|
»Click here to display Table of Contents«
|
Structure |
|
|
|
|
|
Structure |
|
|
|
|
|
»Click here to display Table of Contents«
|
Structure |
|
|
|
|
|
Structure |
|
|
|
|
The structure of the Disk Brake system can be displayed by expanding the folder in the MotionView Project browser:
Brake Disk System in MotionView
Parameter |
Type |
Range |
Comments |
|---|---|---|---|
Pedal Ratio |
Real |
Value > 0 |
Refer to the Pedal Box schematic. |
Front master cylinder piston area (mm2) |
Real |
Value > 0 |
PFront = KBrake boost * FFront/AreaMC_front |
Rear master cylinder area(mm2) |
Real |
Value > 0 |
PRear = KBrake boost * FRear/AreaMC_rear |
Maximum pedal force (N) |
Real |
Value > 0 |
Maximum pedal force exerted by the driver. |
Brake demand scaling factor |
Real |
Value > 0 |
Brake demand corresponding to 100% braking. |
Real |
Value > 0 |
Variable brake boost ratio can be set using the solver variable Brake boost ratio. |
Parameter |
Type |
Range |
Comments |
|---|---|---|---|
Left Disk effective radius (mm) |
Real |
Value > 0 |
Refer to the Brake Disk schematic. |
Right Disk effective radius (mm) |
Real |
Value > 0 |
Default value = Left Disk effective radius |
Left piston area |
Real |
Value > 0 |
Left brake calliper piston area. If: No. of pistons = N. Expected value = N*Area of 1 piston |
Right piston area |
Real |
Value > 0 |
Default value = Left piston area |
Left pad coefficient of friction |
Real |
Value > 0 |
Coefficient of friction between left brake Disk and left brake calliper pads. |
Right pad coefficient of friction |
Real |
Value > 0 |
Default value = Right pad coefficient of friction |
Stiction omega (rad/s) |
Real |
Value > 0 |
Angular velocity of the brake Disk above which maximum braking force is applied. Refer to the Friction Force versus Wheel Angular Speed schematic. |
| • | Similar to Front Disk Brakes Info (listed above) |
Solver Variable |
Comments |
|---|---|
Computes pressure in front brake line. PFront = KBrake boost * FFront/AreaMC_front |
|
Rear brake line pressure |
Computes pressure in front brake line. PRear = KBrake boost * FRear/AreaMC_rear |
Brake bias (forwards) |
User defined solver variable. FFront = BB * FMC |
User defined solver variable.
Default brake boost ratio is a user defined constant in the Brake system info dataset. |
|
Driver brake demand |
User defined solver variable. If used in an analysis (a driving analysis for example), analysis is expected to override this solver variable. |
| • | Action reaction torque between knuckle and wheel hub at the wheel center. |
| • | Direction is opposite to the angular velocity of the wheel hub. |
| • | Torque magnitude is calculated according to the following equation: Friction torque on the brake Disk =  |
| • | Similar to the Front Brake Torque Info (above) |
