EP3433146A1 - Fahrzeugbremse und bremssystem - Google Patents
Fahrzeugbremse und bremssystemInfo
- Publication number
- EP3433146A1 EP3433146A1 EP17712997.0A EP17712997A EP3433146A1 EP 3433146 A1 EP3433146 A1 EP 3433146A1 EP 17712997 A EP17712997 A EP 17712997A EP 3433146 A1 EP3433146 A1 EP 3433146A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vehicle brake
- brake
- control unit
- vehicle
- electronic
- 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.)
- Withdrawn
Links
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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
-
- 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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/662—Electrical control in fluid-pressure brake systems characterised by specified functions of the control system components
-
- 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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
- B60T13/741—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive acting on an ultimate actuator
-
- 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
-
- 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
-
- 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
- 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
-
- 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
- B60T2270/00—Further aspects of brake control systems not otherwise provided for
- B60T2270/40—Failsafe aspects of brake control systems
- B60T2270/406—Test-mode; Self-diagnosis
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D2066/005—Force, torque, stress or strain
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D2066/006—Arrangements for monitoring working conditions, e.g. wear, temperature without direct measurement of the quantity monitored, e.g. wear or temperature calculated form force and duration of braking
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D66/02—Apparatus for indicating wear
- F16D66/021—Apparatus for indicating wear using electrical detection or indication means
Definitions
- the present invention relates to a vehicle brake, in particular a disc brake or drum brake of a motor vehicle, in particular a commercial vehicle according to the preamble of claim 1 and a brake system with such a vehicle brake.
- Vehicle brakes especially those of commercial vehicles such as pneumatic disc brakes, are often sold in the market as refurbished replacement parts.
- the high material value contained in a discarded vehicle brake as well as the effort required to produce the vehicle brake are further utilized in order to be able to offer a cheaper alternative to a completely newly manufactured replacement part.
- the problem with the use of such used vehicle brake components to be able to assess these components in terms of their further usability. So it is particularly important for a safety-relevant component of the utmost importance that the function and reliability of the reconditioned component is not affected by the previous use and any resulting damage or the utilization of estimated for this component life.
- the disassembled parts are cleaned again and then re-inspected for possible damage.
- These selected components may be classified according to pre-determined criteria such as wear limits. If necessary, the components are sent to a refurbishment. Subsequently, the assembly of the components to a vehicle brake, which, if necessary, and new components are installed. The reassembled vehicle brake is then subjected to a functional test and finally marked as refurbished product.
- the critical step in this approach is to select the reusable components in terms of their expected remaining life.
- This assessment is carried out according to various criteria such as damage, deformation, corrosion or wear, which are checked visually or by means of technical aids such as a survey, fluoroscopy or crack detection.
- This inspection allows components with clearly identifiable damage to be identified and sorted out. Depending on the damage, such components may also be fed to a work-up and subsequently reused. However, it is not possible to determine or estimate the remaining useful life of such components. While for components of low value for security reasons instead of further use, replacement with a new part is preferred, this represents a decisive economic problem for components with high material or production costs.
- the proportion of the manufacturing cost of a vehicle brake caliper of a pneumatic disc brake is so large that the replacement of the caliper would make the processing of the affected vehicle brake altogether uneconomical by a newly manufactured caliper.
- Object of the present invention is therefore to provide a vehicle brake, with which the problem of estimating the remaining life of the components of the vehicle brake is possible.
- the vehicle brake according to the invention has an application device
- Brake pads an electronic control unit with a control assembly for controlling a braking operation of the vehicle brake and a memory for storing characteristics of the components of the vehicle brake and recorded in vehicle operation operating data.
- the vehicle brake has according to the invention at least one further arranged on a component of the vehicle brake electronic memory element which is connected to the electronic control unit.
- the electronic control unit is designed such that for the lifetime of the component on which the electronic memory element is arranged, relevant operating data in vehicle operation can be stored and updated on the electronic memory element.
- relevant operating data in vehicle operation can be stored and updated on the electronic memory element.
- the data relevant to the life of the component such as, for example, the duration of the previous use of the component, the number of clamping operations performed and the like on the memory element.
- these data can be read out before the installation of the relevant component in a vehicle brake composed of at least partly used components and, on the other hand, be read out in the electronic control unit of a vehicle brake with partially used components and taken into account in the brake control.
- the electronic memory element consists of a chip containing a memory and a processor and a signal transmission element.
- the signal transmission element is preferably designed as a wireless receiver element which is connected to the electronic control unit.
- the trained as a wireless receiver element signal transmission element uses as transmission methods in this case preferably WiFi, Bluetooth or NFC.
