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Method for controlling wheel steering angle of at least one vehicle wheel of vehicle

A steering angle, steering-by-wire technology, applied to vehicle components, steering mechanisms, steering rods, etc., can solve problems such as increased power demand, high component load, etc., to improve steering behavior, reduce power demand and/or component load, Avoid the effects of wheel steering angle changes

Active Publication Date: 2020-11-03
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This leads, on the one hand, to a significantly increased power requirement and, on the other hand, to a high component load, which places heavy loads on the mechanics of the front axle (e.g. wheel steering angle adjusters and / or steering gears) as well as the wheels and causes them to wear out. faster

Method used

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  • Method for controlling wheel steering angle of at least one vehicle wheel of vehicle
  • Method for controlling wheel steering angle of at least one vehicle wheel of vehicle
  • Method for controlling wheel steering angle of at least one vehicle wheel of vehicle

Examples

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Embodiment Construction

[0023] Figure 1a and 1b A vehicle 12 , which is configured as an example as a motor vehicle, is shown schematically with a plurality of wheels 10 and a steer-by-wire system 14 . The steer-by-wire steering system 14 is actively connected to the wheels 10 and is configured to influence the direction of travel of the vehicle 12 , wherein steering regulations 18 , 19 are only electrically forwarded to the wheels 10 in at least one operating state.

[0024] The steer-by-wire steering system 14 includes at least one wheel steering angle adjuster 16 , which in the present case is also referred to as a “steering rack actuator”. The wheel steering angle adjuster 16 is, for example, designed as a central adjuster and is actively connected to at least two wheels 10 , in particular the two front wheels. Steering angle adjuster 16 is at least designed to vary the steering angle of wheels 10 in accordance with steering specifications 18 , 19 . In the present case, the steering angle adju...

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Abstract

The invention relates to a method for controlling a wheel steering angle of at least one vehicle wheel (10) of a vehicle (12), in particular of a motor vehicle, wherein the vehicle (12) has a steer-by-wire steering system (14) comprising at least one wheel steering angle control element (16), which is provided at least for modifying the wheel steering angle of the vehicle wheel (10) according to asteering demand (18, 19). According to the invention, in at least one operating mode, in which the vehicle (12) is at a standstill and a steering demand (18, 19) is received, the wheel steering angleof the vehicle wheel (10) is at least substantially maintained at a constant value and a desired wheel steering angle (20) for the vehicle wheel (10) is determined in accordance with the steering demand (18, 19), and wherein, in at least one subsequent, additional operating mode, in which the vehicle (12) is moving, the wheel steering angle is adjusted to the desired wheel steering angle (20) bymeans of the wheel steering angle control element (16).

Description

technical field [0001] The invention relates to a method for controlling the wheel steering angle of at least one wheel of a vehicle according to the preamble of claim 1 . [0002] The invention also relates to a vehicle according to claim 10 and a control device according to claim 11 . Background technique [0003] Vehicles are known from the prior art with steer-by-wire-steering systems that work without a direct mechanical connection between a steering input element, such as a steering wheel, and the steered wheels, and wherein The steering input on the element is relayed only electrically. In order to vary the steering angle of the wheels, the steer-by-wire system includes at least one steering angle adjuster which is electrically connected to the steering input element. [0004] It is also known that during steering the highest steering torque usually occurs at a standstill, since in this case the mechanics of the front axle have to act on the stationary wheels. This...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/00B62D6/00B62D6/02B62D15/02
CPCB62D5/001B62D6/002B62D6/02B62D15/0285B62D5/006B62D6/008B62D15/021
Inventor C·里斯J·赞克M·埃尔曼
Owner ROBERT BOSCH GMBH
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