WO2014098078A1

WO2014098078A1 - Vehicle

Info

Publication number: WO2014098078A1
Application number: PCT/JP2013/083745
Authority: WO
Inventors: 健一小園
Original assignee: いすゞ自動車株式会社
Priority date: 2012-12-20
Filing date: 2013-12-17
Publication date: 2014-06-26
Also published as: JP2014121907A

Abstract

In the event of frontal collision with a pedestrian, the pedestrian is caught by a platform to protect the pedestrian. A vehicle (10) is provided with: a platform (11) that is disposed in front of a cab (16) and that can be rotated from an upright state to a vehicle-forwardly folded state; a pedestrian sensing system (12) that conducts prediction of frontal collision with a pedestrian; and a platform drive mechanism (13) that holds the platform (11) in the upright state and that, when frontal collision with the pedestrian is predicted by the pedestrian sensing system (12), folds the platform (11) from the upright state to the front of the vehicle so as to carry the pedestrian on the platform (11).

Description

vehicle

The present invention relates to a vehicle.

In recent years, various pedestrian protection devices and vehicle front structures have been proposed that reduce damage to pedestrians during frontal collisions between vehicles and pedestrians (see, for example, Patent Document 1). The pedestrian protection device disclosed in Patent Literature 1 includes a pedestrian protection panel that is rotatably attached to a front surface of a vehicle with the vehicle width direction as an axis, and a rotating unit that rotates the pedestrian protection panel.

JP 2010-202055 A

The pedestrian protection device as disclosed in Patent Document 1 controls the posture in which the pedestrian falls to the road surface after a frontal collision between the vehicle and the pedestrian, in particular, in order to reduce damage to the pedestrian's head. Therefore, there is a problem that a configuration for preventing a pedestrian who has fallen on the road from getting under the vehicle needs to be set separately.

If the pedestrian can be caught by the vehicle at the time of a frontal collision with the pedestrian, the above-described problems can be overcome.

Therefore, an object of the present invention is to provide a vehicle capable of protecting a pedestrian by removing the pedestrian by the platform and catching the pedestrian on the platform at the time of a frontal collision with the pedestrian. There is to do.

In order to achieve the above-described object, the vehicle according to the present invention predicts a frontal collision between a pedestrian and a platform that is provided at the front of the cab and is rotatable from a standing state to a state where the vehicle falls forward. A pedestrian detection system and the platform are held in an upright state, and when the front collision with the pedestrian is predicted by the pedestrian detection system, the platform is moved from the upright state to place the pedestrian on the platform. And a platform drive mechanism that tilts forward of the vehicle.

The vehicle may further include a cushioning material disposed on the cab so as to be positioned behind the platform held in an upright state.

When the front collision with the pedestrian is predicted by the pedestrian detection system, the vehicle drive unit may further include an automatic braking system that performs automatic braking.

The platform is detachably provided at a front portion of the cab, and includes a front panel portion constituting at least a part of a front panel of the cab, and a reinforcing member attached to a back surface of the front panel portion. May be.

ADVANTAGE OF THE INVENTION According to this invention, at the time of front collision with a pedestrian, there exists an outstanding effect that a pedestrian can be aimed at by removing a pedestrian with a platform and catching a pedestrian on a platform. .

(A) is a side view of the vehicle which concerns on one Embodiment of this invention, (b) is a top view. (A) is the A section enlarged view of FIG. 1, (b) is the B section enlarged view of FIG. It is a figure which shows an example of the operation logic of a platform.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In this embodiment, the present invention is applied to a cab-over type vehicle.

As shown in FIG. 1, a vehicle 10 according to the present embodiment includes a platform (active platform) 11, a pedestrian detection system 12, a platform drive mechanism 13, an automatic braking system 14, and a cushioning material 15. Prepare. In FIG. 1, an arrow FR indicates the front of the vehicle.

The platform 11 is provided on the front part of the cab 16 and is a table on which a pedestrian can be removed and a waist can be placed. In order to catch the pedestrian by the platform 11 and catch the pedestrian on the platform 11, the platform 11 has a height position (height from the road surface to the top surface of the platform 11) H. The height (for example, 400 mm) is located below the knee of an adult pedestrian. In order to place a pedestrian (adult pedestrian) on the platform 11, it is desirable that the length L of the platform 11 in the vehicle front-rear direction is as long as possible (for example, about 300 to 600 mm).

