Friction modelling and simulation at system level: a practical view for the designer

Maré, Jean-Charles

doi:10.1177/0959651812441749

Cited by 17 publications

(13 citation statements)

References 24 publications

(33 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Namely, the type of EHB actuator is expected to display “load-dependent” friction, as explained in Mare. 26…”

Section: Friction Characterizationmentioning

confidence: 99%

“…Namely, the type of EHB actuator is expected to display ''load-dependent'' friction, as explained in Mare. 26 3. The friction force in the reducing pressure situation exhibits much lower friction level than that in the rising pressure situation, being particularly intense for the large position operation point, which puts in evidence the large friction asymmetries in the EHB actuator, as explained in de Castro et al 13 According to the aforementioned results and analysis, the nonlinearities of friction make it difficult to establish a precise friction model.…”

Section: Friction Force Increases With the Increasing Pistonmentioning

confidence: 99%

See 1 more Smart Citation

A novel pressure control strategy of an electro-hydraulic brake system via fusion of control signals

Han

Liu

2019

Proceedings of the Institution of Mechanical Engineers, Part D:

View full text Add to dashboard Cite

With the development of electro-hydraulic brake system in the automotive application, pressure control is at the top of a brake system engineer’s agenda. This work focuses on the development of a pressure-loop controller for a motor-type electro-hydraulic brake system, which is composed of an electro-mechanical actuator and a hydraulic link. The pressure control issue of motor-type electro-hydraulic brake system is influenced intensely by the nonlinearities (i.e. friction) and uncertainties (e.g. temperature variation, brake pad wear, and so on) of the system and by the very demanding performance specifications (i.e. supporting cooperative work with hydraulic control unit of anti-lock brake system). The pressure control of motor-type electro-hydraulic brake system is investigated, and a novel pressure–based control strategy via fusion of control signals is proposed to improve the pressure tracking performance. The control strategy comprises online model–based friction compensation, online dither–based friction compensation, and feedback control. Four original contributions make this work distinctive from the existing relevant literature. Selecting the Coulomb+viscous friction model can maximize to reduce difficulty of parameter identification and Stribeck effects detection based on maintaining the pressure tracking accuracy. Thanks to the model-based friction compensation torque, the signal magnitude of dither-based friction compensation torque can be decreased so that the vehicle comfort can be improved. The compensation parameters of both the model-based and dither-based friction compensation can be online modified according to the operating point of system. The robustness of the fusion controller is enhanced by employing the sliding mode control algorithm with conditional integrator. The performance of the proposed control strategy is evaluated by hardware-in-the-loop-simulation and vehicle experiment in typical braking situations. The experimental results with fusion control show improved pressure tracking performance in comparison with that without fusion control.

show abstract

“…Namely, the type of EHB actuator is expected to display “load-dependent” friction, as explained in Mare. 26…”

Section: Friction Characterizationmentioning

confidence: 99%

Section: Friction Force Increases With the Increasing Pistonmentioning

confidence: 99%

A novel pressure control strategy of an electro-hydraulic brake system via fusion of control signals

Han

Liu

2019

Proceedings of the Institution of Mechanical Engineers, Part D:

View full text Add to dashboard Cite

show abstract

“…• Mechanical losses and friction which increase force/torque especially at low speed [39] Rod end Thermal stress:…”

Section: Mechanical Componentsmentioning

confidence: 99%

Optimal preliminary design of electromechanical actuators

Budinger

Reysset

Halabi

et al. 2013

Proceedings of the Institution of Mechanical Engineers, Part G:

View full text Add to dashboard Cite

This paper presents a methodology for the optimal preliminary design of electro-mechanical actuators. The main design drivers, design parameters and degrees of freedom that can be used for preliminary design and optimization of EMA are described. The different types of models used for model based design (estimation, simulation, evaluation and meta-model), and their associations are presented. The process preferred for its effectiveness in terms of flexibility and computational time is then described and illustrated with the example of a spoiler electromechanical actuator. The proposed approach, based on meta-models obtained using the surfaces response methods and scaling laws models, is used to explore the influence of anchorage points and transmission ratio on the different design constraints and the overall mass of the actuator.

show abstract

“…There exist numerous friction models to determine the force transmitted when v rel = 0. Mare gives a review of different friction models and categorizes them into three types depending on their ability to model contact dynamics (small tangential deformations in the contacting surfaces without sliding) and depending on whether the system dynamics properties are parameters of the friction model (Mare, 2012). The three types are:…”

Section: Modeling Of Multi Disk Clutch Frictionmentioning

confidence: 99%

Modeling of an Automatic Transmission for the Evaluation of Test Procedures in a Virtual End-of-Line Test Bench

Röper

Göres

Gühmann

2015

Linköping Electronic Conference Proceedings

View full text Add to dashboard Cite

End-of-line tests for automatic transmissions are mandatory to ensure quality and safety. The interaction of unit under test, test bench and test automation leads to a high complexity in the development of test automation and test procedures. Validation of test automation and test procedures requires access to the test bench and the unit under test, both of which are only available close to startup of production. Therefore, virtualization of test bench and unit under test can be used to ease the bottleneck.Virtualization is a common tool in the development of electronic control units for automotive applications using SIL and HIL technologies. The properties of simulation models for a virtual end-of-line test bench differ from those for classical SIL and HIL environments. In this paper, an automatic transmission model suitable for a virtual end-of-line test bench is presented. The required characteristics of the multiple-disk clutch friction model are discussed in detail. Hydraulics are modeled using a Moore machine to enable simulation of the pressure build-up characteristics during shift operation. With the resulting model, the influence of the key parameter of a test procedure actuating an overlapping gearshift is investigated in a virtual test system.

show abstract

Friction modelling and simulation at system level: a practical view for the designer

Cited by 17 publications

References 24 publications

A novel pressure control strategy of an electro-hydraulic brake system via fusion of control signals

A novel pressure control strategy of an electro-hydraulic brake system via fusion of control signals

Optimal preliminary design of electromechanical actuators

Modeling of an Automatic Transmission for the Evaluation of Test Procedures in a Virtual End-of-Line Test Bench

Contact Info

Product

Resources

About