Implementation and validation of a three degrees of freedom steering-system model in a full vehicle model

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Abstract

This paper describes the coupling between a three degrees of freedom steering-system model and a multi-body truck model. The steering-system model includes the king-pin geometry to provide the correct feedback torque from the road to the steering-system. The steering-system model is combined with a validated tractor semi-trailer model. An instrumented tractor semi-trailer has been tested on a proving ground and the steering-wheel torque, pitman-arm angle, king-pin angles and drag-link force have been measured during steady-state cornering, a step steer input and a sinusoidal steering input. It is shown that the steering-system model is able to accurately predict the steering-wheel torque for all tests and the vehicle model is accurate for vehicle motions up to a frequency where the lateral acceleration gain is minimum. Even though the vehicle response is not accurate above this frequency, the steering-wheel torque is still represented accurately.

LanguageEnglish
Pages86-107
Number of pages22
JournalVehicle System Dynamics : International Journal of Vehicle Mechanics and Mobility
Volume57
Issue number1
DOIs
StatePublished - 1 Jan 2019

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Torque
Tractors (truck)
Truck trailers
Wheels
Trucks
Drag
Feedback
Geometry

Keywords

  • Commercial vehicle
  • hydraulic power-steering
  • parametrisation
  • steering-system
  • steering-wheel torque prediction
  • wheatstone bridge

Cite this

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title = "Implementation and validation of a three degrees of freedom steering-system model in a full vehicle model",
abstract = "This paper describes the coupling between a three degrees of freedom steering-system model and a multi-body truck model. The steering-system model includes the king-pin geometry to provide the correct feedback torque from the road to the steering-system. The steering-system model is combined with a validated tractor semi-trailer model. An instrumented tractor semi-trailer has been tested on a proving ground and the steering-wheel torque, pitman-arm angle, king-pin angles and drag-link force have been measured during steady-state cornering, a step steer input and a sinusoidal steering input. It is shown that the steering-system model is able to accurately predict the steering-wheel torque for all tests and the vehicle model is accurate for vehicle motions up to a frequency where the lateral acceleration gain is minimum. Even though the vehicle response is not accurate above this frequency, the steering-wheel torque is still represented accurately.",
keywords = "Commercial vehicle, hydraulic power-steering, parametrisation, steering-system, steering-wheel torque prediction, wheatstone bridge",
author = "J. Loof and I.J.M. Besselink and H. Nijmeijer",
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