4-5 Use of driver assistance functions
drive the car at a safe speed.
■ ABS also does not prevent the reduction in stability. In case of a sudden braking, the
steering wheel should be operated moderately. In case of a big turn or sharp turn
during driving process, the car may be turned to the oncoming traffics or rush out of
the road.
■ In case of driving on soft or uneven roads (such as gravel roads or snowy roads), the
cars with ABS may require longer braking distance than cars without ABS. In such
cases, must reduce the speed and maintain a large distance from other cars.
ESP (Electronic Stability Program) (if fitted)
■ ESP will function when the car is started. ESP integrates three functional modules of
ABS, VDC and TCS, and also integrates other value-added sub-functions, such as
HHC and HBA.
■ VDC (Vehicle Dynamic Control)
When the car turns suddenly during driving, VDC system can determine the driving
intention based on the information, such as the steering wheel rotation angle and the
driving speed, and compare continuously them with the actual situation of the car; if the car
is deviated from the normal driving route, VDC can be used to correct the route by braking
the corresponding wheels to help the driver to control the slipping and maintain the driving
stability of the car.
■ TCS (Traction Control System)
TCS is used to prevent the drive wheels from slipping during acceleration by reducing the
motor power, if necessary, it can be used to apply a braking force for control to prevent the
drive wheels from slipping. TCS can be used to ensure that the car is easily started,
accelerated and climbed under adverse driving conditions.
■ HHC (uphill assist device)
After releasing the brake pedal, HHC can be used to maintain the brake pressure applied
by the driver. It can take up to 2s to move your foot from the brake pedal to the accelerator
pedal, to prevent the car parked on the slope from movement backward.
■ HBA (Hydraulic Brake Assist)
When the driver quickly depresses the brake pedal, HBA can be used to recognize the
emergency conditions and quickly increase the brake pressure to a maximum value,
allowing ABS to be applied more quickly, so as to reduce the braking distance effectively.
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