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公开(公告)号：US10578213B2
公开(公告)日：2020-03-03
申请号：US15829083
申请日：2017-12-01
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Travis S. Larson , George E. Doerr , Miroslaw Zaloga , John T. Zuzelski , David Juarez
Abstract: A steering assembly for a vehicle includes a steering gear including a steering gear housing enclosing a steering rack, the steering rack coupled to a tie rod at a joint, at least one boot assembly configured to enclose the joint between the steering rack and the tie rod. The at least one boot assembly includes a first boot proximate to the joint and a second boot disposed outward of the first boot. The first and second boots define a void therebetween.
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公开(公告)号：US20200339176A1
公开(公告)日：2020-10-29
申请号：US16394377
申请日：2019-04-25
Applicant: GM Global Technology Operations LLC
Inventor： Yu Cao , George E. Doerr , Peter J. Judis
Abstract: A method for controlling a vehicle includes providing a vehicle steering system including a moveable steering column assembly and a moveable steering wheel assembly, at least one actuator coupled to the moveable steering column assembly and configured to move the vehicle steering system from a first position to a second position, providing a sensor connected to the vehicle steering system and configured to measure a steering system displacement, providing a controller electronically connected to the sensor and the at least one actuator, monitoring sensor data received from the sensor to determine a measured steering system displacement, comparing the measured steering system displacement with a tracking displacement, determining whether a condition is satisfied, and, if the condition is satisfied, automatically generating a control signal to control the at least one actuator.
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公开(公告)号：US20210245802A1
公开(公告)日：2021-08-12
申请号：US16784794
申请日：2020-02-07
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Travis S. Larson , George E. Doerr
IPC: B62D5/04
Abstract: Determining a sealing integrity of a steering assembly determining when the steering assembly is performing a steering event, determining an expected pressure change associated with the steering event, and receiving data from the pressure sensing member. During performance of the steering event, the controller analyzes the data from the pressure sensing member and determines when the pressure sensing member detects the expected pressure change and reduces an incident counter. When the pressure sensing member does not detect the expected pressure change, the incident counter is increased.
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Patent Agency Ranking
公开(公告)号：US20190016375A1
公开(公告)日：2019-01-17
申请号：US15647668
申请日：2017-07-12
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Ramakrishna Vijayakumar , George E. Doerr
CPC classification number: B62D5/0463 , B60G17/0162 , B62D3/12 , B62D5/046 , B62D15/0225
Abstract: Systems and methods for controlling an electric power steering (EPS) motor of an EPS system of a vehicle are provided. A steering rack position sensor detects a linear position of a steering rack linear of the EPS system and a suspension travel sensor detects a suspension travel of the vehicle. An EPS controller has a processor and a memory. The EPS controller is configured to control the current draw of the EPS motor. The EPS controller is further configured to determine an EPS motor output torque based on the linear position of the steering rack and the suspension travel, and to limit the current draw of the EPS motor based on the EPS motor output torque.
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公开(公告)号：US11247721B2
公开(公告)日：2022-02-15
申请号：US16784794
申请日：2020-02-07
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Travis S. Larson , George E. Doerr
IPC: B62D5/04
Abstract: Determining a sealing integrity of a steering assembly determining when the steering assembly is performing a steering event, determining an expected pressure change associated with the steering event, and receiving data from the pressure sensing member. During performance of the steering event, the controller analyzes the data from the pressure sensing member and determines when the pressure sensing member detects the expected pressure change and reduces an incident counter. When the pressure sensing member does not detect the expected pressure change, the incident counter is increased.
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公开(公告)号：US10464595B2
公开(公告)日：2019-11-05
申请号：US15647668
申请日：2017-07-12
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Ramakrishna Vijayakumar , George E. Doerr
IPC: B62D5/04 , B62D3/12 , B60G17/016 , B62D15/02
Abstract: Systems and methods for controlling an electric power steering (EPS) motor of an EPS system of a vehicle are provided. A steering rack position sensor detects a linear position of a steering rack linear of the EPS system and a suspension travel sensor detects a suspension travel of the vehicle. An EPS controller has a processor and a memory. The EPS controller is configured to control the current draw of the EPS motor. The EPS controller is further configured to determine an EPS motor output torque based on the linear position of the steering rack and the suspension travel, and to limit the current draw of the EPS motor based on the EPS motor output torque.
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公开(公告)号：US20190170251A1
公开(公告)日：2019-06-06
申请号：US15829083
申请日：2017-12-01
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Travis S. Larson , George E. Doerr , Miroslaw Zaloga , John T. Zuzelski , David Juarez
Abstract: A steering assembly for a vehicle includes a steering gear including a steering gear housing enclosing a steering rack, the steering rack coupled to a tie rod at a joint, at least one boot assembly configured to enclose the joint between the steering rack and the tie rod. The at least one boot assembly includes a first boot proximate to the joint and a second boot disposed outward of the first boot. The first and second boots define a void therebetween.
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公开(公告)号：US20170321839A1
公开(公告)日：2017-11-09
申请号：US15147396
申请日：2016-05-05
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： George E. Doerr , Miroslaw Zaloga
CPC classification number: F16L58/18 , B60R16/08 , B60R19/54 , B62D3/14 , C23F13/10 , C23F13/18 , C23F2213/32
Abstract: A fluid connector for connecting fluid conduit to a component in the presence of an electrolyte solution includes a connector body and sacrificial anode. The connector body defines an internal recess. The sacrificial anode can be press-fitted into the internal recess and circumscribed by the connector body. The sacrificial anode, which is constructed of a material that is configured to be consumed over a life of the component to prevent or delay corrosion of the connector body due to contact with the electrolyte solution, may be constructed of aluminum, magnesium, zinc, or other active metals. A fluid system for use in the presence of the electrolyte solution includes the component, fluid conduit, a pump, and the fluid connector. A vehicle includes the fluid system and a vehicle body. The component may be a steering gear assembly in some embodiments.
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