The platform 11 of the present embodiment is detachably provided at the front portion of the cab 16, and includes a front panel portion 19 constituting a portion (front cab panel portion 18) above the radiator grill portion 17 of the front panel of the cab 16. And a reinforcing member 20 attached to the back side of the front panel portion 19. Further, in order to store the platform 11 in the front portion of the cab 16, the platform 11 is provided with a light portion relief 21 so as not to interfere with the light portion of the cab 16.

The pedestrian detection system 12 predicts a frontal collision between the vehicle 10 and a pedestrian. For example, a known pre-crash safety system (PCS) can be used as the pedestrian detection system 12. The pedestrian detection system 12 of the present embodiment is a pedestrian detection system that recognizes (detects) a pedestrian from an in-vehicle camera (for example, a monocular camera or a stereo camera) 22 mounted on a cab 16 and an image captured by the in-vehicle camera 22. Part 23. The pedestrian detection unit 23 is provided in an electronic control unit (hereinafter referred to as ECU) 24. When the pedestrian detection unit 23 collides with a pedestrian for a predetermined time or more (for example, about 1 second before) or the distance to the pedestrian is a predetermined distance or more (for example, 5 m before the vehicle speed is 20 km / h). In addition, the vehicle 10 and the pedestrian are predicted to collide with each other.

The platform drive mechanism 13 holds the platform 11 in the upright state, and when the front collision between the vehicle 10 and the pedestrian is predicted by the pedestrian detection system 12, the platform drive mechanism 13 moves forward from the state in which the platform 11 is upright. To defeat. The platform drive mechanism 13 shortens the operation time of the platform 11 (the time from when the pedestrian detection system 12 predicts a frontal collision between the vehicle 10 and the pedestrian until the platform 11 completely falls forward of the vehicle) as short as possible (for example, 1 second or less) is desirable.

The platform drive mechanism 13 of this embodiment is provided on the cab 16 side, a bracket 25 serving as a rotation fulcrum of the platform 11, and an arm having one end rotatably attached to the bracket 25 and the other end fixed to the platform 11. 26, a lock mechanism (hereinafter referred to as an upper lock mechanism) 27 that holds the platform 11 in an upright state, and the platform 11 is unlocked by the upper lock mechanism 27, and the platform 11 is lifted from the front of the vehicle. And a lock mechanism (hereinafter referred to as a lower lock mechanism) 29 after the platform 11 is tilted forward of the vehicle.

The upper locking mechanism 27 (see FIG. 2A) of the present embodiment is composed of a roller catch 30 that is generally used as a door catch. The roller catch 30 includes a roller catch main body 31 attached to the cab 16 side and a strike (convex insertion portion) 32 attached to the platform 11 side. In addition, it can replace with a roller catch and other door catches, such as a duracon catch, a ball catch, and a magnet catch, can also be used for the upper side lock mechanism 27. FIG.

The lock release mechanism 28 of this embodiment (see FIGS. 1A and 2A) includes a link member 33 connected to the roller catch 30 (the arm 31a of the roller catch body 31), and a platform formed by the roller catch 30. 11, an electromagnet 34 that moves the link member 33 to release the lock 11, a spring (spring part) 35 that urges the platform 11 forward of the vehicle to tilt the platform 11 forward of the vehicle, and the vehicle 10 by the pedestrian detection system 12. And a platform operation unit 36 that outputs an ON signal (operation signal) to the electromagnet 34 when a frontal collision with a pedestrian is predicted. The platform operating unit 36 is provided in the ECU 24.

The lower lock mechanism 29 (refer to FIG. 2B) of the present embodiment includes a duracon catch 37 that is generally used as a door catch. The duracon catch 37 includes a plastic duracon catch main body 38 attached to the cab 16 side and a plastic strike (convex insertion portion) 39 attached to the platform 11 side. Instead of the Duracon catch, other door catches such as a roller catch, a ball catch and a magnet catch can be used for the lower lock mechanism 29.

