JPH0125054Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device that prevents a vehicle equipped with an automatic transmission from starting against the driver's will.

Most automatic transmissions change the select position by selecting and switching the select lever to one of the following select positions: parking range, reverse range, neutral range, drive range, second range, or first range. Let's do it. In order to prevent the vehicle from starting at the same time as the starting, the engine is only allowed to start when the vehicle is set in the parking range or neutral range, which is a non-driving range. and,
After starting the engine, the vehicle can be started by switching the select lever to a desired driving range.

However, in conventional vehicles equipped with automatic transmissions, while the engine is running, simply switching the select lever from the non-driving range to any other driving range does not require any other operation. The vehicle started to move off without having to do anything. In this case, since the engine speed is set low during normal idling,
Although the vehicle only starts at a slow speed, the engine speed is high immediately after the engine starts and while the automatic brake system is operating, so if you switch the select lever to the driving range without operating the brake system, the engine speed will be high. , there was a risk that the vehicle would start suddenly.

The present invention was developed by focusing on these conventional problems.In the transmission system of the select operation force from the select lever to the automatic transmission, the present invention is connected to the lower end of the select lever and is connected to the manual valve of the automatic transmission. a fixing device that prevents the interlocking member that is linked to the movement of the select lever from moving in a non-driving range by actuation of a solenoid provided below the vehicle from the center of rotation of the select lever, and a fixing device that is connected to the solenoid and connected to a brake device. The vehicle start control device is characterized in that it is equipped with a release command device that operates a solenoid only when the brake device is activated. The purpose of this invention is to prevent the vehicle from suddenly starting by making it possible to switch from the tral range to another driving range, thereby solving the above-mentioned conventional problems.

The present invention will be described below with reference to illustrated embodiments.

Reference numeral 11 denotes a select lever, which is pivotally supported by a pin 12 so as to be freely pivotable in the longitudinal direction of the vehicle, and allows a selector rod 13 connected to its lower end to move forward and backward. The selector lever 11 is rotated between the parking range P, reverse range R, neutral range N, drive range D, second range 2, and first range 1, and the selector rod 13 is rotated correspondingly. It is designed to advance and retreat. The selector rod 13 is connected to a manual valve of the automatic transmission, and by operating the manual valve, the automatic transmission is switched between the ranges.

To the selector rod 13, an engaging piece 14, which is a member that is used in this invention and is linked to the movement of the select lever 11, is fixed, and on the smooth surface 14a of the engaging piece 14, two recesses 14p and 14n are formed. death,
The protrusion device 15 is made to face this engagement piece 14. 2
The distance between the two recesses 14p and 14n is made to match the advancing and retreating distance of the selector rod 13 as the selector lever 11 rotates between the neutral range N and the parking range P.
, the select lever 11 is in the neutral range N.
The protrusion device 15 is arranged to directly face the recess 14n when the vehicle is in the parking range P, and the recess 14p when the vehicle is in the parking range P.

The protruding device 15 is fixed to the vehicle body 16, and
Casing 15a and internal solenoid 15b
The spool 15d is composed of a spring 15c and a spool 15d projected by the spring 15c, and when the solenoid 15b is energized, the spool 15d is drawn into the casing 15a against the bias of the spring 15c, and when the energization is removed, the spring 1
The spool 15d is attached to the casing 15 by the urging force of 5c.
It is configured to protrude from a.

When the spool 15d of the protrusion device 15 protrudes, it engages with either of the recesses 14p, 14n of the engagement piece 14, thereby fixing the selector rod 13. Thus, the recesses 14p, 14
A fixing device 17 is constituted by an engaging piece 14 having a spool 15 and a protruding device 15 having a spool 15d.

18 is a brake pedal constituting the brake device of the present invention, and a brake lamp switch 1 is attached to this.
9 is coming. The brake lamp switch 19 closes when the brake pedal 18 is depressed and opens when the brake pedal 18 is released, and is provided with a normally open relay 21 between it and a battery 20 connected thereto. Relay 21 is battery 20
and the solenoid 15b of the ejecting device 15. When the brake lamp switch 19 is closed, its contacts are closed, and when the contacts of this relay 21 are closed, the solenoid 15b is connected to the solenoid 15b.
However, the spool 15d is energized and retracted, thereby operating the fixing device 17 to the fixing release side. Thus, the brake lamp switch 19, the battery 20, and the relay 21 operate the release command device 22.
Configure.

Next, the action will be explained.

