Improvement in Shift Quality in a Multi Speed Gearbox of an Electric Vehicle through Synchronizer Location Optimization Tata Motors, Limited

Format:

Conference/Event

Author/Creator:

Penta, Penta, author.

Contributor:

Gaidhani, Rohit

Sathiaseelan, Sampath Kumar

Warule, Prasad

Conference Name:

WCX 17: SAE World Congress Experience (2017-04-04 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2017

Summary:

AbstractElectrical and Series Hybrid Vehicles are generally provided with single speed reduction gearbox. To improve performance and drive range, a two-speed gearbox with coordinated control of traction motor and gearshift actuator is proposed. For a two-speed gearbox, gearshift without clutch would increase the shifting effort. Active Synchronization is introduced for a smoother gearshift even without clutch. The quality of gearshift is considered as a function of applied shift force and time taken. To enhance the quality of the gearshift further, the location of the synchronizer in the transmission system is optimized. To validate the improvement in the quality of the gearshift, a mathematical model of the two-speed gearbox incorporating proposed location of synchronizer assembly along with active synchronization is developed. The qualitative and quantitative analysis of the results achieved is presented

Notes:

Vendor supplied data

Publisher Number:

2017-01-1596

Access Restriction:

Restricted for use by site license