JPH068027U - Interlock device for automobile door - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent the car from moving with the door open. A parking lock mechanism c for fixing a drive shaft b of a wheel by driving a locking actuator a, an opening / closing sensor d for detecting an open / closed state of a door, and an open / close sensor d for detecting an open state of the door A lock control means e for outputting a signal for operating the parking lock mechanism c to the lock actuator a is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an interlock device for an automobile door.

[0002]

[Prior art]

 Conventionally, as a vehicle door interlock device for controlling the vehicle so that the vehicle does not travel with the door open, for example, a device described in Japanese Patent Laid-Open No. 56-112315 is known.

This conventional device includes 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 running, and an automobile when the vehicle is running when the door is open. It had a configuration with a brake actuator that operates to stop. This prevents the door from being opened as long as the vehicle is running even in an inertial running state where the accelerator is not depressed, and when the vehicle starts running while the door is open, It was possible to stop the car by driving the brake actuator.

[0004]

[Problems to be solved by the device]

 However, in the above-mentioned conventional device, the brake actuator is driven only after the vehicle starts to move with the door open, so the door can be operated until the vehicle is stopped by the brake actuator. There was a problem that the vehicle might run with the vehicle left open.

The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to prevent the automobile from moving with the door opened.

[0006]

[Means for Solving the Problems]

 Therefore, in order to achieve the above-mentioned object, according to the present invention, as shown in the claim correspondence diagram of FIG. 1, a parking lock mechanism c for fixing a drive shaft b of a wheel by driving a locking actuator a, and a door opening / closing mechanism. An open / close sensor d for detecting the state and a lock control means e for outputting a signal for operating the parking lock mechanism c to the lock actuator a when the open / close sensor d detects the open state of the door are provided.

[0007]

[Action]

 When the vehicle is stopped and the door is opened, the lock control means e drives the locking actuator a to operate the parking lock mechanism c as the opening / closing sensor d detects the door opening. As a result, the vehicle does not drive with the drive shaft b fixed and the door open even if the road surface is inclined.

When the door is closed, the lock control means e drives the lock actuator a to open the parking lock mechanism c. As a result, the drive shaft b is opened and the vehicle can run.

[0009]

【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 door according to an embodiment of the present invention. This automobile C is provided with a door D on a side face 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. 5) 1 as a driving means. Since the door opening / closing mechanism is well known, illustration and detailed description thereof are omitted.

The vehicle C has a structure in which the driving force of an engine E provided below the driver's seat is transmitted to the rear wheels RW via an automatic transmission AT. A select lever SL for operating the operation of the automatic transmission AT is provided beside the driver's seat, and the drive of the door motor 1 (for opening and closing the door) is controlled. An open / close switch 2 is provided (see FIG. 5).

In the automatic transmission AT, as shown in FIG. 3, a parking gear 6a provided on the output shaft 5 of the automatic transmission AT and the output shaft 5 is rotated by meshing with the parking gear 6a. Parking pole 6b for restricting the operation, a parking rod 6c for operating the parking pole 6b in conjunction with the operation of the select lever SL, a plunger 6e protruding when the power is turned on, and the parking pole 6b is pushed to a position where it meshes with the parking gear 6a. The parking pole 6b has a park lock solenoid (locking actuator) 6d, and the parking pole 6b slides by sliding the parking rod 6c as the select lever SL is set to the P (parking) range or by driving the parking lock solenoid 6d. The parking lock mechanism 6 that meshes with the parking gear 6a It is provided.

Further, as shown in FIG. 4, in the automobile C, a driver operates a parking lever (not shown) in the middle of the propeller shaft PS that transmits the driving force from the automatic transmission AT to the rear wheels RW. The center brake 8 for fixing the propeller shaft PS is provided, and the rear wheels RW are provided with foot brakes 9, 9 for fixing the rear wheels RW by operating a foot pedal (not shown) in the driver's seat. There is.

Next, FIG. 5 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.

Further, the signal for detecting the P range of the inhibitor switch 21 is output to the opening / closing control circuit 50 and the parking lock control circuit (lock control means) 40 via the A / T control unit 10. Has become.

The opening / closing control circuit 50 is a circuit for controlling the driving of the door motor 1 based on the operation of the opening / closing switch 2, and the opening / closing control circuit 50 is the same as that described in the above-mentioned conventional publication. Since the door motor 1 is configured to have two relay switches (not shown) and switch between them, the description thereof will be omitted.

The parking lock control circuit 40 is a circuit for controlling the drive of the parking lock solenoid 6d based on signals from a door sensor (opening / closing sensor) 41, a center brake sensor 42, a foot brake sensor 43, and an inhibitor switch 21. is there. The door sensor 41 is a switch structure sensor that is provided between the door D and the vehicle body and is turned on when the door D is opened. The center brake sensor 42 is used when the center brake 8 is braking. The foot brake sensor 43 is a sensor that outputs a signal, and the foot brake sensor 43 is a sensor that outputs a signal when the foot brakes 9, 9 are performing braking operation.

