DE102018202228A1 - A method of operating a motor vehicle having at least one wheel speed sensor assembly - Google Patents

Abstract

The invention relates to a method for operating a motor vehicle (2) having a wheel speed sensor assembly (4) with at least one wheel speed sensor (6), a temperature sensor (8) and a humidity sensor (10), comprising the steps:
Detecting a temperature measurement value (Twss) representative of a component life-relevant temperature with the temperature sensor (8),
Detecting a moisture measurement value (Hwss) representative of a building life-relevant humidity with the humidity sensor (10),
Comparing the temperature measurement value (Twss) with a temperature limit value (TG),
- comparing the moisture reading (Hwss) with a moisture limit (HG), and
Generating a warning signal (WS) if the temperature measurement value (Twss) is greater than the temperature limit value (TG) and / or the moisture measurement value (Hwss) is greater than the moisture limit value (HG).

Description

The invention relates to a method for operating a motor vehicle with a Raddrehzahlsensorbaugrouppe. Furthermore, the invention relates to a computer program product, a control unit, a Raddrehzahlsensorbaugruppe, a motor vehicle with such a control unit and / or such Raddrehzahlsensorbaugruppe and a measurement data set.

Antilock braking systems (ABS) as well as driving dynamics regulations (ESP) are now standard equipment of motor vehicles, such. Automobiles. The anti-lock braking system prevents blockage of the wheels of the motor vehicle during full braking, while the driving dynamics control counteracts a breaking of the motor vehicle by deliberately braking individual wheels.

For this purpose, a speed sensor in the form of an induction transmitter or Hall sensor is provided on each wheel. The speed sensors are typically mounted on drum brakes or stub axles near disc brakes of a motor vehicle which are parts of a Radach subassembly. Because of this location of installation, the speed sensors are at high temperatures, e.g. due to heavy braking, rain, snow and / or tropical temperatures.

Furthermore, depending on geography, automobiles are exposed to various tropical and changing humidities.

If a housing of the speed sensor is defective, moisture can get into the housing between the IC terminals or leadframe, resulting in the risk of electrical short circuits with subsequent sensor failure. This results in a failure of an ABS / ESP system. Moisture-related failures increase with humidity, while higher temperatures lead to expansion of plastic material from which the housing is made. Such expansion facilitates the ingress of atmospheric moisture.

If only one such wheel speed sensor fails, the ABS / ESP system continues to operate with reduced functionality. However, if more than one wheel speed sensor fails, safety is at risk.

Drivers of motor vehicles, however, are not forewarned that the speed sensors could fail due to high humidity and / or temperatures.

It is therefore an object of the invention to show ways how drivers of motor vehicles can be forewarned accordingly.

• - Erfassen eines Temperaturmesswertes repräsentativ für eine bauteillebensdauerrelevante Temperatur mit dem Temperatursensor,
• - Erfassen eines Feuchtemesswertes repräsentativ für eine bauteillebensdauerrelevante Luftfeuchte mit dem Feuchtesensor,
• - Vergleichen des Temperaturmesswertes mit einem Temperaturgrenzwert,
• - Vergleichen des Feuchtemesswertes mit einem Feuchtegrenzwert, und
• - Erzeugen eines Warnsignals, wenn der Temperaturmesswert größer als der Temperaturgrenzwert und/oder der Feuchtemesswert größer als der Feuchtegrenzwert ist.

The object of the invention is achieved by a method for operating a motor vehicle having a wheel speed sensor assembly with at least one wheel speed sensor, a temperature sensor and a humidity sensor, with the following steps:

• Detecting a temperature measurement value representative of a building life-relevant temperature with the temperature sensor,
• Detecting a moisture measurement value representative of a building life-relevant humidity with the humidity sensor,
• Comparing the temperature measurement value with a temperature limit value,
• - comparing the moisture reading with a humidity limit, and
• Generating a warning signal if the temperature reading is greater than the temperature limit and / or the moisture reading is greater than the humidity limit.

