Method for controlling an artificial orthotic or prosthetic knee joint

A method to control an artificial orthotic or prosthetic knee joint, the method comprising:

• providing an inertial sensor or inertial angle sensor, a below-knee component positioned on the orthotic or prosthetic knee joint, and a resistance device, the below-knee component including a sole member;
• determining sensor data via the inertial sensor or inertial angle sensor during use of the orthotic or prosthetic knee joint;
• changing a flexion resistance applied by the resistance device using the sensor data;
• determining a linear acceleration at a level of the sole member with the sensor data;
• comparing the determined linear acceleration with at least one threshold value;
• reducing the flexion resistance if the threshold value is reached;
• using the linear acceleration as a basis for the control.

A method to control an artificial orthotic or prosthetic knee joint, the method comprising:

• providing at least one sensor, a below-knee component positioned on the orthotic or prosthetic knee joint, and a resistance device, the below-knee component including a sole member, the at least one sensor including an inertial sensor and an acceleration sensor;
• determining sensor data via the at least one sensor during use of the orthotic or prosthetic knee joint;
• changing a flexion resistance applied by the resistance device using the sensor data;
• determining a linear acceleration at a level of the sole member with the sensor data;
• reducing the flexion resistance if the linear acceleration is zero in a horizontal direction.