JPH0736859Y2 - Auxiliary braking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a foot brake of an automobile.

[Conventional technology]

Conventionally, the delay in actuation of this type of brake has been studied, but an effective method for a vehicle mechanism is not well known.

By the way, the brake operation delay is roughly classified into a reaction time, a stepping time, and a time when the braking force reaches an effective value.
It is almost impossible to reduce this reaction time by the mechanism of the vehicle, and regarding the stepping time, the method of simultaneously operating the brake pedal and the accelerator pedal with the right foot by the toe-and-hill method or the left foot in an AT (automatic transmission) vehicle It is known that the brake pedal is operated and the accelerator pedal is operated with the right foot so as to avoid stepping. With regard to the rising time of the braking force, some measures are taken such that the pedaling force for operating the brake pedal is set to an appropriate value.

[Problems to be solved by the device]

However, the above-mentioned toe-and-hill is generally difficult to use due to its high technology, and the brake operation by the left foot of an AT vehicle is difficult for an experienced MT (manual transmission) vehicle to use a clutch. There is a risk that you will suddenly step on the illusion and apply undesired sudden braking,
Generally not recommended.

In addition, if the speed of the brake input rises too fast, "the brake will be tight" and it will be dangerous to follow the feeling, so there is no choice but to set an appropriate value.

The present invention has been made under such circumstances, and an object thereof is to provide an "auxiliary brake device" that does not require high technology and can shorten the brake operation delay without risk. To do.

[Means for Solving the Problems]

In order to achieve the above object, the present invention provides an auxiliary brake pedal on the accelerator pedal in addition to the conventional brake pedal. More specifically, the auxiliary brake device is configured as shown in (1) below. is there.

(1) Depending on the relative position of the accelerator pedal and the auxiliary brake pedal, which is arranged on the accelerator pedal and is biased by a spring in a direction opposite to the direction in which the accelerator pedal is depressed. An auxiliary brake device comprising a switch that opens and closes, and an auxiliary brake actuator that is controlled according to opening and closing of the switch.

[Action]

With the configuration of (1), by removing the force of the right foot on the auxiliary brake pedal on the accelerator pedal, the switch operates, the auxiliary brake actuator is controlled, and the auxiliary brake operates immediately.

As a result, the brake pedal does not need to operate the accelerator pedal with the right foot at the same time, so advanced technology is not required, and the brake pedal is operated with the left foot and the accelerator pedal is operated with the right foot, or the rise of braking force is excessive. Since it is not necessary to speed up, there is no danger, and it is not necessary to step on the auxiliary brake pedal with the right foot, and there is no need to switch to the brake pedal, so the braking delay can be shortened.

〔Example〕

 Hereinafter, the present invention will be described in detail with reference to embodiments.

FIG. 1 is a side view of a main part of an "auxiliary brake device" which is an embodiment of the present invention, and FIG. 2 is a circuit diagram of the same embodiment.

In FIG. 1, 1 is an accelerator pedal, 2 is an accelerator pedal, and 2 is arranged on the accelerator pedal 1 and is always urged by a return spring (not shown) in the direction of arrow a opposite to the direction of depression of the accelerator pedal 1. Brake pedal, 3 is a micro switch, 4 is a link mechanism, and 5 is a rod connected to a throttle valve.

As shown in FIG. 2, the micro switch 3 includes a key switch 6, a dashboard switch 7, and a select lever contact 8 in the circuit from the power source to the auxiliary brake actuator.
Are connected in series.

Next, the operation will be described.

When the auxiliary brake pedal 2 is depressed, the accelerator pedal 1
Is depressed together with the auxiliary brake pedal 2, the link mechanism 4 moves in the direction of arrow b, the rod 5 moves in the direction of arrow c, the throttle valve (not shown) opens, and the engine output increases.

When the force to depress the auxiliary brake pedal 2 is released, the accelerator pedal 1 returns to the original position together with the auxiliary brake pedal 2, and the link mechanism 4 and the rod 5 move in the direction opposite to the directions of the arrows b and c. , Engine power will decrease.

If the force to depress the auxiliary brake pedal 2 is further relaxed,
The accelerator pedal 1 stops at the idling position, the auxiliary brake pedal 2 moves in the direction of arrow a separately from the accelerator pedal 1 by the return spring, and the micro switch 3 is pushed by one end of the accelerator pedal 1 to close its contact.

When the micro switch 3 is closed, the circuit shown in FIG. 2 is closed and current is supplied to the auxiliary brake actuator to start braking. If necessary, release the right foot from the auxiliary brake pedal 2 and switch to the original brake pedal (not shown) to perform a normal brake operation.

In this way, the brake operation delay due to the accelerator pedal-to-brake pedal depression time (about 0.2 seconds on average) can be reduced to almost zero.

As the auxiliary brake, the auxiliary brake actuator is operated to supply the constantly accumulated air pressure and hydraulic pressure to the auxiliary brake, or the auxiliary brake actuator drives the auxiliary electric brake. Can use an appropriate means such as supplying the hydraulic pressure that is always stored by the auxiliary brake actuator to the original hydraulic brake.

In the present embodiment, since the circuit is configured as shown in FIG. 2, it is possible to select the use or non-use of the auxiliary brake by turning the dashboard switch 7 on and off, and the select lever contact 8 allows the drive position of the AT vehicle to be changed. Only the auxiliary brake can be turned on, and the blinking of the brake lamp can be controlled by turning on / off the micro switch 3.

An example of the select lever contact 8 is shown in FIG. With the configuration shown in the figure, when the select lever is moved to the drive position D, the movable contact operating rod moves in the direction of d to close the contact. Fourth
The figure shows an example of contact points for MT vehicles. As shown in the figure, when the shift lever is put into the fourth speed position, the movable contact operating rod moves in the direction of e and the contacts are closed.

In the above embodiment, the movement of the auxiliary brake pedal 2 and the movement of the select lever are detected by opening and closing mechanical contacts, but the invention is not limited to this, and may be detected by a contactless switch such as a proximity switch. Needless to say.

[Effect of device]

As described above, according to the present invention, it is possible to reduce the brake operation delay due to pedal change to almost zero and to shorten the stopping distance of the vehicle without requiring high technology and without danger.

Further, in an AT vehicle, an undesired creep can be easily prevented by using an auxiliary braking device when stopped, and in an MT vehicle, an unintentional backward movement can be easily avoided by using an auxiliary braking device when starting on a slope.

[Brief description of drawings]

FIG. 1 is a side view of an essential part of an embodiment of the present invention, FIG. 2 is a circuit diagram of the same embodiment, FIG. 3 is a configuration diagram of a select lever contact, and FIG. 4 is a configuration diagram of a shift lever. 1 ... Accelerator pedal 2 ... Auxiliary brake pedal 3 ... Micro switch

Claims (1)

[Scope of utility model registration request] 1. An auxiliary brake pedal which is arranged on an accelerator pedal and is biased by a spring in a direction opposite to a direction in which the accelerator pedal is depressed, and a relative position between the accelerator pedal and the auxiliary brake pedal. An auxiliary brake device comprising: a switch that opens and closes in response to the switch; and an auxiliary brake actuator that is controlled according to the opening and closing of the switch.