When the brake pedal 18 is not depressed, the brake lamp switch 19 is open, and as shown in FIG. 1, the relay 21 is also open, so the solenoid 15b does not energize the spool 15d.
Therefore, the spool 15d is connected to the spring 15.
It protrudes from the casing 15a due to the bias of c. At this time, when the select lever 11 is in the parking range P or neutral range N,
When the engine is started, even if the select lever 11 is operated without depressing the brake pedal 18, the spool 15d will not move into the recess 1 of the engagement piece 14.
4p or 14n, the select lever 11 does not move. Therefore, even if the engine is rotating at high speeds such as when the autochoke is operating, there is no risk of the vehicle starting.

Further, when the brake pedal 18 is depressed, the brake lamp switch 19 closes and the brake lamp lights up, while the relay 21 is closed and the solenoid 15b is operated using the battery 20 as a power source, thereby exciting the spool 15d. The spool 15d is pulled in against the bias of the spring 15c. As a result, the spool 15d is separated from either of the recesses 14p, 14n and the fixing device 1
Unfix 7. Therefore, the select lever 11 can be rotated to a predetermined position in order to switch the transmission to an arbitrary range. At this time, even if the engine is rotating at high speeds, such as when the automatic brake yoke is operating, the brake pedal 18 is being depressed, so the brake device is operating and it is possible to prevent the vehicle from starting suddenly.

Note that even when the brake pedal 18 is released, if the select lever 11 is turned from the neutral range N or parking range P to another driving range R, D, 2, 1, the brake pedal 18 is released. , the spool 1 is biased by the spring 15c and protrudes.
5d hits the smooth surface 14a of the engagement piece 14, and only slippage occurs between the smooth surface 14a and the tip of the spool 15d, so the select lever 11 can be rotated to another range. Therefore, it is possible to switch from reverse range R to parking range P or neutral range N if the vehicle speed and other conditions permit, and it is also possible to switch between drive range D, second range 2, and first range 1. It is also possible to switch from the drive range D to the neutral range N.

Although the brake pedal 18 of a service brake is used as the brake device of the present invention in this embodiment, a parking brake device can also be used instead. Further, in this embodiment, the recesses 14p and 14n forming the fixing device 17 are
is provided in the engaging piece 14 that is integrated with the selector rod 13. However, in an automatic transmission that uses a cable instead of the selector rod 13, this recess 14 is provided in a device such as a rotary lever connected to the cable.
A configuration corresponding to p, 14n can also be provided.

As is clear from the above, according to the present invention, when switching the select lever from the non-driving range in which the engine can be started to the driving range, the brake system must be operated, so the engine does not reach high speeds as when the autochoke is operating. Even when the vehicle is rotating, it is necessary to switch the select lever while the brake device is in the operating state, so it is possible to prevent the vehicle from suddenly starting immediately after switching.

Further, according to the present invention, the interlocking member is located below the floor panel in general vehicles, and the solenoid of the fixing device is also located below the center of rotation of the select lever, which is normally supported by the floor panel. By installing the solenoid, it is possible to prevent collision noise generated when a member such as a spool provided inside the solenoid moves back and forth due to the operation of the solenoid from being transmitted into the vehicle interior. In particular, without using sound-absorbing materials or shock-absorbing materials, the sound of a collision when a solenoid spool or the like protrudes and collides with the interlocking member, for example, no longer echoes inside the vehicle interior. Also, there is a lot of freedom in setting the size and layout of the fixing device on the underside of the floor panel.
Even when the moving force of the interlocking member increases based on the lever ratio of the select lever, the rigidity of the fixing device can be easily improved, so that the fixing device reliably prevents movement of the interlocking member in the non-traveling range. be able to.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing one embodiment of the present invention, FIG. 2 is an enlarged sectional view of the ejecting device of FIG. 1, and FIG. 3 is an explanatory diagram showing a state in which the brake device is in operation. N...neutral range, P...parking range, 11...select lever, 13...selector rod, 14...engaging piece, 14p, 14n
... recess, 15 ... protrusion device, 15b ... solenoid, 15c ... spring, 15d ... spool, 17 ... fixing device, 18 ... brake pedal (brake device), 19 ... brake lamp switch, 20 ... ...Battery, 21...Relay, 22...
...Release command device.

Claims (1)

[Scope of utility model registration request] In the transmission system of the select operating force from the select lever to the automatic transmission, the interlocking member that is connected to the lower end of the select lever and reaches the manual valve of the automatic transmission, and that is linked to the movement of the select lever, is moved from the center of rotation of the select lever. A fixing device that makes the vehicle immobile in a non-driving range by actuation of a solenoid provided below the vehicle, and a release command device connected to the solenoid and interlocked with a brake device to actuate the solenoid only when the brake device is actuated. A vehicle start control device characterized by: