NC Training Guide - Miata.net

04 BRAKESDynamic Stability ControlDSC HU/CM Construction• A high reliability, reduced size and weight DSC HU/CM, integrates both the DSC HU and the DSC CM.DSC HU Part Function• According to DSC CM signals, the DSC HU controls (on/off) each solenoid valveand the pump motor, adjusts fl uid pressure in each caliper piston, and actuateseach function (ABS, EBD, TCS and DSC) of the DSC system.DSC HU Part Construction/OperationConstructionFunction of main component partsPart nameFunction• Adjusts the fl uid pressure in each brake systemInlet solenoid valveaccording to DSC HU/CM signals.• Adjusts the fl uid pressure in each brake systemOutlet solenoid valveaccording to DSC HU/CM signals.• Switches the brake hydraulic circuits during andStability control solenoid valve according to normal braking, ABS and EBDcontrol, TCS control and DSC control.• Switches the brake hydraulic circuits during andTraction control solenoid valve according to normal braking, ABS and EBDcontrol, TCS control and DSC control.• Temporarily stores brake fl uid from the caliperpistons to ensure smooth pressure reductionReservoirduring ABS and EBD control, TCS control andDSC control.• Returns the brake fl uid stored in the reservoirto the master cylinder during ABS and DSCcontrol.Pump• Increases brake fl uid pressure and sends brakefl uid to each caliper piston during TCS controland DSC control.Mazda Technical TrainingMX-5 Miata New Model TrainingSG-137