Thus, it is detected when the wheel speed sensor is exposed to temperatures and humidities above specified specifications and therefore there is a risk of damage. For example, For example, a specification may specify that the wheel speed sensor should withstand temperatures up to 85 ° C and humidities up to 85%. It can then be provided that 80 ° C. is selected as the temperature limit value and 80% as the moisture limit value. Thus, a safe distance to the values according to the specification is given. The warning signal can activate an activation of a warning lamp in the dashboard of the motor vehicle to inform a driver of the motor vehicle that the operating conditions for the wheel speed sensors are to be regarded as borderline with respect to the specification and is expected to be a failure. Thus, a driver of a motor vehicle can be forewarned that the wheel speed sensors could fail due to high humidity and / or temperatures.

• - Erfassen einer Zeitdauer, während der das Warnsignal vorliegt,
• - Vergleichen der Zeitdauer mit einem Zeitschwellwert, und
• - dauerhaftes Bereitstellen des Warnsignals, wenn die Zeitdauer größer als der Zeitschwellwert ist.

ausgeführt. Es läuft also eine Zeiterfassung immer dann, wenn das Warnsignal vorliegt, d.h. einer oder beide Grenzwerte überschritten werden. Wenn der Zeitschwellwert überschritten wird wird das Warnsignal dauerhaft bereitgestellt, d.h. unabhängig davon ob einer oder beide Grenzwerte überschritten werden. So kann berücksichtigt werden, dass die Spezifikationen eine Mindestlebensdauer von z.B. 1000h vorgeben, die einen Betrieb ohne Fehlerfall bei Temperaturen bis 85°C und Luftfeuchten bis zu 85% fordern. Es wird also die Zeit erfasst, die der Raddrehzahlsensor derartigen Temperaturen und Luftfeuchten ausgesetzt ist und rechtzeitig ein Warnsignal erzeugt um einen Fahrer zu einem Werkstattbesuch aufzufordern. Es kann auch vorgesehen sein, dass es sich bei dem hier erzeugten Warnsignal um ein zweites Warnsignal handelt, das ein zweite Anzeige aktiviert, die einen Fahrer eines Kraftfahrzeugs zu einem Werkstattbesuch auffordert.According to one embodiment, further the steps

• Detecting a period of time during which the warning signal is present,
• Comparing the time duration with a time threshold, and
• - permanently providing the warning signal if the time duration is greater than the time threshold value.

executed. So there is a time tracking always when the warning signal is present, ie one or both limits are exceeded. If the time threshold is exceeded, the warning signal is permanently provided, ie regardless of whether one or both limits are exceeded. Thus, it can be taken into account that the specifications specify a minimum life of, for example, 1000h, which require operation without fault at temperatures up to 85 ° C and humidity up to 85%. It is thus recorded the time that the wheel speed sensor is exposed to such temperatures and humidities and timely generates a warning signal to summon a driver to a workshop visit. It can also be provided that the warning signal generated here is a second warning signal which activates a second display which prompts a driver of a motor vehicle for a workshop visit.

In another embodiment, the wheel speed sensor assembly provides a measurement data set having a wheel speed value, the temperature measurement, and the humidity reading. Such a measurement data set may be provided by a wheel speed sensor assembly designed as a smart sensor and may be e.g. be transmitted via a CAN bus of the motor vehicle to a control unit such as an ABS / ESP control unit. Thus, an already existing data bus of the motor vehicle can be used.

According to a further embodiment, a first level is assigned to the wheel speed value and a second level to the temperature measurement value and the moisture measurement value, the first level and the second level being different. For example, For example, the first level may be greater than the second level. By assigning to different levels, the detection and evaluation of the respective values is simplified or a redundancy is provided, the error detections of e.g. helps to prevent rotating wheels.

