Method and system for predicting replacement time of cartridge of air processing unit
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorDong Wook Kim
Life of this patent
Estimating the term…
Abstract
A method and system of predicting a replacement time of a cartridge for an air processing unit (APU) of a vehicle, include: checking an internal pressure of an air tank by a controller when an engine of the vehicle is started; calculating and accumulating a passing flow amount through the cartridge of the APU using a pressure change due to filling the air tank with air; and determining that the replacement time of the cartridge has been reached when an accumulated total passing flow amount exceeds a predetermined value. Therefore, it is possible to predict the replacement time of the cartridge by calculating an air flow amount based on the pressure change of the air tank.
Claims6
A method of predicting a replacement time of a cartridge for an air processing unit (APU) of a vehicle, the method comprising:
- checking, by a controller, an internal pressure of an air tank when an engine of the vehicle is started;
- calculating and accumulating, by the controller, a passing flow amount through the cartridge of the APU using a pressure change due to filling the air tank with air;
- and
- determining, by the controller, that the replacement time of the cartridge has been reached when an accumulated total passing flow amount exceeds a predetermined value.
A system for predicting a replacement time of a cartridge for an air processing unit (APU) of a vehicle, the system comprising:
- a pressure checker configured to check a pressure of an air tank detected through a pressure sensor;
- a passing flow amount calculator configured to calculate a passing flow amount through the cartridge of the APU using a pressure change due to filling the air tank with air, and accumulating and storing the flow amounts;
- and
- a replacement time determiner configured to determine that the replacement time of the cartridge has been reached, when a total passing flow amount accumulated by the passing flow amount calculator exceeds a predetermined value.
A non-transitory computer readable medium containing program instructions executed by a processor, the computer readable medium comprising:
- program instructions that check an internal pressure of an air tank when an engine of a vehicle is started;
- program instructions that calculate and accumulate a passing flow amount through a cartridge of an air processing unit (APU) using a pressure change due to filling the air tank with air;
- and
- program instructions that determine that the replacement time of the cartridge has been reached when an accumulated total passing flow amount exceeds a predetermined value.
Dependencies are inferred from the claim text.