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Subramanian, Vijayasarathy
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Self-Expressive & Self-Healing Closures Hardwares for Autonomous & Shared Mobility

General Motors Technical Center India-Vijayasarathy Subramanian, Biju Kumar, Masani Sivakrishna, Anandakumar Marappan
  • Technical Paper
  • 2019-28-2525
Published 2019-11-21 by SAE International in United States
Shared Mobility is changing mobility trends of Automotive Industry and its one of the Disruptions. The current vehicle customer usage and life of components are designed majorly for personal vehicle and with factors that comprehend usage of shared vehicles. The usage pattern for customer differ between personal vehicle, shared vehicle & Taxi. In the era of Autonomous and Shared mobility systems, the customer usage and expectation of vehicle condition on each & every ride of vehicle will be a vehicle in good condition on each ride. The vehicle needs systems that will guide or fix the issues on its own, to improve customer satisfaction. We also need a transformation in customer behavior pattern to use shared mobility vehicle as their personal vehicle to improve the life of vehicle hardwares & reduce warranty cost. We will be focusing on Vehicle Closure hardware & mechanisms as that will be the first and major interaction point for customers in vehicle. This gives us an opportunity to improve product life and customer experience in ride share and shared mobility…
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Need for Personalization and Opportunities in Autonomous & Shared Mobility

General Motors Tech Center India-Suresh Dayakar, Vijayasarathy Subramanian, Keshava Reddy, Vijaykumar Shiramgond
  • Technical Paper
  • 2019-28-2520
Published 2019-11-21 by SAE International in United States
In the current scenario, vehicles are majorly owned by individuals where they have their own personal settings or accessories as per their individual preferences. In Shared mobility all features/controls are not personalized to everyone who shares the vehicle, which hinders the usage of shared vehicle. For shared mobility/Autonomous vehicle to be successful, it must play a significant role in customer engagement. To enhance the customer engagement, we need to satisfy individual customer by customizing the vehicle for their needs. This will give a cognitive feel of personal vehicle in a shared environment. We need technologies and design in improving vehicle interior and exterior systems to address personalization. We will involve Design Thinking approach by customer interactions in each zone of vehicle both interior and exterior to identify personalization needs. The zones of study include Frunk & Trunk compartment zone, Interaction zones, interior & exterior zone. We will rank the interaction based on its usage in vehicle and customer satisfaction factors such as privacy, comfort, usage, entertainment, hygiene & ergonomics. The summary will have design concept…
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Exhaust Volume Flow based Time Alignment in NOx Measurements in NOx Reduction Systems

Navistar Inc.-Vijayasarathy Subramanian, Navtej Singh, Adam Lack
Published 2012-09-24 by SAE International in United States
With the emission norms becoming more and more stringent along with the focus on reducing ownership and operating costs, the need to optimize the aftertreatment system becomes much more evident. Thus, the well monitored, optimized usage of urea or ammonia (NH₃) for the NOx reduction in an SCR system is critical to reduce the operating cost of the vehicles and to comply with emission regulations. In Ammonia Storage and Delivery System (ASDS), pure gaseous NH₃ from the NH₃ cartridges is being used for the reduction of the engine-out NOx in the exhaust stream over the NPF (NOx Particulate Filter). In almost all NOx reduction systems, NOx sensors play an important role in determining the amount of urea or NH₃ to be dosed for efficient NOx reduction with minimal NH₃ consumption and slippage for best possible fluid economy. In the NH₃ dosing strategy the NOx conversion efficiency plays a vital role as a feedback variable for calculating NH₃ dosing quantity and is based on the upstream and downstream NOx sensor measurements. Since the NOx sensors are…
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