Hyundai Kona: ISG (Idle Stop & Go) System / Schematic diagrams
| Operation Condition for
the ISG function |
Operation Condition for the ISG function
After every engine start, the function is automatically active and on stand-by.
The ISG OFF switch can be used to deactivate the function manually until the
next terminal change. Pressing the switch is confirmed by an lamp lighting up.
| 1. Idle Stop (Idle → Stop) Condition |
▶ Common Condition : Neutral Status & Clutch Pedal Released
Conditions Required
|
The engine coolant temperature is not too low (Over 45 degree).
|
Not DPF regeneration
|
Not inhibitor condition for operating strategy or engine fault
| – |
CKPS, CMPS, ECTS, VSS, Battery sensor, BBVPS, Neutral Switch,
Clutch Switch, APS, Injector
|
|
Battery charge status is adequately high.
|
Not communication line error - LIN, CAN
|
Vehicle speed less than 5kph
|
Vehicle speed over 10kph at least once after key starting or idle starting
|
ISG OFF switch off
|
Driver's seat belt and Driver's Door and hood are closed.
|
Battery temperature is between 2 to 55 degree.
|
Brake booster pressure not to low.
|
Not Blower max.
|
▶ Common Condition : Neutral Status & Clutch Pedal Pressed
Conditions Required
|
Not inhibitor condition for operating strategy or engine fault
| – |
CKPS, CMPS, ECTS, VSS, Battery sensor, Neutral Switch, Clutch
Switch, APS
|
|
Not communication line error - LIN, CAN
|
Driver's seat belt and Driver's Door or hood are closed.
|
Engine stalled, then changed gear position (engaged → neutral) and pressed
clutch pedal.
|
| 2. Idle Start (Stop → Start) Condition
|
| • |
If error occurred in the idle stop status, it is possible to
start the engine by the key only.
|
|
| 3. Auto-starting (Stop → Start) Condition
|
The engine will start automatically without the driver's action if any of the
following occurs:
▶ Common Condition : Neutral Status & Clutch Pedal Released
Conditions Required
|
Not inhibitor condition for operating strategy
| – |
TPS, CKPS, CMPS, ECTS, VSS, Battery sensor, BBVPS, Neutral Switch,
Clutch Switch
|
|
Brake booster vacuum pressure is low.
|
When the battery charge status is low.
|
A certain amount of time has passed after the air conditioning is On.
|
Vehicle speed is over 5kph by rolling down a hill.
|
Blower Max.
|
|
ISG system deactivation by fault
| • |
Fault in communication line (LIN/CAN)
|
| • |
Fault brake booster vacuum pressure sensor
|
When the ISG related sensors or system error occurs, the ISG OFF switch
lights up.
Especially when the battery sensor is replaced or reinstalled, the vehicle
must be placed in the ignition switch OFF for about 4 hours for recalibration.
The ISG function is operated about 4 hours later normally.
|
| • |
When the engine is in Idle stop mode, it's possible to restart
the engine without the driver taking any action.
Before leaving the car or doing anything in the engine room
area, stop the engine by turning the ignition key to the LOCK
position or removing it.
|
|
Components Location
1. Battery
sensor
2. Brake Booster Vacuum Pressure Sensor (BBVPS)
3. AGM battery
4. DC/DC Converter [200W]
5. DC/DC Converter [450W]
...
Description
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