Damping module for two damping devices on two wheel carriers of an axle of a vehicle

Patent metadata

Field	Value
Publication number	US-11117435-B2
Application number	US-202016821025-A
Country	US
Kind code	B2
Filing date	Mar 17, 2020
Priority date	Mar 21, 2019
Publication date	Sep 14, 2021
Grant date	Sep 14, 2021

Abstract

A damping module for two damping devices on two wheel carriers of an axle of a vehicle, having a first damping circuit with a first upper damping connection to an upper damping chamber of a first damping device and a first lower damping connection to a lower damping chamber of the first damping device. A first pump device is arranged in a first pumping connection between the first upper damping connection and the first lower damping connection. Two valve combinations are oriented in opposite directions and include, in each case, a nonreturn valve (RV) and an adjustable throttle valve (DV) arranged in a first compensating connection. A second damping circuit with a second upper damping connection to an upper damping chamber of a second damping device and a second lower damping connection to a lower damping chamber of the second damping device are provided.

First claim

What is claimed:

1. A damping module ( 100 ) for two damping devices ( 20 , 30 ) on two wheel carriers of an axle of a vehicle, said damping module comprising:
a first damping circuit ( 200 ) comprising a first upper damping connection ( 202 ) to an upper damping chamber ( 22 ) of a first damping device, ( 20 ) a first lower damping connection ( 204 ) to a lower damping chamber ( 24 ) of the first damping device ( 20 ), a first pump device ( 212 ) arranged in a first pumping connection ( 210 ) between the first upper damping connection ( 202 ) and the first lower damping connection ( 204 ), and two valve combinations ( 222 , 224 ) which are oriented in opposite directions and each include a nonreturn valve (RV) and an adjustable throttle valve (DV) arranged in a first compensating connection ( 220 ),
a second damping circuit ( 300 ) comprising a second upper damping connection ( 302 ) to an upper damping chamber ( 32 ) of a second damping device ( 30 ), a second lower damping connection ( 304 ) to a lower damping chamber ( 34 ) of the second damping device ( 30 ), a second pump device ( 312 ) arranged in a second pumping connection ( 310 ) between the second upper damping connection ( 32 ) and the second lower damping connection ( 34 ), two compensating combinations ( 322 , 324 ) which are oriented in opposite directions and each includes a nonreturn valve (RV) and a variable throttle valve (DV) arranged in a second compensating connection ( 320 ), and
a connecting valve (VV) arranged between the first damping circuit ( 200 ) and the second damping circuit ( 300 ), the connecting valve (VV) configured to separate the two damping circuits ( 200 , 300 ) in a separating state (TZ) and connect the two damping circuits ( 200 , 300 ) in a connecting state (VZ).

2. The damping module as claimed in claim 1 , wherein the connecting valve (VV) in the connecting state (VZ) connects the two damping circuits ( 200 , 300 ) crosswise.

3. The damping module as claimed in claim 1 , wherein the first pump device ( 212 ) has a first drive ( 214 ) and the second pump device ( 312 ) has a second drive ( 314 ) which is separate from the first pump device ( 212 ).

4. The damping module as claimed in claim 1 , further comprising a first compensating tank ( 226 ) for damping fluid that is arranged in the first compensating connection ( 220 ), and a second compensating tank ( 326 ) for damping fluid is arranged in the second compensating connection ( 320 ).

5. The damping module as claimed in claim 1 , wherein the first pump device ( 212 ) and the second pump device ( 312 ) are either identical or at least one of the following features of the two pump devices ( 212 , 312 ) is identical: Pumping capacity, Response behavior; and Design.

6. The damping module as claimed in claim 1 , wherein the first pump device ( 212 ) and/or the second pump device ( 312 ) have/has a phase short circuit.

7. The damping module as claimed in claim 1 , wherein the two damping circuits ( 200 , 300 ) are arranged in a common damping unit ( 10 ).

8. In a damping module ( 100 ) for two damping devices ( 20 , 30 ) on two wheel carriers of an axle of a vehicle, said damping module including:
a first damping circuit ( 200 ) comprising a first upper damping connection ( 202 ) to an upper damping chamber ( 22 ) of a first damping device, ( 20 ) a first lower damping connection ( 204 ) to a lower damping chamber ( 24 ) of the first damping device ( 20 ), a first pump device ( 212 ) arranged in a first pumping connection ( 210 ) between the first upper damping connection ( 202 ) and the first lower damping connection ( 204 ), and two valve combinations ( 222 , 224 ) which are oriented in opposite directions and each include a nonreturn valve (RV) and an adjustable throttle valve (DV) arranged in a first compensating connection ( 220 ),
a second damping circuit ( 300 ) comprising a second upper damping connection ( 302 ) to an upper damping chamber ( 32 ) of a second damping device ( 30 ), a second lower damping connection ( 304 ) to a lower damping chamber ( 34 ) of the second damping device ( 30 ), a second pump device ( 312 ) arranged in a second pumping connection ( 310 ) between the second upper damping connection ( 32 ) and the second lower damping connection ( 34 ), two compensating combinations ( 322 , 324 ) which are oriented in opposite directions and each includes a nonreturn valve (RV) and a variable throttle valve (DV) arranged in a second compensating connection ( 320 ), and
a connecting valve (VV) arranged between the first damping circuit ( 200 ) and the second damping circuit ( 300 ), the connecting valve (VV) configured to separate the two damping circuits ( 200 , 300 ) in a separating state (TZ) and connect the two damping circuits ( 200 , 300 ) in a connecting state (VZ),
a method for operating the damping module ( 100 ) comprises at least temporarily operating the first pump device ( 212 ) and the second pump device ( 312 ) in the connecting state (VZ) of the connecting valve (VV) in order to maintain or build up the pressure in the two damping circuits ( 200 , 300 ).

9. The method as claimed in claim 8 , further comprising independently operating the first pump device ( 212 ) and the second pump device ( 312 ) in the separating state (TZ) of the connecting valve (VV) in order to change the pressure in the respective damping circuit ( 200 , 300 ).

Assignees

• Porsche Ag

Inventors

• Liebold Jochen
• Eisenbarth Markus
• Witte Thomas

Classifications

• B60G2500/30

  Height or ground clearance · CPC title

• B60G2500/02

  Supply or exhaust flow rates; Pump operation · CPC title

• B60G17/08 Primary

  Characteristics of fluid dampers (adjusting fluid dampers in general F16F9/44 - F16F9/53) · CPC title

• B60G13/08

  hydraulic · CPC title

• B60G2202/24

  Fluid damper · CPC title