OUTLINE
When the door closer system detects that the front and rear doors are ajar, it automatically actuates the motors to fully close the front and rear doors.
Position detection switches are enclosed in the door closer mechanism in each of the front and rear doors lock assemblies to detect whether the front and rear doors are open, closed, or ajar. If a detection signal that indicates that a front and rear doors are ajar is transmitted to the multiplex network door ECU, the multiplex network door ECU actuates the operation of the door closer motor in order to fully close the front and rear doors.
In this system, each door is independently controlled by the multiplex network door ECU that is provided in the respective door. The multiplex network door ECUs maintain communication via the CAN (MS Bus).
A mechanical cancel mechanism is provided to enable the opening of the front and rear doors by operating either the outside or inside door handle while the door closer system is operating. Through the function of the link and the lever that move together with the movement of the handle when either the outside or inside door handle is operated, the mechanical cancel mechanism cuts off the transmission of the power from the motor in order to disable the operation of the door closer system, thus enabling the door to be opened.
A 2-step close function is used. When the door closer system is operated, the 2-step close function stops for approximately 0.7 seconds shortly before the door is closed completely to alert the user.
If the operation of the door closer system is not completed within approximately 3 seconds due to the jamming of a foreign object, the multiplex network door ECU detects a malfunction and stops the current that is supplied to the motor.