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公开(公告)号：US11578772B2
公开(公告)日：2023-02-14
申请号：US16784565
申请日：2020-02-07
发明人： Holger von Hayn , Martin Gädke , Ahmed Sefo , Jens Hoffmann , Uwe Bach , Martin Semsch , Adrian Messner , Ulrike Meyer , Martin Kruse , Wolfgang Ritter , Christian Philipp
摘要： The abutment of a drum brake is formed from a solid material which deforms under load, wherein measurement devices are provided which detect this deformation. The abutment has two limbs, on which the brake shoes are supported. The changing distance between the two brake shoes under load is determined by detecting the distance between extension rods on the limbs by a measurement device comprising magnets and Hall sensors or AMR sensors.
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公开(公告)号：US11248672B2
公开(公告)日：2022-02-15
申请号：US14895299
申请日：2014-06-03
发明人： Uwe Bach , Jens Hoffmann , Niclas Görrissen , Wolfgang Ritter , Ahmed Sefo , Holger von Hayn
IPC分类号： F16D65/16 , F16D65/22 , F16D51/00 , B60T7/08 , B60T7/10 , F16D51/28 , F16D121/24 , F16D125/60
摘要： A drum brake module for motor vehicles, the drum brake module being driven by an electric motor and having at least one parking brake function, includes an electromechanical cable pull actuator which is fastened on the anchor plate with the aid of an adapter. The adapter is designed as a one-piece, thin walled frame having at least one fastening flange for receiving the cable pull actuator and is held in place on the anchor plate.
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公开(公告)号：US20220034377A1
公开(公告)日：2022-02-03
申请号：US17280341
申请日：2019-09-25
发明人： Uwe Bach , Martin Gädke , Holger von Hayn , Ahmed Sefo , Jens Hoffmann , Adrian Messner , Wolfgang Ritter , Falk Petzold , Matthias Schulitz
摘要： The proposal is for an improved expansion device for a drum brake having an integrated readjustment unit having a readjusting screw which can be locked therein by a spring-loaded latching unit which, for a reliable readjustment function with a reduced level of force, provides for the latching unit to allow a defined idle rotation of the readjusting screw, which is defined structurally by a first stop acting in a first direction of revolution and a second stop acting in the opposite direction of revolution.
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公开(公告)号：US20210190159A1
公开(公告)日：2021-06-24
申请号：US16754272
申请日：2018-10-08
发明人： Uwe Bach , Martin Gädke , Holger von Hayn , Ahmed Sefo , Jens Hoffmann , Adrian Messner , Wolfgang Ritter
摘要： An improved electromechanically drivable spreader unit having an integrated adjustment apparatus for a drum brake, in which the linear motion of brake shoe holders is produced by two ball-ramp devices, wherein a first ball-ramp device includes a first actuation piston arranged for rotation about the axis and a second ball-ramp device includes a second actuation piston arranged for rotation about the axis, and wherein an adjustment apparatus for compensating an actuation travel that increases as a result of wear on the friction linings is arranged in an axially centered position within the housing and substantially between the actuation pistons.
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公开(公告)号：US20190092298A1
公开(公告)日：2019-03-28
申请号：US16082802
申请日：2017-05-11
发明人： Uwe Bach , Jens Hoffmann , Martin Gädke , Holger von Hayn , Ahmed Sefo , Adrian Messner , Wolfgang Ritter
摘要： A braking device for a hydraulic motor vehicle braking system having an electromechanically driven booster stage and a ball screw drive. In order to provide a braking device which is of particularly compact, cost-effective and weight-saving construction and has short pedal strokes, and an easily adjustable pedal characteristic curve, at the same time enabling effective direct action in case of failure of the booster stage and comfortable haptic feedback at the pedal during normal operation, the actuating force from a piston rod is introduced into the spindle, wherein the piston rod can be moved axially to a limited extent relative to the spindle and a spring element is inserted in the flow of force of the actuating force between the piston rod and the spindle, which spring is compressed axially when the actuating force is introduced.
