Diagnosis And Testing
ROAD TEST TO EVALUATE THE COMFORT
Carry out on roads open to traffic safely, while respecting the rules of the road.
Before the test check the tire pressure, bringing them back to the correct values if you encounter incorrect values.
Carry out the test on rough roads at a speed of 40 km/h, to test the ability of the suspension to absorb small bumps and absorb stress (damping suspension) with consequent impact noise inside the car.
Check the ability of the suspension to absorb bumps at a speed of 40 km/h on a course that presents a series of bumps.
Check the fast damping of any pitch caused by uneven road profile, performing the test at a speed of 50 km/h on a straight road with the presence of bumps/dips properly separated. This type of test should always be carried out by comparison with respect to a new vehicle or a reference to the same set-up and engine, available in the shop at the time of the test in question.
Use the table below to rate the performance/comfort of the front suspension system.
| SENSE | Score |
|---|---|
| Poor | 3 |
| Average | 4 |
| At the limit of acceptability | 5 |
| Acceptable | 6 |
| Good | 7 |
"The referenced vehicle has a default rating of 7 on ride quality".
ROAD TEST TO EVALUATE THE ROLLING / PITCH
Carry out on roads open to traffic safely, while respecting the rules of the road.
Before the test check the tire pressure, bringing them back to the correct values if you encounter incorrect values.
Carry out the test on a route where there are curves to the right/left of different radius, considering the loading speed of the car on corners, trying to trace the curve at a constant speed, avoiding pulling/releasing maneuvers.
To assess the stability of the car, simulate a lane change/overtake and check that during the maneuver does not cause substantial poor handling/comfort.
Carry out a road test with the presence of various radius curves to the right/left to assess the trends in the loss of traction of the rear of the vehicle (for drift).
This type of test should always be compared to than a new vehicle or reference hand in set up and engine, available in the shop at the time of the test in question.
Use the attached table to rate the suspension performance.
| SENSE | Score |
|---|---|
| Poor | 3 |
| Average | 4 |
| At the limit of acceptability | 5 |
| Acceptable | 6 |
| Good | 7 |
"The vehicle has as reference the default behavior vote to roll/pitch of 7.