Engine control device and engine control method
AssigneeYamabiko Corporation
InventorsMinoru KUROIWA, Ryosuke IMAI, Takahiro YAMAZAKI
Life of this patent
Estimating the term…
Abstract
An engine control device that regulates fuel to be supplied to an engine including: a starting fuel supply valve that supplies starting fuel to air to the engine or to an air-fuel mixture of air and fuel in starting the engine; an engine temperature detection unit that detects an engine temperature of the engine; an engine speed detection unit that detects the engine speed of the engine; and a control unit that controls the starting fuel supply valve to open and close to control the engine, in which the control unit controls an opening time of the starting fuel supply valve according to the engine temperature and the engine speed.
Claims6
An engine control device, comprising:
- a starting fuel supply valve configured to supply starting fuel to air to an engine or to an air-fuel mixture of air and fuel in starting the engine;
- a temperature sensor configured to detect an engine temperature of the engine;
- an engine speed detection unit configured to detect an engine speed of the engine;
- and
- a processor configured to control the starting fuel supply valve to open and close to control the engine, wherein
- the processor is configured to
- control an opening time of the starting fuel supply valve according to the engine temperature and the engine speed, wherein the opening time is a time duration in which the starting fuel supply valve is open, and
- in response to the engine temperature being equal to or higher than 30° C. and the engine speed being equal to or higher than 3000 rpm, control the opening time of the starting fuel supply valve to extend as (i) the engine speed increases or (ii) the engine temperature increases.
An engine control method of regulating fuel to be supplied to an engine, the engine control method comprising:
- starting, the engine toward a targeted idle speed by a processor;
- acquiring, an engine speed of the engine from an engine speed detection unit and an engine temperature of the engine from a temperature sensor by the processor;
- reading out, information in a setting map of an opening time of a starting fuel supply valve based on the engine speed and the engine temperature by the processor, wherein the opening time is a time duration in which the starting fuel supply valve is open;
- and
- controlling, the starting fuel supply valve to open based on the opening time of the starting fuel supply valve in the read-out setting map by the processor, wherein in response to the engine temperature being equal to or higher than 30° C. and the engine speed being equal to or higher than 3000 rpm, the opening time of the starting fuel supply valve is set in the setting map to extend as (i) the engine speed increases or (ii) the engine temperature increases.
Dependencies are inferred from the claim text.