JPS62173342A - Stop retention device of automobile - Google Patents

Abstract

PURPOSE:To improve safety during a downhill start in a reverse gear by preventing sudden start due to instantaneous release of a brake by bringing a brake pedal retention mechanism into inoperative condition when a detection means detects reversing motion even when the operating condition of the retention mechanism is being changed over. CONSTITUTION:A ratchet 4a of an engagement member 4 is made to engage with a ratchet 2g via a cable 8 by depressing a clutch pedal 1 and a brake pedal 2 respectively in directions of A and B and by making a changeover lever 11 in operative condition (a). With this constitution, the brake pedal 2 is instantaneously released when the brake pedal is brought to a depressed condition and a foot is removed, and the clutch pedal is returned by a specified travel while an accelerator pedal is being operated. In order to avoid this instantaneous release in a downhill start in a reverse gear, the changeover lever 11 is forcibly returned to an inoperative position (b) by actuating a solenoid 13 by turning both a reverse switch 15 corresponding to the reverse position of a transmission and an inclination switch on. And the sudden start can be prevented by operating the pedals ordinarily.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an automobile stop-holding device for holding a brake pedal in its depressed position.

(Prior art) Generally, when starting a car from a stopped state, first depress the clutch pedal with your left foot to disengage the clutch.
In this state, after shifting the transmission from the neutral position to the driving position, the clutch pedal is gradually released and the clutch is engaged while pressing the accelerator pedal with the right foot.However, when starting on a slope, In addition to such operations, it is necessary to operate the brake pedal. In other words, in order to prevent the car from moving due to its own weight while the clutch pedal is being depressed, the brake pedal is first depressed with the right foot, and after shifting the transmission in this state, the clutch pedal is gradually released while By moving your right foot from the brake pedal to the accelerator pedal, you release the brake and at the same time reduce the engine output to the level required for starting. However, when starting on a slope like this, especially for beginners, it is difficult to engage the clutch with the left foot and release the brake or press the accelerator pedal with the right foot in a timely manner. Problems such as engine stalling due to a relatively early operation and movement of the vehicle due to its own weight due to a relatively early brake release operation are likely to occur.

Regarding the above-mentioned problems regarding starting a car on a slope, for example, the applicant's prior utility model registration application
9-107030) is a stop-holding device for an automobile. This is activated via a cable when the clutch pedal is depressed to hold the brake pedal in that depressed position, and when the clutch pedal is returned by a predetermined stroke from the depressed position, the holding state of the brake pedal is released. In the above-mentioned application, a mechanism (stroke holding mechanism in the above-mentioned application) is provided, and in particular, in the above-mentioned application, a switching means for activating and inactivating this holding mechanism is provided, and the driver is configured to be able to make a selection. According to such a stop holding device, when starting on a slope, if the pedal position holding iMA is activated with the brake pedal and clutch pedal depressed,
Even if you take your foot off the brake pedal, the brake pedal remains in the depressed position, so you can return the clutch pedal with your left foot and press the accelerator pedal with your right foot, and you can also press the clutch pedal to the specified position. When the stroke is returned, the brake is automatically released and the car starts smoothly by pressing the accelerator pedal, making it easy for even beginners to start on a slope.

However, according to this stop-holding device, the following problems may occur when the vehicle starts in reverse from a stopped state on the Ω slope (when starting from the vehicle in reverse). In other words, when starting off in reverse, the pedal position holding mechanism is not activated by the operation switching means, the clutch pedal is returned, and the accelerator pedal is depressed, and the clutch pedal is returned to the predetermined stroke. Since the brake is released instantaneously, the fact that the accelerator pedal is depressed and the vehicle is starting in the direction of exiting the vehicle causes the vehicle to suddenly start at an unexpected speed.

According to Japanese Unexamined Patent Publication No. 51-43526, saw teeth are provided on the head of the brake pedal, and a ratchet piece that engages with the saw teeth is controlled by a solenoid to hold the brake pedal in the depressed position. This device is used in an automatic vehicle that does not have a clutch pedal, and is used to hold and release the brake pedal (1) in connection with the operation of the clutch pedal, which is the object of the present invention. It is a book whose purpose is different from that of the original.

