Abstract: An ISG system makes it possible improve fuel efficiency of a vehicle by achieving an ISG system at a low cost in a vehicle equipped with an automatic transmission and considerably improve commercial quality of a vehicle by relatively reducing the parts and cost for manufacturing the vehicle, without using a sub-oil pump and a hill-start assist control device.

Abstract: An ISG (Idle Stop and Go) display device of an ISG vehicle may include a driving information detecting unit that detects driving information of the vehicle, a memory unit that stores notification about ISG of the vehicle, a control unit that executes the ISG and detects situations of an operation and an abnormality of the ISG by using the driving information of the vehicle which may be input from the driving information detecting unit, and receives the notifications about the ISG which correspond to the situations from the memory unit, and a display unit that may be controlled by the control unit to display the notifications about the ISG in accordance with the situations.

Abstract: A vehicle generating system for saving fuel includes a battery supplying power to electric loads in a vehicle, an electric generator supplying power to the battery and the electric loads, a speed calculation module that calculates operation speed of a wiper in the electric loads, and an ECU including an electric generation control prevention module controlling the electric generator to perform electric generation control prevention when the operation speed calculated by the speed calculation module is compared with a predetermined reference speed and the calculated operation speed is equal to or more than the reference speed, and controlling the electric generator to remove the electric generation control prevention when the operation speed is less than the reference speed.

Abstract: The ISG (Idle Stop & Go) system may include a vehicle information receiving unit receiving a vehicle information, and a control unit including an ISG operation logic which performs an idle stop when a preset idle stop condition is satisfied and restarts the engine when a preset restart condition of the engine is satisfied, and an ISG deactivation determination logic which determines whether a preset ISG deactivation condition is satisfied or not, based on the accumulated number of determinations that the idle stop condition is not satisfied, the accumulated number of idle stops, and the accumulated number of determinations that a performance time of the idle stop is smaller than a preset idle stop retention time, and deactivates the ISG operation logic when the ISG deactivation condition is satisfied.

Abstract: An apparatus for monitoring belt slip in a belt-torque assistance system includes a motor-alternator slip control unit that determines whether the belt connecting the motor-alternator with the engine in accordance with driving modes of a vehicle slips, and restricts operation of the motor-alternator in accordance with the slip of the belt, an ECU that outputs the operation state of the engine to the motor-alternator slip control unit, an inverter that changes an alternate current generated from the motor-alternator into a direct current or a direct current into an alternate current to drive the motor-alternator, and outputs a signal according to the speed of a rotor and power generation load to the motor-alternator slip control unit, and a motor-alternator operation control unit that operates the motor-alternator to generate power from the driving power transmitted from the engine and to assist torque of the engine.

Abstract: A control method of restarting an engine of an AT ISG vehicle may include a first step of restarting the engine when a state of the vehicle satisfies a restart condition after an idle-stop, a second step of keeping a throttle valve constant at a first critical value or less when a positional value of an acceleration pedal may be equal to a second critical value or more after the first step, and a third step of opening a throttle valve until the positional value of the acceleration pedal detected by the acceleration pedal position sensor and a positional value of the throttle valve detected by a throttle valve position sensor may be matched after a critical time passes, a shifting may be completed after the restarting, or when the acceleration pedal may be pressed down less than at the second critical value after the first step.

Abstract: A vehicle generating system for saving fuel includes a battery supplying power to electric loads in a vehicle, an electric generator supplying power to the battery and the electric loads, a speed calculation module that calculates operation speed of a wiper in the electric loads, and an ECU including an electric generation control prevention module controlling the electric generator to perform electric generation control prevention when the operation speed calculated by the speed calculation module is compared with a predetermined reference speed and the calculated operation speed is equal to or more than the reference speed, and controlling the electric generator to remove the electric generation control prevention when the operation speed is less than the reference speed.

Abstract: A vehicle generation controlling system for saving fuel includes a battery supplying power to electric components of a vehicle, a generator generating power by using rotational force of an engine and supplying the generated power to the battery and the electric components, and an ECU determining whether generation control is prevented by monitoring vehicle information on the vehicle and operational information on an operation of an electric product of a cooling system among the electric components and controlling the generator to prevent the generation control according to the determination. As a result, the generation control is performed based on whether an electric product of a cooling system is actuated and vehicle information on the vehicle to thereby prevent cooling performance from being deteriorated due to the generation control.

Abstract: A safety improvement method of an Idle Stop and Go (ISG) function may include: recognizing initial conditions that senses whether an engine is restarted, when the engine is restarted by the ISG, and whether a driver operates a vehicle, and determines whether to warn the driver; warning the driver that makes the driver recognize that the engine is restarted if it is determined to warn the driver in recognizing initial conditions; and stopping the warning that stops warning the driver after warning the drive has been executed. Warning the drive may be achieved by an alarm generated from a buzzer for a predetermined time and a visual screen that is provided for the driver.

Abstract: A method of determining an Idle Stop and Go (ISG) ventilation condition may include an ISG restriction early step that calculates an expected external air temperature through modeling using information acquired from a vehicle and execute an ISG logic to determine whether ISG entrance is possible based on a current ventilation condition of the vehicle, an ISG restriction proceeding step that detects an voltage of an air-conditioning system, an ISG restriction ascertaining step that determines whether an ISG entrance condition is satisfied, wherein the ISG entrance condition includes comparing the expected external air temperature through modeling with a specific temperature and the voltage of the air-conditioning system with a specific voltage, and an ISG entrance step that controls an engine by performing the ISG entrance when the ISG entrance condition is satisfied.

