| FUNCTION OF SAFETY POWER
WINDOW |
When driver door power
window auto-up switch is operated, safety function is
activated.
| 1. |
Safety function condition
When detect the force of 100N (using the
10N/mm spring) during the window rising, window is
reversed. |
| 2. |
Length of window reversing (except holding
the auto-up switch)
| A. |
When detect the jamming during the 4mm
~ 250mm from top of the door.
→ Window is reversed until 300mm from
top of the door.
|
| B. |
When detect the jamming over the 250mm
from top of the door.
→ Window is reversed until 50mm from
jamming position.
| |
| 3. |
Length of window reversing (holding the
auto-up switch)
| A. |
When detect the jamming during holding
the auto-up switch.
→ Window is reverse until 25mm from
jamming position. |
| B. |
Auto-up function is not available
during the 5 seconds from above condition.
→ When holding the auto-up switch,
window is operated as a manual-up function. (Safety function
is not activated.) |
| C. |
When holding the auto-up switch after
5 seconds from above condition.
→ Window is reverse until 25mm from
jamming position.
| |
| 4. |
Safety function is not available
area
Safety function is not available during the
4mm from top of the door. |
INITIALIZING
METHOD OF THE SAFETY POWER WINDOW
| 1. |
Initializing of Battery
Connection
When the battery is not connected after
disconnecting the battery, safety power window switch need the
initializing.
| (1) |
Power window operation before
initializing
| A. |
Manual-Up/Safety function is
available |
| B. |
Auto-Up function is not
available
(When holding the auto-up/down
switch, window is operated as a
manual-up/down.) | |
| (2) |
Initializing method
Close the window in window open
position, and holding the switch in window full close position
over the 0.2 second.
(If start the closing the window in
window full close position, initializing could be
failed.) |
| (3) |
If initialize the safety power window
in jamming status, could occur below conditions.
| A. |
Safety function is not
available | |
| (4) |
Position control
To detect the window position and
direction of motor rotation, hall sensors are employed. ECU
recognizes the fully closed position of the window and sets
this relative window position value as "0". When the window
goes downwards, based on the information from the hall sensor,
the relative position value increments. On the contrary, when
the window goes upwards, it decrements.
|
Motor position is only valid if
the system stays in normalized state. (see
initialization force
limitation). | |
| (5) |
Recall and storing the normalization
information
ECU records the normalization
information into the specified location in Flash ROM. (as long
as Flash ROM page is valid)
| A. |
Storing conditions: 1 second
after the motor stops |
| B. |
Recall conditions:
Engine = on OR
Power On
Reset | |
| (6) |
Switch signal filtering
Debouncing time: 14ms
T1, t2 and t3: Measured with signal
that debouncing is done. In case T1 > 6ms, motor shall
operate. In case T2 > 22ms, motor might operate in manual
mode.
When Auto up switch input is active,
auto up mode is active till 300ms. After this and until switch
is released, panic mode is enable. In the end when the switch
is released, auto up mode is enabled again.
The conditions for terminating the
motor control by the (Semi) Auto Up/Down or Manual
Up/Down:
| A. |
Out of the operation voltage
range OR |
| B. |
Thermal protection ON
OR |
| C. |
Anti-pinch function
OR |
| F. |
Other key input
occurs | | |
| 2. |
Thermal protection
Software provides an algorithm in order to
prevent the motor from thermal overheating under the specified
conditions like the valid Flash ROM Data.
After power on reset, the software thermal
counter starts to count from the initial value. In case of motor
running, software increases the thermal counter by using the motor
heating characteristic, otherwise the thermal counter decreases by
using the motor cooling characteristic.
There exist 2 thermal protection limits. If
the software thermal counter is over the first limit, the motor
movement stops until the software thermal counter decrease to the
release limit temperature value, but still allows the current
movement to finish. If the software thermal counter is over the
second limit (while motor running), the movement stops at once until
the release temperature value is reached (reversing will not be
interrupted by software thermal protection).
The motor is able to continue to operate at
least "15" cycles without a break under the above conditions and
after thermal protection is activated, the motor turns to the
operational condition within "35±5" seconds.
Test starts with SW-thermal counter at the
initial value.
Cycle: Full closed → 1sec. rest → Full
opened → 1sec.
rest |
