System Description
THEFT DETERRENT / KEYLESS ENTRY: SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Entry Function): SYSTEM DESCRIPTION
CAUTION:
If using a pacemaker, be sure to read the manual of the pacemaker before using the key, as the radio waves of the key may affect the pacemaker.
1. SMART ACCESS SYSTEM WITH PUSH-BUTTON START DESCRIPTION
(a) In addition to conventional mechanical key and wireless door lock control functions, the smart access system with push-button start enables door locking/unlocking and hybrid control system starting without operating the key. The only requirement is that the key is in the user's possession.
* This system is controlled by the certification ECU (smart key ECU assembly). When the certification ECU (smart key ECU assembly) detects the presence of the smart access system with push-button start in one of the detection areas, it identifies and checks the ID code, and outputs operation signals to the related ECU in accordance with their functions.
* The detection areas are formed by 6 oscillators (2 door oscillators, 1 outside oscillator and 3 indoor oscillators).
2. DETECTION AREA
Text in Illustration
3. FUNCTION OF MAIN COMPONENTS
4. CONSTRUCTION AND OPERATION
(a) Key
The key consists of a mechanical key, transmitter for wireless door lock control and transceiver for the smart access system with push-button start.
* The transceiver function for the smart access system with push-button start receives the signals from the oscillators and sends the ID code to the tuner.
* The transmitter function for the wireless door lock control has a lock switch, unlock switch, panic switch and luggage compartment switch.
* This mechanical key works for the driver door and glove box, but cannot start the hybrid control system.
A total of 7 keys can be registered.
(1) Key (for Standard):
Text in Illustration
(2) Key (for Card Type):
Text in Illustration
(b) Oscillator (door electrical key oscillator (for driver side and front passenger side), indoor electrical key oscillator (for front floor, rear floor and luggage compartment) and outside electrical key oscillator (for luggage compartment))
Each oscillator transmits the request signal received from the certification ECU (smart key ECU assembly), and forms a key detection area to detect the presence of a key. The detection area formed by door electrical key oscillator (for driver side and front passenger side) and outside electrical key oscillator (for luggage compartment) is approximately 0.7 to 1.0 m (2.30 to 3.28 ft.) from the door outside handle assembly of door (for driver side, front passenger side) or the center of the rear bumper.
* The detection area of the door electrical key oscillators (for driver side and front passenger side) is formed by transmitting a request signal periodically while the power switch is off and the doors (for driver side and front passenger side) are locked. In this way, the oscillators detect the proximity of a key. During entry lock, the detection area is formed with the lock sensor on.
* The detection area of the outside electrical key oscillator (for luggage compartment) is formed when the luggage compartment door opener outer switch is on.
* The detection area of the indoor electrical key oscillator (for luggage compartment) is formed when the luggage compartment door is closed or the luggage compartment open switch is pressed.
* The detection area of the indoor electrical key oscillators (for front floor and rear floor) is formed when any door is opened or closed, when the hybrid control system starts, when a warning is activated, or when a lock sensor on a door outside handle assembly or the lock switch on the luggage compartment door opener outer switch is on.
5. ENTRY FUNCTION OPERATION
(a) The smart access system with push-button start has the following functions:
6. WIRELESS DOOR LOCK CONTROL SYSTEM FUNCTION
Push the lock/unlock/panic/luggage compartment switch on the key to operate each function. For details, Operation Check.
7. ENTRY UNLOCK FUNCTION
(a) When the key enters any exterior detection area of a front door, the certification ECU (smart key ECU assembly) judges and certifies the key ID code received from the door control receiver.
(b) After the key certification OK is confirmed, the certification ECU (smart key ECU assembly) transmits an unlock stand-by signal to the touch sensor of the relevant door.
(c) If a touch sensor is touched in this condition, the certification ECU (smart key ECU assembly) transmits a door unlock request signal to the main body ECU (multiplex network body ECU), and unlocks either the driver door or all doors.
* The front door outside handle assembly (for driver side) unlocks the driver door.
* The front door outside handle assembly (for front passenger side) unlocks all doors.
(d) The main body ECU (multiplex network body ECU) sounds the wireless door lock buzzer twice, and the main body ECU (multiplex network body ECU) flashes the hazard warning lights twice, as an answer back for entry unlock.
8. ENTRY LOCK FUNCTION
(a) The entry lock signal is transmitted to the certification ECU (smart key ECU assembly) when the user (who has the key in their possession) exits the vehicle and touches a lock sensor on a door outside handle assembly.
