Method for controlling the directional stability of a vehicle, associated steering system and vehicle

A steering system and stability technology, applied in the field of vehicles, can solve the problems of responding to road conditions, asymmetrical steering experience, etc., and achieve the effect of increasing reaction time and preventing overcompensation

Active Publication Date: 2014-11-19
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0029] A disadvantage of the PDC implementation provided for the correction of traction effects and the compensation of drift has proven in practice to be the inability of said implementation to react within a short time to suddenly changing road conditions
It leads to an asymmetrical steering feel, especially in overtaking maneuvers on heavily banked roads

Method used

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  • Method for controlling the directional stability of a vehicle, associated steering system and vehicle
  • Method for controlling the directional stability of a vehicle, associated steering system and vehicle

Examples

Experimental program
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Effect test

Embodiment Construction

[0095] It can be clearly seen that the observation module 3 is still present, to which any value of the lateral acceleration a_1 of the vehicle is signaled via the accelerometer 4 . Depending on the lateral acceleration a_l, the torque value T_alt is provided by the observation module 3 .

[0096] The forces exerted on the steering wheel by the person 5 operating the vehicle, more precisely the male or female driver, are also recorded. The generated torque T_bar present in the steering system is measured and combined with the provided torque value T_alt. For this purpose, the torque value T_alt is subtracted from the torque T_bar, whereby a calculated torque component T_f is calculated. This torque component T_f is fed into the PDC system 1 .

[0097] From the torque component T_f and any further input signals or input data, an initial compensation torque T_pd is calculated by the PDC system 1 , however said initial compensation torque T_pd is not yet used to drive the power...

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PUM

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Abstract

A steering system to control a directional stability of a vehicle may include an active power steering assistance system, a sensor to detect vehicle dynamics data of the vehicle, a sensor to detect a torque of a steering system of the vehicle, and a controller. The controller may be configured to determine a torque value based on the vehicle dynamics data, calculate a torque component based on a difference between the torque value and the torque of the steering system, calculate a preliminary compensation torque on a basis of the torque component, calculate a final compensation torque by adding the preliminary compensation torque and the torque value, and actuate the active power steering assistance system based upon the final compensation torque. Systems and methods for controlling directional stability of a vehicle may compensate for short-term pull / drift and long-term pull / drift.

Description

technical field [0001] The invention relates to a method for increasing the directional stability of a vehicle. The invention also relates to a related vehicle steering system and a vehicle equipped with such a system. Background technique [0002] Assistance systems for steering devices of vehicles, especially motor vehicles, are well known. It extends from the virtually already fully established power steering system to a steering system operating independently, for example in a parked situation. In addition, such systems are also increasingly actively participating in the steering process during the journey in order to increase the driving comfort and safety of the vehicle occupants. [0003] Power steering systems differ in the form of their drive. Conventional hydraulically operated power steering systems (HPS="hydraulic power steering") are mainly used to provide purely power assisted steering. It has a hydraulic pump coupled to the vehicle engine in a torque trans...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D6/00B62D101/00B62D113/00B62D137/00
CPCB62D6/04
Inventor 索斯藤·威廉·海丝特迈尔鲁道夫·奎斯塞吉奥·特林博利
Owner FORD GLOBAL TECH LLC
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