Fahrzeugsteuerungsvorrichtung

Details

Veröffentlichungs-Nr.

EP3406506

Aktenzeichen

EP18172669

Anmeldetag

16. Mai 2018

Veröffentlichung

15. Juli 2020

Erteilung

15. Juli 2020

Rechtsraum

EP

IPC

B62D6/00

Abstract

A vehicle control device capable of transmitting a road surface state to a driver as a steering reaction force more appropriately is provided. An estimated axial force computation circuit (80) of a control device has an axial force computation circuit (81) that computes an axial force (Fl) that acts on a steered shaft on the basis of a current value (I b ) of a steering motor. The estimated axial force computation circuit (80) has a friction compensation circuit (83), an efficiency compensation circuit (84), and a gradient compensation circuit (86) as static characteristic computation circuits that compensate for an effect of the static characteristics of a steering mechanism on the axial force (Fl), which is computed by the axial force computation circuit (81). The estimated axial force computation circuit (80) has a filter (85) as a dynamic characteristic computation circuit that compensates for an effect of the dynamic characteristics of the steering mechanism on the axial force (Fl), which is computed by the axial force computation circuit (81). The filter (85) removes, from the axial force (Fl), an effect of the viscosity and the inertia of the steering motor and an effect of a frequency component of a transfer function for steeling control. The axial force (Fl) after compensation is used to control a reaction force motor.

Anmelder

Firma

JTEKT CORPORATION

Land

🇯🇵 Japan

Fachgebiete