RU2539428C1 - Car door drive - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to transport engineering. Car door drive comprises tactile sensory surface, control microcontroller and lock actuator. Tactile sensory surface is displaced relative to the car body by the first drive equipped with force and position sensor so that tactile force of contact with human body part is kept close to preset one depending on actual force at which car door is displaced by second drive. Second drive is provided with the force and position drive and designed to displace car doors so that tactile sensory surface is located within the range of its possible motions relative to car door.

EFFECT: improved ergonomics.

2 cl, 2 dwg

Description

Application area

The invention relates to the field of the automotive industry and can be used to open, close and other movements of car doors by a person, including a person with disabilities.

Also, the invention can be used to move other moving objects - carts, furniture drawers, etc.

Prior art

A device for moving a door of a Mercedes car is known, which makes it possible to close a car door with a light push of a hand, but to open a car door it is necessary to capture a car door handle.

A device for moving car doors is also known (see WO 0037755), which opens a car door to a predetermined angle.

Closest to the claimed invention is a device for moving car doors (Magic Toutch, www.lafranceautoworks.com, WO 2007011938 A2). The known device uses a tactile sensor in order to initialize the partial opening of the car doors. However, the known device requires a person to grab a car door or a car door handle to fully open. The device is not used to close car doors.

In the above devices, a person does not control the process of moving the car doors, but only initializes it.

The technical problem that the invention seeks to solve is to create a device for moving car doors, the use of which will allow, without capturing a moving object (car doors or parts thereof), to fully and accurately control its movement without losing tactile contact with the object and feeling through the intensity of this contact is the real resistance exerted by the external environment to the movement of the object.

The essence of the invention

The main objective of the invention is the improvement of ergonomic and aesthetic characteristics and its use for the needs of people with disabilities, for which it is necessary to exclude the capture of a moving object or part of it by the hand of a person and to ensure continuous tactile contact of the object with part of the human body during any movement of the object.

Another objective of the present invention is to expand the arsenal of technical means and capabilities of devices for moving car doors.

Other objectives of the present invention will be discussed below as the present description and drawings.

The problem is solved as follows: the known device for moving car doors (Magic Touch, www.lafranceautoworks.com, WO 2007011938 A2), which contains a tactile touch surface, a control microcontroller and a lock mechanism, according to the claimed invention, the touch surface is movably mounted relative to the car doors and is moved by the first drive equipped with force and position sensors so as to maintain the force of tactile contact with a part of the human body close to the given, depending on the real the force with which the car door is moved by a second drive equipped with a force and position sensor and designed to move the car door so that the position of the tactile touch surface is within the range of its possible movements relative to the car door.

In a particular embodiment of the claimed invention, the tactile touch surface is equipped with a force sensor that acts as a force sensor of the first drive, while the first drive is not equipped with a force sensor.

In a particular embodiment of the invention, a tactile screen or a tactile rug is used as a tactile touch surface.

Blueprints

When considering embodiments of the present invention, narrow terminology is used. However, the present invention is not limited to the accepted terms and it should be borne in mind that each such term covers all equivalent elements that work in a similar way and are used to solve the same problems.

Figure 1 - schematically shows a device for moving car doors.

Figure 2 - shows the connection diagram of the actuators, sensors, the locking mechanism and the touch surface for the control microcontroller.

The implementation of the invention

Figure 1 shows the following positions: a locking mechanism 1, an elastic lever 2, a control microcontroller 3, a second drive 4, a car body 5, a car door 6, a tactile touch surface 7, a first drive 8, axis 9.

Figure 2 shows the following positions: engine 4.1 of the second drive 4, the sensor position 4.2, the force sensor 4.3, the engine 8.1 of the first drive 8, the sensor position 8.2, the force sensor 8.3.

Position 7.1 shows the option of placing the force sensor 7.1 on a tactile touch surface.

Position 8.3 shows a force sensor, which may be absent if there is a force sensor 7.1 on a tactile touch surface.

The problem is solved as follows: the known device (Magic Toutch, www.lafranceautoworks.com, WO 2007011938 A2), consisting of a tactile sensor surface (7), a control microcontroller (3) with circuits for ensuring its operation and a locking mechanism (1), according to the claimed invention (Fig. 1), the tactile touch surface (7) is mounted movably relative to the car doors (6) on an elastic lever (2), or a lever with an elastic element, the lever is moved by a first drive (8) equipped with a force and position sensor, and car door (6) eschayutsya about an axis (9) relative to the housing (5) of the vehicle, the second actuator (4) equipped with the force sensor and position.

