Technical Paper
Stop-Start Technology Integration: Challenges, Controls and Fuel Economy Demonstration for City Bus Application in India
2021-09-22
2021-26-0055
India has leapfrogged to BS-VI OBD-A emission regulations since April 2020 and is heading towards BS-VI OBD-C implementation by April 2023. The Fuel Economy (FE) improvement for heavy commercial vehicles is mandated through enforcement of Heavy-Duty Fuel Economy Norms (HDFE-I by April 2021, HDFE-II by April 2023) as part of BS-VI regulation in India. This is navigating the commercial vehicle industry to explore various technology options to improve FE. Commercial vehicle applications such as City Buses and Mining Tippers have long engine idle durations either due to traffic conditions or loading-unloading pattern. This makes engine idle control and specifically Stop-Start Technology a more viable and attractive option for FE improvement. The current paper provides an overall approach and details related to Stop-Start technology integration at engine and vehicle level.