Patent ID: 9050871
Filing Date: 2015-06-09
Classification: B60G

Abstract:
1. A method for temperature compensating an air spring of an air spring suspension of a motor vehicle after engine shut-off, comprising the steps of: obtaining a desired trim height; shutting off the engine; measuring ambient temperature; determining temperature of air in the air spring; measuring a start trim height at a predetermined time after the engine shut-off; determining after the engine shut-off, via a dedicated computer, a predicted trim height for when the air in the air spring will be at the ambient temperature responsive to said steps of measuring and said step of determining temperature; and selectively adjusting after the engine shut-off, via said dedicated computer, volume of the air in the air spring to thereby provide a target trim height such that when the temperature of the air spring is at the ambient temperature, the trim height will be substantially the desired trim height; wherein said step of selectively adjusting is responsive to said step of determining a predicted trim height; and wherein said step of selectively adjusting is performed if the predicted trim height at that respective wheel corner is different from the desired trim height by at least a predetermined minimum trim height difference.