Measuring arrangement for brake application force measurement of a disc brake and a corresponding disc brake
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B60T-017/22
F16D-066/00
B60T-001/06
F16D-055/22
G01L-005/28
출원번호
US-0511929
(2014-10-10)
등록번호
US-9457786
(2016-10-04)
우선권정보
DE-10 2012 007 471 (2012-04-13)
발명자
/ 주소
Baumgartner, Johann
Werth, Alexander
Seidenschwang, Matthias
출원인 / 주소
KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
대리인 / 주소
Crowell & Moring LLP
인용정보
피인용 횟수 :
0인용 특허 :
18
초록▼
A measuring arrangement for brake application force measurement of a disc brake, includes two components of the disc brake which can be displaced relative to each other along a travel path when a brake application force is applied, at least one brake application force sensor with a housing; a measur
A measuring arrangement for brake application force measurement of a disc brake, includes two components of the disc brake which can be displaced relative to each other along a travel path when a brake application force is applied, at least one brake application force sensor with a housing; a measurement object which can be permanently connected to one or the other of the two components and having at least one element or at least one target object which has at least one such element for contact-free interaction with the brake application force measurement sensor; and an evaluation unit. The brake application force sensor is designed for the detection of a displacement of the measurement object along the path with the evaluation unit for the conversion of the detected displacement in a measurement variable as a measurement for the brake application force. The brake application force sensor and the measurement object can be mounted with each of the two components in a removable manner. The measuring arrangement is characterized in that the brake application force sensor is arranged outside the path of the measurement object and with the observation direction thereof arranged perpendicular to the path.
대표청구항▼
1. A measuring arrangement for measuring brake application force in a disc brake, comprising: first and second components of a caliper of the disc brake, the first and second components being at least one of formed by and affixed to the caliper and displaceable relative to one another along a travel
1. A measuring arrangement for measuring brake application force in a disc brake, comprising: first and second components of a caliper of the disc brake, the first and second components being at least one of formed by and affixed to the caliper and displaceable relative to one another along a travel path when brake application force is applied;a brake application force sensor, the brake application force sensor being affixed to a first one of the first and second components of the caliper and including a housing;a measurement object at least one of formed by and affixed to a second one of the first and second components, the measurement object comprising an element configured for contactless interaction with the brake application force sensor;an evaluation unit coupled to the brake application force sensor, wherein:the brake application force sensor is configured to detect the displacement of the measurement object along the travel path due to elastic deformation of the caliper,the evaluation unit is configured to convert the detected displacement into a measurement variable that is a function of the brake application force,the brake application force sensor and the measurement object is attachable to the respective one of the first and second components so as to be removable, andthe brake application force sensor is arranged outside the travel path of the measurement object, wherein an observation direction of the brake application force sensor is at a right angle to the travel path of the measurement object. 2. The measuring arrangement according to claim 1, wherein the element for contactless interaction with the brake application force sensor is made of metal, and the brake application force sensor is an eddy current sensor. 3. The measuring arrangement according to claim 2, wherein the eddy current sensor is a Hall sensor. 4. The measuring arrangement according to claim 2, wherein the eddy current sensor is an inductively operating sensor. 5. The measuring arrangement according to claim 4, wherein the inductively operating sensor comprises at least three coils, wherein difference signals of a second and a third one of the three coils are used to correct interference signals. 6. The measuring arrangement according to claim 1, wherein the element is constructed with a defined contour such that the brake application force sensor picks-up a signal which changes with the displacement travel of the element. 7. The measuring arrangement according to claim 1, wherein the brake application force sensor and the measurement object are attachable to respective ones of the first and second components in a centered and/or positive locking manner so as to be removable. 8. The measuring arrangement according to claim 1, wherein: the brake application force sensor is permanently connected to a respective one of the first and second components and arranged at a distance from the element of the measurement object of the other of the first and second components, andthe one component of the first and second components being a caliper back of a caliper of the disc brake, and the other of the first and second components being a caliper head of the caliper of the disc brake. 9. The measuring arrangement according to claim 1, wherein the brake application force sensor comprises a pick-up device having at least one coil and an amplifier arranged in the housing. 10. The measuring arrangement according to claim 9, where the housing is hermetically sealed. 11. The measuring arrangement according to claim 9, wherein the brake application force sensor is oriented with the coil of the pick-up device being in a pick-up longitudinal axis that is at a right angle to a target object longitudinal axis. 12. The measuring arrangement according to claim 1, wherein an end face of the application force sensor is arranged at a distance from the element of the measurement object. 13. The measuring arrangement according to claim 12, wherein the distance has a value between 0 millimeters and 10 millimeters. 14. The measuring arrangement according to claim 12, wherein the distance has a value between 0.5 millimeters and 6.5 millimeters. 15. The measuring arrangement according to claim 1, wherein the brake application force sensor has a permanently connectable connecting line, said connecting line being couplable to a wear sensor unit. 16. The measuring arrangement according to claim 1, wherein the measurement object is a brake pad holding bracket permanently connectable to one of the first and second components of the disc brake. 17. The measuring arrangement according claim 16, wherein at least one target object is attached to the element of the brake pad holding bracket. 18. The measuring arrangement according to claim 16, wherein at least one target object is formed in one piece with the element of the brake pad holding bracket forming the measurement object. 19. The measuring arrangement according to claim 1, wherein the element has a planar form with a planar face positioned perpendicularly with respect to a pick-up longitudinal axis of the brake application force sensor. 20. A disc brake, comprising: a brake caliper which, in use, engages over a brake disc and comprises a caliper head and a caliper back;brake pads arranged in the disc brake, the brake pads being pressable onto the brake disc;a brake pad holding bracket by which the brake pads are secured radially in the disc brake, the brake pad holding bracket being mounted in the brake caliper;a measuring arrangement for measuring brake application force in the disc brake, the measuring arrangement comprising: (a) first and second components of a caliper of the disc brake, the first and second components being at least one of formed by and affixed to the caliper and displaceable relative to one another along a travel path when brake application force is applied;(b) a brake application force sensor, the brake application force sensor being affixed to a first one of the first and second components of the caliper and including a housing;(c) a measurement object at least one of formed by and affixed to a second one of the first and second components, the measurement object comprising an element configured for contactless interaction with the brake application force sensor;(d) an evaluation unit coupled to the brake application force sensor, wherein:the brake application force sensor is configured to detect the displacement of the measurement object along the travel path due to elastic deformation of the caliper,the evaluation unit is configured to convert the detected displacement into a measurement variable that is a function of the brake application force,the brake application force sensor and the measurement object is attachable to the respective one of the first and second components so as to be removable, andthe brake application force sensor is arranged outside the travel path of the measurement object, wherein an observation direction of the brake application force sensor is at a right angle to the travel path of the measurement object.
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