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公开(公告)号：US20200049593A1
公开(公告)日：2020-02-13
申请号：US16485616
申请日：2017-02-13
发明人： Jens EISENBEISS , Roland BÖSL , Markus KRAMER , Lorenzo ALLEVA
IPC分类号： G01M17/02
摘要： Testing the rolling resistance of a tire is a common procedure in tire testing. The tire testing machine (1) comprises a rolling device (4), a tire mounting device (3) and a driving assembly (2). The driving assembly (2) rotates the rolling device (4) and/or the tire mounting device (3). The rolling device (4) has a drum (5) with an outer peripheral surface (7), while the tire (14) is rotatable mountable on the tire mounting device (3). The tire mounting device (3) is arranged such that the tire (14) engages with the outer peripheral surface (7) of the drum (5). A first torque measuring assembly (12) measures a torque of the drum (5) and a second torque measuring assembly (18) measures a torque of the tire (14). An angular velocity measuring assembly (12) measures and/or calculates the angular velocity of the tire w, and the angular velocity of the drum (ωD).
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公开(公告)号：US20220316989A1
公开(公告)日：2022-10-06
申请号：US17609188
申请日：2020-05-08
发明人： Jens EISENBEISS , Roland BÖSL
摘要： A method and test stand for determining tire properties of a vehicle tire which is rotatably positioned on a rim via a wheel bearing. The interior of vehicle tire is pressurized by a fluid and the vehicle tire is applied with a wheel load. The vehicle tire is accelerated to a final speed in accordance with a pre-determinable speed ramp. The vehicle tire, in accordance with a tire speed, undergoes an oscillation excitation and reacts to the oscillation excitation with an oscillation. The method includes continuously capturing an effective tire force of the vehicle tire in the wheel bearing, due to the oscillation, and creating a data set which shows the tire force over the tire speed and tire frequency, by applying a timing signal of the speed ramp to a Fourier transformation.
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3.发明申请公开(公告)号：US20190204186A1
公开(公告)日：2019-07-04
申请号：US16311854
申请日：2017-05-22
发明人： Jens EISENBEISS
IPC分类号： G01M17/02
CPC分类号： G01M17/022 , G01M17/013
摘要： A running drum arrangement for a tire testing stand having a running drum. The running drum defines an axis of rotation. The running drum has at least one fastener mount and the fastener mount defines a main axis. At least one impact strip is arranged on a radial outer side of the running drum with respect to the axis of rotation. At least one fastener fastens the impact strip to the running drum and the fastener is received in the fastener mount. The running drum arrangement has at least one molded piece. The molded piece is arranged between the running drum and the impact strip. The molded piece forms a form fit, with the running drum and with the impact strip, in a circumferential direction with respect to the axis of rotation.
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公开(公告)号：US20190204185A1
公开(公告)日：2019-07-04
申请号：US16305494
申请日：2017-04-27
发明人： Roland BÖSL , Wolfgang SAXINGER , Jens EISENBEISS
IPC分类号： G01M17/02
CPC分类号： G01M17/022
摘要： A test system for testing a rolling resistance of a vehicle tire, with a measurement device. The measurement device has a load device that includes a load roller which applies a test load on the tire. The measurement device has a receiving device which receives the tire. The receiving device and the load device can be moved relative to one another. The measurement device has a drive device which rotationally drives at least one of the load roller and the receiving device. The measurement device has at least one test configuration for measuring the rolling resistance. The receiving device has first and second rim elements that together form a split rim engagement unit for accommodating the tire.
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公开(公告)号：US20180372568A1
公开(公告)日：2018-12-27
申请号：US15781762
申请日：2016-11-08
发明人： Jens EISENBEISS , Roland BÖSL
摘要： A wheel-force dynamometer (1) for the measurement of forces and torques acting upon a vehicle tire (2a) and a vehicle wheel (2) using force sensors (4, 24, 44). The vehicle wheel (2) is mounted and able to rotate on a wheel axle. The wheel-force dynamometer (1) has a wheel axle that is in the form of a hollow shaft (9, 29, 49) which is hydrostatically mounted on a rigid, fixed in position bearing journal (3, 23, 43).
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公开(公告)号：US20220228941A1
公开(公告)日：2022-07-21
申请号：US17609197
申请日：2020-05-08
发明人： Jens EISENBEISS , Roland BÖSL
摘要： A test bench and a method to predict pressure oscillations in a vehicle tire. The tire is rotatably positioned, via a bearing on a test bench rim, the tire is pressurized with fluid, a load is applied on the tire, the tire is accelerated according to pre-determinable speed ramp to a final speed, the fluid in accordance with the tire speed, undergoes an oscillation excitation, and reacts to the oscillation excitation with a pressure oscillation. The method is characterized in that an effective force of the tire, due to the pressure oscillation, at the bearing is continuously detected, and that a descriptive data set is determined for the tire speed over the frequency, a timing signal of the speed ramp undergoes a Fourier transformation and, in an analogous manner, a reference data set is created through the use of a vehicle rim instead of the test bench rim.
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公开(公告)号：US20200149992A1
公开(公告)日：2020-05-14
申请号：US16613895
申请日：2018-04-18
发明人： Jens EISENBEISS
IPC分类号： G01M13/04 , F16D25/0638 , G01M13/027
摘要： Friction disk sets of clutches and brakes are used, for example, in automatic transmissions. In clutch test benches for such clutches, the friction disks are held in a test chamber on inner and outer disk carriers. The test bench arrangement has a clutch unit which includes first and second disk carriers. The first disk carrier can be moved relative to the second disk carrier. A drive input section includes a drive input mechanism for producing relative movement between the first and the second disk carrier. A first driven shaft is mounted by at least one first bearing unit. The first disk carrier is drive-connected, via the first shaft, to the drive input mechanism. The first shaft is mounted to rotate by virtue of the first bearing unit. The test bench arrangement includes a measuring unit for determining a frictional torque of the first bearing unit.
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公开(公告)号：US20190056283A1
公开(公告)日：2019-02-21
申请号：US15781766
申请日：2016-11-08
发明人： Jens EISENBEISS , Roland BÖSL
IPC分类号： G01M1/24
摘要： The invention relates to a wheel-force dynamometer (1) for the measurement by means of force sensors (6) of forces and torques that act upon a vehicle tire (2a) and a vehicle wheel (2), wherein the vehicle wheel (2) is mounted to rotate by means of a wheel axle. The wheel-force dynamometer (1) according to the invention is characterized in that the wheel axle is in the form of a rotor (3) which is hydrostatically mounted, axially fixed and able to rotate in the circumferential direction, in a rigid and positionally fixed housing (5).
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