According to another embodiment, the measurement data set comprises a first block for the wheel speed value, a second block for the temperature measurement value and a third block for the moisture measurement value. Each of the blocks reserves a time duration of the total duration of the measurement data set for the respective value. In this way, the measured data record can be evaluated particularly easily.

According to a further embodiment, at least the temperature measurement value and the moisture measurement value are Manchester-coded. In this case, a Manchester code (also known as phase encoding (PE) or directional tact) is understood to mean a line code which receives the clock signal during the encoding. A bit sequence modulates the binary phase of a clock signal. The Manchester code thus represents a form of digital phase modulation, which is also referred to as phase shift keying. In other words, the rising or falling edges of a signal relative to the clock signal carry the information. For example, can be a falling edge for logical lowl and a rising edge for logical high according to IEEE 802.3. Alternatively, a falling edge can signal a logical high, a rising edge a signal logical low. This is also referred to as Biphase-L or Manchester-II. Another advantage is that the clock signal can be derived from the code itself. An additional clock is not needed.

Furthermore, the invention includes a computer program product, a control unit, a wheel speed sensor assembly, a motor vehicle with such a control unit and / or such a wheel speed sensor assembly and a measurement data set.

• 1 in schematischer Darstellung ein Kraftfahrzeug mit einem ABS/ESP-System.
• 2 in schematischer Darstellung Komponenten des ABS/ESP-Systems.
• 3 in schematischer Darstellung ein erstes Ausführungsbeispiel eines Messdatensatzes.
• 4 den in 3 dargestellten Messdatensatz in einer weiteren Konfiguration.
• 5 den in 3 dargestellten Messdatensatz in einer weiteren

The invention will now be explained with reference to a drawing. It shows:

• 1 a schematic representation of a motor vehicle with an ABS / ESP system.
• 2 schematic representation of components of the ABS / ESP system.
• 3 a schematic representation of a first embodiment of a measurement data set.
• 4 the in 3 shown measurement data set in another configuration.
• 5 the in 3 shown measurement data set in another

• 6 in schematischer Darstellung ein zweites Ausführungsbeispiel eines Messdatensatzes.
• 7 den in 6 dargestellten Messdatensatz in einer weiteren Konfiguration.

Configuration.

• 6 a schematic representation of a second embodiment of a measurement data set.
• 7 the in 6 shown measurement data set in another configuration.

It is going on first 1 Referenced.

Shown is a motor vehicle 2 , which is formed in the present embodiment as a car. Notwithstanding the present embodiment, the motor vehicle 2 but also a truck, a bus or a motorcycle.

The car 2 has in the present embodiment, a combined ABS / ESP system.

The ABS / ESP system is designed to block the wheels of the motor vehicle during full braking 2 and / or targeted braking of individual wheels of a breaking out of the motor vehicle 2 counteract.

Components of the ABS / ESP system will now be described with additional reference 2 explained.

Shown are a Raddrehzahlsensorbaugruppe 4 and a controller 12 like an ABS / ESP controller.

At every wheel of the motor vehicle 2 is a speed sensor assembly 4 intended. The respective speed sensor modules 4 may be on drum brakes or stub axles near disc brakes of the motor vehicle 2 be arranged.

The speed sensor assembly 4 has a wheel speed sensor 6 for detecting a rotating wheel, such as an induction or Hall sensor, a temperature sensor 8th for detecting a temperature and a humidity sensor 10 for detecting a humidity on.

For protection, the speed sensor assembly has 4 a housing 14 on, which is a plastic housing in the present embodiment. The detected temperature or component life-relevant temperature may be the temperature of the speed sensor assembly 4 , the wheel speed sensor 6 , of the housing 14 or the air temperature inside or outside the enclosure 14 be, while it is at the component lifetime relevant humidity or humidity to the proportion of water vapor in the gas mixture of the air inside or outside the housing 14 is.

The speed sensor assembly 4 is formed in the present embodiment as a smart sensor, which combines not only the actual measured variable detection and the complete signal processing and signal processing in a housing. Furthermore, the speed sensor assembly 4 in the present embodiment, for example, a CAN bus compatible interface (not shown).

