Chery QQ, Service Manual

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Chery QQ Service Manual Chassis System
Chapter 1 Braking System
Section one: Hydraulic brake
I. Special features of brake system configuration
QQ model is equipped with diagonal-split dual-circuit vacuum boost hydraulic
system. The braking system consists of two braking devices for driving and
parking respectively. The front wheel adopts the disc brake while the rear wheel
adopts the drum brake with automatic lash adjusting device. The whole system
is equipped with the highly efficient vacuum booster and dual-circuit hydraulic
master cylinder.
The QQ cars (for some models) are also equipped with the ABS system. By
applying the ABS system, the control for steering in the process of braking as
well as the efficiency for braking has been greatly improved. The adoption of
the ABS system can avoid the abrupt braking of the wheels, and keep the tires
always in the status of maximum vertical adhesion force, which ensures both the
operability of the front wheels and the prevention of side slips of the rear
wheels so as to ensure that the car brake can be made under the maximum road
surface adhesion factors.
QQ Car Brake System
1-Brake mast cylinder; 2- Liquid storage tank;3 -Vacuum actuator; 4-Brake
pedal;5-B raking line;6-Rear wheel drum type brake;7-Front wheel disc type
brake;
The static status braking control mechanisms are arranged in between the
front seats, which directly act on the brake arms of the two rear wheels by way
of the sheathed wires with small friction resistance. The rear wheel brake also
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Chery Automobile Co., Ltd