JPS6288637U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is an overall configuration diagram of the safety device of the constant speed traveling device of this invention, Fig. 2 is a block diagram of an embodiment of this invention, and Fig. 3 is the arithmetic processing by the control program of the microcomputer in Fig. 2. FIG. 4 is a calculation flowchart showing detailed calculation processing of the slow deceleration control routine of FIG. 3; FIG. 5 is a characteristic curve diagram showing the relationship between throttle valve opening and time in this embodiment; FIG. 6 is a calculation flowchart showing the calculation processing of the microcomputer of the second embodiment, FIG. 7 is a calculation flowchart showing the detailed calculation processing of the deceleration control routine in FIG. 6, and FIG. A characteristic curve diagram showing the relationship between the throttle valve opening and time according to an example, FIG. 9 is a calculation flowchart showing detailed calculation processing of the deceleration control routine of the third embodiment, and FIG.
FIG. 11 is a characteristic curve diagram showing the relationship between the throttle valve opening and time according to the embodiment; FIG. 11 is a characteristic curve diagram showing the relationship between the throttle valve opening and time showing multi-stage deceleration control in another modified example; Figure 12 is a block diagram of a configuration that similarly performs slow and rapid deceleration control by checking the throttle valve opening, and Figure 13 is a block diagram of a configuration that similarly performs gentle and rapid deceleration control based on vehicle speed and engine rotational speed. FIG. 14 is a block diagram showing the configuration of a throttle actuator using an electric motor, FIG. 15 is a schematic diagram of an acceleration sensor consisting of a mercury switch, and FIG. 16 is a schematic diagram of an acceleration sensor consisting of a piezoelectric element. . 1... Vehicle speed sensor, 2... Acceleration detection means, 3
...control device, 10...actuator, 51...
. . . Determination means, 52 . . . Release means, 53 . . . Slow deceleration means, 54 . . . Rapid deceleration means.

Claims (1)

[Scope of Claim for Utility Model Registration] Impact force acting on a vehicle in a safety device for a constant-speed traveling system that controls the opening and closing of an engine throttle valve via an actuator to maintain a set vehicle speed. acceleration detection means for detecting the acceleration detection means; determination means for determining the presence or absence or magnitude of a detection signal from the acceleration detection means; a cancellation means for determining cancellation of the constant speed driving control when the vehicle speed has decreased below a predetermined vehicle speed; When the throttle valve is closed due to the cancellation of the constant speed running control being determined by the means, a gradual deceleration means has a stroke in which the throttle valve is gradually closed as part of the closing stroke of the throttle valve; A safety device for a constant speed traveling system, comprising: rapid deceleration means for rapidly controlling a throttle valve to close to an idle opening when a detection signal from an acceleration detection means is determined to be present or larger than a predetermined value. .