Method and device for stabilizing a vehicle combination

a cartrailer and combination technology, applied in the direction of braking systems, cargo supporting/securing components, railway components, etc., can solve the problems of causing sinusoidal variations of lateral quantities and sprung-mass vibrations, and achieve the effect of reliable detection of unstable driving performan

Inactive Publication Date: 2006-09-14
CONTINENTAL TEVES AG & CO OHG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0014] An object of the invention is to provide a method and a de...

Problems solved by technology

These unstable conditions involve the rolling motions known with car-trailer combinations and the anti-phase build-up process between the towing vehicle and the trailer as well as imminent roll-over conditions at too high lateral accelerations caused by obstacle avoidance maneuvers, lane changes, side wind, road irregularities and...

Method used

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  • Method and device for stabilizing a vehicle combination
  • Method and device for stabilizing a vehicle combination
  • Method and device for stabilizing a vehicle combination

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Embodiment Construction

[0043] Before the actual method is referred to, FIG. 3 shall be used to schematically explain the signal variation of the oscillation of the yaw rate (dash-dot), of the steering angle (dash-dash), and the differential value of measured yaw rate and model or reference yaw rate in dependence on a slalom maneuver or the slalom-like avoidance of obstacles, respectively. The signal variation a) shows a sinusoidal variation of the yaw rate {dot over (ψ)} and the differential value Δ{dot over (ψ)} of model yaw rate and measured yaw rate without the driver steering. Without a corresponding steering angle variation, the variation of the yaw rate and the differential value of measured yaw rate and model-based yaw rate are almost equal.

[0044]FIG. 3b) shows the signal variation that is e.g. produced in a slalom maneuver when the oscillation is generated by the steering angle variation alone, where the vehicle can follow the driving performance of the driver illustrated in the vehicle model. In...

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Abstract

Method and Device for Stabilizing a Car-Trailer Combination A method and device for stabilizing a car-trailer combination, including a towing vehicle and a trailer moved by the towing vehicle, is disclosed. The rolling motions of the towing vehicle are monitored and measures that stabilize driving are preformed upon detection of an actual or expected unstable driving condition of the towing vehicle or the car-trailer combination. In order to insure a proper intervention, the yaw velocity of the towing vehicle or the car-trailer combination is detected and the measures that stabilize driving conditions are controlled dependent upon the detected yaw velocity.

Description

TECHNICAL FIELD [0001] The present invention relates to a method and a device for stabilizing a car-trailer combination, including a towing vehicle and a trailer moved by the towing vehicle, wherein the towing vehicle is monitored in terms of rolling motions and measures that stabilize driving are taken upon the detection of an actual or expected unstable driving performance of the towing vehicle or the car-trailer combination. BACKGROUND OF THE INVENTION [0002] The present method aims at detecting and controlling the instabilities of car-trailer combinations (motor vehicle with trailer), especially of combinations consisting of a passenger car, pickup truck or sport-utility vehicle and any trailers desired, in particular caravans, before driving conditions are encountered during which the driver can no longer maintain control of the vehicle. These unstable conditions involve the rolling motions known with car-trailer combinations and the anti-phase build-up process between the towi...

Claims

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Application Information

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IPC IPC(8): B61D45/00B60T7/20B60T8/17B60T8/1755B60T8/24
CPCB60T7/20B60T8/1708B60T8/1755B60T8/248B60T2230/06
Inventor WALDBAUER, DIRKKROBER, JURGEN
Owner CONTINENTAL TEVES AG & CO OHG
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