Low-noise tire

A tire (10) for a passenger vehicle having an outside diameter OD and comprising a tread (14) intended to come into contact with a ground, when the tire (10) is running, via a tread surface (38) axially delimited by first and second axial edges (41, 42) of the tread surface (38), the tread (14) comprising:

• an axially central portion (P0) comprising main circumferential grooves (52, 54, 56, 58) having a depth (Hr) greater than or equal to 50% of a tread pattern height (Hs) comprising at least first and second main circumferential grooves (52, 54) which are arranged axially one on each side of a median plane (M) of the tire (10), the first and second main circumferential grooves (52, 54) being the main circumferential grooves axially furthest toward the outside of the tread (14), the axially central portion (P0) extending axially from an axially outside edge (521) of the first main circumferential groove (52) as far as an axially outside edge (541) of the second main circumferential groove (54), the axially central portion (P0) comprising at least one central rib (62, 64, 66), the or each central rib (62, 64, 66) being axially delimited by two main circumferential grooves (52, 54, 56, 58) having a depth (Hr) greater than or equal to 50% of the tread pattern height (Hs);
• first and second axially lateral portions (P1, P2) arranged axially on an outside of the axially central portion (P0) axially one on each side of the axially central portion (P0) with respect to the median plane (M) of the tire (10) and arranged in such a way that:
• the first axially lateral portion (P1) extends axially from a first axial edge (41) of the tread surface (38) as far as the axially outside edge (521) of the first main circumferential groove (52),
• the second axially lateral portion (P2) extends axially from a second axial edge (42) of the tread surface (38) as far as the axially outside edge (541) of the second main circumferential groove (54),
• the or each central rib (62, 64, 66) and each first and second axially lateral portion (P1, P2) comprises at least one axial portion (P62, P64, P66, P11, P21, P641, P642, P643, P644, P622, P662) that satisfies only one of the following conditions I, II, III, an axial width of a whole of the axial portion or portions of the or each central rib (62, 64, 66) and of each first and second axially lateral portion (P1, P2) each satisfying only one of conditions I, II, III being greater than or equal to 70% of an axial width (Ln2, Ln4, Ln6, L1, L2) of the or each central rib (62, 64, 66) and of each first and second axially lateral portion (P1, P2):
• (I) the axial portion (P62, P64, P66, P642, P643, P622, P662) comprises no transverse cut (90, 90′) having a depth (Ht) greater than or equal to 20% of the tread pattern height (Hs) and an axial length (La, Lb, Lc) greater than or equal to 20% of the axial width (Ln2, Ln4, Ln6, L1, L2) of the central rib (62, 64, 66) or of the axially lateral portion (P1, P2), the axial portion possibly comprising at least one circumferential cut (72, 74, 76, 82, 84) having a depth (Hc2, Hc4, Hc6, Hl2, Hl4) strictly less than 50% of the tread pattern height (Hs),
• (II) the axial portion (P644) comprises transverse cuts (90, 90′) having a depth (Ht) greater than or equal to 20% of the tread pattern height (Hs) and an axial length (La, Lb, Lc) greater than or equal to 20% of the axial width of the central rib (62, 64, 66) or of the axially lateral portion (P1, P2), a collection of the N transverse cuts (90, 90′) of the axial portion having a depth (Ht) greater than or equal to 20% of the tread pattern height (Hs) and an axial length (La, Lb, Lc) greater than or equal to 20% of the axial width (Ln2, Ln4, Ln6, L1, L2) of the central rib (62, 64, 66) or of the axially lateral portion (P1, P2) being arranged in such a way that π×OD/N≥40 mm, the axial portion possibly comprising at least one circumferential cut (72, 74, 76, 82, 84) having a depth (Hc2, Hc4, Hc6, Hl2, Hl4) strictly less than 50% of the tread pattern height (Hs),
• (III) the axial portion (P11, P21, P621, P641, P661, P643) comprises transverse cuts (90, 90′) having a depth (Ht) greater than or equal to 20% of the tread pattern height (Hs) and an axial length (La, Lb, Lc) greater than or equal to 20% of the axial width (Ln2, Ln4, Ln6, L1, L2) of the central rib (62, 64, 66) or of the axially lateral portion (P1, P2), a whole of the N transverse cuts (90, 90′) of the central rib (62, 64, 66) or of the axial portion having a depth (Ht) greater than or equal to 20% of the tread pattern height (Hs) and an axial length (La, Lb, Lc) greater than or equal to 20% of the axial width (Ln2, Ln4, Ln6, L1, L2) of the central rib (62, 64, 66) or of the axially lateral portion (P1, P2) being arranged in such a way that π×OD/N≤24 mm, the axial portion possibly comprising at least one circumferential cut (72, 74, 76, 82, 84) having a depth (Hc2, Hc4, Hc6, Hl2, Hl4) strictly less than 50% of the tread pattern height (Hs),
• condition I or II being satisfied at least by one of the axial portions of the or each of the central ribs (62, 64, 66) or by one of the axial portions of the first axially lateral portion (P1) or by one of the axial portions of the second axially lateral portion (P2), and
• condition III being satisfied at least by one of the axial portions of the or each of the central ribs (62, 64, 66) or by one of the axial portions of the first axially lateral portion (P1) or by one of the axial portions of the second axially lateral portion (P2).