Method and apparatus for automatically stopping engine idling of automotive vehicle during stop of vehicle
AssigneeNissan Motor Co., Ltd.
InventorMasaaki Uchida
Life of this patent
Estimating the term…
Abstract
In method and apparatus for automatically stopping an engine idling for an automotive vehicle, a vehicular velocity it detected, a brake manipulated variable of a brake manipulator is detected, the brake manipulated variable is compared with a predetermined criterion to determine whether a brake manipulator is operated, the engine is stopped when the vehicular velocity is detected to be zero and the brake manipulator is determined to be operated, the engine is re-stated when an operation of the brake manipulator is released the brake manipulated variable is determined after the vehicular velocity is zero and the brake manipulator is operated, and the predetermined criterion is updated on the basis of the learning value.
Claims12
A method for automatically stopping an engine idling for an automotive vehicle, comprising:
- detecting a vehicular velocity;
- detecting a brake manipulated variable of a brake manipulator;
- comparing the brake manipulated variable with a predetermined criterion of the brake pedal manipulation to determine whether a brake manipulator is operated:
- stopping the engine when detecting that the vehicular velocity is zero and determining that the brake manipulator is operated;
- re-starting the engine when an operation of the brake manipulator is released;
- determining a learning value of the brake manipulated variable after the vehicular velocity is zero and determining that the brake manipulator is operated;
- and
- updating the predetermined criterion on the basis of the learning value.
An apparatus for automatically stopping an engine idling for an automotive vehicle, comprising;
- a vehicular velocity sensor to detect a vehicular velocity;
- a brake sensor to detect a brake manipulated variable;
- a controller programmed to compare the brake manipulated variable with a predetermined criterion to determine whether a brake manipulator is operated, to stop the engine when the vehicular velocity is detected to be zero and determining that the brake manipulator is operated, the engine being re-started when an operation of the brake manipulator is released, to determine a learning value of the brake manipulated variable after the vehicular velocity is zero and determining that the brake manipulator Is operated, and to update the predetermined criterion on the basis of the learning value.
An apparatus for automatically stopping an engine idling for an automotive vehicle, comprising:
- means for detecting a vehicular velocity;
- means for detecting a brake depression angle of a brake pedal;
- means for comparing the brake depression angle with a predetermined criterion of the brake pedal depression angle to determine whether the brake pedal is depressed;
- means for stopping the engine when detecting that the vehicular velocity is zero and the comparing means determines that the brake pedal is depressed;
- means for re-starting the engine when a depression of the brake pedal is released;
- means for determining a learning value of the brake pedal depression angle after the vehicular velocity is zero and determining that the brake pedal is depressed;
- and
- means for updating the predetermined criterion on the basis of the learning value.
Dependencies are inferred from the claim text.