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公开(公告)号：US12000446B2
公开(公告)日：2024-06-04
申请号：US17612422
申请日：2020-05-20
发明人： Martin Gädke , Holger von Hayn , Matthias Schulitz , Ahmed Sefo , Uwe Bach , Adrian Messner , Wolfgang Ritter , Jens Hoffmann , Falk Petzold , Martin Kruse , Christian Vey , Ulrike Meyer
CPC分类号： F16D65/22 , F16D51/24 , F16D65/08 , F16D2051/001 , F16D2066/005 , F16D2121/24
摘要： A drum brake having a brake drum, brake shoes, a carrier plate and a load measurement device in the region of an abutment is mountable on a steering knuckle. The abutment has a cylinder in which two pistons are guided, on the outer end faces of which the abutment ends of the brake shoes rest and the inner end faces of which are each supported by a spring on a step in the cylinder. A hollow peg projects from the outside of the cylinder and penetrates an opening in the carrier plate, such that it can be received in a receiving space in the steering knuckle resting on the carrier plate or in a reinforcement element fixed on the steering knuckle.
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公开(公告)号：US20220099149A1
公开(公告)日：2022-03-31
申请号：US17421849
申请日：2020-01-09
发明人： Uwe Bach , Hans-Peter Metzen , Ahmed Sefo , Jens Hoffmann , Manfred Rüffer
IPC分类号： F16D65/10 , F16D65/827
摘要： A pot-shaped composite brake rotor for motor vehicles, which combines at least one securing component as a hub interface with at least one friction ring component (as a friction partner for at least one friction lining. Distinction is made between a torque transmission function a fixing function between the paired components by the provision of a heat-conductive joint interface between the components on one side. The components are assembled coaxially with one another and joined rotationally fixedly in the axial direction so that the securing component serves as a heat sink for the friction ring component. At least one fixing element between the components is provided separately, and this fixing element substantially exclusively (nominal load) performs a fixing function by mutual form fit by a radially directed engagement behind at least one undercut. A press-fit connection s present for torque transmission between the securing component and the friction ring component.
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公开(公告)号：US20220065310A1
公开(公告)日：2022-03-03
申请号：US17415226
申请日：2019-12-17
发明人： Uwe Bach , Christian Vey , Ahmed Sefo , Jens Hoffmann
摘要： For controlling electromechanically actuatable brakes of servo type construction, it is necessary to detect the forces acting on the abutment of the brake shoes. The abutment is therefore formed from a massive material which deforms under load, wherein measurement devices are provided which detect this deformation. The shape of the abutment is selected in such a way that the abutment has measurement gaps, the size of which changes when the abutment is loaded. The size of the measurement gaps can be sensed by means of Hall sensors or AMR sensors, for example.
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公开(公告)号：US10889270B2
公开(公告)日：2021-01-12
申请号：US16317868
申请日：2017-08-08
发明人： Ulrike Meyer , Martin Semsch , Uwe Bach , Jens Hoffmann , Ahmed Sefo , Wolfgang Ritter , Martin Gädke , Holger von Hayn , Adrian Messner
摘要： Differentials having plate packs for exerting a braking torque onto the output shafts of the gear unit are known. The brake device is intended to be designed such that effective braking can be achieved using it and that it is easy to service. To this end, the invention makes provision for the brake device to be a drum brake having a passive element, exhibiting a cylindrical frictional surface, and brake shoes, the frictional surfaces of which brake shoes can be placed against the cylindrical frictional surface of the passive element. The passive element can be a brake drum or a radial brake disk, the cylindrical edge of which serves as a frictional surface. The passive element is fastened to the differential cage and/or one of the shafts. The brake shoes are held in a pivotable manner on a carrier plate fastened to the outside of the differential housing.
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公开(公告)号：US20190232927A1
公开(公告)日：2019-08-01
申请号：US16317868
申请日：2017-08-08
发明人： Ulrike Meyer , Martin Semsch , Uwe Bach , Jens Hoffmann , Ahmed Sefo , Wolfgang Ritter , Martin Gädke , Holger von Hayn , Adrian Messner
摘要： Differentials having plate packs for exerting a braking torque onto the output shafts of the gear unit are known. The brake device is intended to be designed such that effective braking can be achieved using it and that it is easy to service. To this end, the invention makes provision for the brake device to be a drum brake having a passive element, exhibiting a cylindrical frictional surface, and brake shoes, the frictional surfaces of which brake shoes can be placed against the cylindrical frictional surface of the passive element. The passive element can be a brake drum or a radial brake disk, the cylindrical edge of which serves as a frictional surface. The passive element is fastened to the differential cage and/or one of the shafts. The brake shoes are held in a pivotable manner on a carrier plate fastened to the outside of the differential housing.
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