Fahrzeugaufhängungssystem

Details

Veröffentlichungs-Nr.

EP4364983

Aktenzeichen

EP22205407

Anmeldetag

3. November 2022

Veröffentlichung

28. Januar 2026

Erteilung

28. Januar 2026

Rechtsraum

EP

IPC

B60G17/0185B60G11/04B60G17/019G01M17/04G01C21/16

Abstract

The invention relates to a vehicle (1) comprising a chassis (7), a pair of left and right wheels (3, 4) and a suspension system (10) for connecting the wheels (3, 4) and the chassis (7), wherein the suspension system (10) comprises: a wheel axle (2); a first leaf spring (6) connected to the wheel axle (2) in association with a corresponding wheel (4), wherein the first leaf spring (6) is connected also to the chassis (7) so as to, while deflecting, allow relative vertical movement between the chassis (7) and the wheel axle (2) and thereby also between the chassis (7) and the wheels (3, 4), wherein the first leaf spring (6) extends in a longitudinal direction of the vehicle (7) and is connected to the chassis (7) via a moveable connection (6b, 6c) configured to allow a wind-up centre (20) of the first leaf spring (6) to move in the longitudinal direction when the first leaf spring (6) deflects; an inertial measurement unit (8b) arranged at the wind-up centre (20) of the first leaf spring (6), wherein the inertial measurement unit (8b) is adapted to provide a signal indicative of an actual path (30) followed by the wind-up centre (20) of the first leaf spring (6) when the first leaf spring (6) deflects; wherein the vehicle (1) further comprises a control circuitry (13) configured to: compare the signal indicative of the actual path (30) followed by the wind-up centre (20) with a representation of a reference path (40) that the wind-up centre (20) of the first leaf spring (6) should follow when the first leaf spring (6) is well-functioning and deflects as intended; determine whether a difference between the actual path (30) and the reference path (40) is greater than a threshold value; and, if the determined difference is greater than the threshold, generate an alarm signal indicative of a detected or possibly detected leaf spring failure.

Anmelder

Firma

VOLVO TRUCK CORPORATION

Land

🇸🇪 Schweden

Fachgebiete