Chassis Dynamometer as a Development Platform for Vehicle Hardware In-the-Loop “VHiL”

Mayyas, Abdelraouf; Prucka, Robert; Pisu, Pierluigi; Haque, Imtiaz

doi:10.4271/2013-01-9018

Cited by 9 publications

(5 citation statements)

References 24 publications

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“…The results show significant differences between street measurements and driving cycle measurements, especially for internal combustion engine vehicles. As a final point, it must be indicated that chassis dynamometers are continuously moving away from being employed as certification tools, development platforms for calibration, or system optimization and validation tasks [1,2,39].…”

Section: Nedc and Wltp2 Driving Cycles Results From The Dynamometer T...mentioning

confidence: 99%

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Thorough Analysis of the Reliability of Measurements on Chassis Roller Dynamometer and Accurate Energy Consumption Estimation for Electric Vehicles

Alhanouti,

Gauterin

2023

Energies

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The energy consumption of the electric test vehicle on the roller dynamometer test bench is thoroughly investigated in this work. Initially, we extensively examined the relevant testing approaches on chassis dynamometer test benches. Then, we presented the main issues and limitations of this type of testing facility. After that, an experimental analysis was performed by recording the NEDC and the WLTP-class 2 standard driving cycle test data. It was found that the power consumption associated with specific test maneuvers could be accurately simulated via the roller dynamometer system. However, the experimental test results showed some disparities compared to the expected results from the simulation models. These findings supported identifying the dynamic behavior resulting from the tire and roller contact. The LuGre friction model provided the solution, incorporating friction-related physical models such as stick-slip and the Stribeck effect. In addition, adjustments were made to the LuGre model to consider the dynamic influences of the roller on the tire. Finally, we created a systematic estimation model for energy consumption by integrating the boundary conditions of the test bench, a generic model for energy estimation of electric vehicles, and the proposed tire–roller contact model. The overall model requires only the measured traction speed of the test vehicle and the auxiliary energy losses as physical inputs. The results proved that the proposed model enabled the estimation of the total power consumption with high accuracy.

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Section: Nedc and Wltp2 Driving Cycles Results From The Dynamometer T...mentioning

confidence: 99%

“…Chassis dynamometers are widely used in test environments in vehicle development due to their relatively simple configurations and versatility [1,2]. Their scope involves vehicles, from motorcycles to heavy industrial machinery.…”

Section: Introductionmentioning

confidence: 99%

Thorough Analysis of the Reliability of Measurements on Chassis Roller Dynamometer and Accurate Energy Consumption Estimation for Electric Vehicles

Alhanouti,

Gauterin

2023

Energies

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“…Another vast advantage is the parallel design and validation of vehicle components, decreasing development time [6]- [8]. E.g., a gearbox can be tested without the necessity of a combustion engine or the rest of the drive train.…”

Section: Introductionmentioning

confidence: 99%

Experimental Validation of Innovative Control Concepts for Powertrain Test Beds in Power Hardware-in-the-Loop Configuration

Erdogan,

Du,

Jakubek

et al. 2024

IEEE Open J. Ind. Applicat.

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Power hardware-in-the-loop (PHIL) testing has become indispensable for the rapid, modular, and cost-saving development of automotive components. This paper focuses on PHIL tests composed of entire powertrains that exchange speed and torque signals with vehicle simulations. Previous studies pointed out the importance of promptly following the references from the virtual simulation environment to replicate realistic driving conditions and introduced control strategies to cope with the challenges associated with this setup. However, a comprehensive comparison of the different control strategies has not yet been carried out. To fill this gap, the concepts are first investigated in-depth in simulations and are then rigorously validated on a state-of-the-art powertrain test bed under highly dynamic driving scenarios, including full-braking. Furthermore, an improvement of existing shaft torque control approaches, which are mainly based on feedforward control, is proposed to better compete with the other methods. The proposed extension shows higher resilience to low accuracy of torque actuators, while the other concepts exhibit greater robustness against time delays. The results from the direct comparisons are summarized and allow the appropriate selection of control strategies for specific use cases.

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“…Amongst the different types of dynamometers used, this research focuses on those where the entire vehicle powertrain (often with chassis and cabin) is placed on rollers to simulate driving conditions. Mayyas et al published a review of these types of dynamometers classifying them according to the adhesion/mounting of the vehicle to the dynamometer [38]; this type of dynamometer has been widely used for decades [39][40][41][42][43] being subject to changes and improvements, largely, in how vehicle inertia is represented. Traditionally, this was performed by means of discrete disks used as a flywheel to store the kinetic energy; however, many modern dynamometers use an auxiliary motor to emulate inertia or downwards slopes [44,45]; these assemblies are generally used after the initial stages of the design process, where it is desired to accurately evaluate a wide variety of component combinations quickly [46,47].…”

Section: Introductionmentioning

confidence: 99%

Integration of a Chassis Servo-Dynamometer and Simulation to Increase Energy Consumption Accuracy in Vehicles Emulating Road Routes

Arango

Escobar

2022

WEVJ

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Electric vehicles, particularly those in mass transit systems, make use of accurate power estimations for different routes to calculate powertrain and battery requirements and plan the location and times of charging stations. Hence, chassis dynamometers are a common tool for vehicle designers as they allow for the emulation of vehicle performance and energy consumption by simulating realistic road conditions. In this paper, a method is presented where inertia events and negative slopes can be represented in the dynamometer through a single motor; allowing researchers to perform fast and cheap tests, while also considering the effect of these variables. A dynamic simulation is used to distribute the energy used in three ways: first, accelerating the vehicle by overcoming the forces opposing motion; second, emulating the kinetic energy delivered by the vehicle mass when decelerating; and third, emulating the energy delivered to the vehicle by negative slopes. Tests were carried out on a dynamometer validating the method through an example route, estimating energy consumption and regeneration; this method reduces the error in energy consumption by inertial effects and negative slopes, otherwise not considered in one motor dynamometers, showing a 9.11% difference between total test energy and real bus energy for this route.

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Chassis Dynamometer as a Development Platform for Vehicle Hardware In-the-Loop “VHiL”

Cited by 9 publications

References 24 publications

Thorough Analysis of the Reliability of Measurements on Chassis Roller Dynamometer and Accurate Energy Consumption Estimation for Electric Vehicles

Thorough Analysis of the Reliability of Measurements on Chassis Roller Dynamometer and Accurate Energy Consumption Estimation for Electric Vehicles

Experimental Validation of Innovative Control Concepts for Powertrain Test Beds in Power Hardware-in-the-Loop Configuration

Integration of a Chassis Servo-Dynamometer and Simulation to Increase Energy Consumption Accuracy in Vehicles Emulating Road Routes

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