Thus, the speed sensor assembly is 4 is formed in the present embodiment, measurement data set MD to generate and via a CAN bus of the motor vehicle 2 to the controller 12 transferred to.

The measurement data set MD includes in the present embodiment, a wheel speed value rwss Indicative of a wheel angular momentum or representative of a wheel speed and / or direction, a temperature reading twss representative of a component lifetime relevant temperature and a moisture reading HWSS representative of a building life-relevant humidity.

The control unit 12 is designed to measure the temperature twss with a predetermined temperature limit TG , in the present embodiment 80 ° C, and the moisture reading HWSS with a predetermined moisture limit value HG 80% in the present embodiment. Further, the controller 12 trained to a warning signal WS to produce when the temperature reading twss greater than the temperature limit TG and / or the moisture reading HWSS greater than the moisture limit value HG is.

The warning signal WS For example, a signal logic high or a CAN bus compatible signal, a display, such as a lamp in the dashboard of the motor vehicle 2 , activate and so a driver of the motor vehicle 2 inform that at least one speed sensor 6 could fail due to high humidity and / or temperatures.

Furthermore, the control unit 12 formed in the present embodiment, a period of time timer in hours during which the wheel speed sensor 6 Temperature readings twss greater than the temperature limit TG and / or humidity readings HWSS greater than the humidity limit value HG is suspended, ie during the warning signal WS is present. The control unit 12 compares the time duration timer with a predetermined time threshold TS , in the present embodiment 300h and generates the warning signal WS when the time period timer greater than the time threshold TS is. This is the warning signal WS provided even when the temperature readings twss less than or equal to the temperature limit TG and / or humidity readings HWSS less than or equal to the moisture limit value HG are.

So becomes a driver of the motor vehicle 2 informed that the wheel speed sensor 6 was exposed to critical temperature readings and humidity readings to an extent that could result in an end of its life. Thus, in this case, the warning signal WS ask a driver for a workshop visit.

For the tasks and functions described here, the speed sensor module 4 and the controller 12 Have hardware and / or software components.

It will now be under additional reference 3 the structure of the measurement data record MD explained.

The measurement data set MD has a total period of time T on, where the total period T is divided in the present embodiment, ie in three equal or long blocks B1 to B3 is divided.

Here is the first block B1 reserved for the wheel speed value rwss , the second block B2 for the temperature reading twss and the third block B3 for the moisture reading HWSS , Consequently, in the present embodiment, first, the first block B1 , then the second block B2 and finally the third block B3 transfer.

Each of the blocks B1 to B3 has a block period duration t that works for all blocks B1 to B3 is equal to or long. At every block B1 to B3 closes a separation period t / 2 on. In the present embodiment, the duration or length of the separation period t / 2 half the block period duration t , In other words, for the total period T applies: $$\text{T}=\text{t}+\text{t / 2}+\text{t}+\text{t / 2}+\text{t}+\text{t / 2}=9\text{t / 2}$$

Furthermore, the measurement data set MD in the present embodiment, a zero level P0 , a first level P1 and a second level P2 on.

The zero level P0 is assigned in the present embodiment, a current value of 7 mA, during the first level P1 a current value of 28 mA and the second level P2 a current value of 14 mA is assigned.

During the respective separation period t / 2 the signal level drops to zero level P0 from, wherein the operability is signaled by the predetermined current value of 7 mA. In other words, a current value of 0 mA is considered an error case.

If a spinning wheel has been detected, the signal level is in the first block B1 at the value of the first level P1 ,

If, however, the temperature reading twss greater than the temperature limit TG is the signal level in the second block B2 at the value of the second level P2 ,

If, however, the moisture reading HWSS greater than the moisture limit value HG is the signal level in the third block B3 at the value of the second level P2 ,

By choosing different levels especially error detections of a rotating wheel can be avoided.

