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Patent US5142897A successfully refreshed from Google Patents.
US5142897A
Expired / Lapsed
US
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Height adjustment in a vehicle fitted with air suspension
Assignee: Robert Bosch GmbH
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Filing: 1988-04-14
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Granted: 1992-09-01
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Expires: 2008-04-14
Abstract
Abstract A height sensor (20) of a height regulating device of an air spring suspension system of a vehicle is calibrated by using the air spring bellows (16) as jacks while the height regulation by the control device (44) is disabled. A dialog is set up between a test device (50) connected by an interface (52) with the control device (44), whereby the test device (50) takes over the control of the air supply to and from the air spring bellows (16) and the height of the vehicle body (10) is brought to a desired null height. The output (h n ) of the sensor (20) is then stored in a non-volatile memory and is used as a reference height (h o ) for the height regulation.
Inventors
- 👤 Jurgen Pischke
- 👤 Engelbert Tillhon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:27
CPC Classifications
B; B60; B60G; B60G17/00; B60G17/015; B60G17/0152; B60G17/0155; G; G01; G01D; G01D18/00; G01D5/00; G01D5/12; G01D5/14; G01D5/16; G01D5/165; B60G2202/00; B60G2202/10; B60G2202/15; B60G2202/152; B60G2400/00; B60G2400/25; B60G2400/252; B60G2600/00; B60G2600/22; B60G2600/26; B60G2600/70
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
71 words
A method of calibrating a height sensor in an electronically controlled height regulating device of a multiple air spring suspension system of a vehicle, the method comprising the steps of: disabling the height regulating function and externally controlling the air springs to bring the body height to a desired null position; and, then programming said null position into the regulating device to serve as a reference value for the height regulation.
Claim 2
Independent Claim
71 words
A method of calibrating a height sensor in an electronically controlled height regulating device of a multiple air spring suspension system of a vehicle, the method comprising the steps of: disabling the height regulating function and externally controlling the air springs to bring the body height to a desired null position; and, then programming said null position into the regulating device to serve as a reference value for the height regulation.
Claim 3
Dependent Claim
39 words
The method of claim 1, wherein the height sensor is secured in a roughly adjusted position after the vehicle body is brought to the desired null position and before the height sensor reading is programmed into the regulating device.
Claim 4
Dependent Claim
50 words
The method of claim 1, wherein, after the null position is programmed into the regulating device, the vehicle body is raised by using the air springs until the air springs are fully expanded and the corresponding height sensor reading is programmed into the regulating device as a maximum height value.
Claim 5
Dependent Claim
51 words
The method of claim 1, wherein, after the null position is programmed into the regulating device, the vehicle body is lowered by using the air springs until the body is resting on stops thereof and the corresponding height sensor reading is programmed into the regulating device as a minimum height value.
Claim 6
Dependent Claim
49 words
The method of claim 1, wherein an external test device is plugged into a serial data interface, with which the height regulating device is provided, and an external computer is used to control the air springs and to enter the height sensor reading or readings into the regulating device.
Claim 7
Dependent Claim
33 words
The method of claim 1, wherein the vehicle is fitted with a remote control for the adjustment of the body height and the remote control is programmed to carry out the calibration function.
References Cited (Backward Citations)
EP0091017A2
Cited
US4575115A
Cited
US4593920A
Cited
GB2160324A
Cited
EP0216522A2
Cited
US4761608A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-09-01 | 1996-03-02 | 1996-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-01 | 2000-03-02 | 2000-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-01 | 2004-03-02 | 2004-09-01 | $7700.00 | Window Closed / Lapsed |