JP3082806U - Neutral range false start prevention device for AT vehicles - Google Patents

Abstract

(57) [Problem] To provide an erroneous start prevention device for preventing erroneous start of an AT vehicle. SOLUTION: A neutral range detecting sensor 5 is arranged on a body 10 at a position facing a side surface of a change lever 1 in a neutral range N, and a stopper body 8 which protrudes and retracts directly below a detent pin 12 of the change lever in the neutral range is provided. is there. The circuit of the electromagnetic solenoid 7 for moving the stopper body from the retracted position to be located immediately below the detent pin is connected to the control unit 6, and the circuit 14 of the vehicle stop detection sensor 13 is connected to the control unit 6.
And the circuit 16 of the depression detection sensor 15 of the brake pedal 4
Are also connected to the control unit. When the change lever is in the neutral range at the vehicle stop position when the brake pedal is not depressed, the stopper body moves forward to a position to prevent displacement of the detent pin, and when the brake pedal is displaced to the depressed position at the same position, the stopper body retreats This is a position where the displacement of the detent pin is allowed.

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a neutral range erroneous start prevention device for preventing an AT (Automatic Transmission) vehicle from erroneously starting in a neutral range N against the driver's will.

[0002]

2. Description of the Related Art When driving an AT car, when starting an engine from a parking state and moving forward or backward, it is necessary to shift a change lever from a parking range P to a drive range D or a reverse range R. At that time, it is necessary to depress the brake pedal. This means that the AT car is equipped with a shift lock device, and the shift lever cannot be moved from the parking range P to any other range without stepping on the brake pedal to prevent jumping out. Because.

[0003] Therefore, even if the shift lever is put into the drive range D or the reverse range R with the accelerator pedal depressed by mistake, the gear cannot be changed due to the operation of the shift lock device.

[0004]

However, in this conventional shift lock device, when the shift lever is shifted from the neutral range N to the drive range D (or the reverse range R) during a temporary stop such as at a traffic light, the brake is not used. This can be done without stepping on the key pedal. Therefore, if the shift lever is moved from the neutral range N to the drive range D (or the reverse range R) with the foot on the accelerator pedal accidentally, the AT vehicle gradually starts moving forward (or backward). In this case, the driver may think that the brake pedal is insufficiently depressed and depress the accelerator pedal strongly. As a result, the AT car is mis-started and moves forward (or reverses), so there is a high risk of causing an accident.

It is an object of the present invention to provide a neutral range erroneous start prevention device capable of preventing such erroneous start of an AT car.

[0006]

A description will be given with reference to FIGS. 1 to 3. The device for preventing a false start of a neutral range AT vehicle according to the present invention includes a neutral range sensor 5 disposed on a body 10 at a position facing a side surface of a change lever 1 in a neutral range N, and a change lever 1 in the neutral range N. A stopper body 8 that protrudes and retracts directly below the detent pin 12 is provided, and the circuit of the electromagnetic solenoid 7 that moves the stopper body 8 from the retracted position to be located immediately below the detent pin 12 is connected to the control unit 6 and the vehicle stops. The circuit 14 of the detection sensor 13 and the circuit 16 of the depression detection sensor 15 of the brake pedal 4 are also connected to the control unit 6, and when the change lever 1 is in the neutral range N at the vehicle stop position when the brake pedal is not depressed, the stopper body is stopped. 8 moves forward and displaces the detent pin 12 When the brake pedal 4 is displaced to the depressed position in this position, the stopper body 8 is retracted to a position where the detent pin 12 is allowed to be displaced.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In a vehicle equipped with an automatic transmission, a range shift is performed by a linear reciprocating motion of a change lever 1, and a lower side of the change lever 1 has the same direction as the operation direction of the change lever. An indicator panel for displaying each shift range is mounted, and a stop means is provided so that each desired shift range position is fixed depending on the degree of operation of the driver.

In a general configuration of such a change lever device, the change lever 1 is installed so as to be rotatable at a predetermined angle using the lower hinge shaft 17 as a hinge. The shift is performed within the shift range of the vehicle.

That is, a shift is performed to the parking range P, the reverse range R, the neutral range N, the drive range D, the second range 2, and the low range L.

