Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Electric Servo Steering System

A steering system and electric servo technology, applied in the direction of electric steering mechanism, steering mechanism, power steering mechanism, etc., can solve the problems of reducing the moving force of the power steering system and increasing the motion noise of the power steering system, so as to eliminate the running noise Effect

Inactive Publication Date: 2016-04-06
ROBERT BOSCH AUTOMOTIVE STEERING
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the pretension of the toothed belt also increases the friction of the existing bearing points, thereby reducing the displacement forces of the power steering system as a whole
Another disadvantage of such power steering systems according to the prior art is that the movement noise of such power steering systems can also be increased due to tooth meshing and due to vibrations of the parts of the toothed belt that are not engaged with the chainring

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electric Servo Steering System
  • Electric Servo Steering System

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] figure 1 A servo steering system 1 for a passenger car in the form of an electric rack power steering system is shown in a longitudinal section. The axially displaceable component 5 in the form of a toothed rack 16 is supported in a support 3 in the form of a cylindrical steering gear housing 15 . Parallel to the toothed rack 16 , a servomotor 8 is attached to a radial flange 17 of the steering gear housing 15 . The toothed rack 16 meshes on a meshing section with a pinion not shown on the steering shaft and has an external thread 6 on a main shaft section 20 which is in contact with the ball recirculation thread or internal thread of a nut 4 The threads 7 are engaged. The nut 4 and the spindle section 20 form a spindle 2 . The nut 4 is non-rotatably connected to a disk 10 and is supported via a radial bearing 21 on a carrier part designed as a housing cover 22 .

[0020] Attached to a shaft 9 of the servomotor 8 is a further disk 10 ′, which has a smaller diameter ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to an electric power steering system (1) for a vehicle, in particular an auxiliary power steering system for a motor vehicle, with a leading screw (2) from a nut (4), which is mounted in an axially nondisplaceable manner in a frame (3), and with an axially shiftable component (5), the external thread (6) of which is in engagement with a thread (7) of the nut (4), and with a servomotor (8), between the shaft (9) thereof and the nut (4) or a washer (10), which is connected to the nut (4) for conjoint rotation, there is a traction mechanism (11) for transmitting a rotational movement of the shaft (9) of the servomotor (8) to the nut (4). In order to provide an electric power steering system, the operating noises of which are minimized in a simple manner and which has a low power loss, provision is made for the traction mechanism (11) to be formed from at least one cable- or strand-like first cord (12) and a second cord (13), and for the cords (12, 13) to be arranged at least indirectly on the shaft (9) of the servomotor (8) in such a manner that, upon rotation of the shaft (9) of the servomotor (8), a cord (12, 13) is wound on the shaft (9) and a cord (12, 13) is unwound therefrom without slip between the shaft (9) and the cord (12, 13).

Description

technical field [0001] The invention relates to an electric servo steering system for a motor vehicle, in particular a power steering system for a motor vehicle, comprising a lead screw comprising a nut axially immovably supported in a bracket and an axially movable components. Background technique [0002] DE10304189A1 describes an electric servo steering system for motor vehicles comprising a lead screw comprising a nut axially immovably supported in a bracket and an axially movable member whose outer The threads engage the internal threads of the nut. A servo motor is equipped with a toothed pulley on its shaft, and the nut has a disc formed as a toothed pulley connected non-rotatably to it, and a toothed belt is provided as a traction mechanism, whereby the rotation of the shaft of the servo motor The movement is transferred to the nut. [0003] With such a traction drive, radial forces on the motor bearings of the servomotor and on the lead screw nut, which is usuall...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B62D5/04F16H19/00
CPCB62D5/0424F16H7/04
Inventor P·盖格尔R·温特E·多姆汉A·瓦宁
Owner ROBERT BOSCH AUTOMOTIVE STEERING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com