JPH068026U - Interlock device for automobile auto door - Google Patents

Abstract

(57) [Abstract] [Purpose] To ensure that a vehicle with an automatic transmission can open the door only when the vehicle is stopped with a simple structure. A door opening / closing control means e for controlling the operation of a door opening / closing mechanism a so as to open / close the door according to an operation of an opening / closing switch b, and a parking lock provided by the door opening / closing control means e and operated by an operation state detecting means d. Provided is a door opening prohibiting section f which enables the door opening operation of the door opening / closing mechanism a only when it detects that the mechanism c is performing the locking operation and prohibits the door opening operation when the mechanism is not performing the locking operation. It was

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an interlock device for an automatic door of an automobile such as a bus.

[0002]

[Prior art]

 Conventionally, as an interlock device for an automatic door of an automobile, which is controlled so that the door does not open during traveling, for example, a device disclosed in Japanese Patent Laid-Open No. 56-112315 is known.

This conventional device has a configuration including a vehicle speed detection response device that detects the vehicle speed and prohibits opening of the door by the door opening / closing device when the vehicle is traveling. As a result, even in an inertial running state where the accelerator is not depressed, the certainty of the operation can be improved by not opening the door as long as the vehicle is running.

[0004]

[Problems to be solved by the device]

 However, the above-described conventional device requires a vehicle speed detection response device that detects the vehicle speed and controls the operation of the door opening / closing device according to the detection result, so the structure becomes complicated and the cost is high. There was a problem of inviting.

In addition, although the conventional device can open the door when the vehicle speed becomes 0, for example, when the vehicle is stopped by the brake operation, it is possible to run even in the idling state by releasing the brake. However, there was insufficient certainty to achieve the purpose of prohibiting the opening of the door in the running state.

The present invention has been made by paying attention to the conventional problems as described above. In a vehicle having an automatic transmission, a door can be reliably opened only when the vehicle is stopped with a simple structure. The purpose is to do so.

[0007]

[Means for Solving the Problems]

 Therefore, in order to achieve the above-mentioned object, in the present invention, as shown in the claim correspondence diagram of FIG. 1, a door opening / closing mechanism a for opening and closing a door, an opening / closing switch b for instructing opening / closing of the door, and an automatic transmission are provided. The parking lock mechanism c that locks the output shaft of the automatic transmission in conjunction with the selection operation of the machine at to the parking range, the operation state detection means d that detects the operation state of the parking lock mechanism, and the opening / closing switch b. Door opening / closing control means e for controlling the operation of the door opening / closing mechanism a so as to open / close the door in response to the operation, and the parking lock mechanism c provided by the door opening / closing control means e by the operation state detecting means d. The door opening operation of the door opening / closing mechanism a is enabled only when the lock operation is detected, and the door opening operation is performed when the lock operation is not performed. It provided the door open prohibition unit f to stop.

[0008]

[Action]

 When the select lever of the automatic transmission at is operated to the parking range, the door opening prohibiting portion f of the door opening / closing control means e enables the door opening operation of the door opening / closing mechanism a. Therefore, when the opening / closing switch b is operated to the opening side, the door opening / closing mechanism a opens the door.

That is, when the automatic transmission at is set to the parking range, the parking lock mechanism c of the automatic transmission at locks the output shaft and the vehicle is reliably stopped even if the road surface is inclined. . In this way, the door can be opened when the vehicle is securely stopped.

On the other hand, when the select lever of the automatic transmission at is operated to a range other than the parking range, the door opening prohibiting part f prohibits the opening operation of the door. Therefore, even if the opening / closing switch b is operated to the opening side, the door opening / closing mechanism a does not open the door.

Thus, when the output shaft of the automatic transmission at is not locked and there is a possibility of traveling including coasting, the opening of the door is prohibited.

[0012]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

First, the configuration of the embodiment will be described.

FIG. 2 is a side view showing an automobile (small bus) C having an interlock device for an automobile automatic door according to an embodiment of the present invention. The automobile C is provided with a door D on a side surface of a vehicle body. The door D is opened and closed by a door opening / closing mechanism, and the door opening / closing mechanism is provided with a door motor (see FIG. 4) 1 as a driving means. Since the door opening / closing mechanism is well known, its illustration and detailed description are omitted.

