Patent US6034597A successfully refreshed from Google Patents.
US6034597A
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Process for evaluating the signals from a tire pressure monitoring system
Assignee: BorgWarner Ludwigsburg GmbH
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Filing: 1997-07-18
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Granted: 2000-03-07
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Expires: 2017-07-18
Abstract
Abstract A method for processing signals of a tire pressure monitoring system on vehicles on each of whose N wheels (R1 through R5) a transmitter is mounted and a reception antenna (1 through 5) which is connected to the input of a common receiver (8) is allocated to each transmitter in its vicinity, the transmitters transmitting, at time intervals, data telegrams which contain an individual identifier and a data portion following the latter. The signals received simultaneously from the reception antennas (1 through 5) and having the same identifier are conveyed in summed fashion to the receiver (8), alternately from all N reception antennas (1 through 5) and from N-1 reception antennas (1, 2, 4, 5), such that the one reception antenna (3) whose signal is blanked out of the sum of the signals is selected by cyclical transposition from the total number N of reception antennas (1 through 5). Then the intensity of the summed signals is determined, the intensity of the sums of N-1 signals is compared in each case to the intensity of the sum of N signals, and an identification is made of that reception antenna (3) from which the signal has come whose blanking from the signal sum brings about the greatest intensity loss (D1 through D5). Lastly, the signal having the relevant individual identifier is allocated to that reception antenna (3) and to the wheel (R3) allocated to it.
Inventors
- 👤 Norbert Normann
- 👤 Gunter Lothar Schulze
- 👤 Ralf Kessler
- 👤 Andreas Kuhnle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:09
CPC Classifications
B; B60; B60C; B60C23/00; B60C23/02; B60C23/04; B60C23/0408; B60C23/0415; B60C23/0416; B60C23/0422; B60C23/0433; B60C23/0435; B60C23/0444
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
233 words
A method for processing signals of a tire pressure monitoring system on vehicles on each of whose N wheels (R1 through R5) a transmitter is mounted and a reception antenna (1 through 5) which is connected to the input of a common receiver (8) is allocated to each transmitter in its vicinity, the transmitters transmitting, at time intervals, data telegrams which contain an individual identifier and a data portion following the latter, wherein the signals received simultaneously from the reception antennas (1 through 5) and having the same identifier are conveyed in summed fashion to the receiver (8), alternately from all N reception antennas (1 through 5) and from N-1 reception antennas (1, 2, 4, 5), such that the one reception antenna (3) whose signal is blanked out of sum of the signals is selected by cyclical transposition from the total number N of reception antennas (1 through 5); the intensity of the summed signals is determined, the intensity of the sums of N-1 signals is compared in each case to the intensity of the sum of N signals, and an identification is made of that reception antenna (3) from which the signal has come whose blanking from the signal sum brings about the greatest intensity loss (D1 through D5); and the signal having the relevant individual identifier is allocated to that reception antenna (3) and to the wheel (R3) allocated to it.
Claim 2
Independent Claim
233 words
A method for processing signals of a tire pressure monitoring system on vehicles on each of whose N wheels (R1 through R5) a transmitter is mounted and a reception antenna (1 through 5) which is connected to the input of a common receiver (8) is allocated to each transmitter in its vicinity, the transmitters transmitting, at time intervals, data telegrams which contain an individual identifier and a data portion following the latter, wherein the signals received simultaneously from the reception antennas (1 through 5) and having the same identifier are conveyed in summed fashion to the receiver (8), alternately from all N reception antennas (1 through 5) and from N-1 reception antennas (1, 2, 4, 5), such that the one reception antenna (3) whose signal is blanked out of sum of the signals is selected by cyclical transposition from the total number N of reception antennas (1 through 5); the intensity of the summed signals is determined, the intensity of the sums of N-1 signals is compared in each case to the intensity of the sum of N signals, and an identification is made of that reception antenna (3) from which the signal has come whose blanking from the signal sum brings about the greatest intensity loss (D1 through D5); and the signal having the relevant individual identifier is allocated to that reception antenna (3) and to the wheel (R3) allocated to it.
Claim 3
Dependent Claim
65 words
The method as defined in claim 1, wherein the intensity of the complete signals is determined as long as the summed signal remains strong enough, despite the blanking of the signal coming from a reception antenna (3), that the input field strength necessary for the selected receiver (8) is still attained with the summed signal of the remaining N-1 reception antennas (1, 2, 4, 5).
Claim 4
Dependent Claim
46 words
The method as defined in claim 1 wherein the signals which are blanked out in cyclical interchange are blanked out only after the identifier has been received, and the intensities of the summed signals are accordingly determined only from the remaining signal portion which follows thereafter.
