Method and apparatus for adjusting and maintaining the height of a spring-action passenger seat
First Claim
1. A method for adjusting and maintaining the absolute seating surface height of a spring-action passenger seat, independent of interference factors, particularly in a motor vehicle, comprising the steps of:
- a) forming an absolute seating surface height from the total of a first, stationary basic component and a second, quasi-stationary regulation component, wherein said second, quasi-stationary regulation component can perform dampened oscillations around a reference value corresponding to the height of a person resting on the seat,b) continuously detecting the value of the second quasi-stationary regulation component as a measurement value and forming a time average value of the second quasi-stationary regulation component, andc) adjusting the seating surface height to compensate for the actual weight of a person resting on the seat by adapting said second quasi-stationary regulation component so that said time average value of the second quasi-stationary regulation component approaches said reference value.
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Abstract
The value of the absolute seat height may be formed from the sum of a first, stationary basic component and a second, quasi-stationary regulation component. The value of the regulation component may be adjusted, independent of the weight of a person resting on the seat, in such a way that it takes on the value of a reference value that corresponds to the height of a person resting on the seat, at least on the average over time. Preferably, a regulation mechanism activates the height adjustment device in steps, in the form of activation steps. Preferably, the activation periods are furthermore increased or decreased by a time component, if the previous activation step caused an overly small or overly large lift.
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Citations
20 Claims
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1. A method for adjusting and maintaining the absolute seating surface height of a spring-action passenger seat, independent of interference factors, particularly in a motor vehicle, comprising the steps of:
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a) forming an absolute seating surface height from the total of a first, stationary basic component and a second, quasi-stationary regulation component, wherein said second, quasi-stationary regulation component can perform dampened oscillations around a reference value corresponding to the height of a person resting on the seat, b) continuously detecting the value of the second quasi-stationary regulation component as a measurement value and forming a time average value of the second quasi-stationary regulation component, and c) adjusting the seating surface height to compensate for the actual weight of a person resting on the seat by adapting said second quasi-stationary regulation component so that said time average value of the second quasi-stationary regulation component approaches said reference value. - View Dependent Claims (2)
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3. An apparatus for adjusting and maintaining the absolute seating surface height of a spring-action passenger seat, independent of interference factors, particularly in a motor vehicle, comprising:
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a) means for adjusting a first, stationary basic component of the absolute seating surface height value; b) means for adjusting a second, quasi-stationary regulation component of the absolute seating surface height value; c) a resiliency regulation mechanism controlling the means for adjusting the second, quasi-stationary regulation component to allow dampened oscillations of the seat around a reference value for the second, quasi-stationary regulation component; and d) a measurement device continuously detecting the value of the second, quasi-stationary regulation component and deriving a time average value of the second quasi-stationary regulation component from the measurement values and providing this time average value to the regulation mechanism, wherein said regulation mechanism controls said means for adjusting the second, quasi-stationary regulation component so that the time average value of the second quasi-stationary regulation component of the absolute seating surface height approaches the value of the reference value independent of the actual weight of a person resting on the seat. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification