Over steer / Under steer - Research calculation/code for slip angle for a given radius and steering angle? - - Calculations for vehicle balance/yaw moment. - https://www.youtube.com/watch?v=6fyxlvDrx3M - Highlight a few instantaneous points during endurance and skidpad. - Do we have more understeer and oversteer? - What effects understeer and oversteer? https://needlesslyobscure.wordpress.com/2009/08/31/vehicle-dynamics-understeer-andoversteer/ https://motorsportengineer.net/the-dynamics-of-understeer-and-oversteer-in-formula-1/ Notes - When front or rear loses traction leads to oversteer, understeer Understeer – front tires lose traction before the rear tires – keep going straight doesn’t corner properly Oversteer – rears lose traction before front. Front has more traction so corners more sharply and back step out more, less drive. Hard to maintain control Affected by : weight distribution (look at) 45:55 , more weight at the back more traction means we might have a bit of under steer , tires Understeer is the worse – driver must reduce their pace to compensate for the lack of grip and prevent them from going wide and not making the corner Oversteer – harder to control – but better in situation as it can rotate the car faster and achieve faster corner exits. Too much oversteer leads to spinning – balance When front suspension is stiffer , rear suspension is softer = understeer When front suspension is softer , rear suspension is stiffer = over steer Need to look at motion ratio, tire rate , ride rate , damping of springs Depends also if the driver prefers understeer/oversteer Car experiences understeer when – front tires have a greater wear – degradation -les grip understeer - Oversteer not as bad to rear tire wear For fuel consumption and efficiency = understeer is worse – need to reduce speed , brake , and make continued corrections to maintain control
