CA2738168A1 - Wheel end sensor cooling device - Google Patents
Wheel end sensor cooling device Download PDFInfo
- Publication number
- CA2738168A1 CA2738168A1 CA 2738168 CA2738168A CA2738168A1 CA 2738168 A1 CA2738168 A1 CA 2738168A1 CA 2738168 CA2738168 CA 2738168 CA 2738168 A CA2738168 A CA 2738168A CA 2738168 A1 CA2738168 A1 CA 2738168A1
- Authority
- CA
- Canada
- Prior art keywords
- air
- sensor
- vehicle
- axle
- wheel
- 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.)
- Granted
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 11
- 230000001105 regulatory effect Effects 0.000 claims abstract description 6
- 238000012544 monitoring process Methods 0.000 claims description 15
- 230000004913 activation Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 241001417501 Lobotidae Species 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- 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
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
- B60T17/221—Procedure or apparatus for checking or keeping in a correct functioning condition of brake systems
-
- 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
- B60T5/00—Vehicle modifications to facilitate cooling of brakes
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Regulating Braking Force (AREA)
- Braking Arrangements (AREA)
Abstract
The invention relates to a device for cooling a wheel end sensor. The device comprises an air tank which supplies air through a regulated electric valve which is controlled by activation of a brake wire. Air flows through an air line to sensor when the parking brakes are on and the vehicle is running.
Description
Wheel End Sensor Cooling Device TECHNICAL FIELD
This invention relates to control of tractor-trailers and other freight-carrying vehicles: specifically, a device for cooling wheel end sensors or wheel end monitoring systems.
BACKGROUND
Different jurisdictions have different requirements for equipping and operating load-bearing transport vehicles. For example, the province of Ontario, Canada has a series of explicit requirements for "safe, productive and infrastructure-friendly vehicles" found in Regulation 413/05 under the Highway Traffic Act. The requirements include the use of an automatic device that locks the rearmost self-steering axle in the straight ahead position when a tractor-trailer is travelling at a speed over 60 kilometers per hour.
Electronic and mechanical technology related to large vehicles has been outlined in previous patent publications. By way of illustration, the following patents and publications relate to a broad spectrum of vehicle construction, monitoring, and operation.
U.S. Patent 7,568,710 refers to a sensor system for actuating the lifting of a steerable axle of a vehicle. U.S. Patents 4,854,409; 6,572,124; 6,810,982; 7,735,516 generally refer to lift axle control systems. U.S. Patent 7,222,867 refers to a positioning system for a lift axle for wheeled vehicles, in which an electrical system controller is programmed to issue instructions to the lift axle means responsive to the values of the load sensors, the vehicle speed sensor, the transmission controller, the park brake position sensor and the ignition switch position sensor.
U.S. Patent 5,959,365 (J. Mantini et al.) describes an early warning device for tire rims and hub assemblies. It provides a monitoring system for detecting problems associated with the wheels on vehicle axles, with one or more sensors located on the vehicle axles adjacent the wheels, a programmable micro processor for receiving and processing the sensor signals to detect an alarm condition and an alarm to alert the driver of a problem with one or more of the wheels wherein said sensors detect heat, noise or vibration. U.S. patent publication 2002/0019688 Al describes an apparatus to monitor the rotation of the brake cam shaft, having a sensor that can convert the rotational movement of the brake cam shaft to an electrical signal.
U.S. Patent 6,921,100 and describes a system for adjusting weight distribution throughout axle groups of a truck and trailer. The technology involves measuring the weight on every axle group on the truck and trailer, detecting the position of said at least one axle group on the trailer relative to said rails, I
calculating the weight on each axle group and determine a needed change in position on the rails to optimize the weight distribution.
U.S. Patent 7,408,452 refers to a wireless wheel speed sensor. U.S. Patent publication 2009/0109066 Al refers to a wireless wheel-sensor system for dead reckoning navigation applications.
U.S. Patent 6,830,250 outlines a system for automatically and simultaneously controlling one or more vehicle functions by detecting the direction of movement of and the distance traveled by the vehicle. The proposed control system includes an electronic sensor mounted on a selected one of the vehicle axles adjacent to and facing an anti-lock braking system tone ring. The sensor is electrically connected to an electronic control module, which in turn is electrically connected to a vehicle function actuation device such as a lift axle solenoid or back-up alarm actuation device.
U.S. Patents 4,336,720 and 5,681,998 refer to a load sensing system or device for a vehicle.
U.S. Patent 6,259,041 refers to an onboard indicator for measuring the weight of vehicles. U.S. Patent 7,216,024 generally describes an industrial truck with a stabilizing device.
