Abstract: A prosthetic or orthotic device is described for implementation of a locomotion activity. The prosthetic or orthotic device may cause an actuator to perform a provide a first torque. Based on the first torque and one or more values of one or more parameters, the prosthetic or orthotic device may perform a first portion of a flexion action. Subsequent to or during performance of the first portion of the flexion action, the prosthetic or orthotic device may determine an angle associated with the prosthetic or orthotic device. Based on the angle, the prosthetic or orthotic device may perform an adjustment of the one or more parameters. Based on the adjustment, the prosthetic or orthotic device may perform a second portion of the flexion action. For example, the prosthetic or orthotic device may perform the second portion while gradually increasing the one or more values.

Abstract: A powered prosthetic or orthotic device (POD) having gait controls is disclosed. The POD may include a control system that modifies the POD's gait controls based on the activity of the user. For example, the POD may have specific gait controls for a slow walk activity, and different gait controls for a fast walk activity. Each activity may have one or more phases and one or more subphases. For example, a standing-up activity may include a stance phase and may include an extension and braking subphase. The POD may modify the gait controls based on the phase and sub-phase of the activity. Thus, the behavior of the POD may be improved for the current activity of the user and may provide mobility, safety, and support in a variety of different terrains and tasks.

Abstract: The invention provides a controller for determining the presence of faults within a fuel injection system of an engine system. The engine system comprises a first injector and at least one further injector, each injector comprising a needle control valve and a pressure control valve. The controller comprises: inputs for receiving data relating to a first engine system parameter; outputs for outputting a control function for controlling the injector valves of each of the injectors, and; a processor for controlling the control function output from the controller.

Abstract: The invention provides a controller for determining the presence of faults within a fuel injection system of an engine system. The engine system comprises a first injector and at least one further injector, each injector comprising a needle control valve and a pressure control valve. The controller comprises: inputs for receiving data relating to a first engine system parameter; outputs for outputting a control function for controlling the injector valves of each of the injectors, and; a processor for controlling the control function output from the controller.