Search Results

The intended use of the Model DX Micro-Computer Control is to activate and control power wheelchair motion.

The Model Dx Controller is a series of electronic, microcomputer based, motion control devices for use with power wheelchairs. Their intended function and use is to activate and control power wheelchair motion. Additionally, they provide a method of adjusting, selecting and programming the type of power wheelchair performance characteristics which best suit the specific control needs of the wheelchair user. The Dx product line includes a motor controller power module with microprocessor, and a variety of joystick options and accessories which are used to perform various functions. The power module, which contains the system microprocessor, is housed in a pressure die cast aluminum enclosure. The power module stores preprogrammed operating functions, processes user inputs and issues commands to the wheelchair motors. The joystick options are used to engage wheelchair motion and to steer the chair. The options and accessories are used to program the wheelchair performance parameters and to perform additional functions as needed by the wheelchair user.

The Action Cat Scooter with DS60 Controller is intended to be used to provide mobility to persons restricted to a seated position.

As indicated above, the Action Cat Scooter with DS60 Controller is intended for use to provide mobility to persons restricted to a seated position. The scooter has a total weight of 160 pounds (including batteries), and its overall width, track, and wheelbase are 24", 34", and 46", respectively. All upholstery on the device is flame rated to FMVSS302 and CMVSS302. The maximum grade is 9 degrees with a 300 pound load, and the leakage current is less than 100 amperes. The maximum load is 300 pounds, and the maximum speed for the scooter is 5 (±1) mph. The scooter does not have separate "slow," "normal," and "fast" speed control modes; instead, the speed of the vehicle simply is determined on a continuous range by how far the user pushes the speed control bar/tiller. The braking system for the scooter is electromechanical. Activation of the throttle speed control (either forward or reverse), causes the engagement of an electromagnet which overcomes spring pressure and releases the brake. Releasing the throttle causes the motor control board to induce dynamic braking and reduce speed. Once motor revolution reaches zero, the electromagnet will release, allowing the spring pressure to apply the brake. As an additional feature, the scooter will not operate if the brake is disconnected. The brake is designed to hold a 400 pound load on a 15 degree incline. On level ground with dry conditions and a 300 pound load, braking time from a top speed of 6 mph to zero is 1 second and requires a distance of 5 feet. The Action Cat Scooter with DS60 Controller uses two 12 volt gel cell batteries. The scooter's range on a standard charge varies according to temperature and battery condition, but the average range is approximately 25 miles. The front approach angle for the Action Cat Scooter with DS60 Controller is 71 degrees, and the rear departure angle is 13 degrees. At the scooter's center, the ground clearance from the chassis is 3.0". Likewise, the maximum curb clearance is 3.0". The breakover angle is 10 degrees, and the minimum radius at which the Action Cat Scooter with DS60 Controller will not tip (at maximum speed) is 6 feet. The controller for the scooter is a Model DS60 system for DC motor control applications. The DS60 Controller is designed to operate with a nominal 24 volt battery input and to yield a maximum output current of 60 amperes. It also is designed to control a single conventional permanent magnet DC motor with a solenoid-controlled motor brake. The controller incorporates motor load compensation which provides precise motor control over a wide range of driving conditions, thereby maintaining the selected speed of the scooter at a constant level, regardless of the surface type or grade on which the vehicle is driven. This feature ensures less roll-back when stopping the Action Cat Scooter on a slope. The correct level of load compensation depends on the type of motor used and the length of the wiring, and is easily set using the separate handheld DS Programmer. The programmable features of the DS60 Controller include forward/reverse acceleration, forward/reverse deceleration, motor resistance, etc. It should be noted, however, that although the DS60 Controller for the modified Cat Scooter is programmable, all parameters for the controller will be set only by the factory (i.e., Invacare) prior to sale, and no modifications will be made by either the retailer or the user of the scooter. The DS100 Programmer will not be available for purchase. The DS60 Controller is a single printed circuit board fixed to an aluminum base. A plastic vacuum-molded case protects the electronics of the DS60 Controller. The DS60 Controller also is protected against accidental reverse battery connection. Several accessories are available through Invacare for the modified Action Cat Scooter. These options are: a basket, antitipper components, a flat-free insert, an extended throttle lever, a safety flag, a crutch/cane carrier, and a spare key set. The Action Cat Scooter with DS60 Controller also is available in a compact style which measures 43½ inches in length (versus 50" for the regular size scooter).