• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a method of trapping particles rejected by friction brake members (2) of a brake system (1, 2) disk (1) of a vehicle. According to the invention, the braking system is equipped with a trapping duct (3) having a shape adapted to house the friction braking members (2) and for channeling, during the running of the vehicle, an air flow cooling said friction brake members, said duct incorporating a shutter (6) flap (6a) positioned upstream of the friction brake members (2), and means (5) for trapping particles rejected by the friction braking members (2). In addition, the shutter (6) is driven so as to move the flap (6a) between a shutter position of the duct (3) controlled for vehicle movement speeds below a predetermined threshold speed Vs, and at least an at least partial opening position of the duct (3) for vehicle movement speeds greater than the threshold speed Vs.
    公开号:FR3048270A1
    申请号:FR1651546
    申请日:2016-02-25
    公开日:2017-09-01
    发明作者:Olivier Metayer
    申请人:Continental Automotive GmbH；Continental Automotive France SAS；
    IPC主号:
    专利说明:

    The invention relates to a method for trapping particles rejected by friction braking members of a vehicle disk braking system. It extends to a trapping device for implementing this trapping method.
    According to recent studies, disc brake pad wear currently accounts for around 20% of the particles emitted by road traffic. During each braking action, the friction between the platelets and the disc cause the rejection of a quantity of fine particles at least as dangerous and harmful, especially for the health of humans, as the particles from the exhaust pipes.
    In addition, these particles are emitted by all types of vehicles (automobiles, trucks, buses, metro, trains, trams ...) and whatever the mode of propulsion of the latter (petrol, diesel, electric engines ...).
    Despite this observation, at present there are no technical solutions that can reliably lead to a significant limitation in the rate of particles emitted by the braking members at an acceptable implementation cost. by friction of the disc brake systems.
    The present invention aims to fill this gap and its main objective is to provide a reliable method and a trapping device leading to a significant limitation of the particles emitted by the friction braking members of the disk braking systems at a cost of implementation. relatively weak work. For this purpose, the invention aims at a process for trapping particles rejected by friction braking members of a vehicle disk braking system, comprising: • equipping said braking system with a trapping: - provided with an upstream air intake face and a downstream air outlet face, and having a shape adapted to accommodate the friction braking members and for channeling, during the running of the vehicle, between the upstream face and the downstream face, a flow of cooling air of said friction braking members, - integrating a shutter flap positioned between the upstream face and the friction braking members, - integrating means for trapping the particles discharged by the friction braking devices, • controlling the shutter so as to move the shutter between a closed position of the controlled duct for vehicle movement speeds of less than a minimum. threshold threshold Vs predetermined, and at least one at least partial opening position of the duct for vehicle movement speeds greater than the threshold speed Vs.
    In the first place, the originality and efficiency of the method according to the invention lies in the fact that they consist in using the dynamic air flow of the vehicle to generate, inside a simple trapping duct, a flow of air cooling the braking system as well as the transport, to trapping means, particles rejected by the friction braking members.
    In addition, this originality and efficiency also result from the presence of the shutter particularly controlled so that the shutter closes the trapping conduit in rolling conditions (low speed or stopping of the vehicle) during which, for lack of flow of air, the particles are likely to escape from the duct by the upstream face of the latter.
    It should be noted, moreover, that especially concerning public transport vehicles, such as buses, metro ..., shutter shutter occurs during the approach phases of a station and when stopping the vehicle, that is to say in busy areas of users.
    In addition to its efficiency and reliability, this trapping method has the advantage of requiring, for its implementation, a simple conduit equipped with a shutter and trapping means, and a shutter connection with a calculator embedded vehicle conventionally equipping the vehicle, particularly adapted to read the speed of said vehicle.
    According to an advantageous embodiment of the invention, during the movement of the vehicle at speeds above the threshold speed Vs and below a predetermined ceiling speed Vp, the shutter is piloted so as to position the shutter in a position maximum opening for said ceiling speed Vp vehicle displacement, and in partial opening positions determining changes in the cooling air flow rate proportional to the vehicle speed variations, for vehicle travel speeds between the threshold speed Vs and the ceiling speed Vp.
    Moreover, for vehicle movement speeds higher than the ceiling speed Vp, the shutter is advantageously controlled according to the invention so as to position the flap in a predetermined partial opening position of the duct.
    This specificity leads to reducing in the trapping duct, beyond a predetermined ceiling velocity Vp, the turbulence likely to disturb the entrapment of the particles.
    In addition, when moving the vehicle at speeds above the threshold speed Vs and below the ceiling speed Vp, the shutter is advantageously controlled according to the invention so as to position the shutter in a position of maximum opening. during at least one deceleration ΔΝ // ΔΤ greater than a predetermined threshold.
    This pilot phase leads to favor the creation of a large flow of cooling air to satisfy, during strong deceleration resulting from significant braking, the braking heat and increased channeling of the emitted particles.
