CA2200647A1 - Heat sensor for tractor trailer axle - Google Patents
Heat sensor for tractor trailer axleInfo
- Publication number
- CA2200647A1 CA2200647A1 CA002200647A CA2200647A CA2200647A1 CA 2200647 A1 CA2200647 A1 CA 2200647A1 CA 002200647 A CA002200647 A CA 002200647A CA 2200647 A CA2200647 A CA 2200647A CA 2200647 A1 CA2200647 A1 CA 2200647A1
- Authority
- CA
- Canada
- Prior art keywords
- bearing
- temperature
- axle
- bearing region
- spindle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/04—Thermometers specially adapted for specific purposes for measuring temperature of moving solid bodies
- G01K13/08—Thermometers specially adapted for specific purposes for measuring temperature of moving solid bodies in rotary movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/17—Using electrical or electronic regulation means to control braking
- B60T8/171—Detecting parameters used in the regulation; Measuring values used in the regulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
- F16C19/525—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to temperature and heat, e.g. insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2233/00—Monitoring condition, e.g. temperature, load, vibration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2326/00—Articles relating to transporting
- F16C2326/01—Parts of vehicles in general
- F16C2326/02—Wheel hubs or castors
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transportation (AREA)
- Rolling Contact Bearings (AREA)
Abstract
A method and apparatus to monitor the temperature of a bearing region of a trailer axle-spindle about which a wheel hub and drum assembly (commonly known as tractor tires) rotating so that the wheels thereof traverse the roadway over which the trailer is pulled.
In the bearing region bounded between the hub drum assembly and the axle-spindle, there is provided a thermal sensor which is in thermal contact with the bearing region and the sensor is electrically connected to an indicator or monitoring means, preferably located in front of a driver driving the lorry pulling the trailer. When the temperature of the bearing region exceeds a predetermined threshold temperature, the indicator advises the driver that this threshold temperature has been exceeded and the driver can then pull the rig or lorry off the road to let the bearing region cool and then drive the rig to a convenient place for servicing.
In the bearing region bounded between the hub drum assembly and the axle-spindle, there is provided a thermal sensor which is in thermal contact with the bearing region and the sensor is electrically connected to an indicator or monitoring means, preferably located in front of a driver driving the lorry pulling the trailer. When the temperature of the bearing region exceeds a predetermined threshold temperature, the indicator advises the driver that this threshold temperature has been exceeded and the driver can then pull the rig or lorry off the road to let the bearing region cool and then drive the rig to a convenient place for servicing.
Description
- ~Où647 .
llEAT SENSOR FOR TRACTOR TRAILER AXLE
This invention relates to a tractor trailer axle heat sensor adapted to sense the temperature at a rotating bearing interface disposed between a trailer axle spindle and a hub-drum assembly which carries tire rims and tires.
BACKGROUND TO TIIE INVENTION
In lorries; or, large tractor trailers commonly used in North America, the trailers or semi-trailers generally use tandem double wheels on either side, at the rear; sometimes also in the centre.
Over the past short while wi~h the increase of cargo loads carried by such trailers during transit across the highway network throughout North America and particularly in the Province of Ontario, Canada, many accidents have occurred due to the fact that the drum-hub assembly flies off the trailer axle spindle due to fatigue of the studs or nuts holding the hub-drum Z0 assembly to the axle spindle. Severe damages to other vehicles occur and in some instances, even death to motorists who travel behind, in front, or along the opposite travelling lanes to the truck that is having these difficulties.
THE INVENTION
It is an object of the invention to provide a warning device, to the operator of the truck pulling a trailer, of a temperature increase in the axle spindle-bearing-hub and drum assembly interface for each wheel on the trailer. The hub-drum assembly is secured onto the axle spindle generally by a hub-drum locking assembly which threadingly engages over a threaded portion of the spindle end to hold the hub-drum sub-assembly on the spindle. A pair of annular roller bearings are provided between the hub-drum assembly and the spindle to allow free rotation of that assembly about the spindle during travel. Generally there are two bearings, an inner larger bearing and an outer smaller bearing. If either of these bearings are not .