(Object of the Invention) The present invention addresses the above-mentioned actual situation regarding a stop-holding device for an automobile. A pedal position holding mechanism for releasing the hold on the brake pedal, and an operation switching means for switching between activation and non-operation of the mechanism, wherein the pedal position holding mechanism is activated by the operation switching means. The purpose of this system is to prevent a situation where the vehicle unexpectedly suddenly starts when the vehicle is exited and started while reversing.

(Structure of the Invention) That is, the stop-holding device for a motor vehicle according to the present invention is a vehicle equipped with a brake pedal that applies braking force to a wheel by pedal force, and a clutch pedal that disengages a clutch by pedal force. a pedal position holding mechanism that is linked to the pedal and holds the brake pedal in the depressed position when the clutch pedal is depressed, and releases the state of holding the brake pedal when the clutch pedal is returned from the depressed position; The position holding mechanism is provided with an operation switching means for switching the position holding mechanism between r and non-operation, and further includes a reversing detection means for detecting the reversing of the automobile;
1l that receives the output signal of the detection means and controls the pedal position holding mechanism to be in a non-operating state when the vehicle is moving backward;
llll iii means. The reversing detection means is constituted by, for example, a shift position detection switch that detects that the first gear is shifted to the reversing position, and when the reversing detecting means detects that the automobile is moving backward, the control means operates. Therefore, even if the operation switching means is operated to the operation side, the pedal position holding mechanism is not activated. Therefore, when reversing the vehicle, the vehicle is started using the normal operation, that is, adjusting the release state of the brake or the state of depression of the accelerator pedal depending on the road surface gradient, etc. In addition to the reverse detection means, a detection means for detecting that the vehicle is in a backward down position may be provided in order to operate the control means only when the vehicle is started in reverse.

(Effects of the Invention) As described above, according to the present invention, when the clutch pedal is depressed, the brake pedal is held in the depressed position, and when the clutch pedal is released, the state in which the brake pedal is held in the depressed position is released. In an automobile stop holding device that includes a pedal position holding mechanism that operates, and an operation switching means that switches between activation and non-operation of the mechanism, even when the pedal position holding means is activated by the switching means, the pedal position holding mechanism is activated when reversing. Since this mechanism is inactive when the board is disembarked and started,
This prevents the vehicle from suddenly starting unexpectedly due to the brake being momentarily released while the accelerator pedal is being depressed while the clutch pedal is being released. As a result, the safety of a vehicle equipped with this type of stop-holding device is improved when the vehicle is dismounted and started when reversing.

(Example) Examples of the present invention will be described below.

FIG. 1 shows a pedal operating section below the driver's seat of an automobile, and in this operating section, from the left side, a clutch pedal 1, a brake pedal 2, and an accelerator pedal (not shown) are arranged. These pedals 1.2 each have main bodies 1b and 2b whose upper ends are supported by support shafts 1a and 2a.
and a tread IC fixed to the lower ends of the main bodies 1b and 2b,
2C, and both pedals 1 and 2 are stopped by return springs ld and 2d.

2e is held in the non-depressed position shown in the figure.

Then, when the clutch pedal 1 is depressed in six directions, the main body 1
When the clutch cable 1r engaged with the upper end of a is pulled in the direction A', the clutch interposed between the engine and the transmission is disconnected, and when the brake pedal 2 is depressed in the direction B, When the brush Colorado 2f is pushed in the B' force direction, brake fluid pressure is generated in the mask cylinder, and this is supplied to the brake devices of each wheel to provide braking force.

At the lower end of the main body 2b of the brake pedal 2, a serrated ratchet ridge 2g forming a pedal position holding gate mechanism is formed, and above the southern part 2g, one end is fixed by a pin 3. (not shown), and the other end is a ratchet 1 to pawl 4a, and when the brake pedal 2 is depressed in the direction B, the engagement member 4 is moved in the direction C. The above southern part 2 when shaken
The claw portion 4a engages with the brake pedal 9 to hold the brake pedal 2 in the depressed position. Here, the engaging member 4
is urged in the counter-C direction by the return spring 5, and is normally held in a position where the claw portion 4a does not engage with the tooth portion 2g.

