On emulating engine and vehicle transient loads for transmission-in-the-loop experiments

Ahlawat, Rahul; Jiang, Shugang; Medonza, Dharshan; Smith, Michael H.

doi:10.1016/j.mechatronics.2012.07.001

Cited by 4 publications

(6 citation statements)

References 28 publications

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“…TIL can be useful in aiding fast and early testing of the transmission at relatively low risk. In Ahlawat et al, 77,78 the component of interest was a four-wheel drive automatic transmission, mechanically linked to three high bandwidth, low inertia, PMSM dynamometers. 77,78 The first dynamometer imitates the torque input of the engine to the transmission, while the other two mimic the vehicle and road loads at the interface.…”

Section: Applicationsmentioning

confidence: 99%

“…In Ahlawat et al, 77,78 the component of interest was a four-wheel drive automatic transmission, mechanically linked to three high bandwidth, low inertia, PMSM dynamometers. 77,78 The first dynamometer imitates the torque input of the engine to the transmission, while the other two mimic the vehicle and road loads at the interface. The vehicle model has two separate wheel models, one for the left and one for the right wheels, to allow split-µ testing.…”

Section: Applicationsmentioning

confidence: 99%

“…For example, in a TIL arrangement where transmission behaviour is the focus, the engine may be reduced to a mean-torque-based lumped-parameter model as demonstrated by Ahlawat et al 78 Greater detail could then be exerted in modelling and control of the input dynamometer, mimicking important behaviours such as engine torque pulsation and control mode changes. For HEV-emulating testbeds, the literature describes the use of the ‘dynamic average modelling’ method 67,68 for simulating fast-switching power devices such as motors and converters.…”

Section: Common Challenges In Cilmentioning

confidence: 99%

“…Thus, testbeds requiring dynamometers as load actuators usually opt for ones with very low- or low-inertia due to their responsiveness. In TIL from Ahlawat et al, 78 the use of a fast-switching input motor was important to successfully emulate engine torque pulse. On the other hand, quasi-steady state, thermally interfaced systems may suffice with a near-RT response.…”

Section: Common Challenges In Cilmentioning

confidence: 99%

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A review of component-in-the-loop: Cyber-physical experiments for rapid system development and integration

Fagcang

Stobart

Steffen

2022

Advances in Mechanical Engineering

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To meet rising demands in performance and emissions compliance, companies are driven to develop systems of ever-increasing complexity. In-the-loop methods use a hybrid approach combining a physical subsystem with a virtual subsystem in real-time that can make product development processes faster and cheaper, enabling physical subsystems to be tested in real-world conditions while they are immersed in virtual environment simulation. These techniques evolved from being used solely in controller development with only the embedded controller placed as hardware-in-the-loop (HIL), to being a more holistic technique for system synthesis, capable of both component- and system-level studies. This paper delves into the development of the latter form, henceforth referred to as ‘component-in-the-loop’ or CIL. It provides a literature review of the growing uses of the technique in automotive development, giving a general implementation guidance in system architecture, methodology and control system structure. Furthermore, it suggests the need to clarify terminologies related to in-the-loop methods for a more efficient taxonomy. Definitions are proposed where deemed appropriate. In the age of search engines, this should facilitate knowledge transfer within and across disciplines. Finally, it highlights the key challenges in constructing such systems while discussing attempted solutions. CIL has reached a state of maturity where it is ready for wider adoption and continued technological progress will only push its potential further.

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Section: Applicationsmentioning

confidence: 99%

Section: Applicationsmentioning

confidence: 99%

Section: Common Challenges In Cilmentioning

confidence: 99%

Section: Common Challenges In Cilmentioning

confidence: 99%

See 2 more Smart Citations

A review of component-in-the-loop: Cyber-physical experiments for rapid system development and integration

Fagcang

Stobart

Steffen

2022

Advances in Mechanical Engineering

View full text Add to dashboard Cite

show abstract

“…Further advantages of HIL method include the possibility to observe and study system behavior in case of system faults, mechanical parts degradation in time, effects of temperature or peculiar working environment, as well as sensor sensitivity errors. HIL methodology is very widespread for automotive and aerospace applications [6][7][8][9]. For what concerns the renewable energy field, such technique is increasingly employed in the development process [10][11][12] …”

Section: Introductionmentioning

confidence: 99%