5INTRODUCTION TP czujnik prędkości koła PP czujnik prędkości koła Hydrauliczny i elektronicznymoduł kontrolnyTL czujnik prędkości kołaWzdłużny czujnik ‘G’Boczny czujnik‘G’(Sportowy ABS)PL czujnik prędkości koła
11Sports ABS FunctionNormal ABS function on rear wheels is ‘Select Low’.When one rear wheel brake requires ABS control, the other wheel brake is controlled to the same ‘Low’ level.This system maintains stability on uneven (split ) road surfaces.Total braking force is reduced, underwater increases due to front brakes working more.With Sports ABS, when cornering forces exceed approximately 0.5G, rear brakes are controlled independently.Braking force is better distributed, and understeer is reduced.
12Sports ABS in Action With Normal ABS Start Point With Sports ABS Sports ABS activates during hard cornering under brakes.Normally ABS would jointly control both rear brakes to the same braking force when the inside wheel loses traction, with a resultant increase in stopping distance and cornering understeer.Under these same conditions Sports ABS controls rear braking force individually leading to a reduction in stopping distance and cornering understeer.With Sports ABS
13Electronic Brake-force Distribution Conventional brake system is equipped with a ‘Proportioning Valve’.This valve limits the hydraulic pressure to the rear brakes to reduce the possibility of wheel lock due to weight transfer.‘Split point’ of proportioning valve keeps hydraulic pressure below the ideal maximum level.EBD electronically regulates front/rear hydraulic pressure distribution, ensuring maximum allowable hydraulic pressure to the rear brakes.
14Electronic Brake-force Distribution Conventional braking systems rely on a mechanical proportioning valve to limit the braking force at the rear wheels, to reduce the possibility of rear wheel lock under heavy braking due to weight transfer.A mechanical proportioning valve however restricts rear braking force to a level well below the ideal limit, requiring the front brakes to take more of the braking load. This leads to increased understeer and under utilisation of the rear brakes.EBD due to electronic control more accurately regulates brake force distribution between front & rear wheels to the ideal level, thus improving stopping distances and stability.