[ Model - ECLIPSE CROSS / Year - 2018 ]
2018 / ECLIPSE CROSS / EC - Technical Information Manual
42 -BODY > 42B-KEYLESS OPERATION SYSTEM (KOS) > SYSTEM OPERATION > OSS (one-touch start system)
OSS (ONE-TOUCH START SYSTEM)
 
 
 
 
With the one-touch start system, when the engine switch mounted inside the vehicle is operated, KOS&OSS-ECU receives the stop lamp switch input signal from the brake pedal <CVT>, the P range detection switch input signal from the selector lever assembly <CVT>*, the clutch switch input signal from clutch pedal <M/T> and performs the certification communication with keyless operation key using KOS&OSS-ECU, the certification communication with electric steering lock, and the engine start certification communication with engine-ECU. Only when the input signals and certification communications are valid, the one-touch start system performs the power supply changeover control, the electric steering lock locking/unlocking control, and the engine start control.
note*: KOS&OSS-ECU receives the signal only when the engine starts or switching the power supply mode OFF.

 
 
ONE-TOUCH START SYSTEM VALID AREA
The one-touch start system can be activated by the pressing of engine switch only when the keyless operation key is located within the interior antenna receiving area.
 
note
 
If the keyless operation key battery is flat, by holding the keyless operation key with the flat battery on the engine switch, the one touch start system (power switching, engine start) becomes usable. Within approximately 30 seconds after pressing the engine switch or with keeping your foot on the brake pedal <CVT> or clutch pedal <M/T>, hold the keyless operation key running out of a battery as shown, put the emergency key toward the top and put the lock/unlock button toward the front. Align the aligning point with the engine switch centre and touch. When the key is authenticated, the indicator of the engine switch is illuminated in green for about 10 seconds. While the indicator of the engine switch is illuminated, when the engine switch is pressed with the brake pedal <CVT> or clutch pedal <M/T> being depressed, the engine starts. While the indicator of the engine switch is illuminated, when the engine switch is pressed with the brake pedal <CVT> or clutch pedal <M/T> being released, the power mode is switched.

 
 
Power supply switching control and electric steering lock control (Operation description)
 
Power supply switching control and electric steering lock unlock control process
<1>Under the power "OFF" status, operate the engine switch without depressing the brake pedal.
<2>When the driver operates the engine switch, the KOS&OSS-ECU communicates with the registered keyless operation key to determines whether the engine can be started. The KOS&OSS-ECU sends power supply signal to the electric steering lock.
<3>The KOS&OSS-ECU communicates with the electric steering lock via LIN to judge whether the steering can be unlocked. The electric steering lock evaluates authorisation result sent by the KOS&OSS-ECU. If the result is correct, the system unlocks the steering lock.
<4>After the certification communication with the electric steering lock, KOS&OSS-ECU sends the ACC output to ETACS-ECU. Then, ETACS-ECU drives the internal ACC relay to turn the power to "ACC".
<5>With the power supply set to "ACC", when the engine switch is operated again without depressing the brake pedal <CVT> or the clutch pedal <M/T>, KOS&OSS-ECU sends the IG1 output. Then, the current is supplied to the IG1 relay in ETACS-ECU, thus driving the IG1 relay and turning the power "ON". (At this time, KOS&OSS-ECU also communicates with engine-ECU to certify the engine start.)
<6>With the power supply set to "ON", when the engine switch is operated again without depressing the brake pedal <CVT> or the clutch pedal <M/T>, the power is turned "OFF" when the selector lever is in the P position <CVT>, or the power is turned to "ACC" when in other than the P position <CVT>. When the vehicle speed information, which is received via CAN, cannot be received or when the vehicle speed is 3 km/h or more, any standard engine switch operations will not be accepted. However, the power can be turned to "ACC" by the emergency stop operation*.
note*: The emergency stop operation refers to the operation to press and hold the engine switch for 3 seconds or longer, or to repeatedly press the engine switch 3 times or more within 1 second. After the emergency stop operation, KOS&OSS-ECU will not accept the engine switch operation for 2 seconds.

 
 
Electric steering lock locking control (Operation description)
 
Flow of electric steering lock locking control
•Lock status of electric steering lock
<1>The KOS&OSS-ECU will lock the steering when any of the following conditions below is satisfied while the power supply mode is at "OFF" with the selector lever at P position.
  • When the driver’s door signal sent by the ETACS-ECU changes (closed <=> open).
  • When door signals sent by the ETACS-ECU change (all doors closed* <=> any door open*).
    note*: The tailgate is included.
  • When the lock button in the keyless operation key is pressed.
  • When the vehicle is locked by using the KOS door entry function.
<2>The KOS&OSS-ECU sends the power supply permission signal to the electric steering lock unit when the electric steering lock control is activated, and communicates via LIN (local communication) for authorisation. The electric steering lock control unit communicates with the KOS&OSS-ECU to judge whether the steering lock can be activated. If authorisation results are matched, the built-in actuator locks the steering.

 
 
Engine start control (Operation description.)
 
Flow of engine start control
<1>Depress and hold the brake pedal <CVT> or the clutch pedal <M/T> with the power supply mode at "OFF", and then operate the engine switch.
•The authorisation results from the KOS&OSS-ECU and the electric steering lock are matched (Refer to Step <2> to <3> of power supply switching control.)
<2>The KOS&OSS-ECU sends authentication (via CAN) and starter activation (via hard wires) requests to the engine-ECU.
<3>Energises the starter relay to crank the engine. Also, the engine-ECU compares its own authorisation result with the authorisation signal from the KOS&OSS-ECU. If they are matched, the engine will be started. (If the authorisation results are not matched, the engine-ECU deenergises the starter relay and the injectors. Also, the KOS&OSS-ECU deactivates the starter).
<4>After the engine has started, the KOS&OSS-ECU deactivates the starter.