Claim 5
Dependent Claim
44 words
The method as defined in claim 1, wherein the intensity of the sum of N-1 signals is compared to the mean of the intensities of the sum of the group of the previous N signals and of the group of the subsequent N signals.
Claim 6
Dependent Claim
54 words
The method as defined in claim 1, wherein the transmitters send their data telegrams with a period T S ; and the cycle of blanking one signal out from the sum of the simultaneously occurring signals is repeated with a period T E which is large by comparison with the period T S .
Claim 7
Dependent Claim
32 words
The method as defined in claim 1, wherein a signal with a specific identifier is allocated to a specific wheel (R3) only if the greatest intensity difference (D3) exceeds a minimum value.
Claim 8
Dependent Claim
46 words
The method as defined in claim 2, wherein the signals which are blanked out in cyclical interchange are blanked out only after the identifier has been received, and the intensities of the summed signals are accordingly determined only form the remaining signal portion which follows thereafter.
Claim 9
Dependent Claim
44 words
The method as defined in claim 2, wherein the intensity of the sum of N-1 signals is compared to the mean of the intensities of the sum of the group of the previous N signals and of the group of the subsequent N signals.
Claim 10
Dependent Claim
54 words
The method as defined in claim 2, wherein the transmitters send their data telegrams with a period T S : and the cycle of blanking one signal out from the sum of the simultaneously occurring signals is repeated with a period T E which is large by comparison with the period T S .
Claim 11
Dependent Claim
30 words
The method as defined in claim 2, wherein a signal with a specific identifier is allocated to a specific wheel only if the greatest intensity difference exceeds a minimum value.
Claim 12
Dependent Claim
47 words
The method as defined in claim 3, wherein the intensity of the sum of N-1 signals is compared to the mean of the mean of the intensities of the sum of the group of the previous N signals and of the group of the subsequent N signals.
Claim 13
Dependent Claim
54 words
The method as defined in claim 3, wherein the transmitters send their data telegrams with a period T S ; and the cycle of blanking one signal out from the sum of the simultaneously occurring signals is repeated with a period T E which is large by comparison with the period T S .
Claim 14
Dependent Claim
144 words
A circuit arrangement for carrying out the method as defined in claim 1 in a system for tire pressure monitoring on vehicles, having wheel electronic packages, mounted on the wheels (R1 through R5), each with a pressure sensor, a circuit for processing the pressure reading supplied thereby, a battery, and a transmitter; N reception antennas (1 through 5) mounted on the body in the vicinity of the wheels (R1 through R5); and a control device (6), mounted in the body, to which all the reception antennas (1 through 5) are connected, wherein the control device (6) contains a combination of a receiver (8) and a multiplexer (7), upstream therefrom, which has a separate input for each of the N reception antennas (1 through 5) and in which the N inputs can be deactivated individually and switched to a common input of the receiver (8).
Claim 15
Dependent Claim
19 words
The circuit arrangement as defined in claim 13, wherein the inputs of the multiplexer (7) can be deactivated cyclically.
Claim 16
Dependent Claim
23 words
The circuit arrangement as defined in claim 13, wherein alternately one input and then no input of the multiplexer (7) can be deactivated.
Claim 17
Dependent Claim
28 words
The circuit arrangement as defined in claim 13, wherein the receiver (8) triggers the multiplexer (7) with a pulse derived from the trailing edge of the received signals.
Claim 18
Dependent Claim
22 words
The circuit arrangement as defined in claim 14, wherein alternately one input and then no input of the multiplexer can be deachivated.
Claim 19
Dependent Claim
109 words
A circuit arrangement for carrying out the method as defined claim 2, in a system for tire pressure monitoring on vehicles, having wheel electronic packages, mounted on the wheels, each with a pressure sensor, a circuit for processing the pressure reading supplied thereby, a battery, and a transmitter; N reception antennas mounted in the body, to which all the reception antennas are connected, wherein the control device contains a combination of a receiver and a multiplexer, upstream therefrom, which has a separate input for each of the N reception antennas and in which the N inputs can be deactivated individually and switched to a common input of the receiver.
Claim 20
Dependent Claim
22 words
The circuit arrangement as defined in claim 14, wherein alternately one input and then no input of the multiplexer can be deactivated.
Claim 21
Dependent Claim
26 words
The circuit arrangement as defined in claim 14, wherein the receiver triggers the multiplexer with a pulse derived from the trailing edge of the received signals.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-03-07 | 2003-09-06 | 2004-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-03-07 | 2007-09-06 | 2008-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-03-07 | 2011-09-06 | 2012-03-07 | $7700.00 | Window Closed / Lapsed |