(b) The certification ECU (smart key ECU assembly) transmits a request signal for the indoor electrical key oscillators (for front floor and rear floor), door electrical key oscillators (for driver side and front passenger side) and outside electrical key oscillator (for luggage compartment) to form detection areas.
(c) The certification ECU (smart key ECU assembly) judges and certifies the ID code. It then checks the location of the key, and if all doors are closed, the ECU transmits a door lock signal to the main body ECU (multiplex network body ECU).
(d) The main body ECU (multiplex network body ECU) receives this signal and actuates the lock motors.
(e) The main body ECU (multiplex network body ECU) blinks the hazard warning lights once and if sounds the wireless door lock buzzer once as an answer back for the entry lock function.
9. ENTRY LUGGAGE COMPARTMENT OPEN FUNCTION
(a) The unlock signal is transmitted to the certification ECU (smart key ECU assembly) from the luggage compartment door opener outer switch.
(b) The certification ECU (smart key ECU assembly) transmits a request signal for the outside electrical key oscillator (for luggage compartment) to form a detection area.
(c) The key receives this signal and returns the ID code to the door control receiver.
(d) The certification ECU (smart key ECU assembly) judges and certifies the ID code, and checks the location of the key. The ECU transmits a luggage compartment door open signal to the main body ECU (multiplex network body ECU).
(e) The main body ECU receives this signal and actuates the motor to open the luggage compartment door.
10. PREVENTION OF KEY CONFINEMENT FUNCTION
(a) The key confinement prevention function prevents the key from being locked in the vehicle.
(1) When the door is locked by the lock knob in the inside door handle while the key is still in the vehicle, the main body ECU (multiplex network body ECU) receives this signal and transmits the door condition signal to the certification ECU (smart key ECU assembly).
(2) The certification ECU (smart key ECU assembly) transmits a request signal for the indoor electrical key oscillators (for front floor and rear floor) to form detection areas.
(3) The key receives this signal and returns the ID code to the door control receiver.
(4) The certification ECU (smart key ECU assembly) judges and certifies the ID code, and checks the location of the key. The ECU transmits a door unlock signal to the main body ECU (multiplex network body ECU).
(5) The main body ECU (multiplex network body ECU) receives this signal and actuates the all door lock assemblies to unlock.
(6) The certification ECU (smart key ECU assembly) sounds the wireless door lock buzzer and buzzer in the combination meter as an answer back for unlock.
(b) The key confinement prevention function prevents the key from being locked inside the luggage compartment.
(1) When the luggage compartment door is closed while the key is still inside the luggage compartment and all doors are locked, the certification ECU (smart key ECU assembly) recognizes that a luggage compartment door close condition has occurred based on signals from the main body ECU (multiplex network body ECU).
(2) The certification ECU receives this signal, and transmits a request signal for the indoor electrical key oscillator (for luggage compartment) to form a detection area.
(3) The key receives this signal and returns the ID code to the door control receiver.
(4) The certification ECU (smart key ECU assembly) receives the ID code from the door control receiver, and then judges and certifies the ID code, and checks the location of the key. The main body ECU (multiplex network body ECU) sounds the wireless door lock buzzer for 2 seconds to inform the user.
(5) If the luggage compartment door opener outer switch is turned on while the key is inside the luggage compartment, the certification ECU (smart key ECU assembly) sends another request signal for the indoor electrical key oscillator (for luggage compartment) to form a detection area. The ECU judges and certifies the key and checks its location, before transmitting a luggage compartment door open signal to the main body ECU (multiplex network body ECU).
11. ENTRY ILLUMINATION FUNCTION
(a) When a person carrying the key enters a detection area, the door will enter unlock standby mode and the front map light and door mirror foot light will illuminate.
HINT
The entry illumination function operates when the key enters the vehicle exterior detection area from outside the detection area. If the key does not remains out of the detection area for 3 seconds or more, the illumination function does not operate.
12. MEMORY CALL FUNCTION
(a) When the power switch is off and the driver door courtesy light is off, opening the door will operate the memory call function (the seat will move to a previously recorded driving position). Using the key, memory call, key registration and key cancellation can be performed.
13. WARNING FUNCTION
(a) Warning
(1) When any of the situations below occur, the smart access system with push-button start causes the certification ECU (smart key ECU assembly) to sound a buzzer in the combination meter assembly and the wireless door lock buzzer, a message to appear on the multi-information display, and the power switch illumination to operate in order to alert the driver.
(2) Situation A
* There are 2 patterns for situation A.
