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US 2023/0068424 A1Published application
Steering control device and method for vehicle
AssigneeMando Corporation
InventorsTaeHyung Sun, Tae Sik Kim
Life of this patent
Estimating the term…
Abstract
The present embodiments relates to a steering control device and method of a vehicle and may provide a steering control device and method for a vehicle, which may secure stably steered driving by controlling the output of the steering motor by changing the average steering ratio when the driver causes urgent steering in a failure situation and adjusting the rack stroke and rack speed.
Claims14
A steering control device of a vehicle, comprising:
- a condition determining unit determining a steering ratio change condition by determining whether a failure or emergency steering occurs in a steering motor or steering motor control device of the vehicle equipped with a steer-by-wire system;
- a steering ratio change unit changing an average steering ratio using a preset virtual C-factor when the steering ratio change condition is determined to be met;
- and
- a controller controlling a steering motor output and adjusting a rack stroke and a rack speed based on the changed average steering ratio.
1 more element
A steering control method of a vehicle, comprising:
- a condition determining step determining a steering ratio change condition by determining whether a failure or emergency steering occurs in a steering motor or steering motor control device of the vehicle equipped with a steer-by-wire system;
- a steering ratio change step changing an average steering ratio using a preset virtual C-factor when the steering ratio change condition is determined to be met;
- and
- a control step controlling a steering motor output and adjusting a rack stroke and a rack speed based on the changed average steering ratio.
1 more element
Dependencies are inferred from the claim text.