Torque roll axis mounting system for serial range extenders without a through-drive

Patent metadata

Field	Value
Publication number	US-9914347-B2
Application number	US-201615147996-A
Country	US
Kind code	B2
Filing date	May 6, 2016
Priority date	Nov 8, 2013
Publication date	Mar 13, 2018
Grant date	Mar 13, 2018

Abstract

A mounting device is provided for oscillatingly mounting a range extender, which consists of an internal combustion engine and a generator, on a body and/or a chassis of a motor vehicle by way of vibration-damping elements. At least two of the vibration-damping elements are integrated in load-carrying bearings and one additional one is integrated in a supporting bearing for supporting moments. The mounting device is characterized in that the vibration-damping elements of the mounting device at least for the load-carrying bearings are secured to the range extender, i.e. a first vibration-damping element is secured to the internal combustion engine and a second vibration-damping element is secured to the generator.

First claim

What is claimed is:

1. A mounting device arrangement for oscillatingly mounting a range extender on a vehicle body and/or a chassis, the mounting device arrangement comprising:
an internal combustion engine and a generator of the range extender;
only two load-carrying bearings in each of which a respective vibration-damping element is integrated;
only one supporting bearing located away from an axis extending between the two load-carrying bearings, the supporting bearing being arranged to resist moments generated by the range extender around the axis between the two load-carrying bearings and having a supporting bearing vibration-damping element integrated in the supporting bearing,
wherein
the vibration-damping elements of the two load-carrying bearings of the mounting device are secured to the range extender, in that
a first vibration-damping element of the respective vibration-damping elements of the two load-carrying bearings is secured to the internal combustion engine to resist rotation about the axis between the two load-carrying bearings, and
a second vibration-damping element of the respective vibration-damping elements of the two load-carrying bearings is secured to the generator to resist rotation about the axis between the two load-carrying bearings.

2. The mounting device arrangement according to claim 1 , wherein the supporting bearing vibration-damping element integrated in the supporting bearing is secured to the range extender.

3. The mounting device arrangement according to claim 2 , wherein the axis extending between the two load-carrying bearings of the range extender is a torque roll axis of the range extender.

4. The mounting device arrangement according to claim 1 , wherein the axis extending between the two load-carrying bearings of the range extender is a torque roll axis of the range extender.

5. The mounting device arrangement according to claim 4 , wherein
the two load-carrying bearings and the supporting bearing have a rigidity which increases with increasing displacement from respective unloaded positions in a range of displacement corresponding to a lateral displacement of the supporting bearing from 0 to 3 mm during damping of torsional vibrations of the range extender about the torque roll axis.

6. The mounting device arrangement according to claim 5 , wherein when the two load-carrying bearings are displaced about the torque roll axis in response to the torsional vibrations of the range extender, the two load-carrying bearings exert a same restoring moment counter to the torsional vibrations on the range extender.

7. The mounting device arrangement according to claim 1 , wherein the supporting bearing is configured to be connected with the vehicle body via a pivot.

8. The mounting device arrangement according to claim 7 , further comprising:
a frame configured to connect the one of the two load-carrying bearings having the first vibration-damping element to the vehicle body.

9. The mounting device arrangement according to claim 1 , further comprising:
a frame configured to connect the one of the two load-carrying bearings having the first vibration-damping element to the vehicle body.

Assignees

• Bayerische Motoren Werke Ag

Inventors

• Otte Alexander-Wilhelm
• Pflaum Sebastian
• Raith Andreas
• Huelsmann Arthur
• Jedraszek Tomasz
• Muschler Thomas
• Hoess Bernhard
• Eiletz Richard
• Ochner Udo
• Schmidt Christian

Classifications

• B60Y2200/92

  Hybrid vehicles · CPC title

• B60Y2200/90

  Vehicles comprising electric prime movers · CPC title

• B60K5/1216

  characterised by the location of the supports relative to the motor or to each other (B60K5/1225 takes precedence) · CPC title

• B60L50/10

  using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines · CPC title

• B60Y2400/204

  Generator sets, engine and generator as one unit · CPC title