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Sensor temperature-compensated electro-hydraulic proportional valve controller

An electro-hydraulic proportional valve, temperature compensation technology, applied in valve details, valve device, valve operation/release device, etc., can solve the problems of nonlinear discreteness of sensors, differences in sensor sensing characteristics, etc., to improve environmental adaptability , avoid cumulative error, the effect of precise digital control

Active Publication Date: 2015-04-08
ZHEJIANG UNIV +1
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Problems solved by technology

It is not difficult to find that the timely and accurate data feedback of sensor data is very important for the control of electro-hydraulic proportion. there will be some differences

Method used

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  • Sensor temperature-compensated electro-hydraulic proportional valve controller
  • Sensor temperature-compensated electro-hydraulic proportional valve controller

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Embodiment Construction

[0018] An electro-hydraulic proportional valve controller with sensor temperature compensation, comprising a storage module 4, a power module 3, a core processing module 1, a status display module 2, a power drive module 9, an electro-hydraulic proportional valve 8, a displacement sensor 6, and a temperature sensor 7 , a pressure sensor 5 and an A / D converter 10.

[0019] The state display module 2, the power drive module 9, the A / D converter 10, the storage module 4 and the power supply module 3 are all connected to the core processing module 1; the output terminal of the power drive module 9 is connected to the electro-hydraulic proportional valve 8, the pressure sensor 5 and the input end of the displacement sensor 6 are connected to the electro-hydraulic proportional main valve 8, the input end of the temperature sensor 7 is connected to the pressure sensor 5 and the displacement sensor 6, and the output ends of the temperature sensor 7, the pressure sensor 5 and the displa...

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Abstract

The invention discloses a sensor temperature-compensated electro-hydraulic proportional valve controller. The electro-hydraulic proportional valve controller consists of a memory module, a power supply module, a core processing module, a state display module, a power driving module, an electro-hydraulic proportional valve, a displacement sensor, a temperature sensor, a pressure sensor and an A / D converter. The electro-hydraulic proportional valve controller adopts the sensor temperature compensation measure to timely correct the influence of various errors on the valve control through the real-time sensor data feedback, so that the more stable and precise digital control to the electro-hydraulic proportional valve is realized, and the environment adaptive capacity is improved.

Description

technical field [0001] The invention relates to an electro-hydraulic proportional valve controller with sensor temperature compensation. technical background [0002] Today, as a bridge connecting modern microelectronics technology, computer control technology and high-power engineering control equipment, electro-hydraulic proportional valve control technology has been widely used in special vehicles, construction machinery and other industrial fields. Electro-hydraulic proportional valve controller is through The electric signal is used to control the proportional electromagnetic drop to achieve the electrical control device for controlling the pressure and flow of the proportional valve. [0003] Compared with the traditional type of hydraulic controller, the electro-hydraulic proportional valve controller can timely correct the error accumulation caused by the use of multi-stage amplifiers and the influence of the temperature drift effect of devices at all levels on the v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/02F16K31/02
CPCF15B13/02F16K31/02
Inventor 张斌刘威张佳王双杨华勇
Owner ZHEJIANG UNIV
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