公开(公告)号：US12065202B2

公开(公告)日：2024-08-20

申请号：US17684530

申请日：2022-03-02

Applicant: ZF Automotive Germany GmbH

Inventor： Eduard Span ,  Frank Jaehde

IPC: B62D5/04 ,  B62D3/12

CPC classification number: B62D5/0421 ,  B62D3/12 ,  B62D5/0442

Abstract: The disclosure relates to an electromechanical rack and pinion steering system for a motor vehicle with an input shaft which is connected to a pinion shaft, wherein a torsion bar is arranged between the input shaft and the pinion shaft, and is directly connected to the input shaft, and the pinion shaft has a steering pinion section for interacting with a rack, and with an electric motor for driving the pinion shaft. The electric motor is connected to the pinion shaft by a transmission. An intermediate shaft piece is arranged between the pinion shaft and the input shaft. The intermediate shaft piece is connected directly to the pinion shaft and connected directly to the torsion bar.

公开(公告)号：US20220281514A1

公开(公告)日：2022-09-08

申请号：US17684530

申请日：2022-03-02

Applicant: ZF Automotive Germany GmbH

Inventor： Eduard Span ,  Frank Jaehde

IPC: B62D5/04 ,  B62D3/12

Abstract: The disclosure relates to an electromechanical rack and pinion steering system for a motor vehicle with an input shaft which is connected to a pinion shaft, wherein a torsion bar is arranged between the input shaft and the pinion shaft, and is directly connected to the input shaft, and the pinion shaft has a steering pinion section for interacting with a rack, and with an electric motor for driving the pinion shaft. The electric motor is connected to the pinion shaft by a transmission. An intermediate shaft piece is arranged between the pinion shaft and the input shaft. The intermediate shaft piece is connected directly to the pinion shaft and connected directly to the torsion bar.

公开(公告)号：US20210146989A1

公开(公告)日：2021-05-20

申请号：US16951229

申请日：2020-11-18

Applicant: ZF Automotive Germany GmbH

Inventor： Eduard Span ,  Timm Leuerer ,  Rolf von Laar ,  Sridharan Krishnan ,  Robert Kolloch

IPC: B62D3/12

Abstract: A rack-and-pinion gear is described, which is suitable in particular for a steering system of a motor vehicle. In this a pinion is supported in a pinion housing and meshes with a rack inside this pinion housing. The rack here projects from the pinion housing through at least one housing aperture. A stop ring, which serves to limit a rack longitudinal movement and/or a tilting of the rack, is moreover held in the housing aperture by means of a press fit. In addition, a steering gear having such a rack-and-pinion gear and a steering system for a motor vehicle comprising such a steering gear are described.

公开(公告)号：US11731685B2

公开(公告)日：2023-08-22

申请号：US16951229

申请日：2020-11-18

Applicant: ZF Automotive Germany GmbH

Inventor： Eduard Span ,  Timm Leuerer ,  Rolf von Laar ,  Sridharan Krishnan ,  Robert Kolloch

IPC: B62D3/12 ,  F16H19/04

CPC classification number: B62D3/126 ,  B62D3/123 ,  F16H2019/046

Abstract: A rack-and-pinion gear is described, which is suitable in particular for a steering system of a motor vehicle. In this a pinion is supported in a pinion housing and meshes with a rack inside this pinion housing. The rack here projects from the pinion housing through at least one housing aperture. A stop ring, which serves to limit a rack longitudinal movement and/or a tilting of the rack, is moreover held in the housing aperture by means of a press fit. In addition, a steering gear having such a rack-and-pinion gear and a steering system for a motor vehicle comprising such a steering gear are described.

公开(公告)号：US20230074605A1

公开(公告)日：2023-03-09

申请号：US17898793

申请日：2022-08-30

Applicant: ZF Automotive Germany GmbH

Inventor： Eduard Span ,  Yavuz Demir ,  Rainer Engel ,  Heinz-Dieter Heitzer

IPC: B62D3/12 ,  B62D5/04

Abstract: An electrically driven rack and pinion steering system of a motor vehicle has an axially displaceably mounted rack which transmits a steering movement for steered wheels of the motor vehicle, has an electric drive which provides a steering force and interacts with the rack, and has a housing which receives the rack and a drive element of the drive. The drive element is in engagement with a toothing system of the rack. A bearing assembly is arranged on a section of the rack without a toothing system axially on each side of the drive element, with a carrier cylinder, on the outer shell face of which an outer contact seal is arranged and on the inner shell face of which an inner contact seal is arranged, the contact seals sealing the housing with respect to the rack.