Next, drive control of the parking lock solenoid 6d by the parking lock control circuit 40 will be described with reference to the flowchart of FIG.

Step 101 is a step of determining whether or not the door D is open based on a signal from the door sensor 41. If YES, the process proceeds to step 102, and if NO, the process proceeds to step 106.

Step 102 is a step of determining whether or not the foot brake 9 is performing a braking operation based on a signal from the foot brake sensor 43. If YES, the process proceeds to step 103, and if NO, the process proceeds to step 106.

Step 103 is a step for determining whether or not the center brake 8 is performing a braking operation based on the signal from the center brake sensor 42. If YES, the process proceeds to step 104, and if NO, the process proceeds to step 106.

Step 104 is a step of determining whether or not the select lever SL is in the P range based on a signal from the inhibitor switch 21, and if YES, the process proceeds to step 105, and if NO, the process proceeds to step 106.

Step 105 is a step for performing a process of driving the parking lock solenoid 6d, which brings the parking lock mechanism 6 into a locked state.

In step 106, the parking lock mechanism 6 is unlocked by a process of stopping the driving of the parking lock solenoid 6d.

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

When the vehicle C is stopped and the door D is opened, neither the center brake 8 nor the foot brake 9 is braking, and the select lever SL is not operated to the P range. When the vehicle C may start to move, the park lock solenoid 6d is driven (steps 101 → 102 → 103 → 104 → 105) to bring the parking lock mechanism 6 into the locked state. That is, the plunger 6e of the parking lock solenoid 6d projects and the parking pole 6b rotates to mesh with the parking gear 6a.

Therefore, in a state where the output shaft 5 of the automatic transmission AT is fixed and the vehicle C has the door D open, for example, the road surface is inclined, or the select lever SL is set to a position other than N (neutral) range. Even if it is operated to the driving range, it will not drive.

Further, when the select lever SL is operated to the P range, the parking solenoid 6d is not driven, but the parking pole 6b is slid by the sliding of the parking rod 6c linked to the operation of the select lever SL. Mesh with. Therefore, in this case as well, the vehicle D will not travel with the door D open. Further, when the select lever SL is operated to a position other than the P range from this state, the parking lock solenoid 6d is driven immediately by the parking lock solenoid 6d unless the brakes 8 and 9 are braked. The car C does not run in the locked state.

However, since the vehicle C does not run while the center brake 8 or the foot brake 9 is being braked, the parking lock mechanism 6 is unlocked. If the braking operation of the brakes 8 and 9 is stopped from this state, the park lock solenoid 6d is driven to bring the parking lock mechanism 6 into the locked state.

As described above, the interlock device for a vehicle door according to the embodiment of the present invention has the effect that the vehicle C does not run when the door D is open.

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

For example, in the embodiment, the case where the parking lock mechanism 6 built in the automatic transmission AT is used as the parking lock mechanism for fixing the drive shaft when the door D is open has been described. Instead of the parking lock mechanism 6, the center brake 8 or the foot brake 9 shown in the embodiment may be used. In this case, it can also be applied to vehicles equipped with a manual transmission. Further, a lock actuator for braking the brakes 8 and 9 is added to the brakes 8 and 9, and the actuators are drive-controlled in the same manner as in the embodiment.

Further, in the embodiment, only the parking lock mechanism and its control portion, which are the main parts of the present invention, have been described. Of course, like the embodiment, when the door is opened, the accelerator pedal is idling. It may be used in combination with an accelerator interlock device that locks the vehicle in position or an interlock device that keeps the doors open during driving.

In the embodiment, the door D is opened and closed by driving the door motor 1, but other actuators such as an air cylinder may be used, or the door D may be opened and closed manually.

Further, in the lock control by the parking lock control circuit 40 of the embodiment, steps 102 and 103 in the flowchart of FIG. 6 may be omitted.

[0037]

[Effect of device]

 As described above, the interlock device for a vehicle door of the present invention includes the parking lock mechanism that fixes the drive shaft of the wheel by driving the lock actuator, and the open / close sensor that detects the open / closed state of the door. When the open / close sensor detects the open state of the door, lock control means for outputting a signal for operating the parking lock mechanism to the lock actuator is provided, so that the vehicle is open when the door is open. The effect of not traveling is obtained.

[Brief description of drawings]

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

FIG. 2 is a side view showing a car C equipped with a door interlock device for a car 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 an explanatory diagram showing a main part of the device according to the embodiment.

FIG. 5 is a schematic explanatory view showing the overall outline of the apparatus of the embodiment.

FIG. 6 is a flowchart showing the control contents of the embodiment apparatus.

[Explanation of symbols]

 a lock actuator b drive shaft c parking lock mechanism d open / close sensor e lock control means

Claims (1)

[Scope of utility model registration request] 1. A parking lock mechanism for fixing a drive shaft of a wheel by driving a locking actuator, an open / close sensor for detecting an open / closed state of a door, and a door open state when the open / close sensor detects the open state of the door,
An interlock device for an automobile door, comprising: lock control means for outputting a signal for operating a parking lock mechanism to a lock actuator.