The Utilization of Onboard Sensor Measurements for Estimating Driveline Damping

2019-01-1529

06/05/2019

Event
Noise and Vibration Conference & Exhibition
Authors Abstract
Content
The proliferation of small silicon micro-chips has led to a large assortment of low-cost transducers for data acquisition. Production vehicles on average exploit more than 60 on board sensors, and that number is projected to increase beyond 200 per vehicle by 2020. Such a large increase in sensors is leading the fourth industrial revolution of connectivity and autonomy. One major downfall to installing many sensors is compromises in their accuracy and processing power due to cost limitations for high volume production. The same common errors in data acquisition such as sampling, quantization, and multiplexing on the CAN bus must be accounted for when utilizing an entire array of vehicle sensors. A huge advantage of onboard sensors is the ability to calculate vehicle parameters during a daily drive cycle to update ECU calibration factors in real time. One such parameter is driveline damping, which changes with gear state and drive mode. A damping value is desired for every gear state. Recent years have seen an increasing number of forward gear ratios, from 8-10 in production vehicles. This study estimates driveline damping values while analyzing the influence of afore mentioned data acquisition parameters. It will conclude by recommending processing best practices for onboard measurements.
Meta TagsDetails
DOI
https://doi.org/10.4271/2019-01-1529
Pages
14
Citation
Furlich, J., Blough, J., and Robinette, D., "The Utilization of Onboard Sensor Measurements for Estimating Driveline Damping," SAE Technical Paper 2019-01-1529, 2019, https://doi.org/10.4271/2019-01-1529.
Additional Details
Publisher
Published
Jun 5, 2019
Product Code
2019-01-1529
Content Type
Technical Paper
Language
English