公开(公告)号：US20210171096A1

公开(公告)日：2021-06-10

申请号：US17113277

申请日：2020-12-07

Applicant: ZF Automotive Germany GmbH

Inventor： Eduard Span ,  Sridharan Krishnan ,  Robert Kolloch

IPC: B62D7/20 ,  F16C17/04

Abstract: A drag link guide assembly for guiding a drag link comprises a slide bushing and a housing enclosing the slide bushing. The housing comprises a socket portion, into which the slide bushing is inserted. The slide bushing comprises a locating area for the drag link having a substantially circular cylindrical periphery with at least one plane torsional locking face. The slide bushing comprises an outward-pointing structure, which interacts with a mating structure that is provided on the internal surface of the housing. A method for producing a drag link guide assembly is furthermore described.

公开(公告)号：US20240149944A1

公开(公告)日：2024-05-09

申请号：US18501397

申请日：2023-11-03

Applicant: ZF Automotive Germany GmbH

Inventor： Eduard Span ,  Rainer Engel ,  Heinz-Dieter Heitzer

IPC: B62D15/02

CPC classification number: B62D15/0225

Abstract: A steering system of a motor vehicle comprises a sensor device comprising a rotational angle sensor, which is connected to a toothed wheel and detects a rotation of the toothed wheel is disclosed. The toothed wheel is fitted on a steering tie rod such that it meshes with a spindle thread on the steering tie rod which is part of a ball screw drive of a servo drive of the steering system.

公开(公告)号：US20230034783A1

公开(公告)日：2023-02-02

申请号：US17871291

申请日：2022-07-22

Applicant: ZF Automotive Germany GmbH

Inventor： Eduard Span

IPC: B62D3/12 ,  B62D5/04 ,  B62D15/02

Abstract: The disclosure relates to a steering device for steering a vehicle, having a housing and having a rack. The rack is movable in the longitudinal direction of the rack and in relation to the housing. The rack has a detection installation for detecting an ingress of water. In order to be able to detect an ingress of water at an early stage, in a reliable manner and/or by an ideally cost-effective detection installation. The steering device includes that the detection installation has at least one friction installation which reacts to an ingress of water. The friction installation, upon reacting to the ingress of water and in the event of a movement of the rack, causing an increase in friction.

公开(公告)号：US20220315094A1

公开(公告)日：2022-10-06

申请号：US17708748

申请日：2022-03-30

Applicant: ZF Automotive Germany GmbH

Inventor： Timm Leuerer ,  Eduard Span ,  Jens Petersen ,  Gregor Watzlawek ,  Frank Jaehde ,  Yavuz Demir ,  Frederick Wilms ,  Ali Al-Jabri

IPC: B62D3/12 ,  B62D5/04

Abstract: The disclosure relates to an electric power steering system having a rack for steering wheels of a vehicle and having a pinion shaft. The pinion shaft meshes with a row of teeth of the rack in an assembled state. The rack has an assembly portion for an initial assembly of the pinion shaft, with one end of the row of teeth transitioning into the assembly portion. On the one hand, to facilitate initial assembly for establishing a connection between the pinion shaft and the row of teeth of the rack and, on the other hand, to prevent the connection between the pinion shaft and the row of teeth of the rack from breaking during repair measures carried out after the initial assembly, the electric power steering system is arranged such that first teeth of the row of teeth each have a first tooth height and the assembly portion has second teeth for interacting with the pinion shaft, the second teeth each having a second tooth height that is less than the first tooth height.

公开(公告)号：US20200324803A1

公开(公告)日：2020-10-15

申请号：US16843745

申请日：2020-04-08

Applicant: ZF Automotive Germany GmbH

Inventor： Sridharan Krishnan ,  Robert Kolloch ,  Eduard Span

IPC: B62D3/12

Abstract: A device for a steering system of a motor vehicle for pressing a toothed rack against a drive pinion is specified, the device having a housing and a thrust piece which is mounted displaceably in the housing and which has a circumferential wall which is in contact with the housing, the thrust piece having, on its circumferential wall, at least one depression which runs in a circumferential direction at least in certain portions and which delimits a hollow chamber arranged between thrust piece and housing.