adequately maintained, they tend to dry up and seize and the temperature of the bearing region is increased, as is the axle spindle itself and the rotational bore define~ ~y the hub-drum assembly. When the temperature at the bearing region increases beyond either the fatigue temperature of the bearing itself or, of the spindle axle, the whole hub-drum assembly dislodges and can fly off and away from the trailer. This phenomenum has been referred to in recent literature as "run-away truck wheels". When the lorry is travelling at speeds of lOOkmh or more, the momentum of such run-away truck wheels will travel great distances, sometime cross the meridian of the highway into oncoming traffic. In other instances, the retaining nuts loosen or melt off creating run-away truck wheels. Fatigue generally occurs when the temperature of the bearing interface rises above 270 F and when it reaches approximately 290 F, metal fatigue can set in to the adjoining regions of the hub-drum assembly and of the axle spindle.
It is an object of this invention to monitor the temperature at the spindle-axle/hub-drum interface and to provide the driver of the truck pulling the trailer having such sensored wheels an indication that the temperature has risen above 270 F so that the rig can be taken off the road; then servicing take place.
The invention contemplates a method of measuring the temperature at a bearing interface thermally in contact with a spindle attached to at least one end of an axle carrying with drum-hub assembly adapted for rotating on the bearing, the assembly carrying tire rim and tires by which the trailer is traversed with the ground comprising the steps of placing a thermo couple in thermal contact with the bearing, monitoring the temperature of the bearing up to a predetermined upper threshold temperature above which thermal metal fatigue can ensue and, activating a warning indicator when the threshold temperature has been reached.
Additionally, the invention contemplates a temperature responsive device adapted to monitor a threshold temperature of a bearing region disposed between an axle-s~indle and a hub and drum sub-assembly, the sub-assembly carrying about its outer perimeter tire rims adapted for engagement of tires which traverse the ground and upon which a trailer carried by the axle is traversed comprising an axle-spindle defining, on its outer perimeter, an annular bearing region, a hub and drum assembly defining an inner bore adapted to rotatingly travel within the annular bearing region, a thermal sensor thermally in contact with the bearing region and, monitorin~ means electrically attached to the thermal sensor and responsive to a threshold temperature including an indicator means therefor. Preferably, thermal sensor is located within a bore defined by the axle-spindle and co-axial with the bearing region, preferably located between the diametrical plane of the ends of the bearing region and as described in the preferred embodiment in the diametrical plane of an outer annular bearing where there are two annular bearings defining the bearing region.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will now be described by way of example and in reference to the accompanying drawings in which:
Figure 1 is cross-sectional view of a portion of an axle with spindle according to the invention;
Figure 2 is a block circuit diagramme of the electronic circuit according to the invention for measuring the temperature of each spindle axle-bearing interface.
Referring to Figure 1, (10) is a cross-sectional view of a modified conventional trailer hollow axle with spindle that is generally used in North America for the purposes of carrying hub-drum assemblies L~oo647 carrying wheels of a tractor trailer. It consists of a hollow cylindrical shaft (11) that is the axle to the trailer (not shown) and extends from one side of the trailer to the opposite side, only the left-hand portion of the hollow axle (11) is indicated. It is welded, at its end, to a hollow, stepped cylindrical or swaged member, referred to as an axle-spindle (12) by an annular weld ( 13) . The spindle ( 12) has a first outer annular step (14) to accommodate an inner larger diameter cylindrical roller bearing ( 16) and then steps into a smaller diameter outer annular step ( 15) which accommodates an outer smaller annular roller bearing (18). The end of the spindle ( 12) is outwardly threaded at (17). The outer bearing (18) is held in position by a double locking nut and washer assembly (19,20,21) which is constrained by the threaded nuts (19,21) into locking position over the outer threads (17) against the outer surface of the outer smaller bearing (18). Typically, a wheel hub and drum assembly (30,35) has an outer radial flange ( 35) integral with a hub drum portion (not referenced) which defines an inner bore (36). The flange (35) carries rim (30) and inner and outer tandem wheels ( 31) and ( 32) that are attached to the peripheral of the flange ( 35) by conventional means. The inner bore ( 36) is profiled in a manner to allow the hub drum assembly ( 30,35) to freely rotate over the bearings (16) and (18) in a fashion conventionally known. The spindle (15) has an internal bore (23) and is generally fitted with an overcovering frost plug ( 24) to isolate contaminates from entering into the bore ( 23) that may be partially filled with a lubricant such as grease or oil.