U.S. Patent 7,677,339 is entitled Vehicle Suspension Arrangement. Published U.S. application 2008/0250894 Al refers to a load-sensor-equipped device. Published U.S. application 2008/0285901 Al provides a wheel support bearing assembly.
High technology vehicle operating equipment is available commercially from Wheel Monitor Inc., Niagara-on-the-Lake, Ontario. The Reverse-A-MaticTM is a trailer direction sensing system that automatically locks or lifts a self-steer axle. The RM-60 model will also lift the forward axle when the four way flashers are activated. The device transfers weight onto the drive axles for increased traction during slippery uphill conditions. The BalancerTM is an electronic liftable axle control for lifting axles when not in use. It monitors the axle load weight and lifts automatically when the trailer is empty. The ProvisoT"" is an electronic lift axle control system that lifts and locks axles when a vehicle is in reverse, and also has an automatic lift function based on axle load weight. It monitors the position of the lift axle and offers an in-cab light and lift axle switch for axle position monitoring and lift control.
Because of its location, any wheel monitoring system is potentially subject to damage due to high temperature. For example, high temperatures are caused by brake shoe or brake pad friction from brake disc rotors or drums.
A device which can be used to cool wheel end sensors such as ABS, ECBS or by-directional control sensors is described below.
SUMMARY OF THE INVENTION
This patent describes a device for cooling a wheel monitoring system on a vehicle, comprising an air tank for supplying air to the wheel monitoring system; a means for regulating the supply of air from the air tank; and a conduit for moving the air from the air tank to the wheel monitoring system. The wheel monitoring system is adapted to receive information about the temperature of the wheel monitoring
This invention relates to control of tractor-trailers and other freight-carrying vehicles: specifically, a device for cooling wheel end sensors or wheel end monitoring systems.
BACKGROUND
Different jurisdictions have different requirements for equipping and operating load-bearing transport vehicles. For example, the province of Ontario, Canada has a series of explicit requirements for "safe, productive and infrastructure-friendly vehicles" found in Regulation 413/05 under the Highway Traffic Act. The requirements include the use of an automatic device that locks the rearmost self-steering axle in the straight ahead position when a tractor-trailer is travelling at a speed over 60 kilometers per hour.
Electronic and mechanical technology related to large vehicles has been outlined in previous patent publications. By way of illustration, the following patents and publications relate to a broad spectrum of vehicle construction, monitoring, and operation.
U.S. Patent 7,568,710 refers to a sensor system for actuating the lifting of a steerable axle of a vehicle. U.S. Patents 4,854,409; 6,572,124; 6,810,982; 7,735,516 generally refer to lift axle control systems. U.S. Patent 7,222,867 refers to a positioning system for a lift axle for wheeled vehicles, in which an electrical system controller is programmed to issue instructions to the lift axle means responsive to the values of the load sensors, the vehicle speed sensor, the transmission controller, the park brake position sensor and the ignition switch position sensor.
U.S. Patent 5,959,365 (J. Mantini et al.) describes an early warning device for tire rims and hub assemblies. It provides a monitoring system for detecting problems associated with the wheels on vehicle axles, with one or more sensors located on the vehicle axles adjacent the wheels, a programmable micro processor for receiving and processing the sensor signals to detect an alarm condition and an alarm to alert the driver of a problem with one or more of the wheels wherein said sensors detect heat, noise or vibration. U.S. patent publication 2002/0019688 Al describes an apparatus to monitor the rotation of the brake cam shaft, having a sensor that can convert the rotational movement of the brake cam shaft to an electrical signal.
U.S. Patent 6,921,100 and describes a system for adjusting weight distribution throughout axle groups of a truck and trailer. The technology involves measuring the weight on every axle group on the truck and trailer, detecting the position of said at least one axle group on the trailer relative to said rails, I
calculating the weight on each axle group and determine a needed change in position on the rails to optimize the weight distribution.
U.S. Patent 7,408,452 refers to a wireless wheel speed sensor. U.S. Patent publication 2009/0109066 Al refers to a wireless wheel-sensor system for dead reckoning navigation applications.
U.S. Patent 6,830,250 outlines a system for automatically and simultaneously controlling one or more vehicle functions by detecting the direction of movement of and the distance traveled by the vehicle. The proposed control system includes an electronic sensor mounted on a selected one of the vehicle axles adjacent to and facing an anti-lock braking system tone ring. The sensor is electrically connected to an electronic control module, which in turn is electrically connected to a vehicle function actuation device such as a lift axle solenoid or back-up alarm actuation device.
