Vehicle operable by motor and by muscular energy

Patent metadata

Field	Value
Publication number	US-9555854-B2
Application number	US-201414784540-A
Country	US
Kind code	B2
Filing date	Mar 3, 2014
Priority date	Apr 15, 2013
Publication date	Jan 31, 2017
Grant date	Jan 31, 2017

Abstract

A vehicle is provided which is operable to motor power and/or pedal power, in particular an electric bicycle, which includes a crankshaft drive having a bottom bracket spindle, a chain ring, which outputs a drive torque for the vehicle to a chain, an electric drive, and a cone ring transmission for the continuous variation of a gear step ratio, the cone ring transmission and the electric drive being situated at the crankshaft drive, and the cone ring transmission being connected to the crankshaft drive and set up in such a way that a torque generated by the rider is transmitted to the chain ring.

First claim

What is claimed is:

1. A vehicle which is operable using at least one of motor power and pedaling power, comprising:
a crankshaft drive having a bottom bracket spindle;
a chain ring that outputs a drive torque for the vehicle to a chain;
an electric drive; and
a cone ring transmission for a continuous variation of a translation ratio, wherein:
the cone ring transmission and the electric drive are situated on the crankshaft drive, and
the cone ring transmission is connected to the crankshaft drive and set up in such a way that a torque generated by a rider is transmitted to the chain ring.

2. The vehicle as recited in claim 1 , wherein the vehicle is an electric bicycle.

3. The vehicle as recited in claim 1 , wherein the cone ring transmission is situated within a housing of the crankshaft drive.

4. The vehicle as recited in claim 1 , wherein the electric drive drives the chain ring via a gear step.

5. The vehicle as recited in claim 1 , further comprising a planetary gearing situated between a driven shaft of the cone ring transmission and the chain ring.

6. The vehicle as recited in claim 1 , wherein a gear ratio of the cone ring transmission is variable.

7. The vehicle as recited in claim 1 , wherein the bottom bracket spindle runs through one of a plurality of cones of the cone ring transmission.

8. The vehicle as recited in claim 1 , wherein the bottom bracket spindle runs through an output cone of the cone ring transmission.

9. The vehicle as recited in claim 1 , further comprising:
a control unit; and
a sensor for recording a force that is applied by a rider, wherein the control unit controls the electric drive based on a force value recorded by the sensor.

10. The vehicle as recited in claim 9 , further comprising:
a cone pretensioning mechanism that pretensions one of a plurality of cones of the cone ring transmission in an axial direction of the cone; and
a pressure mechanism situated on the cone pretensioning mechanism, wherein the sensor is situated on the pressure mechanism.

11. The vehicle as recited in claim 10 , wherein the pressure mechanism includes one of:
a sloped plane having a ball,
a cone system having a positive cone and a negative cone, and
a system of two disks having pockets, in which balls are situated.

12. The vehicle as recited in claim 1 , wherein at least one of:
the cone ring transmission is situated above the bottom bracket spindle, and
the electric drive is situated underneath the bottom bracket spindle.

Assignees

• Bosch Gmbh Robert

Inventors

• Bendel Karl
• Dommsch Hans-Peter
• Martini Katrin
• Dornhoefer Gerd

Classifications

• F16H15/42

  in which two members co-operate by means of rings or by means of parts of endless flexible members pressed between the first mentioned members · CPC title

• B62M9/06

  using a single chain, belt, or the like · CPC title

• B62K2204/00

  Adaptations for driving cycles by electric motor · CPC title

• B62M11/12

  with frictionally-engaging wheels (B62M11/14 takes precedence) · CPC title

• B62M6/50

  characterised by detectors or sensors, or arrangement thereof · CPC title