It is now additionally on 4 Referenced.

4 shows the measurement data set MD when a spinning wheel was detected, but the temperature reading twss equal to or less than the temperature limit TG and the moisture reading HWSS equal to or less than the moisture limit value HG is.

Accordingly, the signal level is in the first block B1 at the first level P0 while in the second block B2 and in the third block B3 the signal level to the zero level P0 lies.

It is now additionally on 5 Referenced.

5 shows the measurement data set MD if no rotating wheel was detected and the temperature reading twss equal to or less than the temperature limit TG and the moisture reading HWSS equal to or less than the moisture limit value HG is.

Accordingly, the signal level is in the first block B1 and in the second block B2 as well as third block B3 at the zero level P0 ,

It is now under additional reference to 6 A second embodiment of the data sets MD explained.

The measurement data set MD according to the second embodiment differs from the measurement data set MD according to the first embodiment in that the temperature measured value twss and the moisture reading HWSS Manchester encoded, eg according to IEEE802.3.

Thus, the first block remains B1 unchanged, ie when a rotating wheel has been detected, the signal level is in the first block B1 at the value of the first level P1 ,

On the other hand stays in the second block B2 and in the third block B3 the signal level is indeed at the value of the second level P2 , but each for a shortened period of time t / 2 , Rather, the portion of the signal level becomes the value of the second level P2 arranged along the time axis such that a respective falling edge in the middle of the second block B2 or third block B3 is (approximately at t + t / 2 + t / 2 in the second block B2 and at t + t / 2 + t / 2 + t / 2 + t / 2 + t / 2 in the third block B3 ).

In other words, 6 shows the measurement data set MD if a rotating wheel was detected, the temperature reading twss smaller than that temperature limit TG and the moisture reading HWSS less than the humidity limit HG is.

7 on the other hand shows the measured data record MD if a rotating wheel was detected, the temperature reading twss equal to or greater than the temperature limit TG and the moisture reading HWSS equal to or greater than the moisture limit value HG is.

Thus, the first block B1 unchanged, while the portion of the signal level at which the value of the second level P2 is arranged so along the time axis that a respective rising edge in the middle of the second block B2 or third block B3 is (approximately at t + t / 2 + t / 2 in the second block B2 and at t + t / 2 + t / 2 + t / 2 + t / 2 + t / 2 in the third block B3 ).

During operation, the wheel speed sensor assembly detects 4 with the wheel speed sensor, a rotating wheel, with the temperature sensor 8th the temperature reading twss and with the humidity sensor 10 the moisture reading HWSS ,

Then create the wheel speed sensor assembly 4 a measurement record MD with a wheel speed value rwss for the spinning wheel, the temperature reading twss and the moisture reading HWSS ,

This is - as already described - the wheel speed value rwss the first level P1 and the temperature reading twss and the moisture reading HWSS the second level P2 assigned, the first level P1 greater than the second level P2 is. The measurement data set generated in this way MD indicates - as already described - the first block B1 for the wheel speed value rwss , the second block B2 for the temperature reading twss and a third block B3 for the moisture reading HWSS on.

Optionally, it can be provided that at least the temperature measured value twss and the moisture reading HWSS as already described are Manchester encoded.

The measurement data set MD is then via the CAN bus of the motor vehicle 2 to the controller 12 transfer. The control unit 12 extracted from the measurement data set MD the wheel speed value rwss , the temperature reading twss and the moisture reading HWSS , Furthermore, the controller compares 12 the temperature reading twss with the temperature limit TG and the moisture reading HWSS with a humidity limit HG and generates the warning signal WS when the temperature reading twss greater than the temperature limit TG and / or the moisture reading HWSS greater than the moisture limit value HG is. The warning signal WS may be an activation of a warning lamp in the dashboard of the motor vehicle 2 trigger.

