Control method and control system
A control method and technology of a control system, which are applied in the field of control of position regulators and can solve problems such as no absolute position sensor.
Pending Publication Date: 2021-10-22
HANGZHOU SANHUA RES INST CO LTD
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Problems solved by technology
[0002] Some systems need to use a position regulator to control the on-off of the flow path or adjust the flow or throttling, etc. The position regulator can adjust the on-off of the fluid passing through the position regulator or adjust the flow path through the position regulator , the position regulator has an action actuator, which can be driven to change the flow path through the position regulator or adjust the fluid flow path. The position regulator is used in some systems such as motor vehicles. The position regulator is in The position during use will not be exactly the same, so the system needs to grasp or control the relatively accurate position of the action part of the position regulator, some will set an absolute position sensor on the position regulator, but some will not have an absolute position sensor
Method used
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[0027] The technical solution will be described below in conjunction with specific implementation methods, as shown in the figure, figure 1 It is a module schematic diagram and a communication connection schematic diagram of the first embodiment of the control system where the position regulator is located. The position regulator 20 of this embodiment includes a controller 23 and an action actuator 200. The position regulator 20 communicates with the LIN master through the LIN bus 24 The nodes communicate with the master controller. The controller 23 includes a transceiver module 25, a processing module 26, a motor drive control module 27, and a drive module 28. The position regulator 20 also includes a detection module 29. The action actuator 200 includes a motor 201, a transmission system 202, and an action piece 203. It can be various types of motors such as stepping motors, DC brush motors, DC brushless motors, etc. The transmission system 202 can be omitted, and can be sp...
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The invention discloses a control method and a control system. The control method and control system can be used for controlling a position regulator; the position regulator comprises a motor and an action piece; the position regulator is provided with at least one abutting part abutting against the action piece; and in the power-on or wake-up stage of the position regulator, the control method performs control through a processing module, so that the action piece of the position regulator moves towards a direction in which the action piece abuts against the abutting parts or one of the abutting parts, and whether the action piece abuts against the abutting part or not or whether the action piece reaches a position where the action piece abuts against the abutting part or not is judged through a detection module; the current position information of the position regulator is updated with the position where the action piece abuts against the abutting part, or the position regulator is controlled based on the position, so that the control system can relatively accurately obtain the actual physical position of the position regulator.
Description
【Technical field】 [0001] The invention relates to the field of fluid control, in particular to a control for a position regulator. 【Background technique】 [0002] Some systems need to use a position regulator to control the on-off of the flow path or adjust the flow or throttling, etc. The position regulator can adjust the on-off of the fluid passing through the position regulator or adjust the flow path through the position regulator , the position regulator has an action actuator, which can be driven to change the flow path through the position regulator or adjust the fluid flow path. The position regulator is used in some systems such as motor vehicles. The position regulator is in The position during use will not be exactly the same, so the system needs to grasp or control the relatively accurate position of the action part of the position regulator, some will set an absolute position sensor on the position regulator, but some will not have an absolute position sensor. ...
Claims
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IPC IPC(8): G05D7/06
CPCG05D7/0635
Inventor 不公告发明人
Owner HANGZHOU SANHUA RES INST CO LTD