Antilock brake system with integral housings for a junction block and electronic control unit

An antilock brake system comprising:

• sensors (1-4) for detecting the rotating conditions of respective wheels of an automobile;
• a hydraulic unit (5) for controlling brake fluid pressures applied to wheel cylinders of said respective wheels via electric control signals;
• an electronic unit (6) incorporating a circuit for forming said electric control signals for controlling switching of solenoid valves of said hydraulic unit based on detected signals of said sensors so that said wheels are not locked;
• and two relays (8 and 9), one electrically connected to said solenoid valves of said hydraulic unit and said circuit of said electronic unit, another electrically connected to a motor of said hydraulic unit and said circuit of said electronic unit, said two relays disposed inside an engine compartment of the automobile;
• said antilock brake system further comprising:
• a first connector (19) connected to a wiring harness (18) including wiring connected to said sensors;
• a second connector (17) connected to a wiring harness (10) including wiring for providing control signals to said hydraulic unit;
• and
• a junction block (7) having a housing (71 and 72) connected integrally to a housing (61) of said electronic unit, said junction block comprising:
• a first group of terminals (78 and 79) to which said respective relays are electrically connected;
• a second group of terminals (77) to which said first connector is electrically connected;
• a third group of terminals (76) to which said second connector is electrically connected;
• and
• an electric wiring section (75) for effecting electric connection between said circuit of said electronic unit and said first, second, and third groups of terminals.