Drive unit for means of locomotion simultaneously drivable by human muscular strength and electric motors

A drive unit for a means of locomotion drivable simultaneously by drive energy provided by human muscular strength and by electric motors, comprising:

• an input shaft for transmitting drive energy generated from human muscular strength,
• an output shaft for delivering drive energy to a travel unit;
• a harmonic drive gearing arranged around a rotation axis and having a first wave generator, a first flexspline and a ring gear;
• an electric drive motor arranged around the rotation axis and having a stator and a rotor, wherein drive energy of the electric drive motor is transmittable to the output shaft via the harmonic drive gearing;
• a harmonic variation gearing arranged in a drive train between the input shaft and the output shaft and having a second wave generator, a second flexspline and a ring gear, the harmonic variation gearing being arranged such that the harmonic variation gearing receives drive energy of the input shaft obtained from human muscular strength and transmits the drive energy of the input shaft obtained from human muscular strength to the output shaft of the drive unit;
• an electric variation motor with a stator and a rotor, drive energy of the electric variation motor introduced into the harmonic variation gearing, wherein summed drive energy from the human muscular strength and the electric variation motor is transmittable to the output shaft by the harmonic variation gearing,
• wherein the ring gear of the harmonic drive gearing and the ring gear of the harmonic variation gearing are configured in a co-rotating manner relative to each other and transmit summed drive energy from the human muscular strength, the electric drive motor and the electric variation motor to the output shaft.