In addition, the controller detects 12 a period of time timer while the wheel speed sensor 6 Temperature readings twss greater than the temperature limit TG and / or humidity readings HWSS greater than the humidity limit value HG is suspended, ie during the warning signal WS is present. The duration timer becomes with the time threshold TS compared. The warning signal WS is also generated when the time period timer greater than the time threshold TS is. Again, the warning signal WS to an activation of a warning lamp in the dashboard of the motor vehicle 2 to lead. So it is the time recorded, the wheel speed sensor 6 such temperatures and humidities is exposed and timely warning WS generated to summon a driver to a workshop visit. This is the warning signal WS permanently provided, ie even if the temperature readings twss less than or equal to the temperature limit TG and / or humidity readings HWSS less than or equal to the moisture limit value HG are.

So can a driver of a motor vehicle 2 be forewarned accordingly.

The order of the individual steps of the method according to the present embodiment may also be different. For example, For example, the order of individual steps or groups of steps may be reversed, or multiple steps or groups of steps may be performed in parallel or simultaneously.

LIST OF REFERENCE NUMBERS

2

motor vehicle

4

Raddrehzahlsensorbaugruppe

6

wheel speed sensor

8th

temperature sensor

10

humidity sensor

12

control unit

14

casing

B1

block

B2

block

B3

block

HG

moisture limit

HWSS

Humidity measurement

MD

Measurement dataset

P0

zero level

P1

level

P2

level

rwss

wheel speed

t

Block period

t / 2

Release time

T

Total period

TG

temperature limit

timer

time

TS

time threshold

twss

Temperature reading

WS

warning

Claims (22)