Conventionally, the bore (23) terminates at an inner end surface ( 26) but according to the invention, a sealed aperture (27) is drilled therein to provide access for the passage, in a sealing fashion, of an electrical conducting wire (51), part of a circuit (50), see Figure 2, serially connected to a battery (B) -and an indicator (I) and a thermal sensor (S) preferably located within the bore (23). The sensor (S) is in the thermal contact with that bearing region defined by the diametrical planes of the roller bearings (16) and (18), thus preferably located co-incident to the diametrical plane of the outer smaller bearing (18) and confined within the bore (23).
Preferably, the indicator (I) is placed in the driver cabin and is visible to the driver of the lorry and the indicator (I) remains on when the temperature measured by the sensor (S) is below the upper threshold temperature range, 270 F to 290 F. Thus, any time the ignition o~ the lorry is activated the indicator (I) will light indicating that the sensor (S) is working properly. When the threshold temperatures is exceeded, the indicator light (I) extinguishes indicating that the bearing region (16,18) temperature has exceed threshold temperature. Although the preferred range is 270 F to 290 F, depending upon the materials used for the hub and drum assembly (30,35) and their respective physical properties, the threshold temperature range can be varied.
llEAT SENSOR FOR TRACTOR TRAILER AXLE
This invention relates to a tractor trailer axle heat sensor adapted to sense the temperature at a rotating bearing interface disposed between a trailer axle spindle and a hub-drum assembly which carries tire rims and tires.
BACKGROUND TO TIIE INVENTION
In lorries; or, large tractor trailers commonly used in North America, the trailers or semi-trailers generally use tandem double wheels on either side, at the rear; sometimes also in the centre.
Over the past short while wi~h the increase of cargo loads carried by such trailers during transit across the highway network throughout North America and particularly in the Province of Ontario, Canada, many accidents have occurred due to the fact that the drum-hub assembly flies off the trailer axle spindle due to fatigue of the studs or nuts holding the hub-drum Z0 assembly to the axle spindle. Severe damages to other vehicles occur and in some instances, even death to motorists who travel behind, in front, or along the opposite travelling lanes to the truck that is having these difficulties.
THE INVENTION
It is an object of the invention to provide a warning device, to the operator of the truck pulling a trailer, of a temperature increase in the axle spindle-bearing-hub and drum assembly interface for each wheel on the trailer. The hub-drum assembly is secured onto the axle spindle generally by a hub-drum locking assembly which threadingly engages over a threaded portion of the spindle end to hold the hub-drum sub-assembly on the spindle. A pair of annular roller bearings are provided between the hub-drum assembly and the spindle to allow free rotation of that assembly about the spindle during travel. Generally there are two bearings, an inner larger bearing and an outer smaller bearing. If either of these bearings are not .
adequately maintained, they tend to dry up and seize and the temperature of the bearing region is increased, as is the axle spindle itself and the rotational bore define~ ~y the hub-drum assembly. When the temperature at the bearing region increases beyond either the fatigue temperature of the bearing itself or, of the spindle axle, the whole hub-drum assembly dislodges and can fly off and away from the trailer. This phenomenum has been referred to in recent literature as "run-away truck wheels". When the lorry is travelling at speeds of lOOkmh or more, the momentum of such run-away truck wheels will travel great distances, sometime cross the meridian of the highway into oncoming traffic. In other instances, the retaining nuts loosen or melt off creating run-away truck wheels. Fatigue generally occurs when the temperature of the bearing interface rises above 270 F and when it reaches approximately 290 F, metal fatigue can set in to the adjoining regions of the hub-drum assembly and of the axle spindle.
It is an object of this invention to monitor the temperature at the spindle-axle/hub-drum interface and to provide the driver of the truck pulling the trailer having such sensored wheels an indication that the temperature has risen above 270 F so that the rig can be taken off the road; then servicing take place.
