Aviva RX-20 vs Bounder

[Flagmax]

I am just reporting my findings. This isn't my first chair but the first that I have been trying to tune it to my likings. The main problem with Aviva RX-20 is its jerkiness. It was just to jumpy when doing crab moves. Now with "Modules > Power Module","Power Module - Load Compensation","Load Compensation Percentage","35%", all jerkiness have stopped, it goes up ramps just fine. This is magic setting to remove the aggressiveness. The default 70% is too high.

The service manual says :

If the wheelchair does not perform as desired, the effect of the adaptive load compensation can be adjusted using the Load Compensation Percentage parameter:

• reduce value of this parameter if wheelchair drives more aggressively than anticipated.

• increase value of this parameter if wheelchair drives more sluggish than anticipated. Load Compensation Percentage is only applied when Adaptive Load Comp Enabled is set to on.

I am currently set it up like this:
"Functions > Drive REM2XX > Indoor","Forward","Max Forward Speed","60%", "Default","25%"
"Functions > Drive REM2XX > Indoor","Forward","Min Forward Speed","30%", "Default","15%"
"Functions > Drive REM2XX > Indoor","Forward","Forward Acceleration","40%", "Default","40%"
"Functions > Drive REM2XX > Indoor","Forward","Forward Deceleration","70%", "Default","70%"
"Functions > Drive REM2XX > Indoor","Reverse","Max Reverse Speed","50%", "Default","50%"
"Functions > Drive REM2XX > Indoor","Reverse","Min Reverse Speed","30%", "Default","30%"
"Functions > Drive REM2XX > Indoor","Reverse","Reverse Acceleration","40%", "Default","40%"
"Functions > Drive REM2XX > Indoor","Reverse","Reverse Deceleration","80%", "Default","80%"
"Functions > Drive REM2XX > Indoor","Turn","Turn Boost at Max Speed","300%", "Default","200%"
"Functions > Drive REM2XX > Indoor","Turn","Max Turn Speed","50%", "Default","35%"
"Functions > Drive REM2XX > Indoor","Turn","Min Turn Speed","20%", "Default","20%"
"Functions > Drive REM2XX > Indoor","Turn","Turn Acceleration","80%", "Default","50%"
"Functions > Drive REM2XX > Indoor","Turn","Turn Deceleration","80%", "Default","75%"
"Functions > Drive REM2XX > Indoor","Stability","Turn Transition","100%", "Default","100%"
"Functions > Drive REM2XX > Indoor","Performance","Power","100%", "Default","100%"
---
"Functions > Drive REM2XX > Outdoor","Forward","Max Forward Speed","80%"
"Functions > Drive REM2XX > Outdoor","Forward","Min Forward Speed","30%"
"Functions > Drive REM2XX > Outdoor","Forward","Forward Acceleration","40%"
"Functions > Drive REM2XX > Outdoor","Forward","Forward Deceleration","70%"
"Functions > Drive REM2XX > Outdoor","Reverse","Max Reverse Speed","80%"
"Functions > Drive REM2XX > Outdoor","Reverse","Min Reverse Speed","30%"
"Functions > Drive REM2XX > Outdoor","Reverse","Reverse Acceleration","40%"
"Functions > Drive REM2XX > Outdoor","Reverse","Reverse Deceleration","80%"
"Functions > Drive REM2XX > Outdoor","Turn","Turn Boost at Max Speed","300%"
"Functions > Drive REM2XX > Outdoor","Turn","Max Turn Speed","60%"
"Functions > Drive REM2XX > Outdoor","Turn","Min Turn Speed","20%"
"Functions > Drive REM2XX > Outdoor","Turn","Turn Acceleration","80%"
"Functions > Drive REM2XX > Outdoor","Turn","Turn Deceleration","80%"
"Functions > Drive REM2XX > Outdoor","Stability","Turn Transition","80%"
"Functions > Drive REM2XX > Outdoor","Performance","Power","100%"
---
"Functions > Drive REM2XX > Fast","Forward","Max Forward Speed","100%"
"Functions > Drive REM2XX > Fast","Forward","Min Forward Speed","30%"
"Functions > Drive REM2XX > Fast","Forward","Forward Acceleration","40%"
"Functions > Drive REM2XX > Fast","Forward","Forward Deceleration","60%"
"Functions > Drive REM2XX > Fast","Reverse","Max Reverse Speed","100%"
"Functions > Drive REM2XX > Fast","Reverse","Min Reverse Speed","30%"
"Functions > Drive REM2XX > Fast","Reverse","Reverse Acceleration","40%"
"Functions > Drive REM2XX > Fast","Reverse","Reverse Deceleration","80%"
"Functions > Drive REM2XX > Fast","Turn","Turn Boost at Max Speed","300%"
"Functions > Drive REM2XX > Fast","Turn","Max Turn Speed","60%"
"Functions > Drive REM2XX > Fast","Turn","Min Turn Speed","20%"
"Functions > Drive REM2XX > Fast","Turn","Turn Acceleration","80%"
"Functions > Drive REM2XX > Fast","Turn","Turn Deceleration","80%"
"Functions > Drive REM2XX > Fast","Stability","Turn Transition","80%"
"Functions > Drive REM2XX > Fast","Performance","Power","100%"

[Burgerman]

Re: Aviva RX-20 vs Bounder

Postby Flagmax » Today, 06:02
I am just reporting my findings. This isn't my first chair but the first that I have been trying to tune it to my likings. The main problem with Aviva RX-20 is its jerkiness. It was just to jumpy when doing crab moves. Now with "Modules > Power Module","Power Module - Load Compensation","Load Compensation Percentage","35%", all jerkiness have stopped, it goes up ramps just fine. This is magic setting to remove the aggressiveness. The default 70% is too high.

The service manual says :

If the wheelchair does not perform as desired, the effect of the adaptive load compensation can be adjusted using the Load Compensation Percentage parameter:

• reduce value of this parameter if wheelchair drives more aggressively than anticipated.

• increase value of this parameter if wheelchair drives more sluggish than anticipated. Load Compensation Percentage is only applied when Adaptive Load Comp Enabled is set to on.

I WOULD TURN OFF ADAPTED LOAD COMPENSATION AND SET COMPRENSATION MANUALLY TO AT LEAST AS HIGH AS STOCK IF NOT MORE AS DEFAULT IS ALWAYS TOO LOW ON EVERY CHAIR I EVER PRIGRAMMED OR CONFIGURED. IF ITS "JUMPY" REDUCE TURN BOOST OR TURN SPEED AT LOW AND HIGH ENDS. OR YOU LOSE EFFECTIVENESS OF MOTOR COMPENSATION UNDER HIGH LOADS WHEN ITS REQUIRED.

YOU DONT OR WONT NEED AN INDOOR PROFILE ONCE SETUP PROPERLY. SO I WILL IGNORE THAT.
YOU ONLY NEED 1 PROFILE SET LIKE THIS.
USE SPEED 5 OR MAX OUTDOORS. SPEED 1 INDOORS.
YOU ARE USING LOW COMPENSATION TO OVER UP SOME SETTINGS THAT MAKE IT JERKY!!!

PROFILE NOT NEEDED
I am currently set it up like this:
"Functions > Drive REM2XX > Indoor","Forward","Max Forward Speed","60%", "Default","25%"
"Functions > Drive REM2XX > Indoor","Forward","Min Forward Speed","30%", "Default","15%"
"Functions > Drive REM2XX > Indoor","Forward","Forward Acceleration","40%", "Default","40%"
"Functions > Drive REM2XX > Indoor","Forward","Forward Deceleration","70%", "Default","70%"
"Functions > Drive REM2XX > Indoor","Reverse","Max Reverse Speed","50%", "Default","50%"
"Functions > Drive REM2XX > Indoor","Reverse","Min Reverse Speed","30%", "Default","30%"
"Functions > Drive REM2XX > Indoor","Reverse","Reverse Acceleration","40%", "Default","40%"
"Functions > Drive REM2XX > Indoor","Reverse","Reverse Deceleration","80%", "Default","80%"
"Functions > Drive REM2XX > Indoor","Turn","Turn Boost at Max Speed","300%", "Default","200%"
"Functions > Drive REM2XX > Indoor","Turn","Max Turn Speed","50%", "Default","35%"
"Functions > Drive REM2XX > Indoor","Turn","Min Turn Speed","20%", "Default","20%"
"Functions > Drive REM2XX > Indoor","Turn","Turn Acceleration","80%", "Default","50%"
"Functions > Drive REM2XX > Indoor","Turn","Turn Deceleration","80%", "Default","75%"
"Functions > Drive REM2XX > Indoor","Stability","Turn Transition","100%", "Default","100%"
"Functions > Drive REM2XX > Indoor","Performance","Power","100%", "Default","100%"