As a tactile touch surface (7), a tactile screen or a tactile rug can be used, and the characteristics of tactile contact can be used to control the car’s equipment and control access to it. The signals from all sensors and the performing signals of the first and second drives and the lock are connected (figure 2) to the control microcontroller (3). In addition to the functions of opening, closing and controlling the movement of the doors (6) of the car, the control microcontroller (3) can perform other well-known functions of controlling the car’s equipment and controlling access to it.

The system operates as follows. With the doors (6) of the vehicle closed and the vehicle stopped, after touching a part of the human body to the tactile sensory surface (7), with a force of at least the force specified in the tactile contact limits, the control microcontroller (3) responds to touch and compares the specified force with effort. If the applied force is greater than the specified force and then decreases, the control microcontroller (3) sends a signal to open the doors (6) of the car to the locking mechanism (1). Then, if the applied force is less than the specified one, then the control microcontroller (3) by means of the first drive (8) moves the elastic lever (2) with the tactile touch surface (7) towards the person.

If the applied force is greater than the specified one, then the elastic lever (2) moves by the first drive (8) towards the car, if as a result of moving the door (6) the car will be in the position in which they can be locked, the control microcontroller (3) sends a signal closing the doors (6) of the vehicle to the locking mechanism (1), opening the doors (6) of the vehicle is permitted by the control microcontroller (3) if the applied force becomes less than the specified one. If there is permission, then to open the doors (6) of the car again you need to make an effort more than the specified one and then reduce it. At the same time, the control microcontroller (3) moves the doors (6) of the car through the second drive (4) so that the elastic lever (2) is inside the range of its possible movements relative to the doors (6) of the car. The force with which the doors of the car (6) move is measured by the force sensor of the second drive (4) and is used by the control microcontroller (3) to establish the set force that a person who moves the doors (6) of the car feels.

The signal from the position sensor of the second drive (4) is used by the control microcontroller (3) to determine the boundaries of movement of the doors (6) of the car. Thus, the door (6) of a car or other object follows the movement of a part of the human body, holding the force of continuous tactile contact with a part of the body of a person close to a predetermined force, reflecting the real force required to move the door (6) of a car or other an object. The breaking of the tactile contact and completion of the movement can be accomplished by a sharp movement towards the person or by moving the contacting part of the human body beyond the limits of the tactile sensory surface (7).

To keep the tactile contact force close to the specified one, a simple double-loop feedback algorithm was used, which controls the movement of the elastic lever (2) through the first drive (8) and the movement of the doors (6) of the car through the second drive (4), but can be used more sophisticated and accurate backward algorithms than the foregoing, for example, proportional-integral-differential (see http://en.wikipedia.org/wiki/PID_controller).

The above principle of operation of the system does not exclude the possibility of closing the doors (6) of the car with a push towards the car and opening the doors (6) of the car by capturing the doors (6) of the car. The jolt and the grip of the doors are determined when the second drive (4) is stopped and the force measured by the sensor of the second drive (4) is exceeded, the comfort limit for tactile contact, i.e. when the contact becomes power.

If the force is directed towards the car, then the control microcontroller (3) determines the push, moves the car doors (6) to the closing position and sends the closing signal to the locking mechanism (1). If the force is directed toward the person, then the grip is determined and the doors (6) of the car are moved by the second drive (4) towards the person to the opening limit, provided that the force is measured by the force sensor of the second drive (4) exceeds the comfortable limit for tactile contact.

Technical result

The technical result of the claimed invention is the development of a device for moving car doors, the use of which will allow a person to control the process of moving car doors while maintaining feedback of force between the person and the car door and maintaining continuous tactile contact between the sensory surface and part of the human body.

Claims (2)

1. A device for moving a car door, comprising a tactile touch surface, a control microcontroller and a locking mechanism, characterized in that the tactile touch surface is movably mounted relative to the car doors and is moved by a first drive equipped with a force and position sensor so as to maintain tactile contact with the part human body close to a given, depending on the real effort with which the car door moves with a second drive equipped with a force and polo sensor and designed to move the car door so that the position of the tactile sensory surface is within the range of its possible movements relative to the car door. 2. The device according to claim 1, characterized in that a tactile screen or a tactile rug is used as a tactile touch surface.

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