when you spot a big drain cover, a child runs out, or you need to correct the direction for another reason, say to go through a narrow gap. You cant!

So while it makes it possible for YOU to be able to go in a straight line (while having no fine control capability with your hand), it also prevents proper control in the event you need to correct your course. If I were a driving instructor I would say that you were not in full control of the vehicle. Especially at 8mph.

[q700m]

no, as soon as I slow down it turns well, even at low steering speeds, I keep the turn acceleration and deceleration at 100 per cent

[Burgerman]

But you shouldnt have to slow down to correct the steering I steer ALL of the time, at every speed, especially when going fast. To avoid obstacles, to aim for a gap between a wall and a tree etc. Or to avoid a dog that ran out or whatever. Not being able to do that, and you really cannot because I tested this, means I wasnt properly in safe control.

Its like driving a car but it will only steer when you slowing down... It wont be possible to steer it while accelerating.

Allso in a chair I regularly accelerate hard and turn/correct the chairs path as I approch a doorway etc. And you literally cant!

It may be the best you can do without some mechanical changes, and control system changes. But I dont consider that very safe. Next tme you crash it will be for a different reason!

[q700m]

I always slow down in the situations you mentioned .
then by doing all the incidents I hope not to have any more accidents

[Burgerman]

I hope so too. But I steer all of the time. You kind of have to.
Its like driving your car where steering wheel vanishes every time you put your foot on the gas... Best of luck with that!

[q700m]

I hope so too. But I steer all of the time. You kind of have to.
Its like driving your car where steering wheel vanishes every time you put your foot on the gas... Best of luck with that!

but with the limiting plate, which you recommended, does it not do the same thing?

[Burgerman]

Yes. The real problem is your hand and joystick ability. You need to find a better joystick, maybe longer, or some way to fix your arm so it can be controlled with fingers or a seperate control to steer. You need an expert to look at you, watch you drivi, and test many things. Not least you need a 6mph (10kph) chair for better control, and possibly rear drive for direcional stability. So you can use LESS front drive percentage, and higher turn speed percentage. So you can steer properly rather than removing the ability!

[q700m]

Code: Select all

Front Wheel Drive Type selects specific specialist software for front wheel drive wheelchairs

If Front Wheel Drive Type A, this parameter electronically alters the shape of the joystick gate. This has the effect of damping the turning rate of the wheelchair between the 9 o clock and 3 o clock joystick positions.

If Front Wheel Drive Type is set to B, this parameter sets threshold which, if exceeded, then both forward and turn speeds are reduced, but the turning radius of the wheelchair remains unchanged. Type B can be used to increase the steerability of the wheelchair at speed.

which practically means ?

[Burgerman]

Its as clear as mud. TRY it.

[steves1977uk]

Here's what an engineer from PGDT told me in an e-mail some time ago about Front Wheel Drive settings...

With the Pilot+ there is a parameter called Front Wheel Drive, which is set to either on or off.

In addition there is another setting called Front Wheel Drive Rate, which adjusts the operation of the specialist software for Front Wheel Drive Wheelchairs.

The programmable range is 0% to 100%. If set to 0%, then conventional rear wheel drive control is always applied. The higher the value selected the more pronounced the impact of either front wheel drive algorithm. A higher value may be suitable for faster front wheel drive wheelchairs.

This part is the same as the R-Net.

Steve

[q700m]

Code: Select all

Front Wheel Drive Rate

where it is located?

[johnbae1980]

Code: Select all

Front Wheel Drive Rate

where it is located?

oh.. please stop asking questions and just try to find the section that you asked or do what they answered for you.

I think you have a dongle and R-net software. right?

I have looked over all your questions in your post.

many guys already answered your questions and tried to help you.

Also, I think you can find some answers by own yourself what you asked or need.

I have cerebral palsy and also difficulty using my arms and hands. but I don't ask every single question about programming my chair what I need.

[Burgerman]

The HIGHER you set this, the LESS steering you have when the joystick is pushed forwards.
A and B are just different shaped "restrictor plates"... I dont know what shape as theres no image!

A feels like a SOFTWARE version of having a diamond shaped restrictor plate. You already have it set to 100 so that combined with your TURN SPEED setting of 8 or even less the chair is practically unsteerable with the joystick pushed fully forwards. I know because I tried it. It doesent matter how epileptic you are it just goes straight!

Which is crazy to me, but if thats what you want then thats what you have!

The reason it exists is because a FRONT DRIVE wheelchair is not directionally stable. It is an UNSABLE design. So that even a tiny amount of turn input causes it to want to turn super tight and spin around if traveling fast. It is a way to try and make a front drive chair drivable at speed. An attempt to stop physics spinning the chair. To make it less turn sensitive at speed. YOU are using it to stop your mid drive chair turning when you go fast because you have inadequate hand control accuracy. The two settings combined basically stop it steering pretty much completely at speed.

This is the last time. You need specialist help in italy that can make physical / mechanical changes so that you can better control the chair. And a slower 8 or 10kph motor, as well as a rear drive (directionally STABLE) chair. And lower less flexible seating. You are trying to fix a bunch of physical mechanical and user problems with programming and you cannot do that with programming alone.

[johnbae1980]

Code: Select all

Front Wheel Drive Rate

where it is located?

oh.. please stop asking questions and just try to find the section that you asked or do what they answered for you.

I think you have a dongle and R-net software. right?

I have looked over all your questions in your post.

many guys already answered your questions and tried to help you.

Also, I think you can find some answers by own yourself what you asked or need.

I have cerebral palsy and also difficulty using my arms and hands. but I don't ask every single question about programming my chair what I need.

https://drive.google.com/file/d/1u9vUeJ ... drive_link

Please read all of Chapter 3.
You might already know all that.
But who knows if you can figure something new out?
I just hope it can help you out, even if a little bit.

[Burgerman]

Its asking me to sign up to an advertising and marketing data collection company.

[johnbae1980]

Its asking me to sign up to an advertising and marketing data collection company.

sorry about my mistake
I shared the PGDT's instruction manual. I just forgot to make it open to everyone. now, everyone can open the pdf file