The invention contemplates a method of measuring the temperature at a bearing interface thermally in contact with a spindle attached to at least one end of an axle carrying with drum-hub assembly adapted for rotating on the bearing, the assembly carrying tire rim and tires by which the trailer is traversed with the ground comprising the steps of placing a thermo couple in thermal contact with the bearing, monitoring the temperature of the bearing up to a predetermined upper threshold temperature above which thermal metal fatigue can ensue and, activating a warning indicator when the threshold temperature has been reached.
Additionally, the invention contemplates a temperature responsive device adapted to monitor a threshold temperature of a bearing region disposed between an axle-s~indle and a hub and drum sub-assembly, the sub-assembly carrying about its outer perimeter tire rims adapted for engagement of tires which traverse the ground and upon which a trailer carried by the axle is traversed comprising an axle-spindle defining, on its outer perimeter, an annular bearing region, a hub and drum assembly defining an inner bore adapted to rotatingly travel within the annular bearing region, a thermal sensor thermally in contact with the bearing region and, monitorin~ means electrically attached to the thermal sensor and responsive to a threshold temperature including an indicator means therefor. Preferably, thermal sensor is located within a bore defined by the axle-spindle and co-axial with the bearing region, preferably located between the diametrical plane of the ends of the bearing region and as described in the preferred embodiment in the diametrical plane of an outer annular bearing where there are two annular bearings defining the bearing region.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will now be described by way of example and in reference to the accompanying drawings in which:
Figure 1 is cross-sectional view of a portion of an axle with spindle according to the invention;
Figure 2 is a block circuit diagramme of the electronic circuit according to the invention for measuring the temperature of each spindle axle-bearing interface.
Referring to Figure 1, (10) is a cross-sectional view of a modified conventional trailer hollow axle with spindle that is generally used in North America for the purposes of carrying hub-drum assemblies L~oo647 carrying wheels of a tractor trailer. It consists of a hollow cylindrical shaft (11) that is the axle to the trailer (not shown) and extends from one side of the trailer to the opposite side, only the left-hand portion of the hollow axle (11) is indicated. It is welded, at its end, to a hollow, stepped cylindrical or swaged member, referred to as an axle-spindle (12) by an annular weld ( 13) . The spindle ( 12) has a first outer annular step (14) to accommodate an inner larger diameter cylindrical roller bearing ( 16) and then steps into a smaller diameter outer annular step ( 15) which accommodates an outer smaller annular roller bearing (18). The end of the spindle ( 12) is outwardly threaded at (17). The outer bearing (18) is held in position by a double locking nut and washer assembly (19,20,21) which is constrained by the threaded nuts (19,21) into locking position over the outer threads (17) against the outer surface of the outer smaller bearing (18). Typically, a wheel hub and drum assembly (30,35) has an outer radial flange ( 35) integral with a hub drum portion (not referenced) which defines an inner bore (36). The flange (35) carries rim (30) and inner and outer tandem wheels ( 31) and ( 32) that are attached to the peripheral of the flange ( 35) by conventional means. The inner bore ( 36) is profiled in a manner to allow the hub drum assembly ( 30,35) to freely rotate over the bearings (16) and (18) in a fashion conventionally known. The spindle (15) has an internal bore (23) and is generally fitted with an overcovering frost plug ( 24) to isolate contaminates from entering into the bore ( 23) that may be partially filled with a lubricant such as grease or oil.
Conventionally, the bore (23) terminates at an inner end surface ( 26) but according to the invention, a sealed aperture (27) is drilled therein to provide access for the passage, in a sealing fashion, of an electrical conducting wire (51), part of a circuit (50), see Figure 2, serially connected to a battery (B) -and an indicator (I) and a thermal sensor (S) preferably located within the bore (23). The sensor (S) is in the thermal contact with that bearing region defined by the diametrical planes of the roller bearings (16) and (18), thus preferably located co-incident to the diametrical plane of the outer smaller bearing (18) and confined within the bore (23).
