Actuator for HVAC systems and method for operating the actuator

US8521332B2 · kind B2 · utility

Assignee

• BELIMO Holding AG · CH

Inventors

• Dirk Tiemann · Hannover, DE
• Urs Gort · Zürich, CH

Key dates

• Filing date: Jul 3, 2008
• Grant date: Aug 27, 2013
• Expiry date: Mar 4, 2029

Classification

• Technology area (CPC G): Physics
• CPC primary: G05B2219/13148
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

An actuator for an HVAC system having a stored model definition defining an HVAC control application, and an element library including a variety of stored model elements and controller modules (D, E) having instructions for controlling a processor of the actuator. The controller modules (D, E) include model elements and are configured to control the sequential order of their execution. The controller modules (D, E) are further configured to propagate any external data input (S66′, S68′) to their model elements prior to executing their first model element, and to propagate any data output (S63, S65, S67, S69) to external components after executing their last model element. The controller modules (D, E) are instantiated in different threads of execution, so that data is interchanged asynchronously between instantiated controller modules (D, E) and neither temporal dependencies nor change of value links are imposed on components of the HVAC control application.