Huf Korea 36-414-600 SMK MSCL User Manual
Huf Korea Limited SMK MSCL
User Manual
Document : Technical Manual for SMK MSCL
Model name : SMKREN
Version: 0.1
Date:
October 23, 2006
HUF KOREA CO., LTD.
Operation Guide
This device complies with part 15 of the FCC Rules. Operation
is subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) This device must accept any interference received,
including interference that may cause undesired operation.
Caution !
Any changes or modifications to the equipment not expressly approved by the party responsible for
compliance could void user’s authority to operate the equipment.
ABBREVIATION REGISTER
Abbreviation Description
ACC ACCessory
ECU Electronic Control Unit
GND GrouND
MSCL Mechatronic Steering Column Lock
PCB Printed Circuit Board
1. Structure
1) The MSCL provides an electronically controlled mechanical release of the
steering column lock. The MSCL is integrated in the steering column.
The MSCL physically contains:
① a housing with peripheral mechanism components
- MSCL controller as an assembled printed circuit board (PCB)
2) The knob rotation shall be in accordance with a rotary type ignition switch
having 3 static positions -‘LOCK’/‘ACC’/ ‘ON’ and 1 kinetic position –
‘START’ as shown in below diagram (see figure 2). The outermost position
shall be ‘START’ position that permits automatic return to ‘ON’, therefore,
when releasing the knob at ‘START’ position, the knob shall be returned
automatically to ‘ON’position by the self returning torque of the ignition
switch. Thus, the rotation of knob will result in combinated electrical output
in each 4 positions through the ignition switch. (see circuit diagram of
Ignition Switch Specification ES95470-35.)
3) The axial movement of knob shall be followed as shown in below diagram (see
figure 1) in function with a pressure spring.The knob can be pushed by an
external force against a spring force and can be returned to ‘UNPUSHED’ from
‘1st PUSHED position’ in MSCL Lock position or/and ‘1st PUSHED’ position
from ‘2nd PUSHED’ position as soon as a external force eliminated. The knob
rotation from ‘LOCK’ to ‘ACC’ is possible at ‘1st PUSHED’ and‘2nd
PUSHED’ positions. Also The knob rotation from ‘ACC’ to ‘LOCK’ is
possible at ‘2nd PUSHED’ positions.
The knob movement at ‘LOCK’ position will toggle the knob push switch
signal which shall be transmitted to Smart Key ECU and MSCL controller for MSCL
release and block function.
4) The Auto lever shall normally be moved from ‘P’ position to the other
positions at ‘ON’. However, at ‘ACC’ position, the key interlock function
shall be only depending on the status of ‘P’ position switch at the auto
lever.
5) The turning movement between ‘ACC’ and ‘ON’ position will also toggle the
knob push switch to Smart Key ECU and MSCL controller for the Pre-Key
Interlock function, depending on the status of ‘P’ position switch at the
auto lever and previous key interlock function status.
6) FOB key insertion and extraction to knob is only possible in the
position ‘LOCK’ under normal operation. The FOB key shall not be extracted
out of MSCL knob unit under minimum 100 N except ‘LOCK’ position. And, these
insertion and extraction will toggle the key-in switch signal which shall be
transmitted to Smart Key ECU for Limp home release and block function of MSCL
Knob.
7) Unlocking of the steering device shall be performed as the knob is rotated
from ‘LOCK’ to ‘ACC’ position after pushing and unblocking of knob. And,
the locking of steering device will be proportionally performed as the knob is
rotated from ‘ACC’ to ‘LOCK’with engagement of the lock bolt.
8) Electric power supply toward MSCL controller to activate a bistable solenoid
shall be used to block and release the knob rotation. And, the solenoid block
and release position shall be detected by an optical sensor integrated in MSCL
controller, and the status will be transmitted to Smart Key ECU whenever the
status is requested. And, due to the quick trial, when the knob rotation is
jammed-the knob release or key interlock release, the user shall be able to
turn the knob further only with short removal of the torque on the knob and
without any operation for system re-triggering.
If the electric power supply is failed towards MSCL controller, it is not possible to
release and block the knob rotation. And, the solenoid will keep remained in the current
position ‘Released’ or ‘Blocked’. In case the solenoid keep remained in position
‘Released’ instead of ‘Blocked’ because of electric failure.