Measurement system for a material transfer vehicle

A measurement system and material technology, applied in the field of measurement system, can solve the problems of inaccurate output value and inaccuracy, and achieve the effect of good stability and good weighing accuracy

Active Publication Date: 2012-10-17
TAMTRON OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in case of fast movement of the carrier, the accelerometer may provide inaccurate output values
Because the absolute angle / position is obtained based on integrating the output of the accelerometer, inaccuracies accumulate during the motion of the accelerometer and require frequent zeroing of the accelerometer circuit

Method used

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  • Measurement system for a material transfer vehicle
  • Measurement system for a material transfer vehicle
  • Measurement system for a material transfer vehicle

Examples

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Embodiment Construction

[0028] described in the prior art section above figure 1 .

[0029] figure 2A block diagram of a measurement system 20 according to one embodiment of the invention is shown. The system has a first type of sensor unit 21 for weighing the load of the carrier. The first sensor unit can be, for example, a strain gauge transducer or a pressure transducer whose output signal is proportional to the load weight. Strain gauge transducers may be mounted to the boom or at an articulated joint between the cabin / chassis and the boom, between two booms and / or between the boom and the carrier. Pressure transducers are mounted in one or more hydraulic cylinders that move the boom / carrier. In some systems, a pressure sensor may measure air pressure from a pneumatic cylinder. The signal from the first sensor unit is directed to the electronic unit 28 by wireless data transfer or cable, and said signal is further amplified and converted into digital form in an analog-to-digital (A / D) conve...

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PUM

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Abstract

This invention relates generally to a measurement system (20) of a material transfer vehicle. The present invention can be applied in weighing a load of the vehicle. The material transfer vehicle may be e.g. a wheel loader, a forklift, an excavator, a dumper, a forwarder, a harvester, a crane, a passenger hoist, a timber jack, or a truck such as a a fire truck, forklift truck, a pallet truck, a reach truck, or a garbage truck. Prior art measuring systems often have insufficient capability to compensate varying positions and movement of the material transfer vehicle structures. The object of the invention is met by a solution, wherein a material transfer vehicle has at least one first sensor unit (21) including a weighing sensor for weighing a load of a vehicle, and at least one second sensor unit (22a, 22b, 22c) for measuring an angular position / movement of a boom and / or a carrying means of the vehicle. According to the invention, the second sensor unit has a gyroscope.

Description

technical field [0001] The present invention generally relates to a measurement system for a material transfer vehicle. More specifically, the invention relates to the system disclosed in the preamble of claim 1 . The invention can be applied to weighing the load of a vehicle as well as for other measurement purposes. The material transfer vehicle may be, for example, a wheel loader, a forklift, an excavator, a dump truck, a conveyor, a harvester, a crane, a passenger elevator, a beam jack, or a truck (such as a fire engine, forklift, pallet truck, reach truck or garbage truck). Background technique [0002] Material transfer vehicles typically include a weighing arrangement for weighing the material being handled or carried. figure 1 An exemplary material transfer vehicle according to the prior art, wheel loader 10 is shown positioned on ground 90 . The wheel loader has a bucket 12 as a carrier for the material to be conveyed. The bucket is connected to the body part / c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G19/03
CPCE02F9/264E02F9/26E02F9/24G01G19/083
Inventor 彭蒂·阿西凯宁
Owner TAMTRON OY
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