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.
Feature
| 1. |
Manual operation of the seats by the manual
switch. (Manual operation) |
| 2. |
Memory and regeneration operation of the
seats by memory switch. (Memory and replay operation) : for 2
persons. |
| 3. |
Auto memory upon the keyless LOCK and
regeneration upon the UNLOCK. (Keyless memory and regeneration
operation): for 2 persons. |
| 4. |
Function description
| (1) |
Driver power seat, sliding control,
forward and backward |
| (2) |
Driver power seat, reclining control,
forward and backward |
| (3) |
Driver power seat, height control, up
and down | |
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. |
Memory
Registration
| 1. |
Data related to the registration are
received through the CAN communication from the power window main on
the CAN line. |
| 2. |
If any of the following conditions is met,
memory permit status is released.
When the ignition is OFF.
When the manual switch is
ON. |
| 3. |
If 2 position switches are pressed ON
simultaneously (within time interval of 50 ms) in memory
registration, none of the switches are valid, and the first pressed
switch is valid if the time interval is greater than 50
ms. |
| 4. |
If the vehicle speed is over the limit speed
of 3km/h or shift lever is at the position other than P,
registration cannot be performed. |
| 5. |
Registration can be revised without any
limitation. |
| 6. |
Memory will be cleared if the battery is
removed. |
| 7. |
If the memory registration is permitted
(memory switch is ON), it sounds the
buzzer. |
Memory
Replay Operation
| 1. |
Data related to the memory replay are
received through the CAN communication from the power window main on
the CAN line. |
| 2. |
Seat is set to the registered position as
each position switch is pressed when the ignition is
ON. |
| 3. |
Memory replay will not be performed unless
it is registered. |
| 4. |
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. |
| 5. |
When the replay is in operation (position
switch is ON), buzzer will sounds
once. |
| 6. |
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
seat is in operation. (Seat related replay operation
stops)
When the stop switch is ON.
|
| 7. |
Control in reverse operation
When the motor is driven reverse during the
operation, it performs reverse operation after 60 ± 10 ms and 100 ±
10 ms from completing the current operation in slide, reclining and
front/rear height respectively. |
| 8. |
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.
Slide>Reclining>Front height>Rear
height |
| 9. |
Sequential timer settings for motor
start-up.
Slide : 20 ± 2 seconds (in memory
replay)
Reclining : 35 ± 3 seconds (in memory
replay)
Front height : 7 ± 1 seconds
Rear height : 15 ± 1 seconds
※ Slide, Reclining: It operates depending on
the switch input time in manual switch input (direct drive
type) |
Registration
And Replay By The Keyless
| 1. |
Keyless registration operation
| (1) |
Ignition ON and OFF positions are
registered corresponding to the keyless
codes. |
| (2) |
Keyless codes are determined by the
keyless door lock
operation. | |
| 2. |
Keyless replay operation
| (1) |
Upon door unlock operation when the
ignition is OFF, it automatically set the registered positions
corresponding to the keyless code. However, seat slide is
automatically set to the following
positions. |
| (2) |
If any of the following conditions is
met, keyless replay operation is prohibited and operation
stops if it is in operation.
| A. |
When the P position switch is
OFF. |
| B. |
When the switch is in manual
operation. |
| C. |
When the stop switch is
ON. | | |
Buzzer
Output
| 1. |
In case of memory permit status (memory
switch is ON) : once |
| 2. |
When memory registration is complete
(position switch is ON) : twice |
| 3. |
When the memory replay is in operation
(position switch is ON) : once |
| 4. |
When error is detected due to the sensor
failure : 10 times |
Error
Detection
| 1. |
If the sensor fluctuations of slide and
front/rear height for one second after motor start-up are less than
6 pulses and 4 pulses respectively, and if the sensor fluctuation of
reclining for 3.5 seconds is less than 50mV, it is determined that
the harness is short or sensor is
fail. |
| 2. |
Countermeasure when error is
detected.
Stop the operation if it is in auto replay.
Though, it should be operable manually. When the failure is
completely repaired, it can be automatically adjusted from the stop
of auto replay. If the position sensor senses the pulse from the
position sensor by the manual operation, we judge it is complete.
This is called stop release of automatic
operation. |
