EP4532272A1 - Betätigungseinrichtung für ein bremssystem - Google Patents
Betätigungseinrichtung für ein bremssystemInfo
- Publication number
- EP4532272A1 EP4532272A1 EP23728066.4A EP23728066A EP4532272A1 EP 4532272 A1 EP4532272 A1 EP 4532272A1 EP 23728066 A EP23728066 A EP 23728066A EP 4532272 A1 EP4532272 A1 EP 4532272A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sensor
- actuating device
- sensor part
- pressure force
- force transmitter
- 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.)
- Pending
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
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/04—Brake-action initiating means for personal initiation foot actuated
- B60T7/042—Brake-action initiating means for personal initiation foot actuated by electrical means, e.g. using travel or force sensors
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- 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
- B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
- B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
- B60T11/16—Master control, e.g. master cylinders
- B60T11/18—Connection thereof to initiating means
-
- 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
- B60T13/745—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 a hydraulic system, e.g. a master cylinder
-
- 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
- B60T2220/00—Monitoring, detecting driver behaviour; Signalling thereof; Counteracting thereof
- B60T2220/04—Pedal travel sensor, stroke sensor; Sensing brake request
Definitions
- a hydraulic brake system of a motor vehicle typically has several friction brake devices that are hydraulically connected to a master brake cylinder of the brake system. If the master brake cylinder is actuated, a hydraulic fluid is displaced into the slave cylinder of the friction brake devices, so that the friction brake devices then generate a friction brake torque.
- An actuating device is typically present to actuate the master brake cylinder. With the increasing electrification of motor vehicles, actuating devices of braking systems are also becoming increasingly electrified.
- An actuating device of the type mentioned is known, for example, from the published patent application DE 10 2019 203 511 A1.
- the actuating device has a gear device with a slidably mounted Gear element.
- the transmission device can be driven by an electric motor of the actuating device.
- the carrier element is frame-shaped and that the first and second sensor parts are slidably mounted in a frame opening of the carrier element.
- the first and second are stored in the frame opening Sensor part protected from damage by the carrier element.
- the frame-shaped support element has two first legs aligned in the direction of displacement of the sensor units and two second legs aligned perpendicular to the direction of displacement, so that the frame is rectangular in shape.
- the sensor parts are particularly preferably mounted in a displaceable manner by the first legs of the frame-shaped support element. The first legs therefore contribute to the storage of the sensor parts.
- At least one, in particular metallic, guide rod is attached to the carrier element, and that the first sensor part and the second sensor part are mounted so that they can be displaced by the guide rod.
- the guide rod achieves a particularly robust mechanical storage of the first sensor part and the second sensor part.
- the first and second sensor parts are plugged or pushed onto the guide rod.
- a plurality of guide rods arranged parallel to one another are attached to the support element, in which case the first sensor part and the second sensor part are then slidably mounted by the plurality of guide rods.
- the senor is inserted into an opening in a casing wall of the housing.
- both the mechanical coupling of the first sensor part and the second sensor part with the pressure force transmitter or the gear element as well as an electrical connection to a control device arranged outside the housing can be implemented in a technically simple manner.
- the sensor is preferably inserted into the opening in such a way that the first sensor part and the second sensor part face an interior of the housing.
- the first driver element is fastened to the first sensor part by a latching connection or a clamping connection.
- a latching connection or a clamping connection can be easily produced when installing the sensor in the actuating device, for example by plugging together the first driver element and the first sensor part.
- the latching connection or the clamping connection are designed to be detachable. This has the advantage that the sensor can be easily replaced.
- the second driver element is attached to the second sensor part by a particularly releasable latching connection or a particularly releasable clamping connection.
- the senor has a circuit board on the carrier element, on which at least one receiver coil is formed.
- the receiver coil is therefore formed by conductor tracks on the circuit board.
- Such a design of the receiver coil can be implemented in a technically simple and cost-effective manner.
- the electrical connection of the circuit board or the receiver coil for example to a control device, is simplified. If the circuit board or the receiver coil were slidably mounted on the carrier element, the electrical connection to the control unit would at least be more difficult.
- the receiver coil can be used to achieve contactless detection of the sliding position of the first sensor part and the second sensor part.
- the sensor is preferably designed as an inductive sensor.
- the circuit board particularly preferably has a transmitter coil and two receiver coils.
- the circuit board has at least one electrically conductive contact plate for electrical contact with a control device.
- Such contact plates can be contacted in a technically simple manner, for example using electrically conductive contact springs on the control unit side.
- the sensor preferably has a transmitter coil and two receiver coils.
- the circuit board then preferably has six electrically conductive contact plates, with each of the coils being assigned two of the contact plates.
- the contact plates are particularly preferably arranged in a row one behind the other.
- the first sensor part has an electrically conductive material and is arranged such that an electrical voltage of the receiver coil can be influenced by a sliding position of the first sensor part, and / or that the second sensor part has an electrically conductive material and such it is arranged that the electrical voltage of the receiver coil can be influenced by a sliding position of the second sensor part.
- the first and/or the second sensor part each have a base body made of plastic, with the electrically conductive material being arranged on a side of the base body facing the receiver coil.
- a master brake cylinder 10 is arranged on one end face of the housing 3, in which two hydraulic pistons 11 are slidably mounted. If the actuating device 1 is installed as intended in the brake system 2, the master brake cylinder 10 is fluidly connected to slave cylinders of friction brake devices of the brake system 2.
