The industry is evolving and the cooperation of mechanical, electronical and information systems in machines and systems becomes increasingly closer. A new functionality and productivity of machines can only be conceived and implemented with an interaction of the components. Not only does Simcenter Amesim help you bring together mechanical, hydraulic, electrical, pneumatic and thermal components, it also enables you to address challenges related to task scheduling and event management when modeling controllers’ architecture.
To facilitate the creation of statecharts, Simcenter Amesim offers you an intuitive environment to model and simulate complex logic.
Let’s take an example of an electronic control unit of the gasoline injector solenoid.
Electronic control unit
The solenoid of the injector is driven by a dedicated electronic control.
It is made of:
The statechart is defined by:
The solenoid is driven to be closed and then released. During the closing two modes can be distinguished: the peak mode and the hold mode.
During the peak mode, the maximum voltage is applied to the solenoid in order to have the fastest closing.
During the hold mode, the current in the solenoid is controlled in order to be maintained closed with a minimum solenoid current.
It is then possible to fully characterize the injector by looking at the injected mass flow rate with respect to pressure and pulse duration.
To sum up, the Statechart Environment helps you design logic for supervisory control, task scheduling, and fault management applications when modeling systems.
Simcenter Amesim allows you to simulate combinatorial and sequential decision logic based on state machine.