US 2015/0088401 A1 · THROTTLE LEARNING CONTROL APPARATUS

Abstract

There is obtained a throttle learning control apparatus that raises the reliability of throttle fully closed and opened learning even when a self-shutoff delay abnormality occurs and can suppress various defects that occur when a throttle fully closed learning value or a throttle fully opened learning value is not updated. After a self-shutoff delay abnormality occurs, an electronic control unit implements fully closed learning 1 and fully opened learning 1 while the engine is operated in a non-engine-stall period and implements fully closed learning 2 and fully opened learning 2 for compensating the fully closed learning 1 and fully opened learning 1. Fully closed learning is completed when the fully closed learning 1 or the fully closed learning 2 has once been implemented; similarly, fully opened learning is completed when the fully opened learning 1 or the fully opened learning 2 has once been implemented.

Claims3

Dependent claims

A throttle learning control apparatus having an electronic control unit that receives a signal from a throttle opening degree sensor for detecting an opening degree position of a throttle mounted in an automobile, that makes, in a normal case, fully closed learning of the throttle implemented during a self-shutoff delay period, that sets, as a trip, a cycle from a starting point at which an ignition key switch of the automobile is turned on to an ending point at which the ignition key switch is turned off, and that makes

throttle fully closed learning 1 performed in which fully closed learning of the throttle is implemented when in the trip after a self-shutoff delay abnormality has been detected, a predetermined condition is established while the engine is operated,
throttle fully closed learning 2 performed in which fully closed learning of the throttle is implemented when in the trip after a self-shutoff delay abnormality has been detected, the engine is stopped, and
throttle fully closed learning performed in which when the throttle fully closed learning 1 or the throttle fully closed learning 2 is completed, both the following throttle fully closed learning 1 and throttle fully closed learning 2 are stopped in the trip.

throttle fully closed learning 1 performed in which fully closed learning of the throttle is implemented when in the trip after a self-shutoff delay abnormality has been detected, a predetermined condition is established while the engine is operated,
throttle fully closed learning 2 performed in which fully closed learning of the throttle is implemented when in the trip after a self-shutoff delay abnormality has been detected, the engine is stopped,
throttle fully closed learning performed in which when the throttle fully closed learning 1 or the throttle fully closed learning 2 is completed, both the following throttle fully closed learning 1 and throttle fully closed learning 2 are stopped in the trip,
throttle fully opened learning 1 performed in which fully opened learning of the throttle is implemented when in the trip after a self-shutoff delay abnormality has been detected, a predetermined condition is established while the engine is operated,
throttle fully opened learning 2 performed in which fully opened learning of the throttle is implemented when in the trip after a self-shutoff delay abnormality has been detected, the engine is stopped, and
throttle fully opened learning performed in which when the fully opened learning 1 or the throttle fully opened learning 2 is completed, both the following throttle fully opened learning 1 and throttle fully opened learning 2 are stopped in the trip,
wherein the electronic control unit implements the throttle fully opened learning 2 after the throttle fully closed learning 2 has been completed.

4 more elements

Dependencies are inferred from the claim text.

Throttle learning control apparatus

Life of this patent

Throttle learning control apparatus

Life of this patent

Abstract

Claims3