Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ 07458 All.

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Presentation transcript:

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 1 FIGURE 19–1 Bendix 9 ABS contains nine solenoids and was used on older model Jeeps.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 2 FIGURE 19–2 Bendix 10 systems use four isolation valves, three decay valves, and three build valves.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 3 FIGURE 19–3 Bendix 10 hydraulic control unit.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 4 FIGURE 19–4 Bendix 6 ABS is a nonintegral system.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 5 FIGURE 19–5 Bendix 6 schematic showing the normal braking mode (pressure increase stage).

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 6 FIGURE 19–6 Bendix 6 modulator with dual accumulators.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 7 FIGURE 19–7 Bendix LC4 system schematic.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 8 FIGURE 19–8 Bendix LC4 modulator and pump assembly.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 9 FIGURE 19–9 Bendix ABX-4 hydraulic control unit.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 10 FIGURE 19–10 The wiring schematic for the Bendix ABX-4 hydraulic control unit.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 11 FIGURE 19–11 Bendix ABX-4 wiring harness and component locations.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 12 FIGURE 19–12 Bendix Mecatronic modulator controls ABS and drive wheel traction during acceleration.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 13 FIGURE 19–13 Bendix Mecatronic system with traction control showing component locations.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 14 FIGURE 19–14 Bendix Mecatronic throttle actuator pushes back the throttle linkage to help reduce wheel spin by reducing engine torque.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 15 FIGURE 19–15 Bosch 2 ABS system showing the location of the components.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 16 FIGURE 19–16 Bosch 2 system hydraulic modulator.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 17 FIGURE 19–17 Bosch 2U ABS system components.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 18 FIGURE 19–18 Bosch ABS/ASR system in normal braking mode.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 19 FIGURE 19–19 Bosch ABS/ASR system in the pressure hold mode.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 20 FIGURE 19–20 Bosch ABS/ASR system in the pressure decrease mode.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 21 FIGURE 19–21 Bosch 5 ABS modulator.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 22 FIGURE 19–22 Delphi ABS-VI components.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 23 FIGURE 19–23 Delphi ABS-VI modulator, motor pack, and master cylinder.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 24 FIGURE 19–24 Delphi ABS-VI hydraulic modulator.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 25 FIGURE 19–25 Delphi ABS-VI motor pack assembly.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 26 FIGURE 19–26 Delphi ABS-VI expansion spring back (ESB) construction and operation.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 27 FIGURE 19–27 Delphi ABS-VI system is pressure decrease mode for one front brake circuit.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 28 FIGURE 19–28 Delphi ABS-VI system in the pressure increase mode for one front brake circuit.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 29 FIGURE 19–29 Delphi ABS-VI system in pressure decrease for a rear brake.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 30 FIGURE 19–30 Delphi DBC-7 ABS system.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 31 FIGURE 19–31 Kelsey-Hayes RWAL ABS system.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 32 FIGURE 19–32 Kelsey-Hayes RWAL system modulator in the normal brake mode (pressure increase mode).

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 33 FIGURE 19–33 Kelsey-Hayes system modulator in the pressure hold mode.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 34 FIGURE 19–34 Kelsey-Hayes system modulator in the pressure decrease mode (pressure dump mode).

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 35 FIGURE 19–35 Kelsey-Hayes 4WAL ABS system.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 36 FIGURE 19–36 Kelsey-Hayes 4WAL electrohydraulic control unit (EHCU).

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 37 FIGURE 19–37 Kelsey-Hayes 4WAL system hydraulic schematic in the normal (pressure increase) mode.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 38 FIGURE 19–38 Kelsey-Hayes EBC5H four-wheel ABS system.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 39 FIGURE 19–39 Component location for the Kelsey-Hayes EBC5H four-wheel ABS system.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 40 FIGURE 19–40 Hydraulic schematic of the Kelsey-Hayes EBC410 four-channel ABS system.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 41 FIGURE 19–41 Sumitomo ABS system.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 42 FIGURE 19–42 Sumitomo modulator.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 43 FIGURE 19–43 Teves Mark IV nonintegral ABS hydraulic circuit.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 44 FIGURE 19–44 Teves Mark IV hydraulic control unit.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 45 FIGURE 19–45 Teves Mark 20 ABS system on a typical rear-wheel-drive application.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 46 FIGURE 19–46 Teves Mark 20 ABS system on a typical front-wheel-drive application.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 47 FIGURE 19–47 Teves Mark 20 ABS systems with traction control use a master cylinder that has center valves to allow the brake fluid to flow from the master cylinder reservoir.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 48 FIGURE 19–48 The integrated control unit (ICU) is used on most Mark 20 ABS applications.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 49 FIGURE 19–49 The deceleration sensor in Teves Mark 20 ABS systems used on Jeep applications uses three mercury switches that open in response to forward and reverse deceleration forces.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 50 FIGURE 19–50 Component location of the Toyota rear-wheel ABS system.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 51 FIGURE 19–51 Toyota rear-wheel ABS hydraulic circuit.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 52 FIGURE 19–52 Toyota four-wheel ABS system uses a hold solenoid and decay (pressure reduction) solenoid in each hydraulic circuit.

Automotive Brake Systems, 5/e By James D. Halderman Copyright © 2010, 2008, 2004, 2000, 1995 Pearson Education, Inc., Upper Saddle River, NJ All rights reserved. 53 FIGURE 19–53 The normally open hold solenoid closes at the start of an ABS stop. The check valve allows fluid to flow to the master cylinder when the brake pedal is released.

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