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US 2019/0291707 A1Published application
Method of controlling air dryer using compressed air and heaterless air dryer thereof
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorJong-Chul Chun
Life of this patent
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Abstract
An air dryer control method may include a cold mode in which a controller performs a winter season condition control in which air temperature is lowered to freezing temperature if an engine starting is detected, and performs a winter season thawing control in which compressed air introduced into a valve control of an air dryer warms a purge valve of the air dryer.
Claims18
An air dryer control method, comprising:
- a cold mode in which a controller is configured to perform a winter season condition control in which air temperature is lowered to freezing temperature when an engine starting is detected, and is configured to perform a winter season thawing control in which compressed air introduced into a valve control of an air dryer warms a purge valve of the air dryer.
An air dryer, comprising:
- a path switching valve including a first valve, a second valve, and a third valve;
- and
- an air path including:
- a valve-oil removing device line connected to the third valve while being connected to the first valve and the third valve;
- a valve-air compressor line connecting the first valve;
- a valve-cartridge line connecting the second valve to a cartridge removing foreign matters and a purge valve performing a purge operation;
- and
- a purge valve line connecting the third valve to the purge valve, and form a flow of high-temperature/high-pressure compressed air.
5 more elements
Dependencies are inferred from the claim text.