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Closed-loop control for trailer sway mitigation

A technology of trailers and controllers, applied in the directions of trailers, control devices, brakes, etc., can solve problems such as strong vibration of trailers

Inactive Publication Date: 2009-08-19
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When these control methods and systems apply symmetrical torque at inappropriate times, the trailer may vibrate more strongly

Method used

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  • Closed-loop control for trailer sway mitigation
  • Closed-loop control for trailer sway mitigation
  • Closed-loop control for trailer sway mitigation

Examples

Experimental program
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Embodiment Construction

[0019] Before describing any embodiments of the invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and arrangement of components set forth in the following detailed description or shown in the following drawings. The invention can be implemented as other embodiments or of being practiced or carried out in various ways.

[0020] It should also be apparent to those of ordinary skill in the art that the system shown in the figures is a model of what an actual system might look like. Many of the modules and logic structures described can be implemented in software executed by a microprocessor or similar device, or in hardware using various components including, for example, application specific integrated circuits ("ASICs"). Terms such as "processor" may include or refer to hardware and / or software. Additionally, capitalized terms may be used throughout the specification. These terms are used for conven...

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PUM

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Abstract

A method, and a system using the method, of controlling a towing vehicle (100) that is connected to a vehicle trailer (102). The method includes sensing a set of vehicle targets and a set of vehicle conditions in response to the set of vehicle targets. The method also includes determining a plurality of differences between the set of vehicle targets and the set of vehicle conditions, determining a trend of the plurality of differences, generating at least one of a symmetric signal and an asymmetric signal based on the trend, and actuating a vehicle system with the at least one of a symmetric signal and an asymmetric signal.

Description

Background technique [0001] Embodiments of the invention relate to a method and apparatus for controlling a motor vehicle that tows a trailer. [0002] Stability is a concern for vehicles towing a trailer, especially when the towing vehicle is traveling at high speeds or cornering. Since a trailer can significantly affect the dynamics of the towing vehicle, many control systems use various techniques to improve the stability of the towing vehicle. For example, systems such as anti-lock braking systems (“ABS”), traction control systems (“TCS”), and vehicle dynamics control (“VDC”) systems can be configured to perform different functions for the vehicle to improve stability sex. [0003] Existing methods and systems for suppressing trailer vibration or improving stability generally require that when trailer vibration is above a threshold, by applying symmetrical braking or torque to the towing vehicle, followed (again by applying to the towing vehicle) non- Symmetrical brakin...

Claims

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Application Information

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IPC IPC(8): B60W30/18B60W40/10B60W50/06B60T8/1755
CPCB60W2520/28B60W2300/14B60W40/114B60W40/11B60T2230/06B60T8/1708B60T8/1755B60W40/112B60W2720/14B60W2520/125B60W2520/22B60W2520/14B60W50/06B60W2050/0009B60W2050/001B60W2050/0011B60W2540/18B60W50/0097B60W2050/0031B60W2050/0052B60T8/17B60W30/18B60W40/10B60W50/16
Inventor H-C·吴F·纳尔迪J-J·陈E·哈特曼
Owner ROBERT BOSCH GMBH