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公开(公告)号：US20240110849A1
公开(公告)日：2024-04-04
申请号：US18256152
申请日：2021-12-02
发明人： Jens Eisenbeiss , Roland Bösl
IPC分类号： G01M17/02
CPC分类号： G01M17/022
摘要： A tire test stand includes a frame, a tire holder, and a hexapod assembly having six linear drive elements, each of the six linear drive elements being attached at a first end to the frame and at a second end to the tire holder. A tire can be attached to the tire holder so as to be rotatable about its axis of rotation. The test stand also has two rotatably mounted deflection pulleys that are partially looped around by a belt such that the belt forms a flat belt portion between the deflection pulleys. When the tire is rotatably attached to the tire holder, the tire can be brought into a contact position in which the tread of the tire contacts the flat belt portion. When in the contact position and the belt is moved in relation to the tire, the tire rolls on the flat belt portion.
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公开(公告)号：US12123805B2
公开(公告)日：2024-10-22
申请号：US17609188
申请日：2020-05-08
发明人： Jens Eisenbeiss , Roland Bösl
CPC分类号： G01M17/021 , G01M1/045
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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公开(公告)号：US11422066B2
公开(公告)日：2022-08-23
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. There is a tire testing machine 1 suggested, comprising a rolling device 4, a tire mounting device 3 and a driving assembly 2, whereby the driving assembly 2 is operable to rotate the rolling device 4 and/or the tire mounting device 3 according to a configurable driving cycle, whereby the rolling device 4 has a drum 5 with an outer peripheral surface 7, whereby the tire 14 is rotatable mountable on the tire mounting device 3, whereby the tire mounting device 3 is arranged that the tire 14 is engaged with the outer peripheral surface 7 of the drum 5, with a first torque measuring assembly 12, a second torque measuring assembly 18, and an angular velocity measuring assembly 12, whereby the first torque measuring assembly 12 is operable to measure a drum drive torque of the drum 5 and the second torque measuring assembly 18 is operable to measure a tire drive torque of the tire (14), whereby the angular velocity measuring assembly 12 is operable to measure and/or calculate the angular velocity of the tire ωT and the angular velocity of the drum ωD.
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公开(公告)号：US10704978B2
公开(公告)日：2020-07-07
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： A wheel-force dynamometer (1) for measuring, via force sensors (6), force and torque that act upon a vehicle tire (2a) and a vehicle wheel (2). The vehicle wheel (2) is mounted to rotate by way of a wheel axle. The wheel-force dynamometer (1) 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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公开(公告)号：US20240060859A1
公开(公告)日：2024-02-22
申请号：US17766649
申请日：2020-10-20
发明人： Roland Bösl
CPC分类号： G01M17/022 , G01L5/167 , G01L5/20
摘要： Disclosed is a test rig (1) for testing vehicle tires. In one embodiment, the test rig includes a rotating drum (2) on a drum axle (3) and force pick-ups (4, 5, 6) for the determination of a radial force acting on the drum axle (3) and a lateral force acting on the drum axle (3). In one embodiment, the test rig (1) has three uniaxial force pick-ups (4, 5, 6), such that a first and a second force pick-up (4, 5) are arranged so as to determine a radial force, where a third force pick-up (6) is arranged so as to determine a lateral force, and where the first force pick-up (4) and the third force pick-up (6) are coupled. Also disclosed is a method for testing vehicle tires.
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公开(公告)号：US11035757B2
公开(公告)日：2021-06-15
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
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：US10760984B2
公开(公告)日：2020-09-01
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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