JPH01249526A - Parking brake control device for automatic transmission type vehicle - Google Patents

Abstract

PURPOSE:To prevent a vehicle from running away, by locking a select lever in such a condition that a side brake lever is pulled, when the select lever is positioned in a range P or N, but by locking the same in a range P or N when the side brake lever is pulled. CONSTITUTION:A touch sensor 20 provided on a bracket 19 supporting a shaft 18 of a select lever 17 for an automatic transmission detects such a condition that the select lever 17 is set in a range P or N. Accordingly, a solenoid 15 provided on a side brake lever is energized in association with the detection so that a lock pin 16 is projected to inhibit the rotation of the side brake lever 1 in a brake releasing direction. Further, a lock mechanism having a similar structure is provided on the select lever 17 side so as to lock the select position in a range P or N. Thereby it is possible to prevent the select lever from being moved when the side brake is released.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention is an automatic transmission system equipped with an automatic transmission. This invention relates to a parking brake control device during automatic gear shifting, which has been implemented in Ii''!F.

(Prior art) In vehicles such as automobiles equipped with automatic transmissions, after the select lever is set to 1) range or N range and the engine is started, the idle speed remains high for some reason. If you shift to range or 1< range, the vehicle may start suddenly even if you do not press the accelerator pedal, causing an accident. To start the engine, move the select lever to 1) range or N range. The only way to prevent accidents is to allow them to be used only occasionally. Therefore, the driving idea is
Drivers are taught at driving schools to get into the habit of pulling the handbrake lever or depressing the foot brake pedal when shifting the select lever. This means that if your hand or foot is on the plagier device when starting the engine, even if the engine starts to run out of control,
This is because the braking operation can be performed immediately after that. However, in reality, this is rarely implemented.

(9. Problems to be solved by Ming) Although the present invention can avoid the runaway jIX accident if a vehicle equipped with an automatic transmission performs a predetermined operation,
This system was devised in view of the fact that this is not actually done, and the system is designed to automatically obtain a braking state in such a case.

(Means for Solving the Problems) As a means for solving the above problems, the present invention provides a sensor 20 (221 and handbrake lever 1) that detects when the select lever 17 of the automatic transmission is in the P range or the N range. A locking mechanism that locks when the handbrake lever 1 is pulled is provided, or a sensor that detects the pulled state of the handbrake lever 1 and a locking mechanism that locks the select lever 17 in the 1) range or the N range are provided, and the select lever 17 is set to the P range. Alternatively, an automatic transmission characterized in that the movement of the handbrake lever 1 is restricted when the handbrake is in the N range, or the select lever 17 is controlled so as not to move from the P or N range when the handbrake is released. The parking brake control device for the aircraft was obtained.

(Function) With this configuration, when the select lever 17 is set to P or N range to start the engine, and then the select lever 17 is switched to the driving range, the handbrake is applied, so if there is any cause So, even if the engine speed is high, there will be no sudden start. Conversely, when the handbrake is applied, the select lever 17 cannot be moved from the P range or the N range, so runaway can be prevented in this case as well.

(Example) Hereinafter, one example of the present invention will be explained with reference to the figures.
In the figure, l is the handbrake lever, and the vehicle body 2
It is rotatably supported by a shaft 4 on a bracket 3 provided on the side. This handbrake lever 1 has a grip 5 attached to its tip, and this grip 5
A button 6 is provided on the button 6 so that it can be pressed freely. 7 is a spring that applies force to the button 6 in the direction of protrusion.

The handbrake lever 1 is manufactured by pressing an iron plate and is hollow. A rod 8 with a button 6 attached to its tip is provided inside the rod.

The base of the handbrake lever 1 is box-shaped, and an abbreviated lever 10 having one end formed as a ratchet pawl 9 is rotatably supported by a shaft 11.
The ratchet pawl 9 is engaged with a ratchet gear 12 formed on the bracket 3 by being biased by a spring (not shown). The other end of this lever 10 is in contact with the base end of the rod 8 mentioned above. One end of a brake wire 13 is attached to the lower part of the base of the handbrake lever 1 by a shaft 14. The other end of this brake wire 13 is connected to a rear wheel brake mechanism. As shown in Fig. 2, a solenoid 1 is located at the base-L side of the handbrake lever 1.
5 is attached, and a lock pin 15 projected by this solenoid 15 faces the side of the lever 10, as shown in FIG. That is, when the lock pin 16 protrudes, the lever 10 cannot be rotated.

