SuperFlow AutoDyn, Руководство оператора

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Control Modes
11-8 AutoDyn Chassis Dynamometer Operator Manual
Examples
• Throttle Control with Electric Actuator
If the actuator phase is 0, and the manual throttle position control is varied from 0 to 100%
on the controller, the throttle actuator will move the throttle from fully closed (idle) to fully
opened (WOT) position.
If the actuator phase is 1, and the manual throttle position control is varied from 0 to 100%
on the controller, the throttle actuator will move the throttle from fully opened (WOT) to
fully closed (idle) position.
The throttle controller typically requires an actuator phase of 0.
In some situations, such as when the throttle actuator is mounted on the reverse side of the
throttle lever, the actuator phase will be 1. Take care in these situations because the throttle
actuator will be at its 100% position for engine idle. When power is turned off, the throttle
actuator will return to its 0% position, or WOT, on the engine.
• Eddy Current Dynamometer Load Control
If the actuator phase is 0, and the manual load control is varied from 0 to 100% on the
controller, the coil excitation current will increase from 0 to 100% and the dynamometer
load will increase from zero load to full load.
If the actuator phase is 1, and the manual load control is varied from 0 to 100% on the
controller, the coil excitation current will decrease from 100 to 0% and the dynamometer
load will decrease from full load to zero load.
Eddy current dynamometer load controllers typically require an actuator phase of 0.
• SuperFlow Water Brake Load Control
The SuperFlow water brake is an outlet-controlled device. If the actuator phase is 0 and the
manual load control is varied from 0 to 100% on the controller, the servo valve position will
change from 100% (fully closed) to 0% (fully open), and the dynamometer load will
decrease from full load to no load.
If the actuator phase is 1, and the manual load control is varied from 0 to 100% on the
controller, the servo valve position will change from 0% (fully open) to 100% (fully closed),
and the dynamometer load will increase from no load to full load.
Water brake dynamometers with the load controller on the outlet typically require an
actuator phase of 1. The phase will be 0 when the load controller is on the inlet.
11.5.2 Controller Phase
The controller phase (allowed values: 0 or 1) determines closed-loop control polarity, i.e., the
direction of movement of the controller output as a response to a change in the feedback signal
(the controlled parameter). If the controller phase is 1, when the feedback signal increases, the
controller output signal will increase. If the controller phase is 0, when the feedback signal
increases the controller output signal will decrease.
NOTE:
The actuator phase must be properly determined before the controller phase is set because
the actuator phase also has an impact on the aggregate polarity of the closed-loop control system.