DE102014106281A1 - Test or practice track for vehicles - Google Patents

Abstract

The invention relates to a test or training track for vehicles, in particular for motor vehicles for reproducing driving or acceleration / deceleration conditions at low coefficients of friction, comparable to conditions on rain-wet and / or ice or snow-covered roads, being used as a covering (2) highly lubricious plastic, preferably polyethylene is used, and wherein the test or training track (pad 2) with a lubricant (7) can be sprayed, and wherein the test or Übungsbahn (pad 2) opposite adjacent areas of the road ( 1) of a test or training route by means of a compressed air curtain (6) can be delimited.

Description

The invention relates to a test track for vehicles, in particular for motor vehicles for the reproduction of driving or acceleration / deceleration conditions low friction, comparable to conditions on rainy and / or ice or snowy roads.

Such test or training lanes are used on the test tracks of vehicle manufacturers, on traffic training courses, on places where safety training is performed, etc. Usually, these test or exercise lanes with an extremely smooth surface with z. B. smooth-coated concrete or even finished with fine ceramic tiles. In order to achieve the lowest possible friction for the corresponding purposes, usually a lubricant is sprayed. Normally this is water; if necessary, the water but also with the lubricity further increasing additives such. B. mixed glycerol. Such test or exercise lanes require high care and due to their sensitive surfaces constant conservation effort.

From the prior art, different constructions of such systems have become known. Is referred z. B. on the DE 33 14 505 C2 , the US Pat. No. 6,626,607 B1 and the JP 03-137304 ,

The invention has for its object to provide a test or practice track, especially for motor vehicles, in which the maintenance effort under the same or improved conditions of use should be significantly reduced and in the case of the addition of additional lubricant - especially in normal test mode - can be waived.

According to the invention, this object is achieved in that as a covering for the test or training track with a reduced coefficient of friction hochgleitfähiger plastic, preferably polyethylene is used as a covering. Such so-called "artificial ice" or "artificial ice" are from the sport, z. B. from the ice hockey or the ice-speed and ice skating already known. Accordingly, such pads for a test or practice track can be assembled in a simple manner from individual plates homogeneously and without any disturbing transitions as part of a test section.

On such surfaces z. B. the skate of a skate on a self-releasing from the plastic material liquid overlay. In addition, abrasion is generated by the friction in the form of very small particles, which makes the surface smoother and slipperier during operation. Similarly, the effect of using motor vehicles on such surfaces when accelerating, braking or cornering.

In order to achieve extremely low coefficients of friction, it is also conceivable for such coverings, a spraying with a lubricant, for. B. with water or a water-glycerol mixture.

As a problem in test tracks or traffic training facilities, it is often considered that when spraying the sliding surfaces of the adjacent areas of the test facility are inevitably partially sprayed - by wind and / or wind - mainly in the transition areas with. Thus, the coefficient of friction is lowered there and it does not arise - as desired or required - a sharp friction-jump between the sliding surface and the normal road, with the different behavior of a vehicle at such border areas demonstrated or can be practiced reaction to it.

In a further refinement, the invention proposes that a test track or low-friction test track, which is sprayed by means of a lubricant, be delimited from the areas of the test track adjoining it by means of a compressed-air curtain. For this purpose, the compressed air curtain generating compressed air lines can be embedded in channels immediately adjacent to the test or training track, from which the compressed air emerges in approximately vertical upward as the test or practice track surrounding curtain. Thus, it is effectively prevented that the spray of the lubricant sprayed on the slideway exceeds the adjacent areas.

In the channels for the compressed air lines can be arranged on the side facing the slide in a particularly simple further development of the subject of the invention, the spray nozzles for the lubricant. It is also conceivable to provide these channels at the same time as a return for the running of the sliding surface lubricant. For this purpose, immediately adjacent to the sliding surface of the channel (or the channels) can be covered by gratings.

Features, details and advantageous development of the subject matter of the present invention will be described below with reference to an embodiment which is shown only schematically in the drawing. The drawing shows a section through the sliding surface of a test or training track and a channel assigned to the exercise path for the compressed air curtain or the spray nozzle arrangement for a lubricant and its return or collection.