Method for operating a motor vehicle (2) having a wheel speed sensor assembly (4) with at least one wheel speed sensor (6), a temperature sensor (8) and a humidity sensor (10), comprising the steps: Detecting a temperature measurement value (Twss) representative of a component life-relevant temperature with the temperature sensor (8), Detecting a moisture measurement value (Hwss) representative of a building life-relevant humidity with the humidity sensor (10), Comparing the temperature measurement value (Twss) with a temperature limit value (TG), - comparing the moisture reading (Hwss) with a moisture limit (HG), and Generating a warning signal (WS) if the temperature measurement value (Twss) is greater than the temperature limit value (TG) and / or the moisture measurement value (Hwss) is greater than the moisture limit value (HG). Method according to Claim 1 comprising the steps of: - detecting a duration (timer) during which the warning signal (WS) is present, - comparing the time duration (timer) with a time threshold value (TS), and - permanently providing the warning signal (WS) when the time duration ( Timer) is greater than the time threshold (TS). Method according to Claim 1 or 2 wherein the wheel speed sensor assembly (4) provides a wheel speed (Rwss) measurement data set (MD) representative of a rotating wheel of the motor vehicle (2), the temperature reading (Twss), and the humidity reading (Hwss). Method according to Claim 3 wherein the wheel speed value (Rwss) is assigned a first level (P1) and the temperature reading (Twss) and the humidity reading (Hwss) a second level (P2), wherein the first level (P1) and the second level (P2) are different , Method according to Claim 3 or 4 wherein the measurement data record (MD) has a first block (B1) for the wheel speed value (Rwss), a second block (B2) for the temperature measurement value (Twss) and a third block (B3) for the moisture measurement value (Hwss). Method according to Claim 5 wherein at least the temperature reading (Twss) and the humidity reading (Hwss) are Manchester encoded. Computer program product adapted to carry out a method according to one of Claims 1 to 6 , Control unit (12), in particular ABS / EPS control unit, for a motor vehicle (2) having a wheel speed sensor assembly (4) with at least one wheel speed sensor (6), a temperature sensor (8) and a humidity sensor (10), wherein the control unit (12) adapted to detect a temperature measurement value (Twss) representative of a building life-relevant temperature with the temperature sensor (8), to detect a moisture measurement value (Hwss) representative of a building life-relevant humidity with the humidity sensor (10), the temperature measurement value (Twss) with a temperature limit value (TG) and the moisture reading (Hwss) with a moisture limit value (HG) and to generate a warning signal (WS) if the temperature reading (Twss) is greater than the temperature limit (TG) and / or the moisture reading (Hwss) greater than the humidity limit (HG) is. Control unit (12) after Claim 8 wherein the control unit (12) is adapted to detect a time duration (timer) during which the warning signal (WS) is present, to compare the time duration (timer) with a time threshold value (TS) and to provide the warning signal (WS) permanently if the time (timer) is greater than the time threshold (TS). Control unit (12) after Claim 8 or 9 wherein the control unit (12) is adapted to read in and evaluate a measurement data set (MD) with a wheel speed value (Rwss) representative of a rotating wheel of the motor vehicle (2), the temperature measurement value (Twss) and the moisture measurement value (Hwss). Control unit (12) after Claim 10 in which the wheel speed value (Rwss) is assigned a first level (P1) and the temperature measurement value (Twss) and the moisture measurement value (Hwss) a second level (P2), the first level (P1) and the second level (P2) being different , Control unit (12) after Claim 10 or 11 , wherein the measurement data record (MD) has a first block (B1) for the wheel speed value (Rwss), a second temperature measuring value block (B2) (B2ss) and a third humidity measuring value block (B3) (Hwss). Control unit (12) after Claim 12 wherein the control unit (12) is designed to read in and evaluate at least one Manchester-coded temperature measurement value (Twss) and moisture measurement value (Hwss). A wheel speed sensor assembly (4) comprising a wheel speed sensor (6), a temperature sensor (8), and a humidity sensor (10), the wheel speed sensor assembly (4) configured to provide a wheel data (Rwss) measurement data set (Rwss) representative of a rotating one Wheel of the motor vehicle (2), a temperature measurement value (Twss) representative of a building lifespan relevant temperature and a moisture reading (Hwss) representative of a building life relevant humidity to provide. Raddrehzahlsensorbaugrouppe (4) after Claim 14 wherein the Raddrehzahlsensorbaugrouppe (4) is adapted to the Raddrehzahlwert (Rwss) a first level (P1) and the temperature reading (Twss) and the moisture reading (Hwss) assign a second level (P2), wherein the first level (P1) and the second level (P2) are different. Raddrehzahlsensorbaugrouppe (4) after Claim 14 or 15 wherein the wheel speed sensor assembly (4) is adapted to provide a measurement data set (MD) comprising a first block (B1) for the wheel speed value (Rwss), a second block (B2) for the temperature measurement (Twss) and a third block (B3 ) for the moisture reading (Hwss). Raddrehzahlsensorbaugrouppe (4) after Claim 16 wherein the wheel speed sensor assembly (4) is adapted to provide at least one Manchester coded temperature reading (Twss) and humidity reading (Hwss). Motor vehicle (2) with a control unit (12) according to one of Claims 8 to 13 and / or a Raddrehzahlsensorbaugrouppe (4) according to one of Claims 14 to 17 , A measurement data set (MD) having a wheel speed value (Rwss) representative of a rotating wheel of the motor vehicle (2), a temperature reading (Twss) representative of a component lifetime relevant temperature and a moisture reading (Hwss) representative of a building life-relevant humidity. Measurement data record (MD) after Claim 19 in which the wheel speed value (Rwss) is assigned a first level (P1) and the temperature measurement value (Twss) and the moisture measurement value (Hwss) a second level (P2), wherein the first level (P1) and the second level (P2) are different , Measurement data record (MD) after Claim 19 or 20 wherein the measurement data record (MD) has a first block (B1) for the wheel speed value (Rwss), a second block (B2) for the temperature measurement value (Twss) and a third block (B3) for the moisture measurement value (Hwss). Measurement data record (MD) after Claim 21 wherein the measurement data set (MD) has an at least Manchester-coded temperature measurement value (Twss) and the moisture measurement value (Hwss).

Images