Brake wear managing system

• US 6,341,670 B1
• Filed: 02/17/2000
• Issued: 01/29/2002
• Est. Priority Date: 02/19/1999
• Status: Expired due to Fees

• Current Assignee: Rideau Bulk, Ltd.
• Original Assignee: Rideau Bulk, Ltd.
• Inventors: Leblanc, Daniel, Hardy, Sébastien
• Primary Examiner(s): Butler, Douglas C.
• Assistant Examiner(s): KRAMER, DEVON C
• Application Number:
  US09/505,964
• Time in Patent Office: 712 Days
• Field of Search: 188/1.11 R, 188/1.11 E, 188/1.11 L, 188/1.11 W, 340/454
• US Class Current: 188/1.11L
• CPC Class Codes: B60T 17/221 Procedure or apparatus for checking or keeping in a correct functioning condition of brake systems hydraulic pressure systems in general F15B19/00, F15B21/04; testing structures or apparatus G01M
• CPC Class Codes: F16D 2066/006 without direct measurement of the quantity monitored, e.g. wear or temperature calculated form force and duration of braking
• CPC Class Codes: F16D 2121/12 for releasing a normally applied brake, the type of actuator being irrelevant or not provided for in groups F16D2121/04 - F16D2121/10
• CPC Class Codes: F16D 2125/30 acting on two or more cam followers, e.g. S-cams
• CPC Class Codes: F16D 51/22 mechanically actuated
• CPC Class Codes: F16D 65/28 arranged apart from the brake
• CPC Class Codes: F16D 66/00 Arrangements for monitoring working conditions, e.g. wear, temperature

Abstract

A brake wear managing system is disclosed herein. The brake wear managing system comprises a plurality of sensor assemblies, an on-board controller and, optionally, a remote controller. The sensor assembly includes a mounting assembly and a sensor to measure the wear of a brake assembly and to generate a signal accordingly. Each sensor is coupled to the on-board controller. The on-board controller is configured to generate brake wear condition signals in response to the signal generated by each sensor. The optional remote controller is directly connected to the on-board controller or coupled to it via a wireless communication signal. The remote controller is configured to be operated either in maintenance mode or in operational mode.

Claims

1. A brake wear managing system for a vehicle provided with at least one drum brake assembly including a push rod and an air drum bolt, said brake wear managing system comprising:

at least one sensor assembly including a sensor and a mounting assembly to mount said sensor to one of the at least one drum brake assembly for movement in unison with the push rod;

said mounting assembly including a universal joint connecting said sensor assembly to said air drum bolt of said drum brake assembly;

the sensor being so configured as to generate a signal responsive to brake wear; and

an on-board controller coupled to each sensor;

said on-board controller being configured to receive said signal from each sensor and to generate brake wear condition signals accordingly.

2. A brake wear managing system as recited in claim 1, wherein said sensor includes a hollow body having a cylindrical bore, a sliding rod so mounted in said hollow body as to reciprocate, a magnet mounted to said sliding rod, a Hall effect sensor mounted in said cylindrical hollow body so as to be magnetically coupled with said magnet and to generate a signal responsive to the position of said magnet.

3. A brake wear managing system as recited in claim 2, wherein at least one of said cylindrical hollow body and said sliding rod is made of brass.

4. A brake wear managing system as recited in claim 2, wherein said hollow body is covered by an ultra high molecular weight material.

5. A brake wear managing system as recited in claim 1, further comprising at least one junction box for relaying signals from said at least one sensor assembly to said on on-board controller.

6. A brake wear managing system as recited in claim 1, wherein the vehicle includes a tractor unit;

said on-board controller being located in said tractor unit.

7. A brake wear managing system for a vehicle provided with at least one drum brake assembly including a push rod, said brake wear managing system comprising:

at least one sensor assembly including a sensor and a mounting assembly to mount said sensor to one of the at least one drum brake assembly for movement in unison with the push rod;

said mounting assembly including a bracket having first and second opposite end portion;

said first end portion being so configured to be secured to said push rod and said second end portion being so configured to be secured to said sliding rod;

said sensor including a hollow body having a cylindrical bore, a sliding rod so mounted in said hollow body as to reciprocate, a magnet mounted to said sliding rod, a Hall effect sensor mounted in said cylindrical hollow body so as to be magnetically coupled with said magnet and to generate a signal responsive to the position of said magnet;

said sensor being so configured as to generate a signal responsive to brake wear; and

an on-board controller coupled to each sensor;

said on-board controller being configured to receive said signal from each sensor and to generate brake wear condition signals accordingly.

8. A brake wear managing system as recited in claim 7, wherein said bracket is a S-shaped bracket.

9. A brake wear managing system as recited in claim 7, further comprising at least one junction box for relaying signals from said at least one sensor assembly to said on on-board controller.

10. A brake wear managing system as recited in claim 7, wherein the vehicle includes a tractor unit;

said on-board controller being located in said tractor unit.

11. A brake wear managing system for a vehicle provided with at least one brake assembly, said brake wear managing system comprising:

at least one sensor assembly including a sensor and a mounting assembly to secure said sensor to one of the at least one brake assembly;

the sensor being so configured as to generate a signal responsive to brake wear;

an on-board controller coupled to each sensor;

said on-board controller being configured to receive said signal from each sensor and to generate brake wear condition signals accordingly; and

a remote controller coupled to said on-board controller;

said remote controller being configured to receive at least one of a) said sensor signals and b) said break wear condition signals;

said remote controller being so configured as to generate a brake wear history database.

12. A brake wear managing system as recited in claim 11, wherein said remote controller is coupled to said on-board controller via a wireless communication system.

13. A brake wear managing system as recited in claim 12, wherein said wireless communication system is connected to a GPS transmission unit to allow remote monitoring of the geographic position of the vehicle.

14. A brake wear managing system as recited in claim 12, wherein said wireless communication system includes a radio transceiver.

15. A brake wear managing system as recited in claim 11, wherein said remote controller is coupled to said on-board controller via a data cable.

16. A brake wear managing system as recited in claim 11, wherein said remote controller is in the form of a computer.

17. A brake wear managing system as recited in claim 11, wherein said remote controller is further connected to a computer network.

18. A brake wear managing system as recited in claim 11, wherein said remote controller is programmed with a user interface.

19. A brake wear managing system as recited in claim 11, wherein said remote controller is configured to be operated in maintenance mode allowing said remote controller to send signals to said at least sensor assembly to verify the operating conditions thereof.

20. A brake wear managing system as recited in claim 11, wherein said remote controller is configured to be operated in operation mode, wherein said remote controller is configured to do at least one of computing brake wear forecasts, scheduling of brake maintenance, dispatching of vehicles in a fleet, storing brake wear condition data, creating a historical database and preparing statistical analysis on said at least one brake assembly.

21. A brake wear managing system for a vehicle provided with at least one brake assembly, said brake wear managing system comprising:

at least one sensing assembly including sensing means and mounting means to secure said sensor to one of the at least one brake assembly;

the sensing means being so configured as to generate a signal responsive to brake wear;

an on-board controlling means coupled to each sensing means;

said on-board controlling means being configured to receive said signal from each sensing means and to generate brake wear condition signals accordingly; and

a remote controlling means coupled to said on-board controller;

said remote controlling means being configured to receive at least one of a) said sensor signals and b) said break wear condition signals;

said remote controlling means being so configured as to generate a brake wear history database.