Braking device for vehicles
AssigneeRobert Bosch GmbH
InventorFrank Schumann
Life of this patent
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Abstract
The invention relates to a braking device (10) having a spindle gear (18, 20) for actuating a friction brake (14, 16), a gear drive (30, 36) for driving the spindle gear (18, 20) and having an electric motor (40) for driving the gear drive (30, 36). For safety reasons, the invention proposes a second electric return motor (34) for releasing the friction brake (14, 16). Particularly when the two electric motors (34, 40) are connected to mutually independent power supplies, this has the advantage that the friction brake (14, 16), if one of the two electric motors (34, 40) or one of the two power supplies fails, can be released with the other electric motor (40, 34).
Claims9
A braking device (10) for vehicles, comprising a friction brake with an actuating device (18, 20), said friction brake (14, 16) is actuated by a first electric motor (40) that activates the actuating device and a second electric motor (34) that releases the activating device via gear wheels (30 and 36), and that the first and second electric motors (34, 40) are connected to first and second mutually independent power supplies.
Dependencies are inferred from the claim text.