The automatic braking system 14 performs automatic braking on the drive unit of the vehicle 10 when a frontal collision between the vehicle 10 and the pedestrian is predicted by the pedestrian detection system 12. For example, a known pre-crash safety system (PCS) can be used as the automatic braking system 14. The automatic braking system 14 includes an automatic brake 40 that applies a braking force to the drive unit of the vehicle 10, and a front collision between the vehicle 10 and the pedestrian that is predicted by the pedestrian detection system 12. And an automatic brake actuating part 41 that outputs an ON signal (actuation signal). The automatic brake operation unit 41 is provided in the ECU 24.

In this embodiment, the pedestrian detection unit 23, the platform operation unit 36, and the automatic brake operation unit 41 are provided in the ECU 24. However, it is needless to say that the pedestrian detection unit 23, the platform operation unit 36, and the automatic brake operation unit 41 may be provided in hardware separate from the ECU 24. .

The cushioning material 15 is disposed at the front of the cab 16 so as to be positioned behind the platform 11 held in an upright state. The cushioning material 15 is provided at the front portion of the cab 16 in order to reduce an impact that the pedestrian can receive from the front portion of the cab 16 when the pedestrian is caught on the platform 11. The buffer material 15 is made of, for example, a low-resilience urethane material.

Next, the operation logic of the platform 11 will be described with reference to FIG.

(1) Pedestrian detection A pedestrian 5 m or more ahead is recognized by the in-vehicle camera 22. When the collision with the pedestrian is within a predetermined time or the distance from the pedestrian is equal to or less than the predetermined distance, the pedestrian detection system 12 predicts that the vehicle 10 and the pedestrian collide in front.

(2) Tilt the platform forward and automatic brake operation When the pedestrian detection system 12 predicts that the vehicle 10 and the pedestrian will collide in front, the electromagnet is intended to tilt the platform 11 from the standing position to the front of the vehicle. An ON signal is output to 34 and an ON signal is output to the automatic brake 40 to operate the automatic brake 40.

(3) The pedestrian is caught on the platform. The pedestrian is removed by the platform 11, so that the upper body of the pedestrian faces toward the cab 16 (the rear of the vehicle) and the lower body of the pedestrian faces the front of the vehicle. The pedestrian is brought down and the pedestrian is placed on the platform 11.

(4) Return the platform to the initial state (store)
After the vehicle 10 stops, the platform 11 is returned to the initial state by the driver of the vehicle 10 or the like. To return the platform 11 to the initial state, the lock release mechanism 28 is reset, and the platform 11 is pushed up until the platform 11 is locked by the upper lock mechanism 27.

According to the vehicle 10 according to the present embodiment configured as described above, when a frontal collision with a pedestrian occurs, the platform 11 removes the pedestrian and catches the pedestrian on the platform 11. Protection can be achieved.

The preferred embodiments of the present invention have been described above, but the present invention is not limited to the above-described embodiments, and various other embodiments can be adopted.

DESCRIPTION OF SYMBOLS 10 Vehicle 11 Platform 12 Pedestrian detection system 13 Platform drive mechanism 14 Automatic braking system 15 Buffer material 16 Cab 19 Front panel part 20 Reinforcement material

Claims

A platform provided at the front of the cab and rotatable from a standing state to a state of falling forward of the vehicle;
A pedestrian detection system that predicts a frontal collision with a pedestrian,
A platform drive that holds the platform in an upright state and, when a frontal collision with a pedestrian is predicted by the pedestrian detection system, tilts the platform from the upright state to the front of the vehicle to place the pedestrian on the platform A vehicle comprising a mechanism.
The vehicle according to claim 1, further comprising a cushioning material disposed on the cab so as to be positioned behind the platform held in an upright state.
The vehicle according to claim 1, further comprising an automatic braking system that performs automatic braking on a vehicle drive unit when a frontal collision with a pedestrian is predicted by the pedestrian detection system.
The platform is
A front panel portion detachably provided at a front portion of the cab, and constituting at least a part of a front panel of the cab;
The vehicle according to any one of claims 1 to 3, further comprising a reinforcing member attached to a back surface of the front panel portion.