Vehicle control
There are three systems enable the ve鄄
hicle to run to the destination. They are
brake system, steering system and ac鄄
celeration system. At the position where
the tyre contacts the road, the three
systems must implement function.
Sometimes, when driving on the snow
land or ice surface, the requirements for
these control systems exceed the scope
of the force between the tyre and the
road, which means the vehicle may be
out of control.
Brake
The brake operation includes the sense
time and the response time.
First, the sense time decides whether to
step the brake pedal, while the re鄄
sponse time means to raise the foot and
step on the pedal.
The response time is about 3/4 second
on average, but it is an average time.
One driver's response time may be very
short, while the other one's response
time may last 2 -3 seconds. Thus, the
age, the people's state, alertness, har鄄
mony and eyesight will influence the re鄄
sponse time. The alcohol, medicine and
the depressive mood also will produce
influence. Even though the response
time is 3/4 second, and the speed of
the vehicle is 100km/h, the vehicle will
continuously run 20meters. Under the e鄄
mergent circumstance, the distance is
too long, thus, it is important to keep e鄄
nough distance from the other vehicles.
Of course, the practical brake distance
is different when the road (highway or
sandy soil road), the road state (damp,
dry, freezing), the tyre surface, the
brake state, the vehicle weight and the
brake force are different.
In order to avoid stepping the brake
pedal when unnecessary, some drivers
drives the vehicles too fast, e.g. they
step the brake suddenly after stepping
the throttle suddenly instead of keeping
pace with the vehicle stream, it is a
wrong method. The brake can not be
cooled between the continuously emer鄄
gent brake, the brake abrasion will be
accelerated if you frequently stepping
the brake suddenly. Keeping pace with
the vehicle stream and keeping a cer鄄
tain distance from the other vehicles will
reduce unnecessary brake, which can
improve the brake effect and extend the
service life of the brake.
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MO TORS
Notes
Drunk driving is very dangerous, even
though a little alcohol will influence your
response, observation, attention and
judgment. Drunk driving may cause se鄄
vere even fatal traffic accidents, so
please do not drive the vehicle after
drinking alcohol and ride the vehicle
driven by the driver drinking the alco鄄
holic. Go home by riding the taxi; or ap鄄
point a driver who does not drink alco鄄
holic when joining the group activity.
D runk driving is forbidden, the conse鄄
quence of the drunk driving is born by
the driver themselves.
Drunk driving
Drunk driving has become the chief
reason causing the death accidents on
roads, the alcohol influences the driver
from the following four aspects:
淫 Judgment
淫 Harmony of the muscle
淫 Eyesight
淫 Attention
The police record displays, nearly half
of all the death accidents related with
the automotive are concerned with the
alcohol. On most conditions, the reason
causing the death accidents is the
drunk drivers drive the vehicles. It is es鄄
timated that, nearly half of the adults
never drink alcohol, so they never drive
the vehicles after drinking alcohol.
The medical research shows, the alco鄄
hol in people's body will worsen the in鄄
jury in the traffic accidents, especially
cause the injury to the brain, vertebra or
the heart. This means, for the people
who drink alcohol, including the drivers
or the passengers, the probability of
death or lifetime deformity in the acci鄄
dents is much higher than those who do
not drink alcohol.
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