This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Measuring Automatic Transmission Shift Performance
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1965 by SAE International in United States
Annotation ability available
Event: Mid-Year Meeting
Results of a psychophysical experiment indicated that “jerk” (that is, rate of change of fore and aft acceleration) associated with the clutch-actuated gear ratio change in an automatic transmission correlated well with subjective evaluations of shift-feel. A portable device, the GMR Jerkmeter, was constructed to measure acceleration and jerk during on-the-road evaluations of transmission performance.
Techniques for using Jerkmeter data in automatic transmission fluid research and development projects are discussed. Examples are given of the use of Jerkmeter data to:
Produce a detailed characterization of shift performance.
Measure effect of fluid on shift performance.
Study effect of changes in fluid characteristics with use.
|Technical Paper||AUTOMATIC TRANSMISSION TESTING|
|Technical Paper||Reverse System Design for a Motorcycle|
|Technical Paper||Leveraging a Commercial Medium-Duty Product for the Heavy-Duty Pickup Truck Market|