On the other hand, a long hole 1g is provided between the engagement position of the clutch cable 1 at the upper end of the main body 1b and the support shaft 1a. 6 is inserted. The pin 6 is connected to one end of a first cable 8 via a first connecting member 7, and the other end of the cable 8 is connected to the engaging member 4. Member 7 and first cable 8
moves in the C direction, the engaging member 4 moves 1! in the C direction against the return spring 5. It is designed to be moved.

Further, a second connecting member 9 that shares the engagement pin 6 with the first connecting member 7 is connected to the upper end of the body of the clutch pedal 1, and a second connecting member 9 whose one end is fixed to the connecting member 9 is connected to the upper end of the main body of the clutch pedal 1. The other end of the cable 10 is connected to one end of a switching lever 11 that is separately leaked to a driver's seat or the like. This switching lever 1
1 is movably supported by an appropriate support member via a pin 12 at its center, and has an end opposite to the connecting portion of the second cable 10 as an operating portion 11a. When the lever 11 is operated in the E direction from the non-operating position (A) shown by the solid line to the operating position (B) shown by the chain line, the second
The cable 10, the second connecting member 9 or the engagement pin 6 are pushed in the F direction (D direction).

A rod 13a of a solenoid 13 is connected to this switching lever 11, and when the solenoid 13 is energized with the lever 11 in the operating position (B), the rod 13a moves in the C direction and the switching lever 11 is designed to swing to the non-operating position (A). An electric circuit 14 is provided to control the energization of the solenoid 13, and this circuit 14 includes a reverse switch 15 which is turned on when the transmission is shifted to the reverse position.
is connected, and when the switch 15 is turned on, the coil 16a of the relay 16 is excited and the contact 16b is closed, so that the solenoid 13 is energized from the power source 17.

Next, the operation of the above embodiment will be explained.

First, from a state where both the clutch pedal 1 and the brake pedal 2 are in the non-depressed position, as shown by the solid line in FIG.
When starting the vehicle on a slope, it is assumed that these pedals 1 and 2 are depressed with the left and right feet in directions A and 8, and in this state, the parking brake is released and the gearbox is shifted from the neutral position to the running position. At this time, at the upper end of the clutch pedal 1, the long hole 1g moves from the position shown by the solid line to the position shown by the chain line, as shown in FIG.
Since the second cable 10 connected via the second connecting member 9 does not move, the engaging pin 6 inserted into the slot 1g is held at the initial position, and as a result, the engaging pin 6 is inserted into the rear end of the elongated hole 1g. The state changes from being located at the front end to being located at the front end. next,
In this state, the switching lever 11 is moved to the non-operating position (
When the operation is performed from a) to the operating position (b), the second cable 10 is pushed in the F direction, so the engagement pin 6 is also moved in the same direction via the second cable 10, and as a result, the third
As shown in the figure, the bin 6 is positioned near the rear end of the elongated hole 1q. At this time, since the first cable 8 whose one end is connected to the engagement bin 6 via the first connection member 7 is pushed in the D direction, the engagement member 4 connected to the other end of the cable is pushed in the C direction. As a result, the ratchet pawl portion 4a at the tip of the member engages with the ratchet tooth portion 2g at the upper end of the main body of the brake pedal 2 which is being depressed in eight directions. As a result, even when the brake pedal 2 is released, the pedal 2 is held in the depressed position shown by the solid line in FIG. 3 against the return spring 2d.
Therefore, even if the right foot is moved from the brake pedal 2 to the accelerator pedal, the automobile will not move on its own, and in this state, by gradually releasing the clutch pedal 1 and depressing the accelerator pedal, the automobile will be ready to start. Then, when the clutch pedal 1 is returned in the opposite direction to a predetermined stroke, the engagement pin 6 comes into contact with the rear end of the elongated hole 1g. ,
1, the first cable 8 is pulled in the opposite direction, and as a result,
The engaging member 4 is swung in the counter-C direction and the ratchet claw portion 4a
The engagement between the ratchet teeth 29 and the ratchet teeth 29 is released. As a result, the brake pedal 2 is released from being held at the depressed position, and the return spring 2d
The pedal is returned to the non-depressing position shown by the solid line in the figure, and the car is started.

