Drive device for an electric bicycle and electric bicycle
AssigneePorsche eBike Performance GmbH
InventorKorbinian Lammel
Life of this patent
Estimating the term…
Abstract
A drive device for an electric bicycle has a gearbox with a first drive shaft, a second drive shaft and an output element. Torque of a first electric motor can be coupled into the gearbox via the first drive shaft. Torque of a second electric motor can be coupled into the gearbox via the second drive shaft. Torque can be removed from the gearbox via the output element. The first and second drive shafts run parallel to each other. One of the two drive shafts is guided through the other of the two drive shafts.
Claims17
A drive device for an electric bicycle, the drive device comprising:
- a gearbox having a first drive shaft, a second drive shaft and an output element, wherein torque from a first electric motor is couplable into said gearbox via said first drive shaft and torque from a second electric motor is couplable into said gearbox via said second drive shaft;
- said output element being configured to dissipate torque from said gearbox;
- said first drive shaft and said second drive shafts run parallel to one another;
- and,
- one of said first drive shaft and said second drive shaft being guided through an other one of said first drive shaft and said second drive shaft.
An electric bicycle comprising:
- a drive device for an electric bicycle, the drive device including a gearbox;
- said gearbox having a first drive shaft, a second drive shaft and an output element, wherein torque from a first electric motor is couplable into said gearbox via said first drive shaft and torque from a second electric motor is couplable into said gearbox via said second drive shaft;
- said output element being configured to dissipate torque from said gearbox;
- said first drive shaft and said second drive shaft run parallel to one another;
- one of said first drive shaft and said second drive shaft being guided through an other one of said first drive shaft and said second drive shaft;
- a down tube defining a main direction of extension;
- and,
- said first drive shaft and said second drive shaft extend parallel to said main direction of extension of the down tube.
A drive device for an electric bicycle, the drive device comprising:
- a gearbox with a first drive shaft, a second drive shaft and an output element, wherein torque from a first electric motor is couplable into said gearbox via said first drive shaft and torque from a second electric motor is couplable into said gearbox via said second drive shaft;
- said output element being configured to dissipate torque from said gearbox;
- said first drive shaft and said second drive shaft run parallel to one another;
- one drive shaft of said first drive shaft and said second drive shaft being guided through an other one of said first drive shaft and said second drive shaft;
- said gearbox having a bevel gear stage coupled to said first drive shaft and to the output element;
- and,
- a bevel gear of said bevel gear stage being coupled to said output element for transmitting torque in at least one rotational direction without a change in rotational speed.
Dependencies are inferred from the claim text.