24-04-2014, 04:42 PM
6-speed automatic transmission 09D
INTRODUCTION
was developed at the famous Japanese manufacturer of automatic transmissions, AISIN Co., LTD,
where it is manufactured.
In the development of the control unit software, the years of experience that Volkswagen
engineers have had with fuzzy logic-controlled driving programmes that depend on driving
situations and hindrances has been a determining factor.
This 6-speed automatic transmission, which has a very compact construction, is being
used for the first time in the Volkswagen Touareg.
How it works
Once the ignition has been turned on, the
magnet for the selector lever lock is put under
current by the control unit for automatic
transmission, thus blocking the selector lever.
If the control unit receives the signal ”brake
applied” via the CAN data bus, it cuts off current
to the magnet and the selector lever can be
moved.
The magnet for selector lever lock ”P ” N380
is at the selector lever frame, as is the magnet for
the selector lever lock.
It prevents the selector lever from moving out of
the ”P” position when the ignition is switched off.
The ignition must be switched on to activate the
lock button.
Electric circuitry
If the ignition is switched off and the selector
lever is in the ”P” position, a signal travels from
the switch F319 to the access and start
authorisation control unit J518.
The control unit then sends current to the magnet
for the ignition key removal lock N376.
The locking pins are removed.
The ignition key can be withdrawn.
If the selector lever is not in the ”P” position when
the engine of a vehicle with start/stop buttons is
switched off, the dash panel insert emits an
optical and acoustical warning.
The driver is thus informed that the selector lever
is not in the ”P” position.