DE102018204680A1 - vehicle - Google Patents

Abstract

The invention relates to a vehicle comprising a body, an electrical energy store fastened to the body, and an axle carrier for receiving two opposite wheels of the vehicle, wherein the axle carrier is fastened directly to the body at at least one first attachment point and at least one second attachment point directly on the body Energy storage is attached.

Description

The present invention relates to the connection of an axle carrier of a vehicle to the body.

Different vehicles with axle carriers are known from the prior art. The axle carrier can basically be a front axle carrier or a rear axle carrier. The axle supports serve to receive two opposing wheels and are usually attached to the body. The axle carrier may for example also be referred to as a subframe or subframe.

It is an object of the present invention to provide a vehicle with axle, which enables safe and durable operation with the best possible dynamic driving characteristics and little acoustic interference.

The object is achieved by the features of claim 1. The dependent claims have advantageous embodiments of the invention the subject.

Thus, the problem is solved by a vehicle. The vehicle is in particular a two-lane road vehicle. The vehicle includes a body and an electrical energy storage. The energy storage is attached to the body. In particular, this is a relatively large energy store, which is designed to support or sole drive the vehicle. In the energy store, a plurality of electrochemical cells are preferably arranged.

Furthermore, the vehicle comprises an axle carrier for receiving two opposite wheels of the vehicle. The axle is attached to at least one attachment point directly to the body and attached to at least one second attachment point directly on the energy storage. According to the invention, the axle carrier is fastened both to the body and to the energy store. Therefore, it is advantageously utilized that the energy storage device has a relatively large mass and a rigid housing. The housing of the energy storage is usually formed with respect to the transverse forces with a very rigid structure.

It is preferably provided that the axle carrier is fastened to the body at the first attachment point with an elastic bearing. As already described, there may in particular be several first attachment points. For example, the axle carrier may be connected to the body at two, three or four first fastening points via elastic bearings.

Preferably, the axle is attached to the second attachment point with a rigid bearing on the energy storage. Several of the second attachment points may be provided, so that the axle is rigidly attached to the energy storage, for example, two, three or four second attachment points.

The energy store in turn is preferably attached to the body with at least one elastic bearing, preferably exclusively with elastic bearings.

A purely elastic bearing of an axle carrier in relation to the body could negatively evaluate the driving dynamics characteristics. In contrast, although a rigid connection of an axle carrier while good driving dynamics, but not optimal in terms of acoustic properties. In the present case, it is proposed to connect the axle carrier via elastic bearings directly to the body and to connect via rigid bearings to the energy store. The energy storage in turn is elastically mounted relative to the body. Due to the rigid storage on relatively heavy energy storage, there are positive effects on the driving dynamics properties. The overall elastic support against the body optimizes the acoustic properties.

Furthermore, it is preferably provided that the axle carrier is designed as a front axle carrier and thus serves to receive the two front wheels. The front axle is with respect. The direction of travel of the vehicle preferably attached to the front of the body and the rear of the energy storage.

Furthermore, it is preferably provided that the vehicle comprises a further axle carrier, designed as a rear axle carrier. This rear axle is preferably not attached to the energy storage, but fixed exclusively on elastic bearings on the body. However, another design of the rear axle is possible.

The energy store preferably comprises a housing and a plurality of electrochemical cells in the housing.

The energy store is preferably designed as a high-voltage energy storage and serves to drive the vehicle.

The rigid bearings described in this application are stiffer than the elastic bearings. In particular, it is provided that the elastic bearings have elastic elements, in particular made of elastomer. The elastic bearings have a certain elasticity, in particular in the transverse direction, longitudinal direction and vertical direction of the vehicle. The rigid bearings are stiff in particular with respect to the transverse direction, the longitudinal direction and the vertical direction of the vehicle.

• 1 eine rein schematische Ansicht des erfindungsgemäßen Fahrzeugs gemäß einem Ausführungsbeispiel.

Further details, features and advantages of the invention will become apparent from the following description and the figure. Show it:

• 1 a purely schematic view of the vehicle according to the invention according to an embodiment.

1 show in a purely schematic view of a vehicle 1 , The vehicle 1 includes a body 2 , an energy store 3 , a front axle 4 and a rear axle carrier 5 ,

The energy storage 3 is over several elastic bearings 8th at the body 2 attached.

The front axle carrier 4 is about first attachment points 6 directly with the body 2 connected. The first attachment points 6 are at the front with regard to the direction of travel. Furthermore, the front axle is 4 via second attachment points 7 directly with the energy storage 3 connected. The second attachment points 7 are behind with regard to the direction of travel.

At the first attachment points 6 are elastic bearings 8th intended. At the second attachment points 7 are stiff bearings 9 intended.

The rear axle carrier 5 is about elastic bearings 8th directly with the body 2 connected.

LIST OF REFERENCE NUMBERS

1

vehicle

2

body

3

energy storage

4

front axle

5

Hinterachsträger

6

first attachment point

7

second attachment point

8th

elastic bearing

9

stiff bearing

Claims (8)

Vehicle (1) comprising A body (2), • one on the body (2) fixed electrical energy storage (3), and An axle support (4) for receiving two opposite wheels of the vehicle (1), Wherein the axle carrier (4) is fastened directly to the body (2) at at least one first attachment point (6) and is fastened directly to the energy store (3) at at least one second attachment point (7). Vehicle after Claim 1 in that the axle carrier (4) is fastened to the body (2) at the first fastening point (6) with an elastic bearing (8). Vehicle according to one of the preceding claims, wherein the axle support (4) at the second attachment point (7) with a rigid bearing (9) is attached to the energy storage device (3). Vehicle according to one of the preceding claims, wherein the energy store (3) with at least one elastic bearing (8), preferably only with elastic bearings (8), on the body (2) is attached. Vehicle according to one of the preceding claims, wherein the axle carrier (4) is designed as a front axle and with respect to the direction of travel at the front of the body (2) and the rear of the energy storage (3) is attached. Vehicle according to one of the preceding claims comprising a further axle carrier (5), designed as a rear axle, wherein the rear axle is fastened exclusively with elastic bearings (8) on the body (2). Vehicle according to one of the preceding claims, wherein the energy store (3) comprises a housing and a plurality of electrochemical cells in the housing. Vehicle according to one of the preceding claims, wherein the energy store (3), in particular as a high-voltage energy storage, for driving the vehicle (1) is formed.

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