#$%^&*AU2009230795B220120112.pdf#####ABSTRACT OF THE DISCLOSURE A method of setting values of a multiplicity of performance parameters of a power driven wheelchair into a controller thereof for use by the controller in the operation of the wheelchair by a user comprises the steps of: grouping the multiplicity of performance parameters of the wheelchair into at 5 least two groups, each group including more than one performance parameter; for each group, (a) establishing a corresponding relationship between a selected performance parameter of the group and each of the other performance parameters of the group; and (b) presetting the established relationships into the controller of the wheelchair; determining a value for the selected performance parameter of each group based on the user's capabilities of operating the wheelchair; entering the determined value 0 for the selected performance parameter of each group into the controller; deriving automatically by the controller for each group a value for each of the other performance parameters of the group based on the entered value of the selected performance parameter of the group and the corresponding established relationships of each of the other performance parameters with the selected performance parameter of the group; and storing the entered and derived values of the performance parameters into 5 the controller for use thereby in the operation of the wheelchair by the user.1/5 38 34 0 0 40 0 3V20 22 24V USER BATTERY INTERFACE LEF T 26 EEPROM 24 12 R .IGH T SIDE RSIDE WHEEL CONTROLLER DRIVE WHEE 307 28 WHEEL 14 31 Fig. 1 (BACKGROUND) SPEED FORWARD TURNING REVERSE 95 20 35 75 17 30 55 15 25 35 10 20 15 10 10 Fig. 2