Dynamic opacity variation for vehicle roof glass system
AssigneeRivian IP Holdings, LLC
InventorsDaniel Loren HEPLER, Glenn FEINBERG
Life of this patent
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Abstract
Aspects of the subject disclosure relate to dynamic opacity variation for a glass system. A device implementing the subject technology may include a glass system and a controller configured to cause modulation of an input voltage supply to generate a pair of differential bias voltage signals. The controller may also cause one or more adjustments to an opacity of the glass system using the pair of differential bias voltage signals. In some aspects, the one or more adjustments correspond to different levels of opacity between an opaque state and a transparent state of the glass system.
Claims20
A system, comprising:
- a glass system;
- and
- a controller configured to:
- cause modulation of an input voltage supply to generate a pair of differential bias voltage signals;
- and
- cause one or more adjustments to an opacity of the glass system using the pair of differential bias voltage signals, wherein the one or more adjustments correspond to different levels of opacity between an opaque state and a transparent state of the glass system.
A method, comprising:
- generating a plurality of differential bias voltage signals by modulating an input voltage supply with a plurality of input pulse width modulation signals;
- and
- biasing a glass system of a vehicle with the plurality of differential bias voltage signals to adjust an opacity of the glass system, wherein adjustment to the opacity corresponds to one or more different levels of opacity between an opaque state and a transparent state of the glass system.
A vehicle, comprising:
- a battery;
- a glass system;
- a power converter configured to:
- receive an input voltage supply from the battery;
- and
- convert the input voltage supply from a first voltage to a second voltage greater than the first voltage;
- an inverter coupled to the power converter and configured to generate a pair of differential bias voltage signals by modulating the input voltage supply at the second voltage with a plurality of input pulse width modulation signals;
- and
- a controller configured to cause one or more adjustments to an opacity of the glass system with the pair of differential bias voltage signals, wherein the one or more adjustments correspond to different levels of opacity between an opaque state and a transparent state of the glass system.
Dependencies are inferred from the claim text.