JPS6421029U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a schematic configuration diagram of a vehicle automatic transmission according to an embodiment of the present invention, Fig. 2 is a conceptual diagram showing an example of its shift pattern, and Fig. 3 is an example of its PW and D range shift map. Figure 4 is a graph representing an example of a map for determining the duty rate, Figure 5 is a diagram showing the opening and closing of valves such as clutch engagement and clutch disengagement during driving, and Figure 6 is a diagram of the control program. FIG. 7 is a flowchart showing the starting routine of the control program.
FIG. 8 is a flowchart showing the rotation speed calculation routine in the control program, FIG. 9 is a flowchart showing the starting routine in the control program, and FIG. 10 is a flowchart showing the starting routine in the control program.
A flowchart showing the cMAKE1 and VacMAKE2 routines, FIG. 11 is a flowchart showing the AUS routine in the control program, FIG. 12 is a flowchart showing the CLLE routine in the control program, and FIG. 13 is the control program. FIG. 14 is a flowchart showing the speed change routine in the control program.
15 is a flowchart showing the NEAIDL routine in the control program, FIG. 16 is a flowchart showing the NEHOLD routine in the control program, and FIG. 17 is a flowchart showing the NEAIDL routine in the control program. 18 is a flowchart showing the Vac step release routine in the control program; FIG. 19 is a flowchart showing the air check routine in the control program; FIG. 20 is a flowchart showing the air check routine in the control program. 21 is a flowchart showing the ACi N routine in the control program, FIG. 21 is a flowchart showing the Vac return routine in the control program, and FIG.
Fig. 2 is a flowchart showing the CHANGE routine in the control program, Fig. 23 is a flowchart showing the gear N setting in the control program, and Fig. 24 is a flowchart showing the clutch on signal output routine in the control program. Flowchart showing,
Figure 25 shows the clutch/control program in the control program.
Flowchart showing off-duty signal output,
FIG. 26 is a flowchart showing clutch duty signal output in the control program, No. 27
Figure 28 is a flowchart showing the clutch release signal output routine in the control program, Figure 28 is a flowchart showing the diagnosis routine in the control program, and Figure 29 is the data reading routine in the control program. FIG. 30 is a flowchart showing an initialization routine in the control program;
FIG. 31 is a flowchart showing the judgment routine in the control program, FIG. 32 is a flowchart showing the VAC release routine in the control program, and FIG. 33 is a flowchart showing the treatment routine in the control program. FIG. 34 is a diagram showing the hysteresis characteristics of the clutch stroke. 11...Engine, 15...Friction clutch, 1
7...Gear type transmission, 21...Fuel injection pump,
23... Control rack, 25... Electromagnetic actuator, 27... Engine rotation sensor, 33
...Air cylinder, 35...Clutch stroke sensor, 37...Clutch touch sensor, 47,
49...Air tank, 53...Solenoid valve, 61...
Change lever, 65...Gear shift unit,
71... Control unit, 75... Gear position switch, 79... Vehicle speed sensor, 81... Accelerator pedal, 93... Microcomputer.

Claims (1)

[Scope of utility model registration request] A friction clutch connected to the engine, an air actuator for the clutch that operates the friction clutch, a gear type transmission connected to the friction clutch, a clutch stroke sensor that detects the clutch stroke amount, and a clutch stroke sensor that detects the clutch stroke amount. When the friction clutch is in an over-engaged state based on the clutch stroke amount detected by the clutch stroke sensor when the clutch is in a half-engaged state that realizes extremely low-speed running, the operating direction of the clutch air actuator is determined. On the other hand, if the friction clutch is in an over-clutch state, the operating direction of the air actuator for the clutch is switched to the clutch connecting side, and the air pressure is supplied to the air actuator for the clutch at a higher than normal air pressure. 1. An automatic transmission device for a vehicle, comprising: a control unit that realizes the half-clutch state by operating the transmission at the transmission rate.