Preferably, the indicator (I) is placed in the driver cabin and is visible to the driver of the lorry and the indicator (I) remains on when the temperature measured by the sensor (S) is below the upper threshold temperature range, 270 F to 290 F. Thus, any time the ignition o~ the lorry is activated the indicator (I) will light indicating that the sensor (S) is working properly. When the threshold temperatures is exceeded, the indicator light (I) extinguishes indicating that the bearing region (16,18) temperature has exceed threshold temperature. Although the preferred range is 270 F to 290 F, depending upon the materials used for the hub and drum assembly (30,35) and their respective physical properties, the threshold temperature range can be varied.
Claims (6)
1. A method of measuring the temperature at a bearing interface thermally in contact with a spindle attached to at least one end of an axle carrying with drum-hub assembly adapted for rotating on the bearing, the assembly carrying tire rim and tires by which the trailer is traversed with the ground comprising the steps of;
(a) placing a thermo couple in thermal contact with the bearing;
(b) monitoring the temperature of the bearing up to a predetermined upper threshold temperature above which thermal metal fatigue can ensue; and, (c) activating a warning indicator when the threshold temperature has been reached.
(a) placing a thermo couple in thermal contact with the bearing;
(b) monitoring the temperature of the bearing up to a predetermined upper threshold temperature above which thermal metal fatigue can ensue; and, (c) activating a warning indicator when the threshold temperature has been reached.
2. A temperature responsive device adapted to monitor a threshold temperature of a bearing region disposed between an axle-spindle and a hub and drum sub-assembly, the sub-assembly carrying about its outer perimeter tire rims adapted for engagement of tires which traverse the ground and upon which a trailer carried by the axle is traversed comprising:
(a) an axle-spindle defining, on its outer perimeter, an annular bearing region;
(b) a hub and drum assembly defining an inner bore adapted to rotatingly travel within the annular bearing region;
(c) a thermal sensor thermally in contact with the bearing region; and, (d) monitoring means electrically attached to the thermal sensor and responsive to a threshold temperature including an indicator means therefor.
(a) an axle-spindle defining, on its outer perimeter, an annular bearing region;
(b) a hub and drum assembly defining an inner bore adapted to rotatingly travel within the annular bearing region;
(c) a thermal sensor thermally in contact with the bearing region; and, (d) monitoring means electrically attached to the thermal sensor and responsive to a threshold temperature including an indicator means therefor.
3. The temperature responsive device as claimed in claim 2, wherein the thermal sensor is located within a bore defined by the axle-spindle and co-axial with the bearing region.
4. The temperature responsive device as claimed in claim 2, wherein the thermal sensor is positioned in a diametrical plane of the annular bearing region.
5. The temperature responsive device as claimed in claim 4, wherein the bearing region is defined by an inner annular bearing and an outer annular bearing.
6. The temperature responsive device as claimed in claim 4 or 5, wherein the sensor is in the diametrical plane of the outer annular bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002200647A CA2200647A1 (en) | 1997-03-21 | 1997-03-21 | Heat sensor for tractor trailer axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002200647A CA2200647A1 (en) | 1997-03-21 | 1997-03-21 | Heat sensor for tractor trailer axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2200647A1 true CA2200647A1 (en) | 1998-09-21 |
Family
