Vehicle with electric auxiliary drive and continuously variable planetary gear unit

Patent metadata

Field	Value
Publication number	US-9908588-B2
Application number	US-201414913762-A
Country	US
Kind code	B2
Filing date	Jul 8, 2014
Priority date	Aug 23, 2013
Publication date	Mar 6, 2018
Grant date	Mar 6, 2018

Abstract

A vehicle drivable by motor power and/or pedal power, in particular to an electric bicycle, including: a crank mechanism having a crank spindle; an output drive element that delivers a drive torque for the vehicle, in particular to a chain or the like; an electric drive system having a reduction linkage; and a steplessly adjustable planetary linkage, an output element of the steplessly adjustable planetary linkage transferring the drive torque to the output drive element.

First claim

What is claimed is:

1. A vehicle drivable by motor power and/or pedal power, comprising:
a crank mechanism having a crank spindle;
an output drive element disposed on the crank mechanism that delivers a drive torque for the vehicle;
an electric drive system disposed on the crank mechanism, having a reduction linkage; and
a steplessly adjustable planetary linkage disposed on the crank mechanism;
wherein an output element of the steplessly adjustable planetary linkage is operable to transfer the drive torque to the output drive element, and
wherein an input element of the steplessly adjustable planetary linkage is connected to the crank mechanism and to the electric drive system.

2. The vehicle of claim 1 , wherein a linkage is upstream from the steplessly adjustable planetary linkage.

3. The vehicle of claim 1 , wherein the electric drive system is located on the crank spindle opposite the steplessly adjustable planetary linkage at any angle.

4. The vehicle of claim 1 , wherein the electric drive system and the steplessly adjustable planetary linkage are disposed on one common side of the crank spindle.

5. The vehicle of claim 1 , wherein the electric drive system is disposed radially inside or radially outside the steplessly adjustable planetary linkage.

6. The vehicle of claim 1 , wherein the crank spindle and a center axis of the output drive element are not coincident.

7. The vehicle of claim 1 , wherein the electric drive system is connected to a conventional planetary gearbox, an output drive of the conventional planetary gearbox being connected to the steplessly adjustable planetary linkage.

8. The vehicle of claim 1 , wherein the output drive element is disposed in freely rotatably mounted fashion on a hollow shaft surrounding the crank spindle.

9. The vehicle of claim 1 , wherein the output drive element is disposed on the input element side of the steplessly adjustable planetary linkage.

10. The vehicle of claim 1 , wherein the vehicle includes an electric bicycle.

11. The vehicle of claim 1 , wherein the crank mechanism includes a chainring.

12. The vehicle of claim 1 , wherein a linkage, in particular a spur-gear linkage or a planetary linkage or a worm-gear linkage, is upstream from the steplessly adjustable planetary linkage.

13. The vehicle of claim 1 , wherein the electric drive system is located on the crank spindle opposite the steplessly adjustable planetary linkage at an angle of 180°.

14. The vehicle of claim 1 , wherein the crank spindle and a center axis of the output drive element are not coincident and in particular are parallel to one another.

15. The vehicle of claim 1 , wherein the electric drive system is connected to a conventional planetary gearbox, an output drive of the conventional planetary gearbox being connected to the steplessly adjustable planetary linkage, in particular to the central positioning member or sun gear.

16. The vehicle of claim 1 , wherein the steplessly adjustable planetary linkage is a steplessly adjustable positioning device having a plurality of rotating and tiltable balls and a central positioning member.

17. The vehicle of claim 1 , wherein the steplessly adjustable planetary linkage is a steplessly adjustable positioning device having an input element, an output element, a plurality of rotating and tiltable balls, and a central positioning member which serves as a rolling surface for the balls.

Assignees

• Bosch Gmbh Robert

Inventors

• Kuehlcke Torsten
• Hilzinger Juergen
• Kimmich Peter
• Hintekausen Markus
• Meyer Andre

Classifications

• B62M6/55 Primary

  power-driven at crank shafts parts · CPC title

• B62M11/18

  with a plurality of planetary gear units · CPC title

• B62M11/145

  built in, or adjacent to, the bottom bracket · CPC title

• B62M11/14

  with planetary gears · CPC title