JPH0542678Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a device for setting the posture of on-vehicle equipment, particularly for the purpose of improving the ease of getting on and off the vehicle.

[Prior Art] In general, automobiles are equipped with onboard equipment such as seats and steering wheels that can be adjusted to suit driving operations, but in recent years, automated devices have been developed to improve ease of getting in and out of the vehicle. Proposed. As a conventional device of this type, there is a
There are those shown in Publications Nos. 33569, 33570, and 33571.

This system tilts or telescopes the steering wheel from the driving position to the retracted position in conjunction with the ignition (engine) key removal operation when exiting the vehicle, and positions the steering wheel when getting into the vehicle. Similarly, when the ignition key is inserted, the steering wheel is automatically tilted or telescoped from the retracted position to the driving position, thereby improving ease of getting in and out of the vehicle.

In order to further improve the ease of getting on and off, in addition to driving the steering wheel,
The seat slide drive device is similarly energized to move the seat backwards when getting out of the vehicle, and when getting in the vehicle, the steering wheel, seat, etc. are positioned at the memorized driving position in conjunction with the insertion operation of the ignition key. The present applicant has proposed a posture setting device for on-vehicle equipment that improves ease of getting on and off and operability.

[Problems that the invention aims to solve] However, with conventional devices like this, when the ignition key is removed, the seat of the vehicle automatically moves backwards, making it difficult for the driver to get out of the car in a hurry. If I tried to do so, I too would move in unison with the seat, and there was a risk that my head or body would interfere with the door's sill or edge.

This invention focuses on the operation of attaching and detaching the seat belt, which must be fastened when driving a car, in such cases.
It is an object of the present invention to solve the above-mentioned problems by relating the posture setting device to the operation.

[Means for Solving the Problems] In order to achieve the above-mentioned object, this invention provides a posture of on-vehicle equipment that is driven by a drive device using an engine key detection device, etc. to improve the ease of getting on and off for passengers. The setting device includes a seatbelt attachment/detaching detection device and a control device, and the control device is configured to interrupt driving of the drive device when the seatbelt attachment/detachment is detected based on a signal from the attachment/detachment detection device. It is something that exists.

[Operation] When the occupant removes the ignition key to exit the vehicle, the seat, which is an on-vehicle accessory, is driven rearward. During this process, if the occupant quickly removes his or her seatbelt to get out of the vehicle, the seatbelt attachment/detaching detection device senses this and interrupts driving in response to a command from the control device. Since the seat that was moving stops in place, the occupant can get out of the vehicle without having his or her head interfered with anything between them.

[Example] Hereinafter, an example of this invention will be described based on the drawings.

1 to 6 are diagrams showing an embodiment of this invention.

First, the configuration will be explained. In FIG. 1, 1 is a passenger such as a driver, 2 is a seat, 3 is a control device, and 4 is a passenger.
is the steering column, 5 is the steering wheel, 6 is the seat belt switch (seat belt attachment/detachment detection device), and 7 is the ignition (engine).
key, 9 is the seat slide motor (drive device),
10 is a seat belt. The seat belt switch 6 emits a signal when the seat belt is taken off (removed) and put on (attached), and is provided, for example, at the buckle of the seat belt. Reference numeral 14 denotes a key switch provided on the steering column 4, into which the ignition (engine) key 7 is inserted.An engine key detection unit detects or judges whether the key 7 is inserted or removed and issues a signal. Applies to equipment. This switch 1
4 further includes an ignition switch 15 that is turned on by rotating the key 7.

The control device 3 has a circuit configuration as shown in FIG. That is, the control circuit 3 including the digital computer 31 drives and controls the seat slide drive motor 9 to adjust the driving position of the occupant. The computer 31 includes a CPU,
It is a general-purpose microcomputer with ROM and RAM configured in a single-chip LSi, and as is well known,
It reads necessary information according to a program stored in the ROM, performs predetermined processing, and issues output signals to the relays 34 and 34.

The information read into the computer 31 includes the manual switch 8, automatic adjustment switch 11, seat slide amount detection sensor 71, and key switch 1.
4, ignition switch 15, seatbelt switch 6, and other signals.

When the control device 3 receives these signals, the computer 31 determines whether the vehicle is getting off the vehicle or getting on the vehicle, and as described later, the circuit is configured such that the seat can be automatically set in an appropriate position. The control device 3 also includes a manual switch 8 circuit in addition to this automatic circuit.

