Method for setting the fill level when filling a cavity system and a vehicle seat system

摘要

A method for setting the fill level when filling a cavity system, in particular a cavity system in vehicle seat that exhibits one or more pressure chambers or bubbles for lumbar adjustments. With the method, a fill level set by the user is measured and a value representative thereof is stored. The value representative for the fill level is determined from a curve line that is characteristic for the respective cavity system.

主权项

1. A method for setting the fill level when filling a cavity system having one or more pressure chambers for lumbar adjustment in vehicle seats and for which cavity system a pressure over time curve line (1) is initially generated and stored in memory for both a pressure chamber fill operation and a pressure chamber emptying operation prior to a user using said cavity system to fill and empty said pressure chamber, said curve line (1) including a first curve branch (1a) including a plurality of time steps each representative of a value of pressure over time curve for said pressure chamber fill operation and a second curve branch 1(b) including a plurality of time steps each representative of a value of pressure over time curve for said pressure chamber emptying operation, said method comprising the steps of:
storing a current time step value for a current filled or emptied value of said pressure chamber; receiving, by a processor, from a cavity system actuation device, an indication to perform one of said pressure chamber fill operation or said pressure chamber emptying operation, said indication including a desired pressure chamber fill level time step value; and responsive to said received indication, said processor comparing said stored current chamber fill level time step value with said desired chamber fill level time step value and for causing said pressure chamber to fill or empty based on said comparison and said curve line (1) stored memory.