JPH01152834U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the overall configuration of an automatic transmission according to an embodiment of the present invention, FIG. 2 is a conceptual diagram illustrating an example of a shift pattern in the device shown in FIG. 1, and FIG. Fig. 4 is a graph showing an example of a map for determining the duty rate, Fig. 5 is a diagram showing the shift map of PW and D ranges in the shift pattern of FIG. 6 is a flowchart showing the main routine of the control program in the block diagram shown in FIG. 1, FIG. 7 is a flowchart showing the starting routine of the control program, and FIG. A flowchart showing the starting routine in the control program, FIG.
CLLE] Flowchart showing the routine, 1st
Figure 0 is a diagram showing the relationship between the clutch stroke and the clutch operation time during that stroke, Figure 11 is a diagram to explain the slight movement process in the start process shown in Figure 8, and Figure 12 is a diagram showing the relationship between the clutch stroke and the clutch operation time during that stroke. FIG. 8 is a diagram for explaining the duty control of the clutch air actuator in the start process, and FIG. 13 is a hysteresis characteristic diagram 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, 53 ... Solenoid valve, 79 ... Vehicle speed sensor,
95...Microcomputer, 97...Storage device.

Amendment 1.7.13. The scope of claims for utility model registration is amended as follows.

[Scope of Claim for Utility Model Registration] A friction clutch connected to the engine, an air actuator for the clutch that operates the friction clutch, an engine rotation sensor that detects the rotation speed of the engine, and a gear connected to the friction clutch. A clutch stroke sensor detects the clutch stroke amount, the engine rotation speed from the engine rotation sensor and the clutch stroke amount from the clutch stroke sensor are input, and the duty ratio for the clutch air actuator is determined. When the control unit determines that the peak has been suppressed due to a decrease in the engine rotation, the stroke amount from the clutch stroke sensor is set to the preset value of the clutch assuming that torque can be transmitted. An automatic transmission device for a vehicle, characterized in that the peak of actual engine rotation is determined by determining whether it corresponds to a stroke. The brief description of the drawing has been amended as follows. ``Figure 8...Figure 13'' from page 59, line 20 to page 60, line 2 of the specification are deleted.

Claims (1)

[Scope of Claim for Utility Model Registration] A friction clutch connected to the engine, an air actuator for the clutch that operates the friction clutch, an engine rotation sensor that detects the rotation speed of the engine, and a gear connected to the friction clutch. A clutch stroke sensor detects the clutch stroke amount, the engine rotation speed from the engine rotation sensor and the clutch stroke amount from the clutch stroke sensor are input, and the duty ratio for the clutch air actuator is determined. and a control unit to set the stroke amount from the clutch stroke sensor when determining that the engine rotation has reached a peak due to a decrease in engine rotation, so that the stroke amount from the clutch stroke sensor is set in advance to a duty ratio for the clutch air actuator. 1. An automatic transmission device for a vehicle, characterized in that the peak of the actual engine rotation is determined by determining whether the stroke corresponds to the stroke of the clutch obtained by the above.