The manual switch 8 has a movable contact 81 and a fixed contact 8
3, 84 (in the figure, other contacts 85, 86
By touching the movable contact 81 with either the upper or lower fixed contacts 83, 84, the signal from the fixed contact is input to the computer 31 via the inverter, and the key switch 14 is input to the computer 31 via the inverter.
When there is an input, the computer 31 outputs an output signal to energize the corresponding relays 33 and 34, respectively. Corresponding to the output signal, the seat sliding motor 9 is driven to rotate forward or backward.

The automatic adjustment switch 11 includes a memory switch 51, 1st to 20th memory position switches 52, 53...
These switches are all momentary-on type switches, with one end grounded and the other end connected to the computer 31 via an inverter.
It is connected to the. The automatic adjustment switch 11 allows the seat position position to be stored in each memory position, and the manual switch 8 can be operated or the relay of the playback operation can be performed without a memorization operation (turning on the memory position switch 52 or 53 after the memorization switch is turned on). When the motor drive by energization is finished, the latest seat slide position is set to 1st and 2nd.
It is stored in a memory area different from the memory area of . That is, if the seat slide position changes after the manual switch is operated or after the playback operation ends, the microcomputer 31 stores the position.

FIG. 4 shows a seat slide mechanism as a seat drive device. In FIG. 4, when the seat slide motor 11 rotates, the lead screw 10 is moved through the interlocking wire 103 and worm gear 104.
5 rotates, and since the lead screw nut 106 is fixed, the slide outer (fixed to the seat) 107 moves back and forth.

In addition, if the movable contact 82, fixed contacts 85, 86, and position detection sensor 72 shown in Fig. 2 are used to set the posture by the seat lifter, steering tilt, and telescope, the positions shown in Figs. 5 and 6 may be used.
Use the mechanism shown in the figure.

That is, in FIG.
When rotates, the coaxial side gear 109 rotates around the point of the sector gear 111 via the connecting pipe integrated with this, raising and lowering the point C, and connecting link 113 and rear link 115.
The seat surface can be raised and lowered through the

Further, in FIG. 6, by driving the motor 16, the shaft 121 is driven back and forth to tilt the steering wheel 5 (arrow view B), and by driving the motor 17, the shaft 122 is moved back and forth to tilt the steering wheel 5. The wheel 5 is telescoped (arrow view A).

Next, the effect will be explained. First, we will discuss seat position adjustment while driving.

While driving with both the key switch 14 and the ignition switch 15 on, the driver can freely adjust the seat sliding position by operating the manual switch 8. For example, when moving the seat sliding position forward, the movable contact 81 of the manual switch 8 is energized to the fixed contact 83.
Upon receiving this signal, the computer 31 issues a signal to energize the relay 33 so that the slide motor 9 rotates. This causes the seat 2 to move forward. When the driver completes the adjustment, he/she should press the manual switch 8.
, the movable contact 81 is in an open state. The computer 31 receives this signal and turns off the energization signal of the relay 33. Therefore, the motor 9 is stopped and the position can be adjusted to the driver's preference. To memorize this position, turn on the memory switch 51 of the automatic adjustment switch 11 and then turn on, for example, the first switch 52 to store the current seat slide position in the memory position corresponding to the first switch 52. It can be memorized. That is, the drive position is stored by storing the current count value of a counter that counts the number of pulse signals from the slide amount detection sensor 71 as a reference value.

Further, as described above, the memory switch 51 and the first,
After the manual switch 8 is operated by the counter that counts the number of pulse signals of the detection sensor 71 without operating the position switches 52 and 53 of 2, or
If the sheet slide position at the end of the reproduction operation changes, the position can be stored in memory areas other than the first and second memory areas.

If the driver is a different driver, similarly operate the manual switch 8 to select the seat slide position suitable for the driver, and then select the memory switch 51 of the automatic adjustment switch 11.
When the second switch 53 is turned on, the second switch 53 is turned on, and the first switch 52 described above is operated, the seat slide position at this time can be similarly stored in the memory location corresponding to the second switch 53. can.

Next, when reproducing the memorized seat slide position, the first switch 52 of the automatic adjustment switch 11 is pressed.
Alternatively, when the switch corresponding to the reproduced seat slide position of the second switch 53 is turned on, the seat slide position stored corresponding to the operated switch is compared with the current value, and the position is adjusted in the direction where the deviation becomes 0. Relay 3 so that motor 9 rotates
3 and 34 are energized. In this way, the motor stops at a point that matches the stored value, allowing regeneration.

