GENERAL INFORMATION
M12704100048USA0000010000
⦆
Electronic control AWD has been adopted to ensure
the on-road performance, achieve lighter and
smaller body, and realize better fuel economy.
⦆
The electronic control AWD controls the torque of
the electronic control coupling located between the
propeller shaft and rear differential. This strategy is
enabled by varying the torque distribution to the
front and rear wheels from the status closer to the
front wheel drive to the status closer to the direct
coupling AWD and realizes the optimal drive force
according to the various driving conditions.
AIMS OF DEVELOPMENT
Lightweight and simple construction of the electronic
control AWD achieves good fuel efficiency and
provides enjoyment of selecting the drive mode.
FUNCTION
⦆
The adoption of the electronic control coupling
satisfies both of the tight corner braking
phenomenon*and traction performance.
NOTE:
*Tight corner braking indicates the
following condition. When the AWD vehicle turns
sharply on a pavement at low speed (ex. parallel
parking), the rotational radius of the front and
rear wheels differs, and this difference can no
longer be compensated by the tire slippage. At
this time, the driver feels as if the brake was
applied.
⦆
The electronic control AWD receives the signals of
the throttle position and vehicle speed via
CAN*communication protocol, detects the vehicle
driving condition and operation of the driver, and
distributes the proper torque to the rear wheels.
NOTE:
*: For more information about CAN
(Controller Area Network), refer to GROUP 54C .
⦆
Under severe driving condition, the system is
protected by minimizing the limitation force of the
differential.
⦆
During high-speed driving, the fuel efficiency is
improved by reducing the limitation force of the
differential.
⦆
The following drive modes are available according
to the drivers' preference to provide the enjoyment
of selecting functions.
Drive
mode
Control content
Appeal points
FWD
Minimizes
the
limitation force of
the differential.
High fuel efficiency
mode which enables
smoother
turning
performance of the
FF vehicle
AWD
Increases
the
limitation force of
the
differential
according to the
different rotation
speed of the front
and rear wheels
and the throttle
position.
Universal
mode
which automatically
distributes the drive
force to the rear
wheels as necessary
LOCK
Further increases
the limitation force
of the differential
compared to the
AWD mode.
Mode which has an
excellent
driving
performance
when
driving on rough road
or in stuck situation
and
enables
the
powerful driving
ELECTRONIC CONTROL AWD
27C-3
GENERAL INFORMATION