Improvement in Gear Shift Comfort by Reduction in Double Bump Force of Passenger Vehicles

Santosh Deshmane; Onkar Gangvekar; Samson Rajakumar

doi:10.4271/06-11-01-0006

2017-10-08

Improvement in Gear Shift Comfort by Reduction in Double Bump Force of Passenger Vehicles 06-11-01-0006

This also appears in SAE International Journal of Passenger Cars - Mechanical Systems-V127-6EJ

In today’s competitive automobile market, driver comfort is at utmost importance and the bar is being raised continuously. Gear Shifting is a crucial customer touch point. Any issue or inconvenience caused while shifting gear can result into customer dissatisfaction and will impact the brand image.

While there are continual efforts being taken by most of the car manufactures, “Double Bump” in gearshift has remained as a pain area and impact severely on the shift feel. This is more prominent in North-South (N-S) transmissions.

In this paper ‘Double Bump’ is a focus area and a mathematical / analytical approach is demonstrated by analyzing ‘impacting parameters’ and establishing their co-relation with double bump. Additionally, the results are also verified with a simulation model.

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Improvement in Gear Shift Comfort by Reduction in Double Bump Force of Passenger Vehicles 06-11-01-0006

This also appears in SAE International Journal of Passenger Cars - Mechanical Systems-V127-6EJ

SAE MOBILUS