A test or practice track is usually with a paved or concrete roadway 1 fitted. After the object of the invention, this test or practice track - ie the road 1 - in a partial area with a covering 2 be made of highly lubricious plastic, preferably made of polyethylene.

For the assembly of such a covering 2 it is appropriate - similar to stadiums for ice hockey or ice skating - to assemble this from individual, virtually seamlessly joinable plates.

For normal testing or exercise conditions, it is conceivable to additionally spray the pad 2 To renounce, as with high-quality materials already friction coefficients are achievable, which approach or exceed the friction coefficients of ice or snow cover.

Should the sliding coating 2 for special test or operating conditions additionally with a lubricant, eg. B. sprayed with water or with a water-glycerol solution or other lubricant, it is particularly useful to the coating 2 from the remaining lane 1 through an adjacent or circulating channel 3 delineate. The channel 3 is with a grate 4 level surface to the roadway 1 and to the pad 2 covered. In the grate 4 are the sliding surface / covering 2 associated lubricant outlet nozzles 5 arranged. That over the outlet nozzles 5 Sprayed lubricant 7 can with appropriate tendency of the pavement 2 back to this channel 3 flow and be collected there on the ground.

On the side of the roadway 1 is in the channel 3 a compressed air line 6 , preferably over the entire length of the slideway 2 , (or possibly this also completely surrounding) arranged. About this compressed air line 6 is formed surrounding the slideway or delimiting the test track compressed air curtain, which prevents the slideway 2 adjacent areas of the carriageway 1 also be sprayed with lubricant. This ensures that the high coefficient of friction of the road 1 at the crossing of roadway 1 to sliding coating 2 is ensured and so the corresponding vehicle reactions are demonstrable at this transition point.

That at the bottom of the canal 3 collected lubricants 7 can via a corresponding pump, which is also in the channel 3 may be arranged, the lubricant outlet nozzles 5 - if necessary cleaned or filtered - are fed again.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 3314505 C2 [0003]
• US 6626607 B1 [0003]
• JP 03-137304 [0003]

Claims (10)

Test track of the vehicles, in particular for motor vehicles for the reproduction of driving or acceleration / deceleration conditions at low coefficients of friction, comparable with conditions on rain-wet and / or ice-covered or snow-covered roadways, characterized in that as lining ( 2 ) highly lubricious plastic, preferably polyethylene is used. Test or practice track according to claim 1, characterized in that the covering ( 2 ) is joinable in plate form. Test or practice track according to claim 1, characterized in that the plastic covering ( 2 ) with lubricant ( 7 ) is sprayable. Test or practice track according to claim 3, characterized in that the lubricant ( 7 ) Water is. Test or practice track according to claim 3, characterized in that as lubricant ( 7 ) Glycerin contained liquid on the coating ( 2 ) is aufsprühbar. Test track for vehicles, in particular for motor vehicles for the reproduction of driving or acceleration / deceleration conditions at low coefficients of friction, comparable with conditions on rain-soaked and / or ice-covered or snow-covered roadways, the test or practice track with a lubricant ( 7 ) is sprayable, characterized in that the test or practice track (covering 2 ) opposite adjacent areas of the carriageway ( 1 ) a test or Übungsstrecke by means of a compressed air curtain ( 6 ) is delimitable. Test or practice track according to claim 6, characterized in that the compressed air curtain ( 6 ) adjacent to the test or practice track (covering 2 ) Channel-like embedded compressed air lines can be generated. Test track according to claim 7, characterized in that in the channel ( 3 ) for the compressed air line ( 6 ) on the test or practice track (covering 2 ) facing side spray nozzles ( 5 ) for the lubricant ( 7 ) can be arranged. Test or practice track according to claim 7, characterized in that the channel ( 3 ) as a return and / or collecting space for the lubricant ( 7 ) is trained.  Test or training track for motor vehicles according to one of the preceding claims.

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