This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Derivation of Test Schedule for Jerk Test on Manual Gearbox Using Road Load Data
Technical Paper
2019-26-0347
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
Shock loads/Jerk is a major cause of gearbox failure which occurs during abusive driving condition. In passenger car torque spikes are experienced by the transmission during launch/sudden clutch release events on flat road or off-road. Whereas, in case of commercial vehicle torque spikes are generated while operation in mines and off-road application especially in tipper vehicles. Torque spikes experienced by the gearbox can lead to gear failure, gear slippage and structural failure of housing. Research has been done till now to improve the design of gearbox to address such failures. However, with increased focus on transmission downsizing and improved vehicle performance (by weight reduction and more powerful engine) it is necessary to have optimum design to meet transmission life. This paper discuss the test setup and methodology used to simulate the torque spikes on test bench. To develop the test procedure huge data was collected on commercial vehicles. Road load data was collected in various road mix conditions like mines, rough road, vehicle launch in 1st gear & Reverse gear on straight and gradient road for few hundred kilometers. During data collection gearbox output torque and gear position were recorded against time scale. After analyzing the vehicle data test procedure was derived and existing production & prototype transmissions were validated on test bench and vehicle to establish co-relation. With increased competition vehicle development time has reduced drastically in recent past. Bench test procedure discussed in this paper will help to reduce development time and cost. Process briefed in this paper can also be used for similar test specification for passenger car transmission (gearbox/transaxle).
Recommended Content
Technical Paper | Advancements in Automotive Transmission Sump Filtration |
Technical Paper | Vehicle Performance Predictions - A PC Method |
Technical Paper | Nonlinear Responses in Loaded Driveline Rattle |
Authors
Topic
Citation
Uttamani, R., Navale, P., Tendulkar, V., and Patel, H., "Derivation of Test Schedule for Jerk Test on Manual Gearbox Using Road Load Data," SAE Technical Paper 2019-26-0347, 2019, https://doi.org/10.4271/2019-26-0347.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 | ||
Unnamed Dataset 3 | ||
Unnamed Dataset 4 |
Also In
References
- Mulik , R. , Ramdasi , S. , and Marathe , N. Dynamic Simulation of 6 Speed Gearbox of Tipper Application to Improve Gear Contact Life SAE Technical Paper 2017-26-0060 2017 10.4271/2017-26-0060
- Jadhav , Y.M. and Dhanal , Y. Test Methodology with Shock Loads and Fatigue Limit of Press Fitted Gears on Shaft SAE Technical Paper 2013-01-2794 2013 10.4271/2013-01-2794
- Grewal , H. , Amato , A.D. , and Rossie , K. A Method for Rapid Durability Test Development SAE Technical Paper 2017-01-0199 2017 10.4271/2017-01-0199
- Lechner , G. and Nauhemier , H. Automotive Transmission Fundamental, Selection, Design and Application