Ims (Integrated Memory System): Overview Hyundai Azera I

Scheme 1

DESCRIPTION

Seat, steering column and mirror positions set by the driver are memorized in the IMS control unit by the position sensors. So, those positions can be returned to the memorized positions by the IMS control switch and keyless control even when the seat, steering column and mirror positions are changed. (This is called replay operation). For the sake of safety, replay is prohibited during driving and replay operation can be stopped immediately.

Driver may choose and store the best seat position at the memory power seat unit using the memory switch and the position sensor, in order to restore the seat position at once.

There are CAN communication for data transmission and reception between the memory power seat unit and the driver side door module. The operation is inhibited for safety during driving.

MANUAL OPERATION

1. Motor operation by the seat manual switch (Slide, reclining, front height and rear height control)
2. Seat position setting and 4-way simultaneous operation can be made by the manual switch operation.
3. Seat slide and reclining operation can be made directly in case of communication failure.

Driver may choose and store the best steering column position at the tilt & telescope unit using the memory switch and the position sensor, in order to restore the steering column position at once.

There are CAN communication for data transmission and reception between the memory power seat unit and the driver side door module. The operation is inhibited for safety during driving.

1. Motor operation by the manual switch (Tilt & telescope steering column tilt up & down, telescope forward & backward)
2. Manual switch operation auto stop by limit switch OFF.

MEMORY REPLAY OPERATION

1. Data related to the memory replay are received through the CAN communication from DDM.
2. Memory replay will not be performed unless it is registered.
3. If the position switch is pressed while the memory replay is in operation, the final switch is effective. Though, if the switches are pressed within the time interval of 50 ms, replay will not be performed.
4. When the replay is in operation (position switch is ON), buzzer will sounds once.
5. If any of the following conditions is met, replay is prohibited and operation will stop if it is in replay. When the ignition is OFF. When the "P" position switch is OFF (when the shift lever is at the position other than "P") When the vehicle speed is over 3 Km/h (when it last more than 2 or 3 seconds) When the manual switch in relation to the tilt & telescope is in operation. (Tilt & telescope related replay operation stops) When the stop switch is ON.
6. Determining operational priority In order to prevent overlapping of rushing current when the motor starts up, motor start-up is delayed for 100 ± 10 ms respectively and its operational priority is as follows. Tilt > Telescope