help me

[shirley_hkg]

please list your requests like this
1) Take a video

2) Take a video

3) Take a video

so I understand what you want to know

thank you very much

[Burgerman]

[q700m]

I only live with my vacant parents, they cannot give me a video as I tell them
that's why I can't do it

[daveonwheels]

i believe he means elderly 'anziano'

[q700m]

i believe he means elderly 'anziano'

yes

[daveonwheels]

Non possiamo aiutarti senza un video

[Burgerman]

Several people inc myself, lenny, have suggested shaped restrictor plates on maybe 10 different posts. But so far we just get the standard nonsense about reducing compnsattion and setting everything to 1...

So?

[q700m]

Several people inc myself, lenny, have suggested shaped restrictor plates on maybe 10 different posts. But so far we just get the standard nonsense about reducing compnsattion and setting everything to 1...

So?

I did not understand what the plates are.
then I said , if I lower the compensation and put all the acc and decelerations of the turn at 100 no to 1

[Burgerman]

Your joystick moves in a circle. It allows your hand to turn the wheelchair while rolling forwards.

A DIAMOND shaped gate will not allow that.

Here are TWO different ones. They do not allow your joystick to go left or right while going forwards. THAT is one thing that wil help you.

Orange one means you can go backwards or forwards. OR left or right.

Blue one means its very hard to go left or right while traveling forwards. Its less extreme.

[q700m]

is it not possible to decrease forward speed as soon as the styck goes a little to the right or left through programming?

[Burgerman]

Not normally because that is called STEERING which most people want and need in order to correct the direction they are traveling in.

And yes... Sort of. The settings for front drive do exactly that. Because those chairs are unstable and want to turn/spin. But you claimed it was worse! Which is actually impossible... Or you did not try or configure it correctly. It needs TESTING and retesting. But I think that your control skills are so bad that you cannot tell.

So what about the restrictor plate? THAT will do exactly what you wanted???

[q700m]

Front Wheel Drive Type
FWD Acceleration Limit
Front Wheel Drive
Advanced Electronic Stability
AES Rate
can you explain to me what happens if I change
these parameters one by one?

[Burgerman]

You just ignored my question again.

FROM PG DRIVES HELP:

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.

You want B as far as I can tell. BOTH feel horrible to me. But may be what you need.

[Burgerman]

Front Wheel Drive


Front Wheel Drive adjusts the operation of the specialist software for Front Wheel Drive Wheelchairs.
This selects specialist software for front wheel driven wheelchairs.
The programmable range is 0% to 100% in steps of 1%.

If set to 0%, then “normal” software for rear wheel driven wheelchairs is employed.
If set to any other value then front wheel drive software is employed. A higher value makes the software more suitable for faster wheelchairs.

This REDUCES turn rate when you are going fast. But you have it set so low to begin with that its hard to see how you could feel any difference. This is the most important setting in your case.
TEST!!!

[Burgerman]

Advanced Electronic Stability


Advanced Electronic Stability sets whether the specialist stability software is turned on.
If set to On, AES detects if one wheel is running at a higher load and hence is running more slowly. If so, the speed of the other wheel is reduced accordingly to compensate for any steering offset.
AES can be used to minimize front wheel drive spins, fish-tailing and veering, both on the level and on a camber. The overall effect is to compensate for the wheelchair’s centre-of-gravity being shifted from the axis of the drive wheels, as is the case on front wheel drive chairs.

If set Off, then the function is disabled.

AES Rate


AES Rate sets the rate of adjustment of Advanced Electronic Stability.
This sets the rate of adjustment between the wheels under uneven loads. The recommended value is 55% and should not be adjusted without consulting PGDT.
A lower value will increase the strength of AES, which could result in the wheelchair feeling “twitchy” on turns.

The overall programmable range is 40% to 100%.

This uses extra motor compensation to detect if a chair is turning tighter than intended as all front drive chairs do and attempts to correct things to stop a turn tightening up. You probably wont like this. Setting this above 50 will make the chair twitchy.
It does NOT stop the chair changing direction if YOU command it to do so. Only due to load or say a hole in the road...

