US 11,215,527 B2 · Headlight setting test device, headlight setting test station, headlight setting device and method for testing a headlight setting

Abstract

The present invention relates to a headlight setting test device comprising a lens, which directs an image of the tested headlight on a monitor, comprising a data memory, which stores the height difference between the contact area of a rear wheel arranged on the side of the relevant headlight being tested and the contact area of the corresponding front wheel or a value corresponding to said height difference, and comprising a correction possibility—taking account of the relevant height difference or value—for the position of the image on the monitor, as a result of which the effect of the height difference on the assessment of the relevant setting of the relevant headlight is able to be compensated for. The invention furthermore relates to a headlight setting station, a headlight setting device and a method for testing a headlight setting.

Claims18

Dependent claims

A test apparatus for headlamps of vehicles, comprising:

a lens directing an image of the tested headlamp to a monitor,
a data memory for data corresponding to the topography of a floor area of a headlamp setting test station, the data relating to respective vertical differences between possible contact patches of a rear wheel and possible contact patches of a front wheel of a vehicle present on the floor area of the headlamp setting test station, or values corresponding to these vertical differences,
a correction possibility for the position of the image on the monitor that takes account of the respective vertical difference or value, whereby the effect of the vertical distance on the evaluation of the respective setting of the respective headlamp can be compensated;
and
an input option for respective positional indications corresponding to the position of at least the rear wheel of the tested vehicle.

2 more elements

A method of testing a headlamp using a lens directing an image of a tested headlamp of a vehicle standing on a floor area of known topography to a monitor, wherein a vertical difference between a contact patch on the floor area of a rear wheel arranged on a side of the vehicle corresponding to the respective tested headlamp and a contact patch on the floor area of the corresponding front wheel or a value corresponding to this vertical difference, is determined from the known topography, is stored and a correction value for the expected position of the image on the monitor with a correct setting of the headlamp is determined, the effect of the vertical difference on the evaluation of the respective setting of the respective headlamp is compensated, and the test is carried out while taking account of the compensated vertical difference.

A method of testing a headlamp using a lens directing an image of the headlamp to a monitor, wherein:

a vertical difference between a contact patch on the floor area of a rear wheel arranged on the side of the respective tested headlamp and the contact patch of the corresponding front wheel or a value corresponding to this vertical difference is stored and a correction value for the expected position of the image on the monitor with a correct setting of the headlamp is determined;
the effect of the vertical difference on the evaluation of the respective setting of the respective headlamp is compensated;
and,
the headlight setting test is carried out while taking account of the compensated vertical difference;
wherein a plurality of values for vertical differences are determined for different possible positions of the contact patches of a rear wheel with respect to possible contact patches of a front wheel and are stored in a data memory;
and,
wherein the respective position of the contact patch of the rear wheel with respect to the contact patch of the front wheel is used in the carrying out of the test of the headlamp setting to select the respective current value from the stored values and with the respective current value being taken into account for the required compensation.

4 more elements

Dependencies are inferred from the claim text.

Headlight setting test device, headlight setting test station, headlight setting device and method for testing a headlight setting

Life of this patent

Headlight setting test device, headlight setting test station, headlight setting device and method for testing a headlight setting

Life of this patent

Abstract

Claims18