Next, the operation during normal getting on and off will be explained. When the occupant attempts to exit the vehicle and pulls out the engine key and opens the key switch 14 and ignition switch 15, the computer 31 receives these signals and the signal from the seat belt switch 6 and moves the seat slide position to the retracted position. Relay 3 to make
3 is energized to drive the slide motor 9 in forward rotation.

That is, when the driver (occupant) removes the key 7 and unfastens the seatbelt 10, steps 1 to 2 are performed in the flowchart of FIG.
3, 4, 5, 6, 7, and 8, the relay 33 is energized, and the seat 2 is slid to the retracted position.
When the deviation becomes 0, the process proceeds to steps 7, 8, and 9, at which point the computer 31 stops energizing the relay 33 and stops driving the motor 9. In this way, when the occupant exits the vehicle, the distance between the occupant's body and the steering wheel can be maintained, and the occupant can easily exit the vehicle by removing the seat belt 10, thereby improving the ease of exiting the vehicle.

Furthermore, since there is more space when riding, riding comfort is also improved. When the occupant inserts the engine key 7 after getting into the vehicle, the process proceeds to steps 11, 12, 13, 14, 15, and 16 in FIG. The memory area No. 2 refers to the memory area of the computer 31 that compares the memory value of the previous driver's seat slide position stored in a different memory area with the counter value of the current position. The output signal energizes the relay 34 and drives the motor in reverse. When the deviation becomes 0, the computer 31 turns off the output signal, and the relay energization ends (steps 15, 17, and 18), so the motor 9 stops driving, and the driver does not have to adjust the seat slide position before getting out of the vehicle. can be played without,
Improve operability.

When the driver tries to get out of the vehicle in a hurry, the seat as described above is moving to the retracted position until the driver takes off the seat belt 10. At this point, when the driver tries to get out of the car in a hurry and removes the seat belt 10,
The signal from the seat belt switch 6 is sent to the computer 3.
1 receives the signal and proceeds from step 4 to steps 19, 20, and 21, and outputs a signal to terminate (interrupt) the energization of the relay 33. Therefore, the drive of the motor 9 is stopped, and the movement of the seat 2 is stopped. This prevents the driver from hitting his or her head on the door side door when trying to get out of the vehicle.

Furthermore, if the occupant fastens the seat belt 10 while the seat 2 is being slid while riding, the process proceeds from step 12 to step 19, 20, and 21, and the driving of the motor 9 is interrupted, so the movement of the seat 2 is stopped and the seat belt 10 is fastened. The belt does not put pressure on your body, improving safety.

In the present embodiment, only a seat slide device has been described as a drive device for on-vehicle equipment that is effective in improving ease of getting on and off, but the same control can be applied to drive devices such as a seat lifter, steering tilt, telescope, etc. Further, in this embodiment, a device that improves both the time of boarding and the time of exiting the vehicle has been described, but as a simple method, a device that improves only the time of getting off the vehicle may be used.

[Effect of the invention] As explained above, according to this invention,
In a posture setting device for onboard equipment, the configuration is such that the onboard equipment is driven by a drive device using an engine key detection device or the like to improve ease of getting on and off for passengers.
A seatbelt attachment/detaching detection device and a control device are provided, and the control device is configured to interrupt driving of the drive device when the seatbelt attachment/detachment is detected by a signal from the attachment/detaching detection device. This has the effect of eliminating the possibility that the driver's head will interfere with the door jamb or edge when the driver tries to get out of the car in a hurry.

[Brief explanation of the drawing]

Figure 1 is a side view of one embodiment of this invention;
3 is a flowchart showing the operation of FIG. 2, FIG. 4 is a perspective view of the seat slide drive mechanism, and FIG. 5 is a perspective view of the seat lifter drive mechanism. FIG. 6 is a diagram showing the steering drive mechanism. 1... Passenger (driver), 2... Seat, 3...
Control device, 4... Steering column, 5... Steering wheel, 6... Seat belt, 7...
... Engine key, 8 ... Manual switch, 9 ... Slide motor (drive device), 10 ... Seat belt, 11 ... Automatic adjustment switch, 12 ... Lifter motor, 14 ... Engine key switch, 15 ...
...Ignition switch, 31...Microcomputer, 33, 34...Relay.

Claims (1)

[Scope of utility model registration request] In a posture setting device for on-vehicle equipment that improves the ease of getting on and off the vehicle by driving the on-board equipment using a drive device using an engine key detection device or the like, the control device is provided with a seat belt attachment/detaching detection device and a control device. The apparatus for setting the attitude of an on-vehicle accessory is configured to interrupt driving of the drive device when attachment or detachment of a seatbelt is detected based on a signal from the attachment or detachment detection device.