However, when performing the above-mentioned slope start conversion when reversing and starting off the vehicle, the brake pedal 2 is held in the depressed position by operating the switching lever 11 to the operating side, and the clutch pedal is held in the depressed position. If you press the accelerator pedal while gradually returning clutch pedal 1,
When the brake pedal 2 is returned to the specified stroke
Since the hold on the vehicle is released instantaneously, the problem arises that the vehicle starts suddenly. However, according to the above-mentioned Mizonari, when the transmission is moved to the reverse position and shifted to shift 1 when the vehicle is started in reverse, the reverse switch 15 in the electric circuit 14 is turned on, and the solenoid 13 is energized via the relay 16. Therefore, even if the switching lever 11 is in the operating position (B), it is forcibly returned to the non-operating position (A). Therefore, in this case, operate the switching lever to the operating position (B) while depressing the clutch pedal 1 and the brake pedal 2 to release the ratchet l-l of the brake pedal 2.
Even if the m portion 2g and the pawl portion 4a of the engaging member 4 are engaged, the engagement between the tooth portion 2g and the pawl portion 4a, i.e., the depression of the brake pedal 2, occurs when the gearshift rock is shifted to the reverse position. The hold at the position will be released. This results in
Through normal operation, the vehicle is gradually started while adjusting the release state of the brake and the depression state of the accelerator pedal depending on the road surface slope, etc., and the unexpected sudden start described above is prevented.

In the above embodiment, when the brake pedal 2 is held in the depressed position by the switching lever 11 when starting in reverse, the brake pedal 2 is held even when starting on a zero slope where the car will not suddenly start. It will be canceled. Therefore, the electric circuit 14 may be configured as shown in FIG. 4 so that the holding is released only when the vehicle is dismounted and started in reverse.

That is, in the second embodiment shown in FIG. 4, a tilt switch 18' is provided in series with a reverse switch 15' in an electric circuit 14' for controlling energization of a solenoid 13'. This tilt switch 18' is provided with a pair of terminals 20 and 20' at the rear end of a glass tube 19' whose central portion is curved downward, as shown in FIG. The IP conductive fluid 21' is sealed so that when the glass tube 19' is tilted backwards and downwards with the vehicle, electrical continuity is established between the terminals 20' and 20' through the conductive fluid 21'. It has become. Therefore,
According to this embodiment, the solenoid 13' is energized only when the vehicle is in a backward down position and the transmission gear is shifted to the reverse position, that is, when the vehicle is dismounted and started in reverse. In this case, the switching lever 11, which had been operated in the operating position (b), is returned to the non-operating position (a), and the operation of holding the brake pedal in the depressed position is released.

Further, in the above embodiment, the pedal position holding mechanism is mechanical, but the pedal position holding mechanism may be configured using hydraulic pressure.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention. Fig. 1 is a system diagram of the stop-holding device showing the clutch pedal, the brake pedal, and the mechanical structure around them together with the electric circuit, and Figs. 2 and 3 show the operating state thereof. FIG. 4 is a circuit diagram showing a second embodiment of the electric circuit, and FIG. 5 is a schematic diagram showing an example of a tilt switch used in the second embodiment. 1...Clutch pedal, 2...Brake pedal, 2
g, 4.4a...Pedal position holding mechanism (Radiets 1~
southern part, engaging member, ratchet pawl), 8... connecting member (first cable), 10.11... operation switching means (second cable, switching lever), 13.13', 14.1
4' ... Control means (solenoid, electric circuit), 15
．． 15'... Backward detection means (reverse switch). Figure 4 Figure 5 18"21" 20

Claims (1)

[Claims] (1) A stop-holding device for an automobile having a brake pedal that applies braking force to the wheels by the pedal force, and a clutch pedal that disengages the clutch by the pedal force, which holds the brake pedal in the depressed position when the clutch pedal is depressed. and a pedal position holding mechanism that releases the brake pedal from being held in the depressed position when the clutch pedal is returned from the depressed position, an operation switching means that switches between activation and non-operation of the pedal position holding mechanism, and a vehicle reversing mechanism. and a control means that receives an output signal from the detection means and controls the pedal position holding mechanism to be in a non-operating state when the vehicle is moving backward. holding device.