Quote: Originally posted by Yugguy on 11 August 2004
No way would I slam on, I would (and did, the other week) steer through the corner and let the esp brake each wheel as necessary.
the esp only works one wheel at a time and adjusts engine torque. below is two examples of understeer and oversteer both going around a right hand bend.
understeer-if it understeers when turning right it reduces engine torque and applies the rear right hand brake to try to pull the car into the corner.once the understeer has stopped the brake is released and full torque is avaliable again.
oversteer-if it oversteers when turning right it applies the left front brake and increases engine torque. it attempts to pull the vehicle straight by the right front wheel pulling the vehicle around the left front wheel which is braking so creating a pivot idea.
the system:-
it uses the conventional abs block/solenoid valves. there is a multiplex link between the injection computer and abs computer so engine torque can be adjusted. it has a steering angle sensor so it can see how much lock you have applied. it has a yaw sensor which detects acceleration and the yaw angle (the angle of the vehicle around its centre) it has a mapping which will have what yaw angle should be in relation to steering angle and acceleration etc. the readings of all the sensors allows the ecu to detect oversteer or understeer.