Vehicle with a high-voltage accumulator
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorBastian Huber
Life of this patent
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Abstract
A high-voltage accumulator has a high-voltage accumulator housing in which multiple electric storage cells are arranged. A wall of the high-voltage accumulator housing is equipped with at least one aeration/ventilation device which is gas-permeable at least from the interior of the high-voltage accumulator housing to the exterior of the high-voltage accumulator housing such that gas can leak out of the interior of the high-voltage accumulator in the event of an overpressure in the interior of the high-voltage accumulator housing. The aeration/ventilation device is equipped with a device, by which a substance that accumulates on the aeration/ventilation device and partly or completely blocks same can be removed.
Claims8
A vehicle comprising:
- a high-voltage accumulator, comprising:
- a high-voltage accumulator housing in which a plurality of electric storage cells are arrangeable;
- at least one aeration/ventilation device provided in a wall of the high-voltage accumulator housing, the at least one aeration/ventilation device being gas-permeable at least from an interior of the high-voltage accumulator housing to an outer side of the high-voltage accumulator housing so that in an event of an overpressure in the interior of the high-voltage accumulator housing gas escapes from the interior of the high-voltage accumulator housing;
- and
- means, provided for the aeration/ventilation device, for removing a substance which accumulates on the aeration/ventilation device and partially or entirely blocks said aeration/ventilation device;
- a sensor that detects whether the aeration/ventilation device is partially or entirely blocked by the substance;
- and
- monitoring electronics which output a visual and/or acoustic warning message in a passenger compartment of the vehicle when a specified degree of blockage of the aeration/ventilation device by the substance is exceeded,
- wherein the sensor is at least one of:
- (i) a sensor based on an electrical resistance measurement, wherein the resistance to be measured depends on a degree of blockage of the aeration/ventilation device,
- (ii) a sensor based on an optical permeability measurement, wherein the optical permeability of the aeration/ventilation device depends on the degree of blockage of the aeration/ventilation device, or
- (iii) a sensor based on an inductance measurement, wherein an inductance which is to be monitored depends on the degree of blockage of the aeration/ventilation device.
Dependencies are inferred from the claim text.