Engine idle speed control system and method for vehicular gear

An engine idle speed control method for a vehicular gear, wherein an electronic controller judges operation information of a vehicle, controls idle speed stop of an engine and restarts the engine, and the control method comprising:

• determining that a vehicle speed is zero, a throttle position is a predetermined original value, the engine is in an idle speed state, content information of an acquired gear node control signal is neutral and content information of a clutch lever node control signal is “off”, and controlling automatic idle speed stop of the engine by the electronic controller after a predetermined period,
• when the engine is in a predetermined period of idle speed stop,
• determining that the clutch lever node control signal is “on” by the electronic controller, and
• starting the engine by the electronic controller, and
• when the engine is in an idle speed stop state and the predetermined period is exceeded,
• pressing a starter switch to start the engine.

An engine idle speed control method for a vehicular gear, wherein an electronic controller judges operation information of a vehicle, controls idle speed stop of an engine and restarts the engine, and the control method comprising:

• determining that a vehicle speed is zero, a throttle position is a predetermined original value, the engine is in an idle speed state, content information of an acquired gear node control signal is neutral and content information of a clutch lever node control signal is a parking state, determining that a side stand node switch is “off”, and controlling forced idle speed stop of the engine by the electronic controller,
• when the engine is in a predetermined period of idle speed stop,
• determining that the content information of the clutch lever node control signal is “on” by the electronic controller, and
• starting the engine by the electronic controller, and
• when the engine is in an idle speed stop state and the predetermined period is exceeded,
• pressing a starter switch to start the engine.

An engine idle speed control method for a vehicular gear, wherein an electronic controller judges operation information of a vehicle, controls idle speed stop of an engine and restarts the engine, and the control method comprises:

• determining that a vehicle speed is zero, a throttle position is a predetermined original value, the engine is in an idle speed state, content information of an acquired gear node control signal is neutral and content information of a clutch lever node control signal is “off”, and determining that a forced idle speed switch is turned on, controlling manual idle speed stop of the engine by the electronic controller,
• when the engine is in a predetermined period of idle speed stop,
• determining that the content information of the clutch lever node control signal is “on” by the electronic controller, and
• starting the engine by the electronic controller, and
• when the engine is in an idle speed stop state and the predetermined period is exceeded
• pressing a starter switch to start the engine.