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Limiting a target value for a control variable of a driver assistance system

A technology of driver assistance and control volume, applied in the field of driver assistance systems, which can solve problems affecting the actual behavior of the vehicle, disturbing effects, etc.

Active Publication Date: 2021-02-19
宝马汽车股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Known methods for presetting target values ​​for control variables of driver assistance systems are susceptible to disturbing influences from inside the vehicle and / or outside the vehicle.
These disturbing effects may make it difficult to influence the actual behavior of the vehicle through the preset control volume target value

Method used

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  • Limiting a target value for a control variable of a driver assistance system
  • Limiting a target value for a control variable of a driver assistance system
  • Limiting a target value for a control variable of a driver assistance system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] figure 1 shows the control variable target value v of the motor vehicle KFZ determined or received by the driver assistance system FAS soll time curve.

[0035] In this case, the control variable represents, for example, the speed of the motor vehicle KFZ (eg the speed of the motor vehicle KFZ itself), and the correction variable represents the acceleration of the motor vehicle KFZ (eg the acceleration of the motor vehicle KFZ itself).

[0036] also, figure 1 Also shown is the actual value v of the control variable of the motor vehicle KFZ ist , which is likewise determined or received by the driver assistance system FAS.

[0037] Here, the driver assistance system FAS is set according to the control variable target value v soll and the actual value of the control quantity v ist The deviation between determines the correction amount a, which is used to reduce the target value v in the control amount soll and the actual value of the control quantity v ist deviatio...

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PUM

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Abstract

One aspect of the invention relates to a driver assistance system for controlling a motor vehicle, the driver assistance system being configured to determine or receive a target value for a control variable of the motor vehicle, to determine or receive an actual value for the control variable of the motor vehicle, to determine a correction value for reducing a deviation between the target value for the control variable and the actual value for the control variable depending on the deviation between the target value for the control variable and the actual value for the control variable, to compare the correction value with a first threshold value, and at least to limit a future change in the target value for the control variable increasing the deviation between the target value for the control variable and the actual value for the control variable depending on the comparison of the correction value with the first threshold value.

Description

technical field [0001] The invention relates to a driver assistance system and a method for limiting a control variable target value of the driver assistance system. Background technique [0002] Within the scope of this document, the term "autonomous driving" is to be understood as driving with automatic longitudinal or lateral guidance, or autonomous driving with automatic longitudinal and lateral guidance. The term "autonomous driving" includes automated driving with any degree of automation. Exemplary degrees of automation are assisted driving, partially autonomous driving, highly automated driving, or fully autonomous driving. These degrees of automation are defined by the Federal Highway Research Institute (BASt) (see BASt publication "Research Report", edition 11 / 2012). In assisted driving, the driver continues to perform longitudinal or lateral guidance, while the system takes over the corresponding other functions within certain limits. In partially automated dri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W50/00B60W30/14
CPCB60W2720/10B60W2720/106B60W50/0097B60W2050/0008B60W50/0098B60W30/143B60W60/001B60W2540/18B60Y2300/143B60W50/0205B60W50/0225B60W2050/0083B60W2050/0215
Inventor T·韦尔滕R·诺恩T·芬德勒
Owner 宝马汽车股份有限公司