Objective Evaluation of Ride Quality of Road Vehicles

Kumar, K. Senthil; Pal, S.; Sethi, Reena

doi:10.4271/990055

Cited by 9 publications

(2 citation statements)

References 3 publications

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“…Therefore, according to the ISO 2631 standard, 15 one can use the Root Mean Square (RMS) acceleration method, which calculates the average acceleration over a certain period of time. 60 The comfort reference values are shown in Table 7.…”

Section: Resultsmentioning

confidence: 99%

A new approach to controlling an active suspension system based on reinforcement learning

Dridi

Hamza

Yahia

2023

Advances in Mechanical Engineering

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Active suspension provides better vehicle control and safety on the road with optimal driving comfort compared to passive suspension. Achieving this requires a good control system that can adapt to any environment. This article uses a deep reinforcement learning method to develop an optimal neural network that meets the comfort requirements according to ISO 2631-5 standards. The algorithm trains the agent without any prior knowledge of the environment. Various simulations were performed, and the results were validated with the literature and the standard until the appropriate reward function was found. Simple and consistent road profiles were used while maintaining constant system parameters during training. The results show that suspension based on deep reinforcement learning reduces vehicle body acceleration and improves ride comfort without sacrificing suspension deflection and dynamic tire loading. The controller expects the RMS value of the acceleration to be 0.228 with a minimum overrun of the suspended mass.

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Section: Resultsmentioning

confidence: 99%

A new approach to controlling an active suspension system based on reinforcement learning

Dridi

Hamza

Yahia

2023

Advances in Mechanical Engineering

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“…Engine induced excitations vary from 20 to 200 Hz (low idle to rated speed) while road induces up to 40 Hz (Senthil Kumar et al, 1999;Jazar, 2008). The engine excites the chassis through engine mounts and transmits it to the rider through body contact, i.e., seat, hand, feet and eye.…”

Section: Evaluation and Assessment Motor Vehicle Vibrationsmentioning

confidence: 99%

Vibrational discomfort and motorcycle health assessment under engine excitation

Dalawai

Vyas

2015

IJVNV

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This paper evaluates the passenger discomfort and motorcycle health by assessing relevant ISO standards and referred literature. The human vibration standards evaluate general severity with frequency weightings while comfort contours from the referred literature evaluate subjective perceived sensitivity with frequency, amplitude, location, direction and driving posture conditions. Machinery standards and referred literature evaluate the grades, permissible vibrations and fault symptoms. Experiments are conducted on four leading brands of different category motorcycles. The engine is swept from low idle to rated speed and vibration signals at different locations on the engine and chassis are recorded. Ride comfort levels and health conditions of motorcycles are quantified and analysed. Experimental observations and gaps in the ISO and referred literature are discussed. The results indicated that an unweighted rating still holds good for these experiments at a selected speed in comparison to rating by ISO weightings and sensation magnitudes. of vibrations, rotor and vehicle dynamics, condition monitoring, instrumentation and signal processing. He has around 100 research papers, guided 11 PhDs and edited conferences.

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