Ενδειξη πιεσης ελαστικων

[s42performance]

Tyre defect indicator (RPA) E46, DSC MK60

The tyre defect indicator RPA is designed to monitor the tyre status while driving. For this purpose, the ABS speed sensors determine the speed of the four wheels independent of each other. A calculation logic stage implemented in the DSC control unit evaluates the received data and makes the corresponding information available to the driver as required thus informing the driver of a possible tyre defect.
1. System structure

The tyre defect indicator consists of the following components:

* 4 ABS speed sensors (already fitted)
* 1 DSC control unit (already fitted)
* 1 Wiring harness
* 1 calibration button (RPA button)
* 1 DME control unit (already fitted)
* 1 Transverse acceleration sensor (already fitted)
* 1 Yaw rate sensor (already fitted)
* 1 Signal lamp

2. Functions

The main function of the system is to monitor the tyre pressure while driving. The tyre pressure to be monitored is determined by the driver. With the aid of the reset button the driver instructs the system to adopt the current set of wheels with the selected tyre pressure as the set reference.

If the speed of a wheel changes as the result of losing air pressure, the control unit sends a corresponding signal dependent on the pressure deviation to the driver information system (warning lamp and gong).
2.1 System statuses

The RPA system differentiates between 5 operating statuses:
2.1.1 ”Active” status

After ”switching on” the ignition and after a self-test, the RPA assumes the ”active” status. If the tyre pressure corresponds to the pressure set by the driver minus a permissible tolerance, no message is issued to the driver.
2.1.2 ”Warning” status

The signal lamp lights up red and an acoustic signal sounds. The state ”Warning” (pressure drop of approx 30%) indicates that road safety is no longer assured. In the state ”Warning”, it is not possible to run the learning procedure. Pressing the RPA button for 4 seconds resets the RPA to the ”Active” state.
2.1.3 ”Inactive” status

The warning lamp lights yellow. In the ”Inactive” state, all RPA functions are shut down.
2.1.4 ”Fault” status

The warning lamp lights yellow. The ”Fault” state is created by a sensor fault detected by the DSC control unit or RPA button actuation of more than 120 seconds. With ”Ignition On” as well as on starting diagnosis, the RPA becomes active again and then again reports a fault in the case of a sensor fault or a timeout of the RPA button signal.
2.1.5. ”Learning” (Standardisation) status

The learning status is initiated by pressing the RPA button for 4 seconds. The warning lamp lights up for 12 seconds to confirm the start. The learning procedure must be run every time the tyre inflation pressure is corrected or after a tyre change. The driver is responsible for ensuring the tyre inflation pressure is set correctly. The system cannot carry out a plausibility check. The system is able to detect a reduction in tyre pressure of approx 50% of the cold air pressure after a minimum of 10 minutes. As the learning procedure progresses, the pressure difference detected as a tyre failure reduces to approx. 30%.
2.1.6 New status

The warning lamp flashes yellow. In the case of new DSC control units, all RPA functions are disabled. The RPA system is activated by initiating the learning procedure.
3. Diagnosis

The sensors used by the RPA system are already monitored by the ABS and DSC. The RPA will also signal a fault if the ABS and DSC detect a fault.

The following event triggers an additional entry in the fault code memory:

* Pressing the RPA button for longer than 120 seconds.

[s42performance]

Tyre Defect Indicator (RPA)

The Tyre Defect Indicator RPA is designed to monitor the tyre status while driving. To achieve this, the speeds of the four wheels are determined by the wheel-speed sensors. A calculation logic stage implemented in the DSC control unit evaluates the received data and makes the corresponding information available to the driver as required, thus informing the driver of a possible tyre defect.
1. System structure

The Flat Tyre Monitor function is integrated in the DSC control unit.

E83 / E53 as of 03/2004: The standardisation takes place by means of a button.

E60: The standardisation takes place via iDrive.


2. Functions

The main function of the system is monitoring the tyre inflation pressure while the vehicle is being driven. The RPA button or iDrive is used to adopt the current tyre inflation pressure for the current wheel set as setpoint value. This means it is necessary to set the correct tyre inflation pressure prior to ”standardisation”.