The vehicle C has a structure in which the driving force of the engine E provided below the driver's seat is transmitted to the rear wheels via the automatic transmission AT. A select lever SL for operating the operation of the automatic transmission AT is provided beside the driver's seat, and an opening / closing switch for controlling the driving of the door motor 1 (opening / closing of the door) is provided. A switch 2 is provided (see FIG. 4).

As shown in FIG. 3, the automatic transmission AT has a parking gear 6a provided on the output shaft 5 of the automatic transmission AT, and the output gear 5 rotates by meshing with the parking gear 6a. It has a parking pole 6b that restricts the movement of the select lever SL, and a parking rod 6c that operates the parking pole 6b in conjunction with the operation of the select lever SL. A parking lock mechanism 6 is provided in which the wing pole 6b meshes with the parking gear 6a.

Next, FIG. 4 is a schematic diagram showing the embodiment apparatus. The automatic transmission AT has a built-in gear train GT in which the output rotation of the engine E is input via a torque converter TC. ing. The height of the line pressure for operating the various friction elements of the gear train GT and the supply / stop of the supply thereof are performed by the hydraulic pressure control circuit CV, and a valve in the hydraulic pressure control circuit CV, not shown, is omitted. Are switched according to the operation of the select lever SL and the driving of the solenoids 11 to 15. Further, the drive of each solenoid 11 to 15 is controlled by the A / T control unit 10. That is, the A / T control unit 10 includes an inhibitor switch 21 including a 1-range switch, a 2-range switch, a D-range switch, a P-range switch, and an R-range switch as input means, a vehicle speed sensor 22, and an oil temperature sensor. 23, and signals from an idle switch 31, a full throttle switch 32, a throttle sensor 33, and an engine speed sensor 34 are input via an ECC control unit 30 that controls the drive of the engine E. . Then, based on these signals, the drive of the line pressure solenoid 11, the lockup solenoid 12, the first shift solenoid 13, the second shift solenoid 14, and the timing solenoid 15 is controlled.

A signal for detecting the P range of the inhibitor switch 21 is output to the prohibition relay switch 3 via the A / T control unit 10. The prohibition relay switch 3 is provided in the opening / closing control circuit 4 that controls the driving of the door motor 1 based on the operation of the opening / closing switch 2, and when the signal for detecting the P range is input, the door motor 1 It has a structure that prevents open drive. That is, the opening / closing control circuit 4 has two relay switches (not shown) as in the prior art described in the above-mentioned conventional publication, and is configured to rotate the door motor 1 forward and backward by switching between them. There is. The prohibited relay switch 3 is provided in series with a coil of a relay switch that is excited when the door motor 1 is driven to open. When the prohibited relay switch 3 operates, a relay switch not shown in the figure It is designed not to be excited. Since the configurations of the opening / closing control circuit 4 and the inhibition relay switch 3 are the same as those of the conventional art, detailed description will be omitted.

Next, the control of the prohibition relay switch 3 will be described based on the flowchart of FIG.

Step 101 is a step of determining whether or not the P range is selected. If YES, the process proceeds to step 102, and if NO, the process proceeds to step 103.

Step 102 is a step in which the prohibiting relay switch 3 is turned off so that the door motor 1 can be opened and driven.

Step 103 is a step in which the prohibition relay switch 3 is turned on so that the door motor 1 cannot be opened and driven.

Next, the operation of the embodiment apparatus will be described.

A) When the vehicle is stopped When the vehicle is stopped and the select lever SL is operated to the P range, the prohibition relay switch 3 is turned off (steps 101 → 102). Therefore, the opening / closing control circuit 4 can be operated according to the operation of the opening / closing switch 2, and the door D is opened / closed according to the operation of the opening / closing switch 2.

As described above, when the select lever SL is operated to the P range, in the automatic transmission AT, the parking pole 6b meshes with the parking gear 6a, and the rotation of the output shaft 5 of the automatic transmission AT is restricted, so that the automobile C Does not drive including coasting. Therefore, when the door D is opened, the car C does not run.

B) When traveling is possible When the select lever SL of the automatic transmission AT is operated to a range other than the P range so as to be in a traveling state (however, this traveling state means either forward or reverse). Not only the above case is included, but also the state where the N range can run due to inertia is included.), And the prohibition relay switch 3 is turned on.

