US 2025/0026403 A1Published application

Turning control device

AssigneeDenso Corporation

InventorsTAKAFUMI SATO, SHUJI KURAMITSU, YUTA SUZUKI

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Abstract

A turning control device controls a turning of each wheel in a vehicle in which three or more wheels that are not mechanically restricted from one another can be turned independently. Steering actuator control units are provided corresponding to a plurality of turning actuators that turn the respective wheels, and control a drive current so that a turning angles output by the turning actuators become desired values. A reaction force actuator control unit controls a drive of a reaction force actuator in a steering mechanism of a steer-by-wire system. The turning actuator control units and the reaction force actuator control unit communicate a drive limit information, and limit the drive of the turning actuators and the reaction force actuator based on the drive limit information.

Claims6

Dependent claims

A turning control device for controlling a turning of each wheel in a vehicle in which three or more wheels that are not mechanically restricted from each other are turned independently, the turning control device, comprising:

a plurality of turning actuator control units provided in correspondence with a plurality of turning actuators for turning each wheel, and configured to control a drive current applied to the turning actuators so that a turning angle output by the turning actuator becomes desired value;
and
a reaction force actuator control unit configured to control a drive of a reaction force actuator that applies a reaction force torque against a steering of a driver to a steering wheel in a steering mechanism of a steer-by-wire system that is provided mechanically separated from the turning actuator;
wherein
the plurality of turning actuator control units and the reaction force actuator control unit communicate a drive limit information which is information regarding a drive limit of the turning actuator or the reaction force actuator, and limit the drive of the turning actuator and the reaction force actuator based on the drive limit information.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/905,018Filed 2 Oct 2024
Priority: JP 2022-0623544 Apr 2022
Published: 23 Jan 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

B62D 6/00
Arrangements for automatically controlling steering depending on driving conditions sensed and responded
B62D 6/008
Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits: control of…
B62D 5/001
Power-assisted or power-driven steering: mechanical components or aspects of steer-by-wire systems, not otherwise provided for in this maingroup
B62D 5/003
Mechanical components or aspects of steer-by-wire systems, not otherwise provided for in this maingroup: backup systems, e.g. for manual steering