Abstract: Traditional electronic onboard scaling patents teach methods of attaching only permanent components to a vehicle to determine axle or vehicle weight. This patent teaches a method of using a combination of low-cost permanently attached components and a more expensive Portable Electronic Meter that can be shared between the multiple vehicles.

Abstract: An onboard process indicator is provided for measuring the load applied to an axle which is coupled to a vehicle. The onboard weight indicator includes a pivoting beam that is mounted to an axle of the vehicle. The pivoting beam is mounted so that it pivots about a point called the roll-center, which is the center of the suspension. The pivoting beam is also coupled to a transducer and a vertical support. The vertical support and transducer can be located on opposite sides of the roll-center with respect to one another or can be located on the same side of the roll-center. The vertical support and transducer are coupled between the pivoting beam and the frame rail of the vehicle. As a load is applied to the vehicle, the frame rail thereof is moved downwardly. This downward movement is measured by the transducer, which communicates the measured load to a processor. The processor translates the signal from the transducer into process units, and displays this as desired units.

Abstract: An onboard weighing device for a vehicle is provided which allows the weight sensor to be positioned off-center to accommodate centrally positioned vehicle components while still maintaining the accuracy of the average weight determined by the sensor. The weight sensor is mounted between a fixed point on the vehicle and a center averaging arm. The ends of the averaging arm are coupled with mounting arms which are in turn coupled with spaced apart portions of the suspension. Alternatively, the mounting arms can be coupled with the tandem axles or the drive differentials for those axles. The mounting arms are of different lengths so that the midpoint between the ends of the mounting arms coincides with the mounting point of the weight sensor on the center averaging arm. This results in the effective distance between the sensor and the load points on the axles being substantially equal despite the spacing of the sensor from the true centerline between the load points.

Abstract: An onboard device for determining the weight of a vehicle. A transducer is coupled at one end with a fixed point on the vehicle and is coupled at the other end with a single or tandem axle of the vehicle. The transducer measures the change in distance between the fixed point and the axle and sends an electrical signal to a display unit. The display unit processes the signal and displays the vehicle weight which corresponds to the signal received from the transducer. An upper carriage mounts the upper end of the transducer to the fixed point on the vehicle. A lower carriage couples the lower end of the transducer with the axle. Telescoping pipes shield the transducer. A grade compensating device corrects the signal generated by the transducer to compensate for nonlevel surfaces.