From: Development and analysis of a novel add-on drive mechanism for motorizing a manual wheelchair and its step climbing strategy
Symbol
Value
Unit
Length of the links
l 0
0.75
m
l 1
0.5
l 2
0.34
Attachement positions
α
8
deg
x b
-0.14
z b
0.54
Center of gravity
M
85
kg
x g
0.099
z g
0.55