US 8,396,642 B2 · Adaptive cruise control system

Abstract

An adaptive cruise control system for a motor vehicle includes a service brake comprising an electronic controller programmed/configured to detect driving data of the vehicle and distance data to a preceding vehicle, to calculate a movement prediction based on the driving and distance data, to influence the movement of the vehicle by influencing driving and braking, and to output a warning signal to the vehicle driver if the prediction indicates that, assuming a predetermined limiting braking retardation, a probability of an impact with another vehicle, with the adaptive cruise control system being activated, exceeds a predetermined impact probability threshold value without any intervention on the part of the driver. The controller is configured to detect braking parameters, based on which a maximum braking retardation that can be achieved with the service brakes can be calculated, and to reduce the limiting retardation, if the maximum retardation is below a predetermined value.

Claims12

Dependent claims

A headway regulated cruise control system for a motor vehicle having a braking system including a service brake, the system comprising an electronic controller is suitably programmed to

detect driving data of the motor vehicle and distance data with respect to a preceding vehicle,
calculate a motion prediction from the driving data and the distance data,
influence the state of motion of the motor vehicle by influencing one of driving and braking system devices,
output a warning signal to a driver of the motor vehicle when the motion prediction indicates that, with a predetermined limiting retardation, with the headway regulated cruise controller activated and without driver intervention, a probability of collision with the preceding vehicle that exceeds a predetermined collision probability threshold value,
detect braking parameters for calculating a maximum braking retardation that can be achieved with the service brakes, and
reduce the limiting retardation when the maximum braking retardation is below a predetermined retardation threshold value.

3 more elements

Dependencies are inferred from the claim text.

Adaptive cruise control system

Life of this patent

Adaptive cruise control system

Life of this patent

Abstract

Claims12