Loss of inflation pressure changes the speed of the corresponding wheel. Depending on the pressure deviation, the control unit issues corresponding signals to the driver information system (indicator lamp and gong).
2.1. System statuses


2.1.1 ”Active” status

After ”ignition on”, the RPA runs a self-test and is then in the state ”active”. The system monitors the tyre inflation pressure.
2.1.2 ”Warning” status

The indicator lamp lights up in red and an acoustic signal sounds (ECE). The indicator lamp lights up in yellow (US version). The state ”warning” (pressure drop of approx. 30 %) means that road safety is no longer ensures. Pressing the RPA button for 4 seconds or using the iDrive, resets the RPA to the state ”active”.
2.1.3. State ”failed”

The indicator lamp lights up in yellow (E53, E83). CC message ”Tyre Defect Indicator” (E60). The RPA is not functional; no warning can be issued.
2.1.4. Status ”adaptation process” (standardisation)

The adaptation process is initiated after the RPA button has been pressed for 4 seconds. To confirm the start, the indicator lamp lights up in yellow for 4 seconds (E83, E53). On the E60, the adaptation process is initiated via iDrive. The adaptation process must be run after every correction of the tyre inflation pressure or after a tyre change. The responsibility correct set tire inflation pressure lies with the driver. The system is able to detect a flat of approx. 50 % of the cold inflation pressure after 10 minutes at the earliest. As the adaptation process advances, the differential pressure detected as a flat is reduced to around 30 %.
Important

A standardisation must always be carried out if the cold inflation pressure, the wheel position or the wheel set is changed.

[s42performance]

Αυτες ειναι οι διαφορες μεταξι των 2 συστηματων μην κρινουμε τα πραγματα μονο απο το αποτελεσμα η με το τι θα θελαμε εμεις ....

[Spiros335i]

Αυτες ειναι οι διαφορες μεταξι των 2 συστηματων μην κρινουμε τα πραγματα μονο απο το αποτελεσμα η με το τι θα θελαμε εμεις ....

Τα δεχομαι ολα αυτα που λες ,αλλα εγω απο δω και περα δεν θα δινω σημασια στο συστημα αυτο!Σαν να μην υπαρχει στο αυτοκινητο!

Θα φροντιζω να τσεκαρω πιο συχνα και ολα καλα!

Σε περιπτωση παλι που αναψει φυσικα και θα γινει ελεγχος! Αυτα!

[Nino]

Tyre defect indicator (RPA) E46, DSC MK60

The tyre defect indicator RPA is designed to monitor the tyre status while driving. For this purpose, the ABS speed sensors determine the speed of the four wheels independent of each other. A calculation logic stage implemented in the DSC control unit evaluates the received data and makes the corresponding information available to the driver as required thus informing the driver of a possible tyre defect.
1. System structure

The tyre defect indicator consists of the following components:

* 4 ABS speed sensors (already fitted)
* 1 DSC control unit (already fitted)
* 1 Wiring harness
* 1 calibration button (RPA button)
* 1 DME control unit (already fitted)
* 1 Transverse acceleration sensor (already fitted)
* 1 Yaw rate sensor (already fitted)
* 1 Signal lamp

2. Functions

The main function of the system is to monitor the tyre pressure while driving. The tyre pressure to be monitored is determined by the driver. With the aid of the reset button the driver instructs the system to adopt the current set of wheels with the selected tyre pressure as the set reference.

If the speed of a wheel changes as the result of losing air pressure, the control unit sends a corresponding signal dependent on the pressure deviation to the driver information system (warning lamp and gong).
2.1 System statuses

The RPA system differentiates between 5 operating statuses:
2.1.1 ”Active” status

After ”switching on” the ignition and after a self-test, the RPA assumes the ”active” status. If the tyre pressure corresponds to the pressure set by the driver minus a permissible tolerance, no message is issued to the driver.
2.1.2 ”Warning” status

The signal lamp lights up red and an acoustic signal sounds. The state ”Warning” (pressure drop of approx 30%) indicates that road safety is no longer assured. In the state ”Warning”, it is not possible to run the learning procedure. Pressing the RPA button for 4 seconds resets the RPA to the ”Active” state.
2.1.3 ”Inactive” status

The warning lamp lights yellow. In the ”Inactive” state, all RPA functions are shut down.
2.1.4 ”Fault” status

The warning lamp lights yellow. The ”Fault” state is created by a sensor fault detected by the DSC control unit or RPA button actuation of more than 120 seconds. With ”Ignition On” as well as on starting diagnosis, the RPA becomes active again and then again reports a fault in the case of a sensor fault or a timeout of the RPA button signal.
2.1.5. ”Learning” (Standardisation) status

The learning status is initiated by pressing the RPA button for 4 seconds. The warning lamp lights up for 12 seconds to confirm the start. The learning procedure must be run every time the tyre inflation pressure is corrected or after a tyre change. The driver is responsible for ensuring the tyre inflation pressure is set correctly. The system cannot carry out a plausibility check. The system is able to detect a reduction in tyre pressure of approx 50% of the cold air pressure after a minimum of 10 minutes. As the learning procedure progresses, the pressure difference detected as a tyre failure reduces to approx. 30%.
2.1.6 New status

The warning lamp flashes yellow. In the case of new DSC control units, all RPA functions are disabled. The RPA system is activated by initiating the learning procedure.
3. Diagnosis

The sensors used by the RPA system are already monitored by the ABS and DSC. The RPA will also signal a fault if the ABS and DSC detect a fault.

