STEERING SYSTEM HAVING NOISE-REDUCING COMPONENTS MADE OF COMPOSITE MATERIAL

• US 20110247891A1
• Filed: 11/05/2009
• Published: 10/13/2011
• Est. Priority Date: 12/19/2008
• Status: Abandoned Application

• Current Assignee: ThyssenKrupp Presta AG (Thyssenkrupp AG)
• Original Assignee: ThyssenKrupp Presta AG (Thyssenkrupp AG)
• Inventors: Meyer, Martin, Klukowski, Christoph
• Application Number:
  US13/140,533
• Publication Number:
  US 20110247891A1
• Time in Patent Office: Days
• US Class Current: 180/443
• CPC Class Codes: B60R 13/08 Insulating elements, e.g. for sound insulation sound insulating linings for trains B61D17/185; drivers' cabs for load-carrying vehicles insulated against vibrations or noise B62D33/0604; thermal or acoustic insulation of engines F02B77/11; damping of sounds using compensation by electro-acoustic methods G10K11/178
• CPC Class Codes: B62D 1/16 Steering columns
• CPC Class Codes: B62D 1/181 with power actuated adjustment, e.g. with position memory
• CPC Class Codes: B62D 5/0403 characterised by constructional features, e.g. common housing for motor and gear box
• CPC Class Codes: B62D 5/0448 Ball nuts
• CPC Class Codes: F16H 57/028 characterised by means for reducing vibration or noise
• CPC Class Codes: H02K 5/24 specially adapted for suppression or reduction of noise or vibrations
• CPC Class Codes: H02K 7/116 with gears
• CPC Class Codes: H02K 7/1166 comprising worm and worm-wheel structural association with bearings specially adapted for worm gear drives H02K7/081

Abstract

The invention relates to a steering system with a steering wheel, an upper steering shaft, a lower steering shaft and a steering gear, having a servo drive or superposition drive, and wherein at least one housing part is manufactured from sheet metal implemented as a composite material, wherein the composite material has a first metal layer and a second metal layer, between which an insulating layer is arranged made of a viscoelastic material or an elastomer.

Claims

1. A steering system for a motor vehicle comprising a steering wheel, an upper steering shaft, a lower steering shaft and an electric drive, wherein the upper steering shaft is held pivot-mounted in a jacket unit and the electric drive can be directly or indirectly connected to a vehicle body, wherein at least one housing part and/or one holding part is/are manufactured from sheet metal implemented as a composite material, wherein the composite material has a first metal layer and a second metal layer, between which a layer is arranged made of a viscoelastic material or an elastomer.

2. The steering system according to claim 1, wherein the steering column has a console which is manufactured from the composite material.

3. The steering system according to claim 1, wherein the motor housing is manufactured from the composite material.

4. The steering system according to claim 1, wherein a stator assembly is attached in the motor housing by means of tolerance rings manufactured from composite material.

5. The steering system according to claim 1, wherein the steering column is attached to the console via brackets manufactured from composite material.

6. The steering system according to claim 1, wherein the upper steering shaft is arranged in a jacket tube manufactured from composite material.

7. The steering system according to claim 1, wherein the electric drive is a drive for an axially and/or vertically adjustable steering column.

8. The steering system according to claim 1, wherein the electric drive is a drive for a power steering system.

9. The steering system according to claim 1, wherein the electric drive is a drive for a superposition steering system.

10. The steering system according to claim 1, wherein the servo motor or the superposition drive is arranged on holders which are manufactured from composite material.