Abstract: A control method of an assist pump for automatic transmission of a vehicle is provided with an ISG system. The control method includes executing idle stop and go, detecting present transmission gear shift and operating an assist hydraulic pump at a predetermined standard RPM according to detected present transmission gear shift. The control method may reduce electric power consumption and enhance battery durability and fuel efficiency.

Abstract: An apparatus for supplementing a brake vacuum pressure, may include an engine control unit (ECU) that generates a vacuum pressure control signal for supplementing the brake vacuum pressure in accordance with the result of determining whether the brake vacuum pressure is included in a reference vacuum pressure range after a vehicle implements an ISG process, a sub-oil pump that is operated in accordance with a control signal from the ECU to supply hydraulic pressure to the inside of an automatic transmission after the vehicle implements the ISG process, a vacuum pump that generates and supplies the brake vacuum pressure to a brake system, and an electronic clutch that selectively couples the sub-oil pump and the vacuum pump to allow driving force of the sub-oil pump to be transmitted to the vacuum pump or to be cut, in accordance with whether the vacuum pressure control signal is sent thereto.

Abstract: An ISG system may include a shift stage sensing unit that senses a shift stage of a transmission, a parking sensing unit that senses a driver's intension of parking by recognizing at least one of whether a vehicle enters a parking lot and whether a parking assistant system may be operated, and an ISG controller that stops an idle-stop of an engine when the shift stage of the shift stage sensing unit may be at a reverse stage or the parking sensing unit senses the driver's intension of parking.

Abstract: An ISG restart control device of an ISG vehicle may include a seatbelt state detecting unit that detects fastening/unfastening state of a seatbelt, a door state detecting unit that detects opening/closing state of a door, a brake pedal state detecting unit that detects an operation state of a brake pedal, and a control unit that forcibly idle-stops or restarts an engine by receiving a driving state information of the vehicle and restricts restarting of the engine in accordance with the fastening/unfastening of the seatbelt, the opening/closing of the door, and the operation state of the brake pedal which may be detected by the seatbelt state detecting unit, the door state detecting unit, and the brake pedal state detecting unit, in the restarting.

Abstract: An ISG control method for a vehicle in a congested area, may include an N-stage stop determining step that determines whether a shift lever has moved from a D-stage to an N-stage and a brake has been operated, discriminating from when the shift lever is at the D-stage; an N-stage vehicle speed determining step that determines whether a vehicle speed is equal to or less than a predetermined N-stage stop vehicle speed after the N-stage stop determining step; and a remaining condition determining step for entering an idle-stop state, when the vehicle speed is equal to or less than the N-stage stop vehicle speed, as a result of performing the N-stage vehicle speed determining step, and when idle-stop entering conditions other than a position of the shift lever, the vehicle speed, and the history of a maximum traveling vehicle speed are satisfied.

Abstract: An ISG system makes it possible improve fuel efficiency of a vehicle by achieving an ISG system at a low cost in a vehicle equipped with an automatic transmission and considerably improve commercial quality of a vehicle by relatively reducing the parts and cost for manufacturing the vehicle, without using a sub-oil pump and a hill-start assist control device.

Abstract: A method and a HAC system controls a hill-state assist control (HAC) operation when restarting an engine of the vehicle having an idle stop and go (ISG) system for an automatic transmission. The method includes starting restarting of the engine by the ISG system and an HAC operation, monitoring the RPM of the engine, and releasing the HAC operation in a case where the RPM of the engine meets an HAC release condition, and maintaining the HAC operation until the HAC release condition is met in a case where the RPM of the engine does not meet the HAC release condition.

Abstract: An ISG (Idle Stop and Go) display device of an ISG vehicle may include a driving information detecting unit that detects driving information of the vehicle, a memory unit that stores notification about ISG of the vehicle, a control unit that executes the ISG and detects situations of an operation and an abnormality of the ISG by using the driving information of the vehicle which may be input from the driving information detecting unit, and receives the notifications about the ISG which correspond to the situations from the memory unit, and a display unit that may be controlled by the control unit to display the notifications about the ISG in accordance with the situations.

Abstract: A device for controlling ISG logic is mounted in a vehicle equipped with an ISG system. The device includes a brake pedal switch, a shift lever switch that shows the current state of a gear of the vehicle, an inclination sensor that is mounted in the vehicle and measures the inclination of a road where the vehicle is positioned, a controller that internally controls the vehicle to an N (Neutral) state, regardless of the gear range shown by the shift lever switch, for the vehicle on a downhill, in accordance with the measured inclination, and an engine unit that performed idle stop when the brake pedal becomes ON, with the gear of the vehicle at a D (Drive) sate, and restarts the stopped engine when the brake pedal becomes OFF, with the gear of the vehicle at the D state.

Abstract: A device controls ISG (Idle Stop & Go) logic mounted in a vehicle equipped with an ISG system. The device includes a transmitting unit that shows the current state of a gear in the vehicle and controls the hydraulic pressure of a transmission in idle stop or restarting an engine, a driving unit that performs the idle stop when the pedal of a brake becomes ON, with the gear at a D (Drive)-range, and restarts the engine when the pedal of the brake becomes OFF, with the gear of the vehicle at the D-range, and a brake unit that controls movement of the vehicle by controlling the hydraulic pressure of the brake, in which brake unit controls the hydraulic pressure of a brake to be kept for a predetermined time from when the pedal of the brake becomes OFF.