초록

Motion of a user exercising acts against an electric brake. The current flowing in the coil of the brake is controlled by an electronic circuit in accordance with a specified function from a computer or another electronic circuit.

대표청구항 ▼

A machine including a resistance control system for use by an individual comprising: first means disposed for engagement by at least one limb of said individual; electric brake of one of the hysteresis and friction types having a rotor and stator, said brake generates a resistance torque to rotary m

A machine including a resistance control system for use by an individual comprising: first means disposed for engagement by at least one limb of said individual; electric brake of one of the hysteresis and friction types having a rotor and stator, said brake generates a resistance torque to rotary motion of the rotor proportional to an electrical current flowing in the stator; second means for converting motion imparted to the first means by said individual to cause a rotary motion of the rotor of the brake; third means disposed for receiving a signal proportional to the desired resistance torque of the brake to oppose the motion of the individual; fourth means for measuring the torque exerted by the individual; fifth means for increasing the stator current when the desired torque exceeds the measured torque exerted by the individual by applying a voltage to the stator of the brake that is greater than the voltage necessary to maintain the measured torque in the steady state; and sixth means for removing inductive energy from the stator when the measured torque exerted by the individual exceeds the desired torque by maintaining a reverse voltage thereacross that is greater than the voltage necessary to achieve the measured torque in the steady state.