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CONSTRUCTION DIAGRAM ACTIVE STABILITY CONTROL SYSTEM (ASC) 35C-13 HSA function state transition diagram (Overview) NOTE: . • ASC-ECU judges the inclination angle of the slope according to the G and yaw rate sensor output. • When either of the following conditions is satisfied, the mode is shifted to the forcible termination mode, • The parking brake operation is detected. • The shift lever operation to the shift or selector position other than the uphill direction driving is detected (Forward uphill driving: shift or selector position other than "D" * , Reverse uphill driving: shift or selector position other than "R"). • The accelerator pedal and brake pedal are depressed at the same time. • The wheel speed sensor pulse is generated (When the vehicle moved) • The engine is stopped by engine stall, etc. *:When uphill driving, if shift position is "N" position, HSA function is operated HSA function control activated ASC-ECU judges that the HSA operation condition is FLUID PRESSURE HOLD MODE By closing the cut valve, ASC-ECU maintains the AC809431 Fluid pressure When the conditions above are met Forcible termination - Steep uphill
- The accelerator pedal is not depressed
Release of depressed brake pedal The fluid pressure hold mode is kept for Start mode The accelerator pedal HSA function HSA function control The start mode is continued for Depressurization is AC Depressurization is - The vehicle has been stopped by depressing the brake during uphill driving |