A rail vehicle (10, fig 1) with an LED headlight that includes lights 21H, 22H, 23H for illuminating a far region and lights 31L, 32L, 33L for illuminating a near region in the traveling direction of the vehicle, e.g. using different optical axes (see figure 10). The sources are split into two groups, one including both near and far region light sources and the other including a near light source 33L. The groups can be selectively lit, e.g. using a switch 11, so that the either both regions or just the near region can be lit up, effectively dimming the lights to avoid dazzling drivers of oncoming trains travelling in the opposite direction. Standby light sources 22H, 32L are included to substitute for a light source that fails, with switches 91, 93, 101, 103 controlled according to the outputs of current detectors 41L,H and 43L,H. The light sources may be connected in parallel and may each include a plurality of LEDs connected in series.
Rail vehicle equipped with LED headlight
2018-10-17
Patent
Electronic Resource
English
IPC: | B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES / B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC |
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