Mitsubishi Lancer Evolution 7. Manual — part 23
DRIVE CONTROL COMPONENTS -
Power Steering
DRIVE CONTROL COMPONENTS -
Power Steering
3-11
SHOCK ABSORBING MECHANISM
1. Primary impact
When the vehicle collides with something and there is a load
added to the shaft sub assembly from the gearbox, the shaft
sub assembly slides above the pipe sub assembly to absorb
the shock load. This prevents the steering column from
moving backwards during the impact.
2. Secondary impact
(1) When the driver falls against the developed air bag, the
tilt bracket(A) moves forwards by shearing the polyacetal
resin, causing the steering column assembly to move
forward.
BEFORE COLLISION
AFTER COLLISION
Shaft sub assembly
Pipe sub assembly
Tilt bracket(A)
Polyacetal resin
Steering
column
mounting
bolt
Steering
column
assembly
Section A – A
Section B – B
A
A
B
B
Impact
load
BEFORE COLLISION
AFTER COLLISION
DRIVE CONTROL COMPONENTS -
Power Steering
3-12
(2) At the same time that tilt bracket (A) separates, the clevis
pin comes out of the U-section groove in the tilt plate,
allowing the steering column assembly to move forward.
OIL PUMP
The oil pump is a vane type with a fluid flow control
system which functions so that the steering wheel
turning effort will be reduced at low engine speeds
and it will be appropriately increased at higher
speeds.
The following modifications have been made to
Lancer EVOLUTION-VI Tommi Makinen Edition.
D
By increasing the basic discharge amount from
7.2 cm
3
/rev. to 9.6 cm
3
/rev., the assist shortage
at idle has been improved.
D
By increasing the diameter of the pully shaft
bearing and the pump body rigidity , the pump
noise has been relieved reducing vibration
occurance.
POWER STEERING FLUID COOLER TUBE
The cooling efficiency of power steering fluid has been
improved by adopting a cooler tube to the fluid line.
Clevis pin
U-section
groove
Steering column
assembly
Tilt plate
Tilt bracket (B)
BEFORE COLLISION
AFTER COLLISION
Cooler tube
DRIVE CONTROL COMPONENTS -
Power Steering
3-13
STEERING GEAR
D
Using the following parts have contributed to
save weight; an aluminium steering gear and
linkage valve housing, a plastic tie-rod bellows,
and the hollow-type tie-rod stud.
D
The installation accuracy, rigidity and steering
stability have been improved by using an eye
bushing, which secures the steering gear to
the crossmember.
Valve housing
Gear housing
Crossmember
Tierod bellows
Inner pipe
Bushing
Crossmember
Gear housing
Hollow
Steering gear and linkage
DRIVE-CONTROL COMPONENTS -
Brakes
3-14
BRAKES
The brake system has been designed to give
greater reliability and durability and to provide
excellent braking performance.
FEATURES
1. A 4-wheel anti-skid braking system (4ABS) has been
adopted to prevent slipping caused by the vehicle wheels
locking up in order to maintain an appropriate braking
distance, and also to maintain a stable vehicle posture
and steering performance. <Vehicles with ABS>
2. Adoption of an electronic brake-force distribution(EBD)
which makes it possible to maintain the maximum amount
of braking force even when the vehicle’s load is unevenly
distributed. <Vehicles with ABS>
3. A rear wheel early lock-prevention proportioning valve has
been adopted. <Vehicles without ABS>
4. Front- and rear-wheel X-type brake line layout has been
adopted.
5. Ventilated discs have been adopted in order to improve
anti-fading performance.
1. A 8+9-inch brake booster has been adopted to provide
large braking force with a small pedal depression force.
2. 15-inch ventilate disc brakes have been adopted to provide
stable braking force and improved braking feel. <Vehicles
without brembo braking system>
3. 17-inch front ventilate disc brakes have been adopted to
provide stable braking force and improved braking feel.
<Vehicles with brembo braking system>
4. 16-inch rear ventilate disc brakes have been adopted to
provide stable braking force and improved braking feel.
<Vehicles with brembo braking system>
Improved braking perfor-
mance
1. A diagnosis function has been adopted for the ABS system
in order to make inspection easier. <Vehicles with ABS>
2. An outer disc method separated hub and rotor has been
adopted to make removal and installation easier.
3. The master cylinder reservoir tank cap has been coloured
white to make identification easier.
4. The ABS-ECU and hydraulic unit have been integrated
to make them more compact and lightweight.
Improved serviceability
Improved stability
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст