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Design of Valve Body Integrated Direct Acting Controids
Technical Paper
2020-01-0965
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The latest trend in transmission hydraulic controls development ise body integrated direct acting control solenoid, ted by multiple automotive OEMs. The advantages of integrated direct acting control solenoids are key enablers for OEMs to meet more and more stringent fuel economy requirement and competitive environment. In the meantime, there are unique challenges in both designing and manufacturing of such solenoids, due to the fact the solenoid armature can only push the spool valve with limited force and limited stroke. Through analytical methods, this paper explains design guidelines to overcome the challenges and quantifies the impact of design decision to critical functional objectives. Multiple valve design configurations, including both normally low and normally high functionality, are covered in the analysis. Unique manufacturing process concerns are also addressed.
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Citation
Xie, Z., "Design of Valve Body Integrated Direct Acting Controids," SAE Technical Paper 2020-01-0965, 2020, https://doi.org/10.4271/2020-01-0965.Also In
References
- Waterstredt , J. Evaluation of Trends in Hydraulic Controls of Automatic Transmission 13th International CTI Symposium 2019
- Merritt , H.E. Hydraulic Control Systems John Wiley & Sons 1967
- Basavaraj , H. and Vilas , S. Theoretical Analysis of Steady State Operating Forces in Control Valves MATEC Web of Conferences 144 01002 2018