On-board vehicle weighing system
First Claim
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1. A vehicle weighing method for measuring the loaded weight of a vehicle axle assembly, comprising:
- associating two values with an axle assembly of a vehicle;
producing an analog electrical signal related to the weight on the vehicle axle assembly;
converting the weight related signal to digital form;
processing the weight related signal to form an axle weight measurement related to a function of the weight related signal and the values; and
visually indicating the axle weight measurement.
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Abstract
A method and apparatus for determining vehicle weight measurements using an on-board weighing system comprises a plurality of sensor assemblies each generating a weight related electrical signal and a processing and display unit. Each weight related signal is processed in the unit using two constant values which are stored in the unit. The constant values are calibrated at two vehicle weights, providing accurate vehicle weight measurements through a range of vehicle weights.
73 Citations
26 Claims
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1. A vehicle weighing method for measuring the loaded weight of a vehicle axle assembly, comprising:
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associating two values with an axle assembly of a vehicle; producing an analog electrical signal related to the weight on the vehicle axle assembly; converting the weight related signal to digital form; processing the weight related signal to form an axle weight measurement related to a function of the weight related signal and the values; and visually indicating the axle weight measurement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A weight measuring apparatus for a vehicle having a frame and a frame supporting axle assembly, comprising:
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a sensor assembly mounted between the frame and the axle assembly for producing an analog electrical signal related to the weight carried on the axle assembly, the axle assembly having associated therewith a ratio value and an unsprung weight value; an analog to digital converter electrically coupled to the sensor assembly for producing a digital signal corresponding to the analog electrical signal; a processor for processing the digital signal by adding the unsprung weight value to the product of the ratio value and the digital signal to produce axle weight data; and a display for visually indicating weight measurements of the vehicle responsive to the axle weight data. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification