Control design of an electro-pneumatic gearbox actuator

Szabo, Adam; Bécsi, Tamás; Gáspár, Péter; Aradi, Szilárd

doi:10.1109/mesa.2018.8449145

Cited by 5 publications

(3 citation statements)

References 18 publications

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“…With the given assumptions and simplifications, the state-space representation describing the actuator's behavior can be written in a single form as (30)- (32), but the values of these matrices depend on the actual states indirectly through (19), (20), (21) and (33), which results in two versions of A and four versions of B matrices; therefore, it has eight hybrid states, where the actual state is determined by the mass flow rates and the Main piston position.…”

Section: Lqr Methodsmentioning

confidence: 99%

“…The main aspects taken into account were the computing cost, generated code length, and compatibility of the methods with the qualitative requirements; therefore, a PID and an LQR controller are proposed for such an application. According to the principles of model-based development, first, these methods were designed and tested in a MIL environment, presented in detail in [32]. Afterward, they were implemented on the real plant.…”

Section: Model-based Controller Developmentmentioning

confidence: 99%

“…The paper summarizes the results of previous work regarding the modeling and model-based LTI control of the actuator, then complements it with testing on the real system. Following the Model-Based Development (MBD) process, in [30], a nonlinear model is developed, which is validated against laboratory measurement in [31], then the model-based controllers have been designed in [32]. Based on the tests on the real system, it becomes clear that to use the developed controllers on the actual system successfully, they must be substantially modified.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Control Design and Validation for Floating Piston Electro-Pneumatic Gearbox Actuator

Szabo¹,

Bécsi

Gáspár

2020

Applied Sciences

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The paper presents the modeling and control design of a floating piston electro-pneumatic gearbox actuator and, moreover, the industrial validation of the controller system. As part of a heavy-duty vehicle, it needs to meet strict and contradictory requirements and units applying the system with different supply pressures in order to operate under various environmental conditions. Because of the high control frequency domain of the real system, post-modern control methods with high computational demands could not be used as they do not meet real-time requirements on automotive level. During the modeling phase, the essential simplifications are shown with the awareness of the trade-off between calculation speed and numerical accuracy to generate a multi-state piecewise-linear system. Two LTI control methods are introduced, i.e., a PD and an Linear-Quadratic Regulators (LQR) solution, in which the continuous control signals are transformed into discrete voltage solenoid commands for the valves. The validation of both the model and the control system are performed on a real physical implementation. The results show that both modeling and control design are suitable for the control tasks using floating piston cylinders and, moreover, these methods can be extended to electro-pneumatic cylinders with different layouts.

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