Browse Publications Technical Papers 2017-01-1632
2017-03-28

Development of New Shift Control System using a Model-based Control Method for Toyota Stepped Automatic Transmissions 2017-01-1632

A new shift control system using a model-based control method for stepped automatic transmissions. Using a gear train numerical formula model, the model-based shift control system is constructed using minimum calibration parameters with feedforward and feedback controllers.
It also adopts control target values for the input shaft revolution and output shaft torque, thus enabling precise control that provides the most suitable shift feeling in various driving situations and for various vehicle characteristics. Furthermore, the model-based shift control system improves robustness in terms of disturbance elements such as production tolerance, time degradation, and use environment.
Toyota has adopted this model-based shift control system in its UA80/UB80 8-speed automatic transmissions for front-wheel-drive vehicles and its AGA0 10-speed automatic transmission for rear-wheel-drive vehicles. This paper describes the details of this model-based shift control system.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Hydrodynamic Synchromesh Automated Transmission Optimization and Control Aimed for Fuel Consumption Reduction

2012-01-0109

View Details

TECHNICAL PAPER

Evaluation of Cold Start Technologies on a 3L Diesel Engine

2016-01-0823

View Details

TECHNICAL PAPER

Shift Control System Development (NAVI·AI-SHIFT) for 5 Speed Automatic Transmissions Using Information From the Vehicle's Navigation System

2002-01-1254

View Details

X