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US 2017/0284268 A1Published application
Engine control apparatus
AssigneeHitachi Automotive Systems, Ltd.
InventorsShinji NAKAGAWA, Toshio HORI
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Abstract
Provided is an engine control apparatus capable of detecting degradation in particulate filter performance. An input unit receives a first signal indicating an exhaust gas state (Tpf_2) inside or downstream of a particulate filter that traps particulate substance contained in engine exhaust gas. A determination unit 16a determines whether the particulate filter is degraded on the basis of the exhaust gas state (Tpf_2) indicated by the first signal in a period (fFC=1) in which fuel supply to the engine is blocked.
Claims15
An engine control apparatus, comprising:
- an input unit which receives a first signal indicating a state of exhaust gas in an inside or downstream of a particulate filter trapping particulate substances contained in the exhaust gas of an engine;
- and
- a determination unit which determines whether the particulate filter is degraded, on the basis of the state of the exhaust gas indicated by the first signal, in a period in which fuel supply to the engine is blocked.
Dependencies are inferred from the claim text.