EP4232306A1 - Pièce de suspension avant améliorée pour système de suspension de véhicule lourd - Google Patents

Pièce de suspension avant améliorée pour système de suspension de véhicule lourd

Info

Publication number
EP4232306A1
EP4232306A1 EP21794648.2A EP21794648A EP4232306A1 EP 4232306 A1 EP4232306 A1 EP 4232306A1 EP 21794648 A EP21794648 A EP 21794648A EP 4232306 A1 EP4232306 A1 EP 4232306A1
Authority
EP
European Patent Office
Prior art keywords
front hanger
suspension system
upper portion
chassis
fixation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21794648.2A
Other languages
German (de)
English (en)
Inventor
Christian Konrad
Florian Koeberle
Michael GUNGL
Fabian Schmidt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Iveco Magirus AG
Original Assignee
Iveco Magirus AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Iveco Magirus AG filed Critical Iveco Magirus AG
Publication of EP4232306A1 publication Critical patent/EP4232306A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G9/00—Resilient suspensions of a rigid axle or axle housing for two or more wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2200/00—Indexing codes relating to suspension types
    • B60G2200/30—Rigid axle suspensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/43—Fittings, brackets or knuckles
    • B60G2204/4302—Fittings, brackets or knuckles for fixing suspension arm on the vehicle body or chassis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2300/00—Indexing codes relating to the type of vehicle
    • B60G2300/02—Trucks; Load vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2300/00—Indexing codes relating to the type of vehicle
    • B60G2300/50—Electric vehicles; Hybrid vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
    • B60K2001/0411—Arrangement in the front part of the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
    • B60K2001/0438—Arrangement under the floor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/14—Trucks; Load vehicles, Busses

