franare abs
TRANSCRIPT
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Fr$na cu disc
T=PAER
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Fr$na cu disc
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Fr$na cu disc
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Fr$na cu tambur
T=PAER
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Fr$na cu tambur
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Fr$na cu tambur
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Elementele de
comand@P=(FinGmecGb-Fspr)/Apiston
Gmec=3...4;
Gb=5...9
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Elementele de comand@
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The anti-lock brake system (ABS) consists of thefollowing components:
Hydraulic Control Unit (HCU).
Anti-lock brake control module.
Front anti-lock brake sensors /
rear anti-lock brake sensors.
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- If the anti-lock brake control module senses awheel is about to lock, based on anti-lock brakesensor data, it closes the normally open solenoid
valve for that circuit. This prevents any more fluidfrom entering that circuit.
- The anti-lock brake control module then looks atthe anti-lock brake sensor signal from the affected
wheel again.
- If that wheel is still decelerating, it opens thesolenoid valve for that circuit.
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- Once the affected wheel comes back up to speed,the anti-lock brake control module returns thesolenoid valves to their normal condition allowing
fluid flow to the affected brake.
- The anti-lock brake control module monitors theelectromechanical components of the system.
- Malfunction of the anti-lock brake system willcause the anti-lock brake control module to shut offor inhibit the system. However, normal power-assisted braking remains.
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-Loss of hydraulic fluid in the brake master cylinderwill disable the anti-lock system.
- The 4-wheel anti-lock brake system is self-monitoring. When the ignition switch is turned tothe RUN position, the anti-lock brake control modulewill perform a preliminary self-check on the anti-lock electrical system indicated by a three
second illumination of the yellow ABS wantingindicator.
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- During vehicle operation, including normal andanti-lock braking, the anti-lock brake control modulemonitors all electrical anti-lock functions and some
hydraulic operations.
- Each time the vehicle is driven, as soon as vehiclespeed reaches approximately 20 km/h (12 mph),the anti-lock brake control module turns on the
pump motor for approximately one-half second. Atthis time, a mechanical noise may be heard. This isa normal function of the self-check by the anti-lockbrake control module.
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-When the vehicle speed goes below 20 km/h (12mph), the ABS turns off.
- Most malfunctions of the anti-lock brake systemand traction control system, if equipped, will causethe yellow ABS warning indicator to be illuminated.
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http://www.autosite.com/GARAGE/gifs/garpics/09-47a.gif
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http://www.autosite.com/GARAGE/gifs/garpics/09-49a.gif
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http://www.autosite.com/GARAGE/gifs/garpics/09-51a.gif
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Sistemul electronic de control
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