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Method for regulating speed and/or following distance for automobiles

A technology for adjusting speed and distance, applied in the direction of speed/acceleration control, control/regulation system, vehicle accessories, etc., which can solve problems such as loss of driver comfort

Active Publication Date: 2012-07-04
BAYERISCHE MOTOREN WERKE AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This results in a considerable loss of comfort for the driver

Method used

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  • Method for regulating speed and/or following distance for automobiles
  • Method for regulating speed and/or following distance for automobiles
  • Method for regulating speed and/or following distance for automobiles

Examples

Experimental program
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Embodiment Construction

[0030] figure 1A diagram is shown in which the determined target object loss probability WK is plotted against time t. The object loss probability WK indicates how likely it is that there is no longer an object in front of the vehicle.

[0031] From time display t to time t1, the target object is detected by means of a suitable sensor, which is identified here with ZO+. During this time period, the target object loss probability WK is 0 because no target object loss is detected. As long as the target object is detected, the target object loss probability WK is not calculated.

[0032] The loss of the target object is then detected at time t1 , identified here by ZO-. Depending on the actual speed of the vehicle at the moment t1 when the target object is lost, a time interval from t1 to t2 is predetermined within which the target object loss probability WK is determined. Simultaneously with the initial detection of the loss of the target object ZO−, ie immediately after tim...

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PUM

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Abstract

The invention relates to a method for controlling speed and / or distance in motor vehicles having distance-related longitudinal control systems, wherein during clear driving, a clear drive accelerationThe invention relates to a method for controlling speed and / or distance in motor vehicles having distance-related longitudinal control systems, wherein during clear driving, a clear drive accelerationvalue is set to reach a preset speed, and while following a detected target object, a following acceleration value is set to maintain a preset distance from the target object, and wherein if the targ value is set to reach a preset speed, and while following a detected target object, a following acceleration value is set to maintain a preset distance from the target object, and wherein if the target object is lost during a following drive operation, a transition acceleration value is set. According to the invention, the transition acceleration value is set for the duration of a time interval,et object is lost during a following drive operation, a transition acceleration value is set. According to the invention, the transition acceleration value is set for the duration of a time interval,which is dependent on the speed at the time of the target object loss.which is dependent on the speed at the time of the target object loss.

Description

technical field [0001] The invention relates to a method for adjusting speed and / or distance in a motor vehicle with a distance-dependent longitudinal adjustment system. Background technique [0002] Motor vehicles with longitudinal adjustment systems have long been known. Most of the currently available longitudinal control systems adjust the speed of the vehicle to a predetermined desired or rated speed by means of a predetermined acceleration value. In addition to these longitudinal adjustment systems, longitudinal adjustment systems with added distance adjustment, so-called distance-dependent longitudinal adjustment systems, are already available from some manufacturers. Such a system, which is provided for example in the applicant's patent application under the name "Active Cruise Control", enables the vehicle to automatically drive at a desired or correspondingly lower speed while maintaining a desired distance from the vehicle in front. In principle, an additional d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W30/16B60K31/00
CPCB60W2520/10B60W2720/106B60W30/16
Inventor M-C·莱欧A·梅斯克F·兰格
Owner BAYERISCHE MOTOREN WERKE AG