    According to another advantageous embodiment of the invention, trapping means composed of filtering members of conjugated dimensions of the section of said duct, arranged between the friction braking members, are integrated in the duct. the downstream face.
    In addition, these filtering members are advantageously according to the invention in the form of a removable and interchangeable cassette. The invention extends to a trapping device comprising: a trapping pipe having an upstream air inlet face and a downstream air outlet face, and having a shape adapted to house the traps; friction braking members and for channeling, between the upstream face and the downstream face, a flow of cooling air of said friction braking members, said duct incorporating: a shutter with a flap adapted to be positioned between the face upstream and the friction braking members; - means for trapping the particles rejected by the friction braking members; • a shutter control unit programmed to move the shutter between a closed position of the controlled duct for vehicle traveling speeds lower than a predetermined threshold speed Vs, and at least one at least partial opening position of the conduit for higher vehicle traveling speeds The invention will be further described in the following detailed description with reference to the accompanying drawings which, by way of nonlimiting example, show a preferred embodiment of the invention. In this drawing: - the single figure 1 is a schematic perspective view of a trapping device according to the invention equipping a disk brake system.
    The trapping device according to the invention shown in FIG. 1 is designed to trap the particles rejected by the friction braking members of a braking system of the type, as represented in FIG. 1, comprising a disk 1 and a stirrup 2 for moving pads or lining so as to bring them into contact with the disc 1. (For the sake of clarity and simplification of the description which follows, this trapping device is considered mounted on a braking system fitted to a vehicle moving forward in the direction "d" shown in Figure 1.)
    This trapping device comprises a trapping duct 3 of section, in the rectangular example, adapted to house the stirrup 2, and thus prevent the scattering of particles emitted by the pads or linings during braking phases of the vehicle.
    This trapping duct 3 has the general shape of a "question mark" and comprises, firstly, a curved section 3c of curvature conjugate with that of the disc 1 and the stirrup 2, adapted to accommodate the said stirrup, this curved section 3c opening into the air by an end face 3a extending orthogonally with respect to the axis "d", constituting the upstream face 3a of air inlet in said duct. Opposite the upstream face 3a, the trapping conduit 3 comprises a rectilinear end section 3d opening into the air by an end face 3b constituting the downstream air outlet face of said duct.
    This rectilinear section 3c furthermore houses a system of insertion slides 4, in the trapping duct 3, of a cassette 5 of flat dimensions conjugated with those of said duct, made of a material adapted to ensure the trapping of particles rejected by wafers or pads.
    The trapping duct 3 includes, in addition, a shutter 6 with a flap 6a positioned between the upstream face 3a and the yoke 2, controlled by an on-board computer 7 adapted in particular to read the speed of the vehicle.
    This control of the shutter 6 mainly consists of: a / for vehicle movement speeds lower than a predetermined threshold speed Vs, including a zero speed, to command the closure of the flap 6a, b / for higher vehicle movement speeds at the threshold speed Vs and below a predetermined ceiling speed Vp, controlling the shutter 6 so as to position the flap 6a in a maximum open position for said ceiling speed Vp, and in partially open positions determining variations in the cooling air flow proportional to the vehicle speed variations, for vehicle movement speeds between the threshold speed Vs and the ceiling speed Vp, cl for vehicle movement speeds higher than the ceiling speed Vp to control the shutter 6 so as to position the flap 6a in a predetermined open position it trapping conduit 3, so as to reduce turbulence likely to disturb the trapping of particles.
    In addition, when b / Vs <V <Vp, and during at least one deceleration ΔΝ // ΔΤ greater than a predetermined threshold, the shutter 6 is piloted so as to position the flap 6a in a maximum open position in order to satisfy the thermal braking and increased channeling of the emitted particles. By way of example, the threshold speed Vs below which the flap 6a is closed is equal to 30 km / h, and the ceiling speed Vp is equal to 130 km / h.
    The method and the trapping device according to the invention described above lead to a significant limitation of the particles emitted by the friction braking members of the disk braking systems at a relatively low implementation cost.
    权利要求:
    Claims (9)
    [1" id="c-fr-0001]
    1. A method of trapping particles rejected by friction brake members (2) of a brake system (1,2) disc (1) of a vehicle, characterized in that it consists: • to equip said braking system (1,2) of a trapping pipe (3): - provided with an upstream face (3a) of air inlet and a downstream face (3b) of air outlet , and having a shape adapted to accommodate the friction braking members (2) and for channeling, during the rolling of the vehicle, between the upstream face (3a) and the downstream face (3b), a cooling air flow of the said friction braking members, - integrating a shutter (6) with flap (6a) positioned between the upstream face (3a) and the friction braking members (2), - integrating means (5) for trapping rejected particles. by the friction brake means (2), • controlling the shutter (6) so as to move the flap (6a) between a closed position of the duct (3) controlled for vehicle movement speeds below a predetermined threshold speed Vs, and at least one at least partial opening position of the duct (3) for vehicle movement speeds greater than the threshold speed Vs.
