Impact of Air Pressure Load on HVAC Kinematic Mechanism Subros, Limited

Format:

Book

Conference/Event

Author/Creator:

Parayil, Paulson, author.

Conference Name:

SAENIS TTTMS Thermal Management Systems Conference (2025-11-06 : Guwahati, India)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2025

Summary:

In Automobile AC system, HVAC is one of major component as it controls the air flow and air distribution based on cabin requirement. HVAC kinematics mechanism is used for controlling the air flow based on passenger requirement inside the cabin. The air flow movement inside HVAC has a severe impact on servo motor/cable torque which is controlling the mechanism.Simulation driven design method is widely used in world due to highly competitive automotive industry. Launching the product at the market within short span of time, with good quality and less cost is more challenging. Hence CAE/MBD based approach is more significant as it will reduce number of prototypes as well as the cost of testing.The objective of the analysis is to predict the HVAC servomotor torque required to operate the HAVC linkages under operating conditions. The air pressure load will have significant impact on damper face which will cause torque at CAM as well as servo lever center. The torque values at servo lever center of HVAC kinematic mechanism with and without air flow is measured. This data is compared with actual test results. Hyper mesh is used for the meshing of the model. Motion view is used for the kinematic analysis and results were extracted in Hyper view and hyper graph. The effect of the air pressure on the servo lever torque is studied and validated with the actual test results. There is good correlation observed on the analysis results with actual test results. The methodology further helped on the design phase of the HVAC kinematic design

Notes:

Vendor supplied data

Publisher Number:

2025-28-0368

Access Restriction:

Restricted for use by site license