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Method for calibrating an angle sensor and vehicle with an angle sensor

An angle sensor and angle technology, applied in the direction of earth mover/excavator, construction, etc., can solve the problem of inconsistency in the control of movement speed and stop position

Inactive Publication Date: 2011-11-16
VOLVO CONSTR EQUIP AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In addition, prior art methods and devices have the problem of inconsistent control of motion speed and stop position

Method used

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  • Method for calibrating an angle sensor and vehicle with an angle sensor
  • Method for calibrating an angle sensor and vehicle with an angle sensor
  • Method for calibrating an angle sensor and vehicle with an angle sensor

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Embodiment Construction

[0032] In the drawings, the same or similar elements are denoted by the same reference numerals. The drawings are merely schematic representations, not intended to demonstrate specific parameters of the invention. Moreover, the drawings are intended to depict only typical embodiments of the invention, and therefore should not be considered as limiting the scope of the invention.

[0033] figure 1 shows the initial angle θ considered in the method according to the invention 0 , an illustration of the adjustable angle γ (ie the angle corresponding to the extreme value of the angle sensor) and the maximum angle Ω. As an example, an articulated work machine (not shown) has one or more physical limits, ie mechanical stops, represented by an adjustable angle γ corresponding to the extreme value of the angle sensor. This mechanical stop, ie the adjustment angle γ, may change over time, especially increase over time, for example due to wear.

[0034] At an early stage of the worki...

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PUM

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Abstract

The invention relates to a method for calibration of at least one angle sensor (10a, 10b, 10c) sensing an angular position of a pivotable element (102, 104, 106) rotatable from a first position to a maximum position, wherein during an operation time of the pivotable element (102, 104, 106) at least one adjustable angle (gamma) corresponding to an extreme value of the angle sensor (10a, 10b, 10c) is automatically maintained or updated depending on at least one measured angle (theta m) determined by the at least one angle sensor (10a, 10b, 10c).

Description

technical field [0001] The invention relates to a method for calibrating an angle sensor and a vehicle with an angle sensor. Background technique [0002] It is known in the prior art that construction equipment (for example construction machines for moving earth, such as excavators, etc.) require an increasing number of angle sensors at the respective mechanical coupling. Often such angle sensors and mechanical linkages do not provide the required tolerances during operation and must therefore be calibrated. However, such calibration requires specialized personnel and additional maintenance time. [0003] Construction machines, such as wheel loaders, include work tools that are capable of moving through multiple positions during a work cycle. Typically, such work tools include buckets, forks, and other material handling devices. For example, a typical work cycle associated with a dipper includes sequentially positioning the dipper and associated lift arm in the following...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02F9/26
CPCE02F9/2025E02F9/264E02F9/26E02F9/265
Inventor 扬·卡尔森安德烈亚斯·埃克瓦尔
Owner VOLVO CONSTR EQUIP AB