---
"Functions > Drive REM2XX > Outdoor","Forward","Max Forward Speed","80%" ??? 100!!!
"Functions > Drive REM2XX > Outdoor","Forward","Min Forward Speed","30%" WHATEVER YOU WANT INDOOR SPEED TO BE WHEN SET SLOW.
"Functions > Drive REM2XX > Outdoor","Forward","Forward Acceleration","40%" PERSONAL PREFERENCE BUT MINE WOULD BE 80 OR MORE. OR YOU CANT FEEL WHAT COMPENSATION IS DOING AS YOU CHANGE THAT.
"Functions > Drive REM2XX > Outdoor","Forward","Forward Deceleration","70%" SET AS LOW AS POSSIBLE SO THE CHAIR ROLLS. YOU DONT WANT IT JERKY AND BACK STICK BRAKING IS THE BRAKE. YOUR CAR DOESENT BRAKE HARD WHEN YOU LET GO OF THE GAS AS IT WOULD BE UNCOMFORTABLE!
"Functions > Drive REM2XX > Outdoor","Reverse","Max Reverse Speed","80%" USUALLY 40 APPROX.
"Functions > Drive REM2XX > Outdoor","Reverse","Min Reverse Speed","30%" SET SLOWER THAN YOUR INDOOR FORWARD SPEED ON SLOW SETTING.
"Functions > Drive REM2XX > Outdoor","Reverse","Reverse Acceleration","40%" SET HIGHER THAN FORWARD ACCELERATION. AS IT IS TO A LOWER SPEED SO TAKES LONGER.
"Functions > Drive REM2XX > Outdoor","Reverse","Reverse Deceleration","80%" 100
"Functions > Drive REM2XX > Outdoor","Turn","Turn Boost at Max Speed","300%" SET MUCH LOWER SO ITS NOT JERKY, DO NOT REDUCE COMPENSATION AS THAT CAUSES MANY OTHER ISSUES.
"Functions > Drive REM2XX > Outdoor","Turn","Max Turn Speed","60%" WAY TOO HIGH. SET SO ITS SMOOTH, NOT JERKY WITH STOCK COMPENSATION SETTINGS.
"Functions > Drive REM2XX > Outdoor","Turn","Min Turn Speed","20%" SET SO ITS DRIVES ACCURATELY AND GOOD INDOORS AT LOWEST SPEED SETTING
"Functions > Drive REM2XX > Outdoor","Turn","Turn Acceleration","80%" 100 OR A MIN OF 90
"Functions > Drive REM2XX > Outdoor","Turn","Turn Deceleration","80%" 100 THESE TWO ARE ALREADY REDUCED EVEN WHEN SET TO 100, IN OEM SETTINGS AS A TURN SPEED AND TURN ACCELERATION SCALER, I INCREASE THAT TOO. YOU WANT TO BE THE ONE IN CONTROL RIGHT?
"Functions > Drive REM2XX > Outdoor","Stability","Turn Transition","80%" DONT KNOW WHAT THAT DOES
"Functions > Drive REM2XX > Outdoor","Performance","Power","100%"
---
NOT NEEDED.
"Functions > Drive REM2XX > Fast","Forward","Max Forward Speed","100%"
"Functions > Drive REM2XX > Fast","Forward","Min Forward Speed","30%"
"Functions > Drive REM2XX > Fast","Forward","Forward Acceleration","40%"
"Functions > Drive REM2XX > Fast","Forward","Forward Deceleration","60%"
"Functions > Drive REM2XX > Fast","Reverse","Max Reverse Speed","100%"
"Functions > Drive REM2XX > Fast","Reverse","Min Reverse Speed","30%"
"Functions > Drive REM2XX > Fast","Reverse","Reverse Acceleration","40%"
"Functions > Drive REM2XX > Fast","Reverse","Reverse Deceleration","80%"
"Functions > Drive REM2XX > Fast","Turn","Turn Boost at Max Speed","300%"
"Functions > Drive REM2XX > Fast","Turn","Max Turn Speed","60%"
"Functions > Drive REM2XX > Fast","Turn","Min Turn Speed","20%"
"Functions > Drive REM2XX > Fast","Turn","Turn Acceleration","80%"
"Functions > Drive REM2XX > Fast","Turn","Turn Deceleration","80%"
"Functions > Drive REM2XX > Fast","Stability","Turn Transition","80%"
"Functions > Drive REM2XX > Fast","Performance","Power","100%"