Method for controlling automatic leveling system of special vehicle

An automatic leveling and control method technology, applied in the field of control, can solve difficult problems such as high leveling accuracy and low production cost, complex control method, and a large amount of processing information, and achieve simple control method, high leveling accuracy, and low cost effect

Inactive Publication Date: 2009-10-21
HANGZHOU HENGHONG MASCH CO LTD
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Problems solved by technology

After research, it is found that the high cost is mainly reflected in the following aspects. First, in order to accurately collect the support force of each jack, pressure sensing components are installed at the appropriate positions of each jack; second, four linear displacement sensors are used to realize each jack. Accurate collection of the stroke size of the jack; the third is to use the Hall current sensor

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  • Method for controlling automatic leveling system of special vehicle
  • Method for controlling automatic leveling system of special vehicle
  • Method for controlling automatic leveling system of special vehicle

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[0014] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0015] Reference figure 1 , figure 2 , image 3 As shown, the present invention proposes a new control method for the low-cost and low-complexity control requirements of the automatic leveling system of special vehicles. Such as image 3 As shown, after the control system receives the leveling command, the microprocessor sends a control signal, which is transmitted to the drive circuit to drive the DC motor, so that the supports 1, 2, 3, and 4 will land on the ground in sequence (such as figure 1 (Shown), according to the upper limit switch status installed on the four jacks, judge whether one of the jacks has reached the maximum stroke, if not, then receive the current inclination of the vehicle detected by the dual-axis inclination sensor corresponding to X, Y Axis horizontal inclination θx, θy (e.g. figure 2 Shown), and the pre-calibrated dual-axis inclinati...

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Abstract

The invention relates to a method for controlling an automatic leveling system of a special vehicle. By adjusting the lifting of an electric jack, the automatic leveling of the vehicle under specific conditions is realized. When an automatic leveling command is sent to a controller, a control system enters an automatic leveling program; a microprocessor sends a signal to a drive circuit to drive a motor to make four brackets landed; and related data of the current inclination condition of the vehicle detected by a double-shaft inclination angle sensor and an angle value of a pre-calibrated balance state are compared, if horizontal error exceeds the allowed range, according to the stroke magnitude of the four electric jacks, the microprocessor generates a control signal according to a definite leveling method to make the jacks move up and down so as to drive the inclination angle of the vehicle to change in opposite directions and finally achieve the aim that the leveling of the vehicle meets the precision requirement. The control method is simple and convenient and easy to realize, has the advantages of high leveling precision, stable work, reliable performance and low hardware resource requirement, and greatly lowers the product cost.

Description

technical field [0001] The invention relates to a control method, in particular to a control method for an automatic leveling system of a special vehicle. Background technique [0002] Special vehicles mainly refer to special vehicles suitable for military, news, petroleum, health, tourism, fire rescue, earthquake command and other industries. Since 2000, my country's economy has developed rapidly, people's requirements for quality of life and social security have increased rapidly, and the research and development of special vehicle-related technologies has increasingly attracted the attention of scientific and technological workers. As an important control technology for special vehicles, automatic leveling has attracted extensive attention from automotive electronics research and development institutions. Most of the existing vehicle automatic leveling systems use multi-sensors to collect various state information of the vehicle, and use high-performance microprocessors ...

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Application Information

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IPC IPC(8): B60S9/04G01C9/00
Inventor 蒋燕君王国忠
Owner HANGZHOU HENGHONG MASCH CO LTD
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