U.S. Patents 4,336,720 and 5,681,998 refer to a load sensing system or device for a vehicle.
U.S. Patent 6,259,041 refers to an onboard indicator for measuring the weight of vehicles. U.S. Patent 7,216,024 generally describes an industrial truck with a stabilizing device.
U.S. Patent 7,677,339 is entitled Vehicle Suspension Arrangement. Published U.S. application 2008/0250894 Al refers to a load-sensor-equipped device. Published U.S. application 2008/0285901 Al provides a wheel support bearing assembly.
High technology vehicle operating equipment is available commercially from Wheel Monitor Inc., Niagara-on-the-Lake, Ontario. The Reverse-A-MaticTM is a trailer direction sensing system that automatically locks or lifts a self-steer axle. The RM-60 model will also lift the forward axle when the four way flashers are activated. The device transfers weight onto the drive axles for increased traction during slippery uphill conditions. The BalancerTM is an electronic liftable axle control for lifting axles when not in use. It monitors the axle load weight and lifts automatically when the trailer is empty. The ProvisoT"" is an electronic lift axle control system that lifts and locks axles when a vehicle is in reverse, and also has an automatic lift function based on axle load weight. It monitors the position of the lift axle and offers an in-cab light and lift axle switch for axle position monitoring and lift control.
Because of its location, any wheel monitoring system is potentially subject to damage due to high temperature. For example, high temperatures are caused by brake shoe or brake pad friction from brake disc rotors or drums.
A device which can be used to cool wheel end sensors such as ABS, ECBS or by-directional control sensors is described below.
SUMMARY OF THE INVENTION
This patent describes a device for cooling a wheel monitoring system on a vehicle, comprising an air tank for supplying air to the wheel monitoring system; a means for regulating the supply of air from the air tank; and a conduit for moving the air from the air tank to the wheel monitoring system. The wheel monitoring system is adapted to receive information about the temperature of the wheel monitoring
2 system and wherein the means for regulating the supply of air from the air tank is linked to the braking system of the vehicle when the vehicle is running.
DRAWINGS
FIG. 1 is a schematic representation of a cooling device for wheel end sensors according to one embodiment of the invention.
DETAILED DESCRIPTION
This invention provides an air cooling device to cool wheel end sensors such as anti-lock braking system (ABS), ECBS or by-directional control sensors from being damaged by excessive temperatures created by brake shoe or pad friction from brake disc rotors or drums. Because of where the sensors are located in the wheel hub axle end or mounting bracket, the sensors are periodically subjected to excessive high temperatures of up to 1000 degrees Fahrenheit. This high temperature is dangerous to electrical and electronic sensors. Therefore, when sensors fail, the electronic ECU, such as ABS-ECBS brake and axle controllers, are not capable to operate as designed and could lead to a dangerous braking or axle control situation.
The invention relies on the principle for the air to flow through and collect heat and exhaust to keep the sensors from baking to a point of destruction. The invention utilizes air from the vehicle air line through a pressure protection valve, then through a check valve to an electric valve controlled by the voltage power of the brake light circuit. When the brakes are applied, the electric valve permits a preset air pressure to flow through a small air line. This air line is overmolded or potted in the electric or electronic sensor such as an ABS or by-directional sensor and the alike, that needs cooling. The tubing is embedded as far as possible in the sensor housing. The heated air is then sent out to exhaust.
The system could be controlled by an ECU such as ABS, ECBS or the alike to control the air valve to allow air to flow when the ECU reads a pre-determined temperature from a temperature sensor such as a semiconductor embedded in the wheel speed or by-directional sensor. The ECU
can be activated preferably from the brake wire or from the ignition key in the on-position.
As shown in Figure 1, the present invention relates to a system for cooling a sensor(s) that operates in high temperature conditions. The system has at least one reserve air tank (3) that supply's air through a regulated electric valve (4) controlled by activation of the brake wire (8) and allows air to flow through an air line or tube that ultimately flows air in a tube that is potted or over molded in a sensor. The tubing (7) is
DRAWINGS
FIG. 1 is a schematic representation of a cooling device for wheel end sensors according to one embodiment of the invention.
DETAILED DESCRIPTION
This invention provides an air cooling device to cool wheel end sensors such as anti-lock braking system (ABS), ECBS or by-directional control sensors from being damaged by excessive temperatures created by brake shoe or pad friction from brake disc rotors or drums. Because of where the sensors are located in the wheel hub axle end or mounting bracket, the sensors are periodically subjected to excessive high temperatures of up to 1000 degrees Fahrenheit. This high temperature is dangerous to electrical and electronic sensors. Therefore, when sensors fail, the electronic ECU, such as ABS-ECBS brake and axle controllers, are not capable to operate as designed and could lead to a dangerous braking or axle control situation.