Definitions

  • the present invention concerns a front hanger for a suspension system, in particular a front hanger for a heavy vehicle suspension system provided with an electronic traction.
  • a front hanger for a heavy vehicle suspension system provided with an electronic traction.
  • Heavy vehicles such road transport vehicles, e.g. trucks, are more and more electrified for reducing their polluting emissions. In particular, such vehicles may be hybrid vehicles or purely electric vehicles.
  • the electrified vehicles comprises at least an electric axle, i.e. an axle provided with electric machines such as motors/generators configured to impart a torque on the axle to allow its motion or to recharge battery modules of the vehicle when this latter is braking.
  • electric machines such as motors/generators configured to impart a torque on the axle to allow its motion or to recharge battery modules of the vehicle when this latter is braking.
  • battery modules are usually placed in the proximity of the electric machines of the electric axle in order to provide energy exchange with electric machines in an efficient way.
  • an axle of a vehicle is connected to the chassis of this latter via a suspension system configured to dampen the forces acting between the road and the chassis. If a vehicle is provided with an electric axle as described above, the presence of the electric batteries does not allow the use of standard front hangers that are used to give support to different elements of the suspension.
  • ⁇ Figure 1 is a perspective view showing a front hanger according to the present invention
  • ⁇ Figure 2 is a perspective view showing a portion of a vehicle provided with electric battery modules and a front hanger according to the present invention
  • ⁇ Figure 3 is a top view showing the portion of vehicle of figure 2, with parts removed for sake of clarity
  • ⁇ Figure 4 is a lateral view showing the portion of vehicle of figure 2, with parts removed for sake of clarity
  • ⁇ Figures 5 and 6 are enlarged perspective views showing details of connection of electric battery modules of a vehicle with the front hanger according to the present invention.
  • FIG. 2 shows a portion of a chassis 1 of a heavy vehicle such as truck, comprising as known a pair of side members 2 extending longitudinal along a longitudinal axis A of the vehicle.
  • the chassis 1 is connected via a suspension system 5, partially shown, to an electric axle 4, shown only schematically.
  • the suspension system 5 dampens the relative movements between the chassis 1 and the electric axle 4 that is configured to provide torque to wheels, not shown, carried by the electric axle 5 itself.
  • the chassis 1 is furthermore configured to carry at least one battery module 6 configured to be electrically connected to the electric axle 4 to exchange electric energy.
  • the electric axle 4 is provided with electric machines that are fed by the at least one battery module 6 to provide torque to the wheels carried by the axle 4 or to receive electric energy generated by the electric machines when the vehicle is braking.
  • the chassis 1 carries two battery modules 6 in particular a battery module 6 for each side member 2. More preferably, each battery module 6 is carried externally with respect to each side member 2.
  • the suspension system 5 comprises, as known, a plurality of elements 7', 7'', 8 configured to connect the electric axle 4 to respective side members 2, 3 in order to dampen/limit a relative movement along a direction along axis A or a different axis.
  • the proposed suspension system 5 comprises longitudinal right and left rods 7', 7'' configured to longitudinally limit, i.e. along axis A, a movement of electric axle 4 and a V-rod 8 provided with two inclined arms with respect to axis A and configured to limit a movement on a transversal axis perpendicular to axis A.
  • the V-rod 8 comprises a right arm 8' and a left arm 8''.
  • the suspension system comprises other elements such as air bellow or dampers (not shown) to limit a vertical motion of the electric axle 4 and here not shown and described for simplicity.
  • the V-rod 8 is connected to side members via a cross member 9 as shown in figure 3.
  • each front hanger 10 is configured to allow the connection of at least one element of the suspension system 5, i.e. in the described embodiment the longitudinal right and left rods 7', 7'', to the respective side member 2, 3 of chassis 1 and to allow the fixation of a battery module to the respective side member 2, 3 of chassis 1.
  • suspension elements and the battery module can be fixed at least in between the upper portion, the lower portion and the intermediate portion.
  • the front hanger 10 comprises a substantially flat element 11 provided with an upper portion 11' and a lower portion 11''.
  • the upper portion 11' and the lower portion 11'' are connected by an intermediate portion 11''' and, preferably, they are all realized as one piece.
  • the flat element 11 defining the front hanger 10 is a monolithic element realized in metallic material by casting.
  • the lower portion 11'' extends long a vertical axis perpendicular to axis A starting to upper portion 11' and has a transversal cross section that is transversally bigger but longitudinally smaller with respect to upper portion 11'.
  • the intermediate portion 11''' has cross-section having a tapered profile to join the upper portion 11' and the lower portion 11''.
  • the upper portion 11' is configured to be securely fixed to the respective side member 2, 3.
  • the upper portion 11' defines a plurality of holes 12 configured to allow the passage of a fixation element such as a threaded element, a dowel or the like.
  • the upper portions defines a first plurality of holes 12 and a second plurality of holes 12, i.e. two separate group of holes, that are realized on opposite longitudinal portions of the upper portion 11 with respect to a transversal plane ⁇ . Accordingly, it is defined a rear plurality of holes 12 and a front plurality of holes 12.
  • the lower portion 11'' is configured to allow the connection of an extremity portion of a respective longitudinal rod 7', 7'', in particular through a movable connection.
  • the movable connection is a hinge connection 13 configured to allow the movement of the extremity portion of the longitudinal rod 7', 7'' about a transversal axis B.
  • the lower portion 11'' bifurcates thereby defining an outer leg 14' and an inner leg 14'' respectively positioned outer and closer with respect to a longitudinal plane ⁇ .
  • Each leg 14', 14'' defines on a terminal portion thereof a through hole 15 configured to allow the fixation of the hinge connection 13, as shown in greater detail in figures 4 and 6 and not further described for sake of brevity.
  • Each front hanger 10 further defines both in the upper portion 11' and in the lower portion 11'' at least a fixation point for a battery module 6 of the vehicle.
  • the upper portion 11' defines a pair of fixation points for the battery module 6 and the lower portion defines a single fixation point for such battery module 6.
  • the upper portion 11' defines a first and second fixation points 16, 17 configured respectively to secure the battery module 6 to the front hanger 10 thereby supporting a longitudinal and a vertical possible movement of this latter.
  • the first fixation point 16 comprises a cantilevered portion 18 that is preferably substantially flat and extending horizontally, i.e. in a plane perpendicular to planes ⁇ and ⁇ getting far from upper portion 11'.
  • cantilevered portion 18 extends from an upper edge of front hanger 10.
  • Such cantilevered portion 18 defines a hole 19 configured to allow the fixation of the battery module, via a fixation element such as a threaded element, a dowel or the like.
  • the second fixation point 17 comprises a flanged portion 21 that is preferably substantially flat and extending transversally, i.e. along plane ⁇ /axis B direction and getting far from upper portion 11'.
  • Such flanged portion 21 defines a plurality of holes 22 configured to allow the fixation of the battery module, via a fixation element such as a threaded element, a dowel or the like.
  • the single fixation point 23 comprises a protrusion 24 that is configured to define a hole 25 configured to allow the fixation of the battery module, via a fixation element such as a threaded element, a dowel or the like.
  • hole 25 is parallel to transversal axis B and, preferably, the protrusion 24 is realized in the outer leg 14' of the lower portion 11''.
  • both the front hanger 10, the longitudinal rods 7', 7'' and the battery modules 6 are placed opposite with respect to the space comprised by the side members 2, 3.
  • the operation of the above described front hanger 10 is the following.
  • the front hanger 10 can be used to securely fix the respective battery module 6 to the chassis 1 in a simple and quick way.
  • the front hanger 10 allow the support of the vertical, horizontal and rotation possible movements of the battery modules in a sturdy and stable way. Moreover, since further brackets or hangers are provided to secure the battery modules to the chassis 1, the space around this latter is not wasted since the proposed front hanger 10 can be substituted to the already known one, having substantially the same overall dimensions. If the battery modules are not present on the vehicle or only a single battery module is present, the provided fixation points 16, 17 and 23 may be used for securing other elements of the heavy vehicle to its chassis 1. It is clear that modifications can be made to the described front hanger, suspension system and vehicle comprising such front hanger, which do not extend beyond the scope of protection defined by the claims.
  • fixation points 16, 17 and 23 may comprise plates/walls/protrusions having different shapes, allowing a plurality of fixation holes according to the specific fixation way of the battery module.
  • overall described portions of the front hanger 10 may be varied according to the typology of suspension system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Vehicle Body Suspensions (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