Therefore, even if the open / close switch 2 is operated, the door motor 1 is not driven to the open side, and thus the output shaft 5 of the automatic transmission AT is not locked and the vehicle travels including coasting. Door D is prohibited from opening when there is a possibility.

As described above, in the interlock device for an automatic door according to the embodiment of the present invention, the door D can be opened only when the automatic transmission AT is in the P range. When the door D is opened, the automobile C does not travel at all, including coasting, and has the effect of achieving high safety. In addition, as a means for detecting the opening operation condition of the door D. Since only the inhibitor switch 21 is used, the structure is simple and the cost can be reduced.

The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific configuration is not limited to this embodiment, and even if there is a design change within the scope not departing from the gist of the present invention. Included in the present invention.

For example, in the embodiment, the inhibitor switch 21 is used as the operation state detecting means for detecting the operation state of the parking lock mechanism 6, but it is possible to detect that the parking lock mechanism 6 is performing the lock operation. Any means may be used, and other two examples of the operating state detecting means will be briefly described with reference to FIGS. 6 and 7.

In FIG. 6, 7a is a movement amount detection switch (operating state detection means) for detecting the movement amount of the parking pole 6b. When the moving amount detection switch 7a detects that the parking pole 6b has moved enough to mesh with the parking gear 6a, it outputs a signal indicating that the locking operation is being performed.

In the example shown in FIG. 7, a parking rod movement amount detection switch (operating state detection means) 7b is provided in the distal direction of the parking rod 6c. That is, when the parking rod movement amount detection switch 7b detects that the parking rod 6c has moved enough to bring the parking pole 6b into mesh with the parking gear 6a, it outputs a signal indicating that the locking operation is being performed. It has a structure that

[0033]

[Effect of device]

 As described above, the interlock device for an automobile automatic door according to the present invention includes the operating state detecting means for detecting the operating state of the parking lock mechanism of the automatic transmission, and the parking lock mechanism performs the locking operation by the operating state detecting means. The open / close mechanism allows the door opening / closing mechanism to open the door only when it is detected, and the door opening prohibition part that prohibits the door opening operation when the lock operation is not performed. The output shaft of the machine is locked so that the door can be opened only when the vehicle does not run without the brake operation, which has the effect of improving the certainty of operation. As the detecting means, only the positional detecting means for detecting the parking range is required, so that the structure can be simplified and the cost can be reduced. It is obtained.

[Brief description of drawings]

FIG. 1 is a diagram corresponding to claims showing an interlock device for an automobile automatic door according to the present invention.

FIG. 2 is a side view showing a vehicle C equipped with an interlock device for an automobile automatic door according to an embodiment of the present invention.

FIG. 3 is an explanatory diagram showing a main part of the apparatus according to the embodiment.

FIG. 4 is a schematic explanatory view showing the overall outline of the embodiment apparatus.

FIG. 5 is a flowchart showing the control contents of the embodiment apparatus.

FIG. 6 is an explanatory diagram showing a configuration of a main part of another example of the embodiment.

FIG. 7 is an explanatory diagram showing a configuration of a main part of another example of the embodiment.

[Explanation of symbols]

 at Automatic transmission a Door opening / closing mechanism b Opening / closing switch c Parking lock mechanism d Operating state detecting means e Door opening / closing control means f Door opening prohibition unit

Claims (1)

[Scope of utility model registration request] 1. A door opening / closing mechanism for opening / closing a door, an opening / closing switch for instructing opening / closing of the door, and a parking for locking an output shaft of the automatic transmission in conjunction with a select operation of the automatic transmission in a parking range. A lock mechanism; an operating state detecting means for detecting an operating state of the parking lock mechanism; a door opening / closing control means for controlling the operation of the door opening / closing mechanism to open / close the door in response to an operation of the opening / closing switch; The door opening / closing mechanism is provided in the opening / closing control means and enables the door opening / closing operation of the door opening / closing mechanism only when the parking lock mechanism detects that the parking lock mechanism is performing the locking operation. When the locking operation is not performed, the door is opened. An interlock device for an automatic door of a vehicle, comprising: a door opening prohibition unit that prohibits opening operation.