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Adaptive cruise control system

A speed control and adjustment technology, applied in the direction of control devices, external condition input parameters, vehicle components, etc., can solve problems such as missing

Active Publication Date: 2011-01-12
ZF CV SYST EURO BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] A disadvantage of the known pitch-regulated speed control system is that it can lead the driver to believe that he is safe due to missing warning messages, despite the urgent need for driver intervention

Method used

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Embodiment Construction

[0025] figure 1 A motor vehicle 10 is shown which has a front side 12 and which travels in a direction of travel F on a schematically drawn street. A preceding vehicle 16 driving in front of the motor vehicle 10 can be detected by means of the preceding vehicle detection device. The vehicle ahead detection device is arranged to detect the vehicle 16 ahead from its side, thus providing information on whether there is indeed a vehicle ahead, and on the other hand to determine the front side 12 of the car 10 and the rear side of the vehicle 16 ahead. The distance between A.

[0026] Automobile 10 comprises the detection device 18 that is used for wheel and / or automobile speed, and this detection device is the driving data detection equipment, and driving data is with the driving speed V of automobile 10 Fform is detected. Motor vehicle 10 also includes a deviation sensor 20 and an optional deceleration sensor 22 , which can be part of an airbag system, for example. The yaw se...

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Abstract

The invention relates to an adaptive cruise control system for a motor vehicle, having a service brake comprising an electric controller (24), which is equipped to detect the driving data of the motor vehicle and distance data to a preceding vehicle, to compile a movement prediction based on the driving data and the distance data, to influence the state of movement of the motor vehicle by influencing the driving and braking means, and to output a warning signal to a drive of the motor vehicle (10), if the movement prediction indicates that, assuming a predetermined threshold delay (agrenz), an impact probability of an impact with another motor vehicle, with the adaptive cruise control system being activated, exceeds a predetermined impact probability threshold value without any intervention on the part of the drive of the motor vehicle. The invention provides that the electric controller (24) is equipped to detect braking parameters, based on which a maximum brake delay (amax) that can be achieved with the service brakes can be calculated, and to reduce the threshold delay (agrenz), if the maximum brake delay (amax) is below a predetermined delay threshold value.

Description

technical field [0001] The invention relates to a distance-regulated speed control system (Abstandsregeltempomat) for a motor vehicle with an operating brake, which comprises an electrical control unit which is designed to detect operating data of the motor vehicle ; make motion predictions from operating data; influence the motion state of the vehicle based on the motion predictions; and, when the motion predictions indicate that a collision with another vehicle is likely If the resistance exceeds a predetermined threshold, a warning signal is sent to the driver of the car. Background technique [0002] Such pitch-adjustable speed control systems are also known as ACC (adaptive cruise control, adaptive speed regulator). The distance-regulated speed control system influences the behavior of the vehicle taking into account the distance to the vehicle in front. From a large number of sensor data, such as the own speed and the relative speed to the vehicle in front, the engin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/08B60W30/16B60W50/08B60T7/22B60W50/00B60W10/04B60W10/18
CPCB60T7/22B60W50/14B60W2050/0083B60W2550/148B60W2510/184Y02T10/84B60W10/18B60W2720/106B60W30/095B60W30/16B60W10/04B60W2552/40
Inventor 卡斯藤·布罗伊尔
Owner ZF CV SYST EURO BV