Control method for ISG of vehicle equipped with manual transmission

An idle stop and go (ISG) control method for a vehicle provided with a manual transmission, the ISG control method comprising:

• determining, by a controller, whether a first operation determination condition is satisfied based on a bottom signal from a clutch pedal sensor, a brake pedal operation signal, and a first vehicle speed signal condition;
• determining, by the controller, whether a second operation determination condition is satisfied based on the bottom signal from the clutch pedal sensor, the brake pedal operation signal, and a second vehicle speed signal condition;
• stopping, by the controller, an engine of the vehicle, regardless of a transmission stage of the manual transmission, when the first operation determination condition or the second operation determination condition is satisfied;
• determining, by the controller, whether a first restart condition is satisfied based on a top signal or the bottom signal from the clutch pedal sensor;
• and
• restarting, by the controller, the engine by driving an operating motor connected with the engine when the first restart condition is satisfied.