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Axle pressure control system

  • US 6,371,227 B2
  • Filed: 09/24/1999
  • Issued: 04/16/2002
  • Est. Priority Date: 09/24/1999
  • Status: Expired due to Term
First Claim
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1. A load hauling vehicle including an automated auxiliary axle deployment control system for varying auxiliary axle support comprising:

  • (a) a load hauling vehicle including a plurality of deployable fluid-operated auxiliary support axles;

    (b) a plurality of load sensing devices placed at different locations and with respect to a plurality of axles on the vehicle for determining the total payload of the vehicle and distribution thereof, including the side-to-side payload distribution, in real-time, each load sensing device producing output signals indicative of the load supported at a location;

    (c) a plurality of automatically operable pressure modulation valves, one for adjusting the force applied to a corresponding one of said auxiliary support axles to deploy and adjust the load carried thereby;

    (d) signal processing system for receiving input signals from said load sensing devices and producing output control signals for operating said plurality of pressure modulation valves.

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