The change lever 1 is provided with a means for maintaining a selected position. The change lever 1 has a step-shaped locking projection 19 below the detent plate 18 on one side of the change lever 1. The detent pin 12 formed and attached to the change lever 1 via an upwardly biased spring (not shown) is hooked to maintain the current position of the changer lever 1.

The locking projection 19 has a cam surface. R → N → D → 2 and L → 2 → D → N move the detent pin 12 down by the cam surface just by moving the change lever 1. Over the gradual cam surface of the stop projection 19, P → R, 2 → L, N → R → P pushes the change lever button 20 to lower the detent pin 12 against the spring force to project the protrusion. It is made to exceed 19.

A neutral range sensing sensor 5 is arranged on the body 10 at a position facing the side of the change lever 1 in the neutral range N, and a stopper body 8 is provided which protrudes and disappears directly below the detent pin 12 of the change lever 1 in the neutral range N. Have been.

The circuit of the electromagnetic solenoid 7 for moving the stopper body 8 forward from the retracted position to be positioned immediately below the detent pin 12 is connected to the control unit 6, and the circuit 14 of the vehicle stop detection sensor 13 and the depression detection of the brake pedal 4 are detected. The circuit 16 of the sensor 15 is also connected to the control unit 6.

When the change lever 1 reaches the neutral range N when the vehicle is stopped when the brake pedal is not depressed, the stopper body 8 moves forward to prevent the detent pin 12 from being displaced (see FIG. 3). When the pedal 4 is displaced to the depressed position, the stopper body 8 retreats to a position where displacement of the detent pin 12 is allowed (see FIG. 2).

In this AT vehicle sudden start prevention mechanism, for example, when the vehicle is temporarily stopped at a red light, the change lever 1 is put into the neutral range N, and when starting at a green signal, the brake pedal 4 is pressed. Otherwise, the locked state of the detent pin 1 cannot be released, so that the change lever 1 cannot be moved to the drive range D. Therefore, it is not possible to move the change lever 1 to the drive range D with the accelerator pedal 4 depressed by mistake, which causes the AT car to start erroneously against the driver's intention and cause an accident. Can be prevented beforehand.

When the change lever 1 is moved from the drive range D to the reverse range R, the brake pedal 4 must be similarly depressed. Can be prevented.

[0017]

[Effect of the Invention] The automatic start prevention device for an AT car according to the present invention cannot move the change lever 1 from the neutral range N to the drive range D or the reverse range R unless the brake pedal 4 is depressed. It is possible to prevent a situation in which the vehicle accidentally starts and causes an accident against the intention of the driver.

[Brief description of the drawings]

FIG. 1 is a schematic configuration side view showing an embodiment of the present invention.

FIG. 2 is a ZZ view on a YY line of FIG. 1 in a detent pin locked state.

FIG. 3 is a cross-sectional view taken along a line Y- in FIG.
It is a ZZ view on the Y line.

[Explanation of symbols]

 Reference Signs List 1 change lever 4 brake pedal 6 control unit 7 electromagnetic solenoid 8 stopper body 10 body 12 detent pin 13 vehicle stop detection sensor 14 vehicle stop detection sensor circuit 15 brake depression sensor 16 brake depression sensor circuit 17 hinge shaft 18 detent plate 19 Stop projection 20 Change lever button

Claims (1)

[Utility model registration claims] 1. A neutral range sensing sensor (5) is arranged on a body (10) at a position facing a side surface of a change lever (1) in a neutral range (N), and a detent pin (12) of the change lever in a neutral range. A stopper body (8) that protrudes and retracts directly below the control unit (6) is connected to the control unit (6), and the circuit of the electromagnetic solenoid (7) that moves the stopper body (8) forward from the retracted position and is positioned immediately below the detent pin is connected. The circuit (14) of the vehicle stop detection sensor (13) and the circuit (16) of the depression detection sensor (15) of the brake pedal (4) are also connected to the control unit, and change at the vehicle stop position when the brake pedal is not depressed. When the lever is in the neutral range, the stopper body moves forward to prevent the detent pin from being displaced. In this case, when the brake pedal is displaced to the depressed position at the same position, the stopper body retreats to a position where the detent pin is allowed to be displaced to prevent a neutral range erroneous start of the AT vehicle.