- connection of the signal transmission element via an electrical cable to the electronic control unit makes it possible in a simple manner, a transmission of relevant data for each component, which are collected and stored in the electronic control unit and stored, allows.
- the electronic storage element of the caliper is due to its high material and manufacturing costs to call.
- the electronic memory element is mounted on the board of a wear detection system, which is connected to the electronic control unit.
- a wear sensor of the wear detection system is usually attached to the caliper.
- a sensor element detecting a voltage is attached to the application device, which sensor element is connected to the electronic control unit. With this sensor element, the number of Zuspannvorlandais done by the electronic control unit can be detected and transferred to the attached to the application device electronic storage element.
- a pressure sensor is arranged on a plunger of a brake cylinder of the vehicle brake, with which the actuating force of the plunger can be detected. It is also conceivable arrangement of a pressure sensor in the region of the brake pads for detecting the pressure load. The measured data are transmitted to the electronic control unit and transmitted from there to the electronic memory element.
- the values determined with this sensor are coupled in the electronic control unit according to a preferred embodiment with the signal of the wear potentiometer, thereby making use of the possibility of combining different characteristic curves stored in the electronic control unit for different brake linings determine the remaining service life with the measured pressure load.
- the pressure sensor is preferably designed as a piezoelectric element. Also conceivable is the design of the pressure sensor, for example, as a strain gauge, which is mounted in a deformation-sensitive region of the component.
- a plurality of pressure A / erformungskennlinien are preferably stored in the memory of the electronic control unit of the vehicle brake, so that in the detection of deformations of a component of the vehicle brake by a deformation of the component measuring measuring unit based on these pressure-A / erformungskennlinien in the electronic control unit can be evaluated and from which it can be determined which specific properties the respective component has and this information can be forwarded and output as driver information.
- the measuring unit measuring a deformation during a tightening operation is arranged, for example, on a lining retaining bracket which spans a lining shaft of the brake caliper, the deformation of the lining retaining bracket being due to a deformation of the caliper.
- the surface of a component of the vehicle brake, in particular of the brake caliper, subjected to compression or tension is provided with a coating which marks a surface change, in particular a widening or crack formation.
- the coating marking the surface change is preferably in the form of a rice lacquer or a color-changeable material whose color changes as a result of stretching.
- a measuring unit measuring a deformation during a tightening operation is arranged on a component of the vehicle brake subject to pressure or tension, in particular on the brake caliper.
- the value measured by the measuring unit is preferably first detected and stored in the electronic control unit and then transmitted to the relevant electronic storage element. Also conceivable is a direct transmission from the measuring unit into the electronic memory element.
- the measuring unit is preferably designed as a resistance measuring device.
- the brake system according to the invention with a vehicle brake as described above is characterized by an interpretation such that life-time-specific data on the electronic unit of the vehicle brake can be further processed by a control unit of the vehicle brake system.
- the data include life-specific parameters such as at least the number of Zuspannvor réelle done during operation and / or component shape changes that affect the life of the respective component.
- the control unit of the vehicle brake system is preferably designed such that the built-in vehicle brake electronic memory elements are interrogated by the control unit.
- the queried data can be further processed in such a way that the control unit outputs a positive or negative status message of the components to which the electronic memory elements are attached, depending on the detected life-time-specific parameters stored in the electronic memory elements, to an output unit of the brake system.
- the control unit outputs a positive or negative status message of the components to which the electronic memory elements are attached, depending on the detected life-time-specific parameters stored in the electronic memory elements, to an output unit of the brake system.
- the control unit outputs a positive or negative status message of the components to which the electronic memory elements are attached, depending on the detected life-time-specific parameters stored in the electronic memory elements, to an output unit of the brake system.
- the control unit outputs a positive or negative status message of the components to which the electronic memory elements are attached, depending on the detected life-time-specific parameters stored in the electronic memory elements, to an output unit of the brake system.
- one Display in the cab of a commercial vehicle such as a warning light in the dashboard.
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2017/056912 WO2017186417A1 (de) | 2016-03-21 | 2017-03-23 | Fahrzeugbremse und bremssystem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3433146A1 true EP3433146A1 (de) | 2019-01-30 |
Family
ID=65012629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17712997.0A Withdrawn EP3433146A1 (de) | 2017-03-23 | 2017-03-23 | Fahrzeugbremse und bremssystem |
Country Status (1)
| Country | Link |
|---|---|
| EP (1) | EP3433146A1 (de) |
-
2017
- 2017-03-23 EP EP17712997.0A patent/EP3433146A1/de not_active Withdrawn
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