[Burgerman]

These are all obvious by "feel" to me. However the way you use a joystick I doubt you wil be able to feel what is actually happening. A RESTRICTOR plate for your joystick will give you much more control. But you keep refusing to reply or talk about it.

[q700m]

These are all obvious by "feel" to me. However the way you use a joystick I doubt you wil be able to feel what is actually happening. A RESTRICTOR plate for your joystick will give you much more control. But you keep refusing to reply or talk about it.

the problem is where to find the plate and who mounts it?

[q700m]

[quote="q700m"]Front Wheel Drive Type
FWD Acceleration Limit
Front Wheel Drive
Advanced Electronic Stability
AES Rate
have you tried, on which chair, does it work?

[Burgerman]

Who makes it?
Who mounts it?
Either you do. Or as has been said earier you need someone like me with a brain, and some ability to take charge and sort your problems out LIKE ME but over there. And that means finding some expert that has these abilities. Which is not going to be easy.

I have never seen any user or chair that DOESENT need properly setting up, configuring and customising. If you were here I could LOOK and see what exactly you need. And FIX it. You cannot do that. Programming alone will never be enough.

Have I tried it YES.
Which chair? ALL chairs.

[q700m]

only Front Wheel Drive = 100%
I solved, it is as if I had lowered the engine compasation

[q700m]

only Front Wheel Drive = 100%
I solved, it is as if I had lowered the engine compasation

I have not tried lower values

[Burgerman]

It does not lower compensation. It REDUCES turn rates when the stick is fully forwards. You said it made it worse!

Anyway, you have not solved it. You have made a bad situation slightly better. But you still dont have any proper control. You must see an expert that will take the bull by the horns and do whatever physical changes, input device changes, gate shapes, etc and changes to the chair that you need. Because removing the ability to turn at speed is maybe making it possible for you to move around in a straght line. But thats not really good enough.

Now do a 5 minute video of you driving in various places and conditions.

[q700m]

It does not lower compensation. It REDUCES turn rates when the stick is fully forwards. You said it made it worse!

Anyway, you have not solved it. You have made a bad situation slightly better. But you still dont have any proper control. You must see an expert that will take the bull by the horns and do whatever physical changes, input device changes, gate shapes, etc and changes to the chair that you need. Because removing the ability to turn at speed is maybe making it possible for you to move around in a straght line. But thats not really good enough.

Now do a 5 minute video of you driving in various places and conditions.

important is that strange things cannot happen like what happened in 1 post with low engine comnpence?

[Burgerman]

With your level of control anything can happen. Now you have almost zero steering when going forward. So any corrections you need to make, you cant!

But no the last problem was because you had TWO things wrong. You had turn and min turn accel far far too low. Same with the turn deceleration settings.
And you had innective compensation - too low. BOTH these things are evil if you need a safe chair!

But now you cant steer as you go along! Or almost no turn ability at all at speed.

Its better for you than before. But I tried those settings A week ago. I think that its unusable. I cannot steer! When going along a road edge for e.g I cannot add any correction to keep it headed in the correct direction. But if it works for you...

What happened to the "it made it worse" when I asked you to test this previously??

Now do a 5 minute video of you driving in various places and conditions.

[q700m]

Front Wheel Drive Type
FWD Acceleration Limit
Front Wheel Drive
Advanced Electronic Stability
AES Rate
I used to mix all these paremeters and it was worse.
I have now changed only this

Front Wheel Drive

and that's fine with me

[q700m]

can I use several profiles or do they negatively affect driving and the control unit?

[Burgerman]

You can HAVE as many profiles as you want.
But you only NEED one.

Why do you want more than 1?

Remember that one single profile shoud be configured to be super slow on speed 1. And max speed on speed 5.

Why would you want more profiles???

[q700m]

I like having multiple profiles.
can the left flag switch only be used to change profiles and not the mode?
thank you very much for all the trouble and help

[Burgerman]

Not sure. Dont think so. But the right flag switch changes speed anyway.

I have 1 drive profile. More are pointless once the chair is programmed properly.

[q700m]

Front Wheel Drive
acts at high speed, but at what speed does it start to act?