Oxygen sensor diagnosis control system of hybrid electric vehicle
AssigneeHyundai Motor Company
InventorJea Mun Lee
Life of this patent
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Abstract
An oxygen sensor diagnosis control system of a hybrid electric vehicle is provided. The system of a hybrid electric vehicle eliminates an uncertainty of the number of diagnoses of an oxygen sensor and restrains diagnoses of the oxygen sensor in a hybrid electric vehicle. The system of a hybrid electric vehicle includes a hybrid controller operates a vehicle, and determines conversion of an oxygen sensor diagnosis mode based on a result obtained by calculating an oxygen sensor diagnosis index. Additionally, the controller determines whether a condition for diagnosing an oxygen sensor is satisfied when the oxygen sensor diagnosis index decreases to initiate a diagnosis inducing mode or a compulsory diagnosis mode.
Claims7
An oxygen sensor diagnosis control system of a hybrid electric vehicle comprising:
- a memory configured to store program instructions;
- and
- a hybrid controller configured to execute the program instructions, the program instructions when executed configured to:
- to control an overall function of a vehicle, wherein the hybrid controller is configured to determine conversion of an oxygen sensor diagnosis mode based on a result obtained by calculating an oxygen sensor diagnosis index, and configured to determine whether a condition for diagnosing an oxygen sensor is satisfied when the oxygen sensor diagnosis index decreases to initiate a diagnosis inducing mode or a compulsory diagnosis mode.
An oxygen sensor diagnosis apparatus of a hybrid electric vehicle, comprising:
- a hybrid controller configured to operate an overall function of a vehicle;
- and
- an oxygen sensor configured to calculate an oxygen sensor diagnosis index,
- wherein the hybrid controller is configured to determine whether a condition for diagnosing an oxygen sensor is satisfied when the oxygen sensor diagnosis index decreases and initiate a diagnosis inducing mode or a compulsory diagnosis mode.
Dependencies are inferred from the claim text.