The invention relies on the principle for the air to flow through and collect heat and exhaust to keep the sensors from baking to a point of destruction. The invention utilizes air from the vehicle air line through a pressure protection valve, then through a check valve to an electric valve controlled by the voltage power of the brake light circuit. When the brakes are applied, the electric valve permits a preset air pressure to flow through a small air line. This air line is overmolded or potted in the electric or electronic sensor such as an ABS or by-directional sensor and the alike, that needs cooling. The tubing is embedded as far as possible in the sensor housing. The heated air is then sent out to exhaust.
The system could be controlled by an ECU such as ABS, ECBS or the alike to control the air valve to allow air to flow when the ECU reads a pre-determined temperature from a temperature sensor such as a semiconductor embedded in the wheel speed or by-directional sensor. The ECU
can be activated preferably from the brake wire or from the ignition key in the on-position.
As shown in Figure 1, the present invention relates to a system for cooling a sensor(s) that operates in high temperature conditions. The system has at least one reserve air tank (3) that supply's air through a regulated electric valve (4) controlled by activation of the brake wire (8) and allows air to flow through an air line or tube that ultimately flows air in a tube that is potted or over molded in a sensor. The tubing (7) is
3 embedded in the sensor so that it lays in to the maximum length of sensor or coiled back out to absorb heat to cool the sensor. When the vehicle parking brakes are on (with the vehicle running), the air will flow to keep cooling the sensors (5) from the time of last braking until the separate reserve tank (3) depletes the air. The air may also be controlled by the ECU (9) receiving signals from an embedded temperature sensor (12) in the sensor (5) signaling the air valve (4) to flow air to cool the sensors from overheating.
4
Claims
1. A device for cooling a wheel monitoring system on a vehicle, comprising:
a) an air tank for supplying air to the wheel monitoring system;
b) a means for regulating the supply of air from the air tank;
c) a conduit for moving the air from the air tank to the wheel monitoring system;
wherein the wheel monitoring system is adapted to receive information about the temperature of the wheel monitoring system and wherein the means for regulating the supply of air from the air tank is linked to the braking system of the vehicle when the vehicle is running.
a) an air tank for supplying air to the wheel monitoring system;
b) a means for regulating the supply of air from the air tank;
c) a conduit for moving the air from the air tank to the wheel monitoring system;
wherein the wheel monitoring system is adapted to receive information about the temperature of the wheel monitoring system and wherein the means for regulating the supply of air from the air tank is linked to the braking system of the vehicle when the vehicle is running.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2738168A CA2738168C (en) | 2011-04-13 | 2011-04-13 | Wheel end sensor cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2738168A CA2738168C (en) | 2011-04-13 | 2011-04-13 | Wheel end sensor cooling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2738168A1 true CA2738168A1 (en) | 2012-10-13 |
| CA2738168C CA2738168C (en) | 2019-03-19 |
Family
ID=47008192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2738168A Active CA2738168C (en) | 2011-04-13 | 2011-04-13 | Wheel end sensor cooling device |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2738168C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3063503A4 (en) * | 2013-10-25 | 2017-06-07 | IMT Partnership | Automotive sensor active temperature control and temperature fault monitoring |
| CN113939437A (en) * | 2019-06-06 | 2022-01-14 | 克诺尔商用车制动系统有限公司 | Wheel revolution sensor for a commercial vehicle |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113091487A (en) * | 2021-04-25 | 2021-07-09 | 安徽江淮汽车集团股份有限公司 | Heating device for air cylinder |
-
2011
- 2011-04-13 CA CA2738168A patent/CA2738168C/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3063503A4 (en) * | 2013-10-25 | 2017-06-07 | IMT Partnership | Automotive sensor active temperature control and temperature fault monitoring |
| CN113939437A (en) * | 2019-06-06 | 2022-01-14 | 克诺尔商用车制动系统有限公司 | Wheel revolution sensor for a commercial vehicle |
| CN113939437B (en) * | 2019-06-06 | 2023-09-22 | 克诺尔商用车制动系统有限公司 | Wheel revolution sensor for commercial vehicle |
| US11988684B2 (en) | 2019-06-06 | 2024-05-21 | Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh | Wheel speed sensor for a utility vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2738168C (en) | 2019-03-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |
Effective date: 20151210 |