Automatic transmission-47
4. Operating mode of transmission
TCU realizes the effective control for the
transmission according to the accurate information acquired form the input data and
complete control for the output data. To ensure the input and output of TCU is actual and effective, TCU executes the data sense
command for hardware and software. For the failure information found in the following operating mode described in detail, TCU
will give the corresponding response.
Similarly, it exists the possibility that could not find out the failure cause. If encounter the condition, the operation for transmis
sion is determined difficultly.
Following condition will effect the operation of transmission, but will not appear the detection failure information.
a. Power supply failure
The transmission adopts the 3-Gear lame Home Mode (LHM) irrelevant to car speed.
If occur the intermittent power supply, then TCU will start form 4-Gear and is switched to the proper gear to meet the
requirement of current work. At this time, it will not monitor the power supply status.
b. The transmission fluid temperature is higher than 135
If found the transmission temperature is high:
The torque converter lock clutch will start in low speed and the car will have the vibration.
Some cars will have the condition that the mode indicator lamp is flash.
The reason for the condition may be the transmission fluid temperature is high or acquire the inaccurate single form the
temperature sensor. If occurs the temperature failure, it may find the high temperature operating condition.
c. Failure of ON/OFF solenoid valve
If one of the solenoid valves has the mechanical failure, TCU will not find the failure. At this time, the failure operation of
transmission will be determined according to the solenoid valve with failure. The characteristic of different solenoid valve failure
is listed in Table 6.1.2.
reverse pin
gear indication pin
Gear sensor(black)
Figure 6.1.1 Description for wire bundle pin
Содержание hover
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Страница 34: ...Clutch 4 Cluchcontrolmechanism clutch master cylinder N m specified torque...
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Страница 104: ...Automatic transmission 28 Figure 5 1 parking and neutral position...
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Страница 116: ...Automatic transmission 40 Figure 5 7 Automatic 3 rd Gear locking and manual 3 rd Gear locking...
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Страница 120: ...Automatic transmission 44 Figure 5 9 Automatic 4th Gear locking...
Страница 154: ...Figure 8 39 Valve fixing plug and pin Figure 8 40 Torque converter release ball and spring...
Страница 157: ...Figure 8 45 Lower valve Figure 8 46 Position of upper valve and detection ball Figure 8 47 solenoid valve 5 and damper...
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