The following event triggers an additional entry in the fault code memory:

* Pressing the RPA button for longer than 120 seconds.

Tyre Defect Indicator (RPA)

The Tyre Defect Indicator RPA is designed to monitor the tyre status while driving. To achieve this, the speeds of the four wheels are determined by the wheel-speed sensors. A calculation logic stage implemented in the DSC control unit evaluates the received data and makes the corresponding information available to the driver as required, thus informing the driver of a possible tyre defect.
1. System structure

The Flat Tyre Monitor function is integrated in the DSC control unit.

E83 / E53 as of 03/2004: The standardisation takes place by means of a button.

E60: The standardisation takes place via iDrive.


2. Functions

The main function of the system is monitoring the tyre inflation pressure while the vehicle is being driven. The RPA button or iDrive is used to adopt the current tyre inflation pressure for the current wheel set as setpoint value. This means it is necessary to set the correct tyre inflation pressure prior to ”standardisation”.

Loss of inflation pressure changes the speed of the corresponding wheel. Depending on the pressure deviation, the control unit issues corresponding signals to the driver information system (indicator lamp and gong).
2.1. System statuses


2.1.1 ”Active” status

After ”ignition on”, the RPA runs a self-test and is then in the state ”active”. The system monitors the tyre inflation pressure.
2.1.2 ”Warning” status

The indicator lamp lights up in red and an acoustic signal sounds (ECE). The indicator lamp lights up in yellow (US version). The state ”warning” (pressure drop of approx. 30 %) means that road safety is no longer ensures. Pressing the RPA button for 4 seconds or using the iDrive, resets the RPA to the state ”active”.
2.1.3. State ”failed”

The indicator lamp lights up in yellow (E53, E83). CC message ”Tyre Defect Indicator” (E60). The RPA is not functional; no warning can be issued.
2.1.4. Status ”adaptation process” (standardisation)

The adaptation process is initiated after the RPA button has been pressed for 4 seconds. To confirm the start, the indicator lamp lights up in yellow for 4 seconds (E83, E53). On the E60, the adaptation process is initiated via iDrive. The adaptation process must be run after every correction of the tyre inflation pressure or after a tyre change. The responsibility correct set tire inflation pressure lies with the driver. The system is able to detect a flat of approx. 50 % of the cold inflation pressure after 10 minutes at the earliest. As the adaptation process advances, the differential pressure detected as a flat is reduced to around 30 %.
Important

A standardisation must always be carried out if the cold inflation pressure, the wheel position or the wheel set is changed.

Αυτες ειναι οι διαφορες μεταξι των 2 συστηματων μην κρινουμε τα πραγματα μονο απο το αποτελεσμα η με το τι θα θελαμε εμεις ....

Tην αρχικοποιηση του συστηματος περιγραφεις και τον τροπο που λειτουργει το συστημα,κοκκινη ενδειξη προβλημα σε τροχο και κιτρινη ενδειξη δυσλειτουργια του συστηματος... ολα αυτα ειναι γνωστα και μπορει να τα βρει καποιος στο manual του αυτοκινητου του!!
Εδω ομως το θεμα μας ειναι κατα ποσο ειναι αξιοπιστο και κατα ποσο λειτουργει παρα την οποια αρχικοποιηση εχει γινει?
Προσωπικα στο δικο μου και ενω σε ελεγχο της πιεσης των ελαστικων υπηρχε μεγαλη διαφορα κανενα συστημα run flat RPA δεν το αναγνωρισε και αυτο πανω απο δυο φορες.
Η ουσια ειναι οτι κανενα ηλεκτρονικο ισως δεν θα πρεπει να αντικαθιστα τους ελεγχους που οφειλουμε να κανουμε ως οδηγοι στα αυτοκινητα μας ειτε αυτοι ειναι σε αερα,λαδια,νερα κλπ.

[Vasilis]

https://www.tiremoni.gr/order.asp


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