METHOD AND DEVICE FOR DETERMINING THE THICKNESS OF A BRAKE DISK

• US 20160265911A1
• Filed: 09/30/2014
• Published: 09/15/2016
• Est. Priority Date: 10/31/2013
• Status: Active Grant

• Current Assignee: Beissbarth GmbH (Robert Bosch GmbH)
• Original Assignee: Robert Bosch GmbH
• Inventors: Malmsheimer, Roger
• Granted Patent: US 9,983,000 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• 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 66/02 Apparatus for indicating wear
• CPC Class Codes: F16D 66/028 with non-electrical sensors or signal transmission, e.g. magnetic, optical
• CPC Class Codes: G01B 17/02 for measuring thickness
• CPC Class Codes: G01M 17/013 Wheels

Abstract

A method for determining the thickness of a brake disk of a pneumatic-tired vehicle, in particular a passenger vehicle or a commercial vehicle, including the steps of applying an ultrasonic measuring head on the brake disk, without dismounting the wheel associated with the brake disk; and carrying out an ultrasonic measurement for determining the thickness of the brake disk.

Claims

1-10. -10. (canceled)

11. A method for determining the thickness of a brake disk of a pneumatic-tired vehicle, the method comprising:

applying an ultrasonic measuring head to the brake disk, a wheel associated with the brake disk being mounted on the vehicle; and

carrying out an ultrasonic measurement for determining the thickness of the brake disk.

12. The method as recited in claim 11, wherein the vehicle is a passenger vehicle or a commercial vehicle.

13. The method as recited in claim 11, further comprising:

guiding the ultrasonic measuring head through an opening in a rim of a wheel associated with the brake disk to be measured.

14. The method as recited in claim 11, wherein the method is carried out on a vehicle standing on the ground.

15. The method as recited in claim 11, wherein the method further comprises:

outputting a visual or acoustic warning when the thickness of the brake disk (4) drops below a predefined value.

16. The method as recited in claim 11, wherein the method further comprises:

outputting a signal when the ultrasonic measuring head is applied correctly to the brake disk.

17. A device for determining the thickness of a brake disk of a pneumatic-tired vehicle, the device comprising:

an ultrasonic measuring head designed in such a way that it may be guided through an opening which is formed in a rim of a wheel of the vehicle and may be attached to a brake disk of the vehicle associated with the wheel.

18. The device as recited in claim 17, wherein the vehicle is a passenger vehicle or a commercial vehicle.

19. The device as recited in claim 17, wherein the ultrasonic measuring head is designed in such a way that, in brake disks including at least two brake disk plates which are interconnected by webs, it detects at least one of the webs and takes it into account in determining the thickness of the brake disk.

20. The device as recited in claim 17, wherein the device further comprises:

at least one of;

i) an evaluation unit, and ii) a display unit, connected to the ultrasonic measuring head by a wireless or hardwired data link.

21. The device as recited in claim 20, wherein the device includes a warning device, which is designed to output a visual or acoustic warning when the thickness of the brake disk determined by the device drops below a predefined value.

22. The device as recited in claim 17, wherein the ultrasonic measuring head includes at least one sensor which is designed to detect whether the ultrasonic measuring head is positioned properly on the brake disk.