* Pattern 1:
When the hybrid control system is left running and a shift state other than park (P) has been selected, the driver opens the door and attempts to get out of the vehicle.
In this situation, the following control is performed:
* Pattern 2:
Under the situation of pattern 1, the driver closes the door and attempts to leave the vehicle while holding the key.
In this situation, the following control is performed:
(3) Situation B
* There are two patterns for situation B.
* Pattern 1:
When the driver door is open, the driver turns the power switch on (ACC) and attempts to leave the vehicle.
* Pattern 2:
When the driver door is open, the driver turns the power switch from on (IG) to off and attempts to leave the vehicle.
In these situations, the following control is performed:
(4) Situation C
* There are 2 patterns for situation C.
* Pattern 1:
When the hybrid control system is left running and park (P) has been selected, the driver closes the driver door and attempts to leave the vehicle while holding the key.
In this situation, the following control is performed:
* Pattern 2:
Under the situation of pattern 1, the driver touches the lock sensor on the door outside handle assembly.
In this situation, the following control is performed:
(5) Situation D
* The lock sensor on the door outside handle assembly is touched to perform entry lock with a door open.
In this situation, the following control is performed:
(6) Situation E
* When the hybrid control system is left running, a passenger leaves the vehicle while holding the key.
In this situation, the following control is performed:
(7) Situation F
* When the key is not in the vehicle or the key battery is dead, the driver attempts to start the hybrid control system or turn the power switch on (IG).
In this situation, the following control is performed:
(8) Situation G
* There are two patterns for situation G.
* Pattern 1:
The lock sensor on a door outside handle assembly is touched to perform entry lock with the key left in the vehicle.
In this situation, the following control is performed:
* Pattern 2:
With a door open and the key in the vehicle, the lock knob is locked and then the door is closed with the door handle being pulled.
In this situation, the following control is performed:
(9) Situation H
* The vehicle is driven using a key that has a low battery.
In this situation, the following control is performed:
(10) Situation I
* A malfunction of the power management control ECU is detected.
In this situation, the following control is performed:
(11) Situation J
* There are two patterns for situation J.
* Pattern 1:
A warning message appears on the multi-information display when the driver does not follow the proper procedure to start the vehicle.
In this situation, the following control is performed:
* Pattern 2:
A message indicating how to start the hybrid control system appears on the multi-information display when the shift lever is in a position in which the hybrid control system cannot be started.
In this situation, the following control is performed:
(12) Situation K
* There are two patterns for situation K.
* Pattern 1:
When the power switch is pushed, the key cannot be detected in the vehicle two times in a row.
In this situation, the following control is performed:
* Pattern 2:
The driver attempts to start the hybrid control system after performing a driver door key linked unlock operation.
In this situation, the following control is performed:
(13) Situation L
* A warning message appears on the multi-information display when the driver attempts to turn the power switch off with a shift state other than park (P) or neutral (N) has been selected.
In this situation, the following control is performed:
(14) Situation M
* A warning message appears on the multi-information display when automatic power off operation occurs.
In this situation, the following control is performed:
(15) Situation N
* A warning message appears on the multi-information display when a key with a depleted battery is touched to the power switch while depressing the brake.
In this situation, the following control is performed:
*: This situation occurs following situation M.
(16) Situation O
* A warning message appears on the multi-information display when the vehicle starts moving without the registered key in the vehicle.
In this situation, the following control is performed:
14. BATTERY SAVING
(a) Vehicle Battery Saving Function
In the smart access system with push-button start, signals are emitted outside the vehicle at a prescribed interval (0.25 seconds) when the doors are locked. Therefore, the vehicle battery could be drained if the vehicle remains parked for a long time. For this reason, the controls listed below are affected:
Reinstatement Conditions
* A wireless door lock control signal (lock, unlock) is input and the ID code matches.
* A user carries the key and touches a lock sensor on a door outside handle assembly.
* The driver door is locked or unlocked by the mechanical key.
(b) Key Battery and Vehicle Battery Saving Function
In the smart access system with push-button start, if the key is constantly in the exterior detection area of the doors, the system maintains periodic communication with the key. Therefore, if the vehicle remains parked in that state for a long time, the key battery and vehicle battery could be drained. For this reason, if this state continues longer than 10 minutes, the smart access system with push-button start automatically becomes deactivated.
Reinstatement Conditions
* A wireless door lock control signal (lock, unlock) is input and the ID code matches.
* A user carries the key and touches a lock sensor on a door outside handle assembly.
* A door is locked or unlocked by the mechanical key.