- the actuating device 1 also has a pressure force transmitter 20 which is displaceably mounted relative to the gear element 13, the pressure force transmitter 20 also being arranged at least partially in the housing 3.
- the pressure force transmitter 20 is displaceable in the first direction 14 and in the second direction 15.
- the pressure force transmitter 20 is mounted in an opening 21 in the transmission element 13.
- the pressure force transmitter 20 is designed in several parts.
- the pressure force transmitter 20 has a rod-shaped section 22 which is arranged in the opening 21.
- the pressure force transmitter has a pressure cap 23, which is arranged at an end of the pressure force transmitter 20 facing the master brake cylinder 10.
- the pressure cap 23 is attached to the rod-shaped section 22, in the present case by crimping.
- the first driver element 45 and the holding structure 47 are shaped such that the holding structure 47 exerts a clamping force on the first driver element 45.
- the first driver element 45 is held in the holding structure 47 by the clamping force.
- the first driver element 45 can be pulled out of the holding structure 47 in order to release the positive connection 46.
- the first positive connection 46 is therefore designed as a releasable clamp connection 46.
- a second driver element 48 attached to the gear element 13 is operatively connected to the second sensor part 33 by a second positive connection 49 in such a way that the second sensor part 33 can be moved along with the gear element 13.
- the second driver element 48 is formed in one piece with the anti-rotation element 19, so that the second driver element 48 is indirectly attached to the gear element 13.
- the gear element 13 itself is not shown in Figure 5 for reasons of clarity.
- the second positive connection 49 is formed in that the second driver element 48 is inserted into a fork-shaped holding structure 50 of the second sensor part 33.
- the second driver element 48 and the holding structure 50 are shaped such that the holding structure 50 exerts a clamping force on the second driver element 48.
- the second driver element 48 is held in the holding structure 50 by the clamping force.
- the second positive connection 49 is therefore designed as a releasable clamp connection 49.
- the first and/or the second positive connection 46, 49 are preferably designed as a releasable locking connection.
- the sensor 30 is fastened to the housing 3 by two fastening means 52, which are designed as screws 52.
- the control device 9 is arranged in such a way that it covers the sensor 30.
- a jacket wall 53 of a control unit housing 54 of the control unit 9 has an opening, which cannot be seen in FIG. 7, in which the sensor 30 is arranged.
- the circuit board 38 therefore faces directly toward the interior of the control unit housing 54.
- the control unit 9 is electrically connected to the circuit board 38 through the contact plates 42.
- the control device 9 has a number of electrically conductive contact springs corresponding to the number of contact plates 42, the contact springs not being visible in the figures. Each of the contact springs is in contact with a different one of the contact plates 42.
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
- Measuring Fluid Pressure (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
- Braking Systems And Boosters (AREA)
- Braking Elements And Transmission Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022205435.0A DE102022205435A1 (de) | 2022-05-30 | 2022-05-30 | Betätigungseinrichtung für ein Bremssystem |
| PCT/EP2023/064030 WO2023232621A1 (de) | 2022-05-30 | 2023-05-25 | Betätigungseinrichtung für ein bremssystem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4532272A1 true EP4532272A1 (de) | 2025-04-09 |
Family
ID=86657702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23728066.4A Pending EP4532272A1 (de) | 2022-05-30 | 2023-05-25 | Betätigungseinrichtung für ein bremssystem |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP4532272A1 (de) |
| JP (1) | JP2025518421A (de) |
| KR (1) | KR20250018154A (de) |
| CN (1) | CN119403709A (de) |
| DE (1) | DE102022205435A1 (de) |
| WO (1) | WO2023232621A1 (de) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017059693A (ja) * | 2015-09-17 | 2017-03-23 | 日立オートモティブシステムズ株式会社 | 電子制御装置 |
| JP6698463B2 (ja) * | 2016-07-27 | 2020-05-27 | 日立オートモティブシステムズ株式会社 | 電動倍力装置 |
| US10239506B2 (en) * | 2017-06-30 | 2019-03-26 | Veoneer Nissin Brake Systems Japan Co., Ltd. | System and method for sensing pedal rod to piston rod gap in a brake boost assist system of a master cylinder |
| DE102019203511A1 (de) | 2019-03-15 | 2020-09-17 | Robert Bosch Gmbh | Betätigungseinrichtung für eine Bremsanlage |
| DE102019204561A1 (de) * | 2019-04-01 | 2020-10-01 | Robert Bosch Gmbh | Betätigungseinrichtung für eine Bremsanlage |
-
2022
- 2022-05-30 DE DE102022205435.0A patent/DE102022205435A1/de active Pending
-
2023
- 2023-05-25 KR KR1020247042254A patent/KR20250018154A/ko active Pending
- 2023-05-25 CN CN202380043399.9A patent/CN119403709A/zh active Pending
- 2023-05-25 EP EP23728066.4A patent/EP4532272A1/de active Pending
- 2023-05-25 WO PCT/EP2023/064030 patent/WO2023232621A1/de not_active Ceased
- 2023-05-25 JP JP2024570478A patent/JP2025518421A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102022205435A1 (de) | 2023-11-30 |
| WO2023232621A1 (de) | 2023-12-07 |
| CN119403709A (zh) | 2025-02-07 |
| KR20250018154A (ko) | 2025-02-04 |
| JP2025518421A (ja) | 2025-06-16 |
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