Chery B11. Manual — part 223

Chery·Maintenance Manual for Oriental Son

Automatic Transmission

60

utomobile speed sensor:

he automobile speed sensor is located in

e gear chamber of the speed meter and can
put signals for A/T-ECU.

l

nal 3). The speed sensor will give out

the base terminal of the

eed sensors.

le pressure switch:

he double pressure switch is located inside

e responder/drive and can detect if the

utomobile air conditioner is on or off.

hen A/C is on and double pressure switch

closed, A/T-ECU (Terminal 10) can

ceive system voltage and then determine

extra

车速传感器

A
T
th
in





Function:
A/T-ECU (Terminal 69) supplies a 5V
voltage to the speed sensor output termina
(Termi
a pulse signal when
transistor is electrified.
A/T-ECU can compare the signals of
automobile speed sensor with those of the
input and output shaft rotation sp
If the automobile speed sensor does not
work, the gear shifting will not be carried
out properly.



Doub

双重压力开关

T
th
a






W
is
re
that A/C compressor has received the startup
signal.
When A/C compressor starts, A/T-ECU
shifts the gear to compensate for the
load on the engine.

Chery·Maintenance Manual for Oriental Son

Automatic Transmission

Idle speed position switch:

to

(Terminal 3).

rminal

-

the voltage

gh the switch and A/T-

he help of the

ontact switch on the brake pedal.

he battery supplies voltage to the parking

inal 2), and supply the

edal is depressed.

hen A/T-ECU (Terminal 59) is supplied

ith battery voltage, it will determine if the

rake pedal is depressed and the parking

ght is on.

Function: the idle speed position switch can
detect the position of fully-closed throttle
with the help of the contact switch in the
TPS.
Circuit operation:
ECU supplies a 5V voltage (Terminal 87)
the idle speed switch
The idle speed switch is grounded (Te
4) through ECU (Terminal 92).
When the throttle is higher than the idle
speed, the switch will be turned on and A/T
ECU will detect the 5V voltage (Terminal
36). When the throttle is closed,
is grounded throu
ECU will detect the 0V voltage (Terminal
36).



Parking light switch
Function:
The parking light switch can detect if
brake is on or off with t

the

c




T
light switch (Term
battery voltage to A/T-ECU (Terminal 59)
when the brake p
W
w
b
li

停车灯开关

制动踏板

61

Chery·Maintenance Manual for Oriental Son

Automatic Transmission

Gear-selecting switch and gear-shifting

ifting

e

instruction or an automatic

the

ar-shifting switch can

e the gear lever shifts to the side of

) or (-), the automobile is geared up or

own accordingly.

automatic mode, the gear-shifting

dicator light in the meter panel will

hin “D” position. However, in

ated

bly

set to the high-speed gear position or low-

peed gear position, the battery’s anode

oltage will be supplied to A/T-ECU

erminal 56 and 68).

trol relay

switch
The gear-selecting switch and gear-shifting
switch are installed in the gear-sh
switch assembly.
When the driver is selecting the gears, th
gear-selecting switch can detect if it is a
driving mode
mode instruction.
When the driver is selecting the gears in
driving mode, the ge
detect if it is an instruction to shift to a
higher speed gear or a lower speed gear.
Each tim
(+
d
In
in
indicate the position of the gear lever and
the gear wit
driving mode, only the gear will be indic
but not the gear lever position.
System circuit:
If the gear-selecting switch in the gear-
shifting assembly is set to the driving mode,
the battery’s anode voltage will be supplied
to A/T-ECU (Terminal 57). If the gear-
shifting switch in the gear-shifting assem
is
s
v
(T






A/T con
A/T control relay will supply power to the
solenoid valve.

62

Chery·Maintenance Manual for Oriental Son

Automatic Transmission

Function:

he

voltage from the battery.

nition switch is turned on, A/T-

minal 71) applies voltage on

tery

amp clutch control (DCC) solenoid valve

unction:

amp clutch control solenoid valve can

lic pressure of the damp

en

tatus of 70% to

it:

em

le is

C solenoid valve is closed; when

ycle shall

be on or off by the input values from oil
tem

e sensor, automobile speed sensor,

throttle position sens

put sha

s

, output

rotation sp

ibitor

h.

A/T control relay (Terminal 1) receives t
anode
When the ig
ECU receives the battery anode voltage
through the ignition switch (not indicated in
the figure).
A/T-ECU (Ter
A/T control relay (Terminal 4) and A/T
control relay is on.
When the A/T control relay is on, the bat
supplies voltage to A/T-ECU (Terminal 2
and 3).




D

63

F
D
adjust the hydrau
clutch control valve. It carries out load
cycles according to A/T-ECU signals. Wh
the solenoid valve is at the s
95%, the damp clutch is fully engaged and
when the solenoid valve is at the status of
0%, the damp clutch is fully released.




System circu
Circuit operation: A/T relay provides syst
voltage to damp clutch control solenoid
valve (Terminal 10). When the load cyc
on, the DC
the load cycle is off, the DCC solenoid valve
is on.
A/T-ECU determines if the load c

幻灯片

A/T control

relay

A/T-ECU

Overdrive

solenoid valve

Low/reverse
solenoid valve

Underdrive
solenoid valve

Second gear
solenoid valve

DCC solenoid
valve

peratur

or, in

ft rotation

peed sensor

shaft

s

eed

sensor and inh

witc