HIGH ACCURACY LOAD DETECTION FOR AIR SUSPENSION SYSTEMS

摘要

A suspension system comprises an air supply unit and four air spring corner assemblies. The air supply unit including an ECU is fluidly connected to the air spring corner assemblies and is capable of independently adjusting the air spring corner assemblies from one another. A first pressure sensor is located at a valve block of the air supply unit. The pressure signal from the first pressure sensor is used to determine a vehicle load. A second pressure sensor proximate to at least one air spring to detect air pressure of the system at that air spring and to calibrate an air pressure for at least one of the other air springs.

主权项

1. An air suspension system comprising:
four air spring corner assemblies, wherein one air spring corner assembly is located at a suspension position corresponding to each of the wheel corners for the vehicle; an air supply unit including an ECU fluidly connected to the air spring corner assemblies, wherein the air supply unit is capable of independently adjusting the air spring corner assemblies from one another; a first pressure sensor located at a valve block of the air supply unit, where the pressure signal from the first pressure sensor is used to determine a vehicle load; and a second pressure sensor proximate to at least one air spring to detect air pressure of the system and to calibrate an air pressure for that spring and at least one of the other air springs.