Granted Patent B2

US 12,594,992 · App. 17/833,166 · Granted Apr 7, 2026

Inventors: Takeshi Hamaguchi (Seto, JP); Shusaku Sugamoto (Toyota, JP); Satoshi Handa (Kariya, JP); Satoshi Inoue (Anjo, JP); Shintaro Saigo (Nisshin, JP)

Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA

B62D15/025

Abstract

Claims (18)

1 . A vehicle steering control device comprising:

a control device configured to:

acquire information on a curved road ahead of a driver's vehicle in a traveling direction, wherein the information on the curved road includes a curve radius;

set a predetermined guide steering angle based on the information on the curved road;

after the predetermined guide steering angle has been set, control a power steering device of the driver's vehicle to start to increase a guide steering angle from zero to the predetermined guide steering angle earlier in time as the curve radius of the curved road becomes smaller;

after the guide steering angle starts to increase to the predetermined guide steering angle, acquire an actual steering angle being performed by a driver of the driver's vehicle; and

apply a steering reaction force based on a difference between the guide steering angle and the actual steering angle being performed by the driver.

2 . The vehicle steering control device according to claim 1 , wherein the control device is configured to, as a traveling speed of the driver's vehicle becomes higher, control the guide steering angle to start to increase from zero earlier in time.

3 . The vehicle steering control device according to claim 1 , wherein the control device is configured to:

set a target for a change in the actual steering angle while the driver's vehicle travels along the curved road; and

limit a maximum value of the predetermined guide steering angle to a value smaller by a predetermined value than a maximum value of the actual steering angle that changes in accordance with the target.

4 . A vehicle steering control device comprising:

acquire information on a curved road ahead of a driver's vehicle in a traveling direction;

set a predetermined guide steering angle based on the information on the curved road;

set the steering reaction force based on a difference between the guide steering operation amount and an actual amount of the steering operation performed by the driver; and

after the predetermined guide steering angle has been set, control a power steering device of the driver's vehicle to start to increase a guide steering angle from zero to the predetermined guide steering angle earlier in time as a speed of the driver's vehicle becomes higher;

after the guide steering angle starts to increase to the predetermined guide steering angle, acquire an actual steering angle being performed by a driver of the driver's vehicle; and

apply a steering reaction force based on a difference between the guide steering angle and the actual steering angle being performed by the driver.

Assignments (1)

Priority Claims (2)

Continuity (1)

References Cited (18)