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Journal Article

Characterization of Automotive Seat NVH Performance

2022-10-05
2022-28-0106
Global automotive market is noticing an increase in competition from every corner of automobile world since decades and automotive OEMs are on the front line with this competition. Thus, the need of time for OEMs is to develop and maintain the brand image within the market until the launch of new models. Disparate factors within a car distinctly interlinks the customer perception towards a brand image. However, NVH as a factor equally affects the customer decision while choosing a particular brand as it is easily perceivable by any layman customer. NVH fraternity focuses on vibration induced within tactile locations, (i.e. seat, steering wheel, gear knob and floor) in a car. Among all these, Steering wheel and Seat plays a prominent role as it interdigitate directly towards customer comfort. In this detailed study we have focused on Seat as aggregate providing comfort to customer.
Technical Paper

Optimizing an Automotive HVAC System for Enhancement of Acoustic Comfort

2021-09-15
2021-28-0147
The Indian automotive industry is going through a rapid transformation phase. Regulatory emission norms such as, migration from BSIV to BSVI engine, increased adoption of μ-hybrid, full electric and autonomous cars are examples of such rapid transformation. The upgradation of internal combustion engines for compliance with new regulatory norms (e.g., from BSIV to BSVI) has caused a significant change in the automotive acoustic performance. As the powertrain system are being upgraded and getting quieter, the on-board Heating, Ventilation and Air-Conditioning system (HVAC) system emerges as one of the prominent noise sources which strongly influences overall refinement levels inside the cabin. This in turns is affecting overall feeling of passenger’s comfort. The HVAC system of an automobile is a compact and yet a complex system designed to provide thermal comfort inside the car cabin.
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