Innovation in Operations and Services 1 Hardware-in-the-loop Test - - PowerPoint PPT Presentation

Innovation in Operations and Services 1

Innovation in Operations and Services

Hardware-in-the-loop Test Setup for Tuning Semi-Active Hydraulic Suspension Systems

Elisa Alboni, Ville Björklund, Matti Lin, Heikki Lu 01.04.2020

Innovation in Operations and Services

Suspension System Testing

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Cost-efficiency Real-life testing Software only simulation

• Real-life testing
• Software only simulation
• Hardware-in-the-loop (HIL)

simulation

HIL simulation

Innovation in Operations and Services

Challenges

Hardware-in-the-loop suspension systems simulations require:

c

Equipment Investment Experience

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Innovation in Operations and Services

Solution

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• Accessible documentation
• Significantly cheaper than existing solutions
• Enables IoT compatibility
• Universal software

Single board computer controlled hydraulic test bench Simulations based on Matlab and Simulink

Innovation in Operations and Services

Details of Our Solution

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Innovation in Operations and Services

The Hydraulic Test Bench

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Innovation in Operations and Services

The Hydraulic Test Bench

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Mass Position sensor Load cells Check valve Actuator Damper Manual flow control valve Electro-proportional valve Servo solenoid directional control valve

Innovation in Operations and Services

The Control System Hardware

• Voltages needed for the control system: -10...+10 V and 24 V
• RPi voltage range 0...3.3 V

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Innovation in Operations and Services

The Simulation

• Road profile generation
• Collection of sensor data

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• Skyhook control strategy
• Tuning damping coefficient

Innovation in Operations and Services

Results

• Framework for an HIL simulation setup to test suspension systems
• Hardware
• Signal processing circuits
• Simulink model

Needs further research:

• Building the presented framework to validate the real time

capabilities (step time)

• Use of industrial RPis in creating HIL simulating systems

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