What is shown in FIG. 3 is a select lever 17 of an automatic transmission. This select lever 17 is supported by a bracket 19 on the vehicle body side by a shaft 18, and is adapted to obtain a gear shift position corresponding to its inclined position. bracket!
A touch sensor 2o is attached to 9 to detect whether the select lever 17 is in the P range or the N range. Since the actual shift operation by operating the select lever 17 is based on oil pressure, the oil pressure sensor 22 is attached to the circuit 21 where oil pressure is generated in the P range or (and) N range of this oil pressure path. The position of the select lever 17 can also be known from the output signal of the oil pressure sensor 22.

This device configured in this way has a select lever 17.
is in the P range or N range, this is detected by the touch sensor 20 or the oil pressure sensor 22, and when this detection occurs, the solenoid 15 is activated and the lock bin 1 is activated.
The relationship between the solenoid 15 and the lock pin 16 is such that the lock pin 16 is moved forward by a spring (not shown) and the lock pin 16 is not retracted by the solenoid 15. Due to the protrusion of the lock bin 15, the lever 10 cannot be rotated clockwise in FIG. 1, so the handbrake lever 1 cannot be returned to the handbrake release side. This can prevent runaway.

In the embodiment described above, the solenoid 15 and the lock pin 16 are used as the locking mechanism of the handbrake lever, but the structure of this part can also be changed as shown in FIG. That is, the rod 8 may be bent from the middle part about the shaft 23, and a solenoid 24 that pulls the rod 8 may be provided in the vicinity of the bend.With such a structure, the solenoid 24 is energized. By pulling the part on the lever 10 side from the shaft 23, the connection between the rod 8 and the lever 10 is severed, so even if the handbrake lever 1 is pushed down, the handbrake will not be released.

In the embodiment described above, the locking mechanism is attached to the side of the handbrake lever 1, and the side of the lock m is activated depending on the position of the select lever 17. It is also conceivable that the select position is locked in the P range or the N range, so that the select lever 17 cannot be moved when the hand brake lever is disengaged (released).

(Effects of the Invention) Since the present invention is a parking brake control device for an automatic transmission vehicle configured as described above, when the select lever is in the P range or the N range, the handbrake does not come off or the handbrake does not come off. If you do so, you can prevent the select lever from moving from the P or N range. Therefore, even if the engine speed partially increases for some reason, the engine will not run out of control.

[Brief explanation of the drawing]

Fig. 1 is a side view of a portion of a handbrake lever according to an embodiment of the present invention, Fig. 2 is a 'F side view of the handbrake lever of Fig. 1, and Fig. 3 is a side view of a select lever portion of an embodiment of the present invention. , 4th
The figure is a side view of a modification of the one shown in FIG. 3, and FIG. 5 is a side view of a part of the modification shown in FIG. 1... Hand brake lever 10... Lever 15... Solenoid 15... Lock bin I7... Select lever 2... Touch sensor 22... Oil pressure sensor patent Applicant Suzuki Motor Co., Ltd. Drawings engraving (
The contents are ¥:'g! None) 1 figure, 2 figures, 3 figures, ? 5 Figure procedure 7 City official document (Method) % formula % 2 Name of invention Parking brake control device for automatic transmission vehicle 3 Consideration for correcting = μ Relationship with matter Name of patent applicant +2081 Suzuki Motor Co., Ltd. 4. Agent
Person Address: 6 Nirifu no Tomo Building, Kanda Surugadai L, Chiyoda-ku, Tokyo Name (6271) Yumi Sae 2
・・）1,・ξ,′ t2.゛Pa□ (2 idiots) -5 hair 5? +li Date of official order: June 8, 1985 6, Drawing subject to amendment 7, ? 11i Correct contents @ Engraving of the drawings originally attached to the document / Attachment (no change in contents) Procedural amendment 1' Indication of 11 cases 1985 Hand-held Application No. 078486 2 Name of invention Automatic transmission vehicle Relationship with the person making the parking brake control device 3 correction Patent applicant name (208) Suzuki Motor Co., Ltd. 4 Agent Address 6 Shufunotomo Building 5, Kanda Surugadai L, Chiyoda-ku, Tokyo Date of correction order 5 “Spontaneous ” 6. Subject of amendment 7. In the 4th page, line 12 of the M-author's statement of contents, the phrase ``it depends'' is amended to ``not depended on it''.

Claims (1)

[Claims] (1) A sensor that detects when the select lever of the automatic transmission is in P range or N range and a locking mechanism that locks when the hand brake lever is pulled, or a sensor that detects when the hand brake lever is pulled. A locking mechanism that locks the select lever in P range or N range is provided, and the movement of the handbrake lever is restricted when the select lever is in P range or N range, or the select lever is in P range when the handbrake is released. Alternatively, a parking brake control device for an automatic transmission vehicle is configured to control the vehicle so that it does not move from the N range.