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Methods to detect lateral control oscillations in vehicle behavior

A vehicle control system and vehicle technology, which is applied in the field of vehicles, can solve problems such as the reduction of vehicle lateral control, and achieve the effect of improving vehicle lateral control

Active Publication Date: 2020-06-05
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During operation in an autonomous or semi-autonomous mode, these oscillations can result in a reduction in the lateral control of the vehicle

Method used

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  • Methods to detect lateral control oscillations in vehicle behavior
  • Methods to detect lateral control oscillations in vehicle behavior
  • Methods to detect lateral control oscillations in vehicle behavior

Examples

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Embodiment Construction

[0031]Embodiments of the disclosure are described herein. It is to be understood, however, that the disclosed embodiments are examples only and that other embodiments may take various and alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention. As will be understood by those of ordinary skill in the art, various features shown and described with reference to any one of the figures may be combined with features shown in one or more other figures to produce implementation plan. Combinations of features shown provide representative embodiments for typical applications. However, various combinations and modifications of the features consistent with the teachings of ...

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Abstract

The invention relates to methods to detect lateral control oscillations in vehicle behavior. An exemplary method for detecting a lateral oscillation of a vehicle includes monitoring yaw rate data andlateral acceleration data of the vehicle, analyzing the yaw rate and lateral acceleration data to generate a yaw rate signal energy distribution and a lateral acceleration signal energy distribution,determining whether a series of conditions are satisfied; and if the conditions are satisfied, automatically controlling the actuator to reduce the lateral oscillation of the vehicle. In some examples, the series of conditions includes the detection of spikes in the yaw rate and lateral acceleration data at approximately the same frequency, a magnitude of the spikes exceeding a first threshold, and a phase shift between the yaw rate and lateral acceleration data exceeding a second threshold.

Description

Background technique [0001] The present invention relates generally to the field of vehicles and, more particularly, to a vehicle steering system and method for detecting lateral control oscillation of a vehicle. [0002] The operation of modern vehicles is becoming more automated, ie able to provide driving control with less and less driver intervention. Vehicle automation has been classified into a numerical level from zero (corresponding to no automation with full human control) to five (corresponding to full automation with no human control). Various automated driver assistance systems such as cruise control, adaptive cruise control, and parking assist systems correspond to lower levels of automation, while true "driverless" vehicles correspond to higher levels of automation. [0003] Autonomous and semi-autonomous vehicles may include a steer-by-wire system for enabling an operator to steer or steer the vehicle. A steer-by-wire system establishes steering control throug...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/20B60W10/10B60W10/06B60W10/184B60W40/109B60W40/112B60W60/00
CPCB60W10/20B60W10/10B60W10/06B60W10/184B60W40/109B60W40/112B60W2520/125B60W2710/06B60W2710/10B60W2710/18B60W2710/20B60W30/02B60W2520/14B60W2050/0057B60W10/18B60W10/04G05D1/0088B60W2720/106B60W2900/00
Inventor D·G·沃克尔于博周珩
Owner GM GLOBAL TECH OPERATIONS LLC
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