Mitsubishi Grandis. Manual - part 897
GENERAL INFORMATION
ANTI-SKID BRAKING SYSTEM (ABS)
35B-3
GENERAL INFORMATION
M1352000100603
FEATURES
The 4ABS ensures directional stability and
controllability during hard braking.
For vehicles with this type of ABS, 4 sensors (4
channels) are installed on front and rear wheels
allowing independent left and right control.
The system has the following features:
NOTE: On vehicles with ASC, the ABS system is
controlled by the TCL/ASC-ECU. For the system
construction, refer to GROUP 35C, General
Information
• EBD (Electronic Brake-force Distribution system)
control has been added to provide the ideal
braking force for the rear wheels.
• Magnetic encoder for detecting wheel speed has
been installed as a wheel speed sensor instead
of the rotor.
• For wiring harness saving and secure data
communication, CAN
*
bus has been adopted as
a tool of communication with another ECU.
NOTE:
*
: For more information about CAN
(Controller Area Network), refer to GROUP 54D
EBD CONTROL
In ABS, electronic control is used so the rear wheel
brake hydraulic pressure during braking is regulated
by rear wheel control solenoid valves in accordance
with the vehicle's rate of deceleration, and the front
and rear wheel slippage which are calculated from
the signals received from the various ABS sensors.
EBD control is a control system which provides a
high level of control for both vehicle braking force
and vehicle stability. The system has the following
features:
• Because the system provides the optimum rear
wheel braking force regardless of vehicle load
conditions and the condition of the road surface,
the system reduces the required pedal
depression force, particularly when the vehicle is
heavily loaded or driven on road surfaces with
high frictional coefficients.
• Because the duty placed on the front brakes is
reduced, the increases in pad temperature can
be controlled during brakes application to
improve the wear resistance characteristics of the
pad.
• Control valves such as the proportioning valve
are no required.
SPECIFICATIONS
Item
Specification
ABS control method
4-sensor, 4-channel
No.of rotor teeth
Front
96 (N pole:48 S pole:48)
Rear
86 (N pole:43 S pole:43)
Wheel speed sensor
Type
Semiconductor