ID=4160217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002200647A Abandoned CA2200647A1 (en) | 1997-03-21 | 1997-03-21 | Heat sensor for tractor trailer axle |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2200647A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1398179A3 (en) * | 2002-09-10 | 2005-04-27 | BPW Bergische Achsen KG | Wheel bearing, especially for trailer axles |
| WO2008154086A1 (en) * | 2007-06-06 | 2008-12-18 | General Electric Company | Identification of a defect or operating characteristic |
| US7652562B2 (en) * | 2005-10-13 | 2010-01-26 | Hendrickson Usa, L.L.C. | Vehicle temperature warning system and method |
| WO2016037976A1 (en) * | 2014-09-12 | 2016-03-17 | Saf-Holland Gmbh | Axle unit |
| WO2017072143A1 (en) * | 2015-10-30 | 2017-05-04 | Robert Bosch Gmbh | Systems and methods for monitoring wheel hub temperatures and odometry in trailer axles |
| US10099672B2 (en) | 2014-11-11 | 2018-10-16 | Gerald Hoefsloot | System for measuring brake balance on multi-axel commercial vehicles by monitoring brake temperatures |
| DE102014218323B4 (en) * | 2014-09-12 | 2020-12-31 | Saf-Holland Gmbh | Axle unit |
| GB2588273A (en) * | 2019-07-08 | 2021-04-21 | Skf Ab | Kingpin Unit |
| US11714005B2 (en) | 2019-09-11 | 2023-08-01 | Aktiebolaget Skf | Measurement method of the temperature of mechanical part of a wheel end of an automotive vehicle and corresponding device |
-
1997
- 1997-03-21 CA CA002200647A patent/CA2200647A1/en not_active Abandoned
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1398179A3 (en) * | 2002-09-10 | 2005-04-27 | BPW Bergische Achsen KG | Wheel bearing, especially for trailer axles |
| US7652562B2 (en) * | 2005-10-13 | 2010-01-26 | Hendrickson Usa, L.L.C. | Vehicle temperature warning system and method |
| WO2008154086A1 (en) * | 2007-06-06 | 2008-12-18 | General Electric Company | Identification of a defect or operating characteristic |
| US7693673B2 (en) | 2007-06-06 | 2010-04-06 | General Electric Company | Apparatus and method for identifying a defect and/or operating characteristic of a system |
| CN106687304A (en) * | 2014-09-12 | 2017-05-17 | 塞夫霍兰德有限公司 | Axle unit |
| DE102014218332B4 (en) | 2014-09-12 | 2022-05-05 | Saf-Holland Gmbh | axle unit |
| CN106687304B (en) * | 2014-09-12 | 2019-10-25 | 塞夫霍兰德有限公司 | Axle unit |
| RU2658248C1 (en) * | 2014-09-12 | 2018-06-19 | Саф-Холланд Гмбх | Axis assembly |
| AU2015314324B2 (en) * | 2014-09-12 | 2018-11-08 | Saf-Holland Gmbh | Axle unit |
| WO2016037976A1 (en) * | 2014-09-12 | 2016-03-17 | Saf-Holland Gmbh | Axle unit |
| DE102014218323B4 (en) * | 2014-09-12 | 2020-12-31 | Saf-Holland Gmbh | Axle unit |
| US10513149B2 (en) | 2014-09-12 | 2019-12-24 | Saf-Holland Gmbh | Axle unit |
| US10099672B2 (en) | 2014-11-11 | 2018-10-16 | Gerald Hoefsloot | System for measuring brake balance on multi-axel commercial vehicles by monitoring brake temperatures |
| US20180330556A1 (en) * | 2015-10-30 | 2018-11-15 | Robert Bosch Gmbh | Systems and methods for monitoring wheel hub temperatures and odometry in trailer axles |
| AU2016344639B2 (en) * | 2015-10-30 | 2019-07-11 | Robert Bosch Gmbh | Systems and methods for monitoring wheel hub temperatures and odometry in trailer axles |
| US10846952B2 (en) | 2015-10-30 | 2020-11-24 | Robert Bosch Gmbh | Systems and methods for monitoring wheel hub temperatures and odometry in trailer axles |
| JP2019502061A (en) * | 2015-10-30 | 2019-01-24 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツングＲｏｂｅｒｔ Ｂｏｓｃｈ Ｇｍｂｈ | System and method for monitoring wheel hub temperature and mileage on a trailer shaft |
| WO2017072143A1 (en) * | 2015-10-30 | 2017-05-04 | Robert Bosch Gmbh | Systems and methods for monitoring wheel hub temperatures and odometry in trailer axles |
| GB2588273A (en) * | 2019-07-08 | 2021-04-21 | Skf Ab | Kingpin Unit |
| US11346749B2 (en) | 2019-07-08 | 2022-05-31 | Aktiebolaget Skf | Kingpin unit |
| GB2588273B (en) * | 2019-07-08 | 2022-09-21 | Skf Ab | Kingpin Unit |
| US11714005B2 (en) | 2019-09-11 | 2023-08-01 | Aktiebolaget Skf | Measurement method of the temperature of mechanical part of a wheel end of an automotive vehicle and corresponding device |
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