FEATURES
1-19
2. Pressurized state
Port D “11” is closed by the “pressurization” signal transmitted from the ABS ECU. Before this oc-
curs, the spool of the flow control valve has compressed the return spring and closed port B “9”.
Brake fluid that has entered through port A “7” is further restricted by the orifice “10” and the brake
fluid is sent to the brake caliper via port A “7” and port C “13”. At this time, the brake is pressurized
at a constant rate regardless of the brake fluid pressure level since the restriction of port A “7” chang-
es so that a constant pressure difference is maintained between chamber A “20” and chamber B
“21” of the flow control valve.
1. Brake master cylinder
2. Brake light switch
3. ABS motor
4. Hydraulic pump
5. Buffer chamber
6. Flow control valve
7. Port A
8. Spool
9. Port B
10.Orifice
11.Port D
12.Solenoid valve
13.Port C
14. Brake caliper
15.ABS ECU
16.ABS warning light
17.Brake fluid pressure
18. Time
19. Repressurizing
20. Chamber A
21. Chamber B
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