    [2" id="c-fr-0002]
    2. Trapping method according to claim 1 characterized in that, during the movement of the vehicle at speeds above the threshold speed Vs and below a predetermined ceiling speed Vp, the shutter (6) is piloted so as to position the vehicle. flap (6a) in a maximum open position for said vehicle displacement ceiling speed Vp, and in partial opening positions determining variations in the cooling air flow rate proportional to the vehicle speed variations, for vehicle traveling speeds between the threshold speed Vs and the ceiling speed Vp.
    [3" id="c-fr-0003]
    3. trapping process according to claim 2 characterized in that, for vehicle movement speeds greater than the ceiling speed Vp, the shutter (6) is piloted so as to position the flap (6a) in a predetermined position of partial opening of the duct (3).
    [4" id="c-fr-0004]
    4. Trapping method according to one of claims 2 or 3 characterized in that, during the movement of the vehicle at speeds above the threshold speed Vs and lower than the ceiling speed Vp, the shutter (6) of in order to position the flap (6a) in a position of maximum opening during at least one deceleration Δν / ΔΤ greater than a predetermined threshold.
    [5" id="c-fr-0005]
    5. trapping process according to one of the preceding claims characterized in that it incorporates in the conduit (3) trapping means composed of filtering members (5) of conjugate dimensions of the section of said duct arranged between the friction brake members (2) and the downstream face (3b).
    [6" id="c-fr-0006]
    6. trapping process according to claim 5 characterized in that the filtering members are in the form of a cassette (5) removable and interchangeable.
    [7" id="c-fr-0007]
    7. Device for trapping particles rejected by friction braking members (2) of a brake system (1,2) with disc (1) of a vehicle, characterized in that it comprises: • a duct trapping device (3) having an upstream air inlet face (3a) and an air outlet downstream face (3b), and having a shape adapted to house the friction brake members (2 ) and for channeling, between the upstream face (3a) and the downstream face (3b), a flow of cooling air of said friction braking members, said duct incorporating: - a shutter (6) with a flap (6a) ) adapted to be positioned between the upstream face (3a) and the friction braking members (2), - means (5) for trapping the particles rejected by the friction braking members (2), • a unit (7) ) shutter control (6) programmed to move the flap (6a) between a shutter position of the duct (3) controlled for speeds of d placement of the vehicle lower than a predetermined threshold velocity Vs, and at least one open position at least part of the conduit (3) for movement of the vehicle speeds above the threshold speed Vs.
    [8" id="c-fr-0008]
    8. trapping device according to claim 7 characterized in that the trapping means are composed of filtering members (5) of conjugate dimensions of the duct section, adapted to be arranged between the friction braking members (2). and the downstream face (3b).
    [9" id="c-fr-0009]
    9. Trapping process according to claim 8 characterized in that the filtering members consist of a cassette (5) removable and interchangeable.
    类似技术:
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    同族专利:
    公开号 | 公开日
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    CN107117141A|2017-09-01|
    US20170248180A1|2017-08-31|
    US10072716B2|2018-09-11|
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    法律状态:
    2017-02-17| PLFP| Fee payment|Year of fee payment: 2 |
    2017-09-01| PLSC| Publication of the preliminary search report|Effective date: 20170901 |
    2018-02-23| PLFP| Fee payment|Year of fee payment: 3 |
    2020-02-19| PLFP| Fee payment|Year of fee payment: 5 |
    2021-02-24| PLFP| Fee payment|Year of fee payment: 6 |
    2021-04-16| TP| Transmission of property|Owner name: CONTINENTAL AUTOMOTIVE FRANCE, FR Effective date: 20210309 Owner name: CONTINENTAL AUTOMOTIVE GMBH, DE Effective date: 20210309 |
    2022-02-11| CA| Change of address|Effective date: 20220103 |
    2022-02-16| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1651546A|FR3048270B1|2016-02-25|2016-02-25|METHOD AND DEVICE FOR TRAPPING PARTICLES REJECTED BY FRICTION BRAKING DEVICES OF A DISC BRAKING SYSTEM|
    FR1651546|2016-02-25|FR1651546A| FR3048270B1|2016-02-25|2016-02-25|METHOD AND DEVICE FOR TRAPPING PARTICLES REJECTED BY FRICTION BRAKING DEVICES OF A DISC BRAKING SYSTEM|
    US15/441,509| US10072716B2|2016-02-25|2017-02-24|Method and device for capturing particles ejected by the friction braking elements of a disk brake system|
    CN201710103428.2A| CN107117141B|2016-02-25|2017-02-24|Method and apparatus for capturing the particle by the frictional brake element injection of disk braking system|
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