This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Driveline Torque Profiling Based on Speed Estimation for xEVs
Journal Article
2020-01-0964
ISSN: 2641-9645, e-ISSN: 2641-9645
Sector:
Topic:
Citation:
Oh, J., Eo, J., Kim, S., and Kim, D., "Driveline Torque Profiling Based on Speed Estimation for xEVs," SAE Int. J. Adv. & Curr. Prac. in Mobility 2(5):2776-2783, 2020, https://doi.org/10.4271/2020-01-0964.
Language:
English
Abstract:
This paper suggests a method to formulate the driveline torque command for vehicles that use electric motor as part of their sources for providing driving power. The shape of the driveline torque profile notably influences the drivability criteria of the vehicle, and among them, driveline NVH and responsiveness are often tradeoffs for each other. Hence the real-time computed driveline torque profiling (DTP) enables formulation of the effective torque command at any given time to simultaneously satisfy both NVH and responsiveness criteria. Such task is fulfilled by using a shaft distortion prediction model based on a motor speed observer. A compensation torque command based on the amount of shaft distortion is formulated to prevent the shaft distortion with minimum effort. The effectiveness of the suggested driveline torque profiling method is verified using an actual vehicle, and the vehicle NVH and responsiveness are numerically assessed for comparison.
Recommended Content
Technical Paper | NVH Technologies and Challenges on Electric Powertrain |
Technical Paper | Development of Mount for Electric Powertrains - A Multi Degree of Freedom Optimization Approach |