System and method of securing brake booster negative pressure
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorsYoung-Kyu Oh, Youn-Su Kim, Keum-Jin Park
Life of this patent
Estimating the term…
Abstract
A method of securing brake booster negative pressure is provided. The method includes operating a purge pump that is connected to a canister having evaporation gas absorbed thereon and a brake booster and determining whether the evaporation gas is injected into an intake pipe by the operation of the purge pump. Whether a negative pressure of the brake booster is insufficient is determined and when the evaporation gas is being injected into the intake pipe and the negative pressure is insufficient, a degree of opening of a valve provided in a line connecting the canister and the purge pump is adjusted.
Claims16
A method of securing brake booster negative pressure, comprising:
- operating, by a controller, a purge pump connected to a canister having evaporation gas absorbed thereon and a brake booster;
- determining, by the controller, whether the evaporation gas is injected into an intake pipe by the operation of the purge pump;
- and
- determining, by the controller, whether a negative pressure of the brake booster is insufficient,
- wherein when the evaporation gas is being injected into the intake pipe and the negative pressure is insufficient, a degree of opening of a valve provided in a line connecting the canister and the purge pump is adjusted,
- wherein when the negative pressure is insufficient in a state in which the evaporation gas is being injected into the intake pipe and the degree of opening of the valve is adjusted, and operation state of a convenience electronic device mounted to a vehicle is adjusted, and
- wherein the convenience electronic device is repeatedly turned on and off at intervals shorter than a particular period of time when or after an operation thereof is stopped for the particular period of time, or the convenience electronic device is repeatedly turned on and off at increasing intervals for the particular period of time after the operation thereof is stopped for the particular period of time.
A system of securing brake booster negative pressure, comprising:
- a memory configured to store program instructions;
- and
- a processor configured to execute the program instructions, the program instructions when executed configured to:
- operate a purge pump connected to a canister having evaporation gas absorbed thereon and a brake booster;
- determine whether the evaporation gas is injected into an intake pipe by the operation of the purge pump;
- and
- determine whether a negative pressure of the brake booster is insufficient,
- wherein when the evaporation gas is being injected into the intake pipe and the negative pressure is insufficient, a degree of opening of a valve provided in a line connecting the canister and the purge pump is adjusted,
- wherein when the negative pressure is insufficient in a state in which the evaporation gas is being injected into the intake pipe and the degree of opening of the valve is adjusted, and operation state of a convenience electronic device mounted to a vehicle is adjusted, and
- wherein the convenience electronic device is repeatedly turned on and off at intervals shorter than a particular period of time when or after an operation thereof is stopped for the particular period of time, or the convenience electronic device is repeatedly turned on and off at increasing intervals for the particular period of time after the operation thereof is stopped for the particular period of time.
Dependencies are inferred from the claim text.