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Power-assisted steering system of an automobile

A steering system and power steering technology, which is applied in power steering mechanism, steering mechanism, control system, etc., can solve the problems of insufficient speed, reliability and stability of the electric motor driving power device to intervene in steering.

Inactive Publication Date: 2003-05-21
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the electric motor can only accelerate slowly and the intervening steering action of the driving dynamics is not fast enough and reliable enough to stabilize the car or improve the comfort of the car

Method used

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  • Power-assisted steering system of an automobile
  • Power-assisted steering system of an automobile
  • Power-assisted steering system of an automobile

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Embodiment Construction

[0019] exist figure 1 Among them, the reference numeral 1 represents the automobile servo power steering system of the present invention. The steering system 1 has a steering wheel 2 for which the desired steering angle of the steering wheels of the motor vehicle is predetermined. Behind the steered wheels 2 , the steering system 1 has a drive dynamics system 4 which superimposes a correction angle on the steering angle. The construction and operating principle of the traction drive 4 are described in detail in DE 40 31 316 A1, to which reference is made here. The correction angle is determined from the viewpoint of improving the driving stability and / or driving comfort of the vehicle. The drive train 4 has a motor 5 for generating the correction angle, in particular an electric motor.

[0020] Behind traction dynamic system 4 , steering system 1 has a booster 6 in the form of a variable hydraulic booster. Of course, the booster mechanism 6 can also be in the form of an el...

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PUM

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Abstract

The present invention relates to a power-assisted automobile steering system (1). Said steering system (1) has a steering wheel (2) for providing the desired steering angle of the automobile wheels (3), driving dynamics elements (4) for superimposing a correction angle onto the steering angle, said correction angle being determined with a view to increasing the driving stability and / or driving comfort of the automobile, and a power assist drive device (6). The power assist drive device (6) is configured as a variable torque booster in order to keep the performance of the driving dynamics elements (4) approximately constant throughout the speed range of the vehicle, the degree of torque boost (M) depending on the automobile speed (V) and at least one value of the driving dynamics elements (4) that characterises the correction angle.

Description

technical field [0001] The invention relates to a servo power steering system of a motor vehicle, wherein the steering system has a steering wheel for predetermining the required steering angle of the wheels, a driving dynamic device for superimposing the steering angle with a correction angle, a power assist mechanism, wherein the driving stability is improved according to This correction angle is obtained from the viewpoint of driving comfort and / or driving comfort. The invention also relates to a power booster for a servo power steering system of a motor vehicle, which is in the form of a variable power booster and has a torque converter as a wheel steering angle adjustment device capable of receiving torque converter current and a A device for obtaining the torque converter current based on at least the vehicle speed. Finally, the invention also relates to a method for ascertaining the torque converter current of a power booster in the form of a variable power booster of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/00B62D5/04B62D5/06B62D6/00B62D101/00B62D113/00B62D137/00H02P29/00
CPCB62D6/008B62D5/008B62D6/003
Inventor K·韦伯R·明茨
Owner ROBERT BOSCH GMBH
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