Vehicle steering control device
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United States of America Patent
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Nov 5, 2019
Grant Date -
Feb 7, 2019
app pub date -
Feb 9, 2017
filing date -
Feb 17, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
To provide a vehicle steering control device capable of suppressing influence of a torque generated during driving support by an EPS device on steering of a steering wheel performed by a driver. The vehicle steering control device includes an EPS controller (first controller) that controls a speed reduction mechanism and a differential mechanism controller (second controller) that controls a differential mechanism. In addition, the vehicle steering control device has a first steering assist mode of assisting driver's steering and a second steering assist mode of performing steering independently from the driver's steering. In the second steering assist mode, the second controller controls the differential mechanism so as to cancel a torque applied to a rack-and-pinion side of the differential mechanism from the speed reduction mechanism controlled by the first controller.
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