L'invention concerne un système de suspension d'un véhicule lourd comprenant une pièce de suspension avant (10) destinée à un véhicule lourd, une telle pièce de suspension avant (10) comprenant une partie supérieure (11'), une partie inférieure (11'') et une partie intermédiaire (11''') reliant ensemble les parties supérieure et inférieure (11', 11''). La partie supérieure (11') étant conçue pour fixer la pièce de suspension avant (10) au châssis dudit véhicule, l'une au moins de la partie supérieure (11') , de la partie intermédiaire et de la partie inférieure (11''') étant conçue pour permettre la liaison d'un élément (7', 7") d'un système de suspension (5) de véhicule, la partie supérieure (11') et la partie inférieure (11'') comprenant au moins un point de fixation (16, 17, 23) conçu pour permettre la fixation d'un module de batterie (6) du véhicule.
EP21794648.2A 2020-10-22 2021-10-22 Pièce de suspension avant améliorée pour système de suspension de véhicule lourd Pending EP4232306A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102020000025009A IT202000025009A1 (it) 2020-10-22 2020-10-22 Staffa anteriore migliorata per un sistema di sospensione di un veicolo pesante
PCT/IB2021/059760 WO2022084936A1 (fr) 2020-10-22 2021-10-22 Pièce de suspension avant améliorée pour système de suspension de véhicule lourd

Publications (1)

Publication Number Publication Date
EP4232306A1 true EP4232306A1 (fr) 2023-08-30

Family

ID=74068609

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21794648.2A Pending EP4232306A1 (fr) 2020-10-22 2021-10-22 Pièce de suspension avant améliorée pour système de suspension de véhicule lourd

Country Status (3)

Country Link
EP (1) EP4232306A1 (fr)
IT (1) IT202000025009A1 (fr)
WO (1) WO2022084936A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022128747A1 (de) * 2022-10-28 2022-12-29 Daimler Truck AG Nutzfahrzeug

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4206360B4 (de) * 1992-02-29 2008-04-03 Audi Ag Zweiachsiges Kraftfahrzeug mit einer autarken, wechselbaren Antriebseinheit
FR2954232B1 (fr) * 2009-12-22 2012-04-20 Peugeot Citroen Automobiles Sa Vehicule automobile comportant un groupe electromoteur et son module d'alimentation electrique disposes au voisinage d'un train roulant du vehicule
DE102010043901A1 (de) * 2010-11-15 2012-05-16 Bayerische Motoren Werke Aktiengesellschaft Elektrisch angetriebene Achse eines zweispurigen Fahrzeugs
DE102013210575A1 (de) * 2012-09-19 2014-05-28 Bayerische Motoren Werke Aktiengesellschaft Anordnung des elektrischen Antriebs eines zweispurigen zweiachsigen Kraftfahrzeugs
ES2844204T3 (es) * 2015-07-23 2021-07-21 Iveco Magirus Suspensión de eje neumático para un eje posterior de un vehículo

Also Published As

Publication number Publication date
IT202000025009A1 (it) 2022-04-22
WO2022084936A1 (fr) 2022-04-28

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