RU2794426C1 - Vehicle door control system - Google Patents

Abstract

FIELD: mechanical engineering.

SUBSTANCE: vehicle door control system contains a main control unit with a controller, a memory and an output signal unit. The system has a device for checking the correspondence of the received and registered identification code, a device for detecting user manipulation with a door lock release switch, a device for detecting user-issued commands, a device for detecting an obstacle in the way of opening a door, and a sensor for detecting a user's touch. Sensors and devices are connected to the main control unit via the CAN bus. Each door has additional control units associated with the main control unit: a solenoid control unit and an obstacle data control unit.

EFFECT: reliability of the system is increased.

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Description

The invention relates to mechanical engineering, namely to control systems for vehicle door drives.

A known information and control system of the vehicle (patent for PM RU No. 102568 dated 13.10.2010), containing the control unit of the instrument panel and the control units of the door drives connected to each other by the information bus, while the latter are connected to the position sensors of the door leaves and the actuators of their drives, diagnostic tools built into the mentioned control units, which additionally contains control units for external lighting devices.

The disadvantage of this information management system is the absence of subsystems and devices in it that ensure the safety and ease of use of doors.

A vehicle controller is known (patent for FROM RU No. 2195404 dated 04/11/2002), consisting of a plurality of functional modules, each of which contains a central processor connected via an individual CAN interface node with the interface module CAN interface modules and connected by inputs to auxiliary contacts and limit switches of the vehicle, and outputs - to control lamps, instrumentation, indicators and executive bodies of the vehicle.

The disadvantage of this controller is its complexity, lack of means (sensors and actuators) to control the door systems of public transport by passengers with disabilities.

A vehicle door control device is known (application US No. 2017/0268280 dated March 20, 2017), containing: a sensor provided on the vehicle door; a processor (controller) configured to control the opening or closing of the door based on information regarding the object detected through the sensor; power supply connected to the processor; non-volatile memory associated with the processor; block output signals associated with the processor; interface connecting external devices to the processor. The sensor may be an ultrasonic sensor or a video camera. The sensor can be rotatable.

The disadvantage of this control device is the lack of controls available to people with disabilities, and reduced reliability and speed, due to the only device that controls all the actuating elements of the doorway.

An integrated and combined system for actuating the doors of trackless vehicles is known (patent for FROM RU No. 2627253 dated 09/11/2014), having a central (main) electronic control unit for actuating the doors, and an additional electronic control unit for other functions that differ from the system control functions actuating the doors, by a common CAN bus connecting the objects of the system. The system provides control of one to three doors. The doors can be controlled by both the central unit and an additional electronic unit.

The system has sensors for the active edge of the door, pressure, emergency opening, door lighting, declared exit switches for passengers (including those with limited mobility), a door open / close switch, a door closing warning relay, and the "open / close the door" functions can be implemented, "open/close all doors".

The disadvantage of this system is the lack of means (sensors and actuators) to control the door systems of public transport for passengers with disabilities.

The technical problem solved by the invention is to increase the reliability of the vehicle door control system and the speed of identifying the presence of an obstacle in the range of the doors.

The technical problem - increasing the reliability of the vehicle door control system and the speed of identifying the presence of an obstacle in the door openings - is solved in the vehicle door control system.

The control system for doors of the vehicle, having a sensitive edge with an obstacle presence sensor, with drives controlled by solenoids, contains a main control unit with a controller, a non-volatile memory for recording a working program, an output signal unit; additional door control units; a device for checking the correspondence between the received and registered identification code; a user manipulation detection device with a door lock release switch; a device for detecting commands issued by a user at the door; an obstacle detection device in the range covered by the angle of rotation of the door, excluding the movement of the door to prevent the door from colliding with an obstacle; a sensor outside the vehicle to detect the touch of the user; CAN bus connecting sensors and devices with the main door control unit, while each door has additional control units, one of which, connected by the first bus to the main control unit, is a solenoid control unit, and the other, connected by the second bus to the main control unit , - a control unit for data received from sensors for the presence of an obstacle and their transmission via an electric cable to the solenoid control unit.

Achieving a technical effect - increasing the reliability of the vehicle door control system and the speed of identifying the presence of an obstacle in the door openings - is provided by the following set of distinctive features of the vehicle door control system: each door has additional control units, one of which, connected by the first bus to the main control unit, is a solenoid control unit, and the other, connected by a second bus to the main control unit, is a control unit for data received from sensors for the presence of an obstacle and a sensitive edge and transmitting them via an electric cable to the solenoid control unit.

To increase the reliability of the door control system, the main unit additionally has a diagnostic device and a block of input signals from actuator parameter sensors.

To simplify the software (firmware) update of the doorway control unit, the CAN bus connects the main control unit with the operator panel.

To determine the presence of a person in the doorway and its proximity to the door leaf, as well as the convenience and safety of people with limited mobility, the door control system has ramp position sensors for people with limited mobility, buttons for people with limited mobility, a set of photo sensors, photo barriers and door position sensors.

This combination of a set of distinctive features of the control unit was not found during the patent information search, therefore, the claimed technical solution meets the criterion of "novelty". It does not follow explicitly from the prior art, therefore, the technical solution meets the criterion of "inventive step".

In FIG. 1 shows a block diagram of a vehicle door control unit.

In FIG. 2 shows the structure of the doorway zone with sensors and control devices.

The door control system 1 of the vehicle (Fig. 1, 2), having a sensitive edge 2 with an obstacle presence sensor 3 (DNP), with actuators 4 controlled by solenoids, contains a main control unit 5 with a controller 6, with which a non-volatile memory 6a is electrically connected for records of the working program, block 7 output signals, device 8 for diagnosing the state of failures of system elements, block 9 input signals (from sensors of low and high pressure levels in the pneumatic system of pneumatic drives or from sensors of low and high voltage - in the electrical system of electric drives); additional blocks 10, 11 door control 1; moreover, each door 1 has additional control units 10, 11, one of which, connected by the first bus 12 to the main control unit 5, is the solenoid control unit 10, and the other, connected by the second bus 13 to the main control unit 5, is the control unit 11 data received from sensors 3 for the presence of an obstacle and a sensitive edge 2 and transmitting them via an electric cable to the solenoid control unit 10; a device 14 for checking the correspondence between the received and registered identification code, a device 15 for detecting manipulation of the user with the unlock switch of the lock of the door 1, a device 16 for detecting commands issued by a user located at the door 1, a device 17 for detecting an obstacle in the range covered by the rotation angle of the door 1, excluding moving the door 1 to prevent the door 1 from colliding with an obstacle; connected by interface 18 (for example, RS-485, CAN, LIN, etc.) with controller 6 via bus 19 (for example, CAN bus) connecting sensors 20 located outside the vehicle to detect the user (door positions, ramp positions 21 for disabled people, photo sensors, photo barriers) and buttons 22 (with indication of opening from the remote control, with indication of opening for people with limited mobility, control of the retractable footboard 23); operator panel 24; a power supply 25 connected to the main control unit 5; devices 26 for light and/or sound signaling the closing of doors 1 are connected to controller 6 via interface 18 (for example, RS485) and bus 19.

Claims (4)

1. A control system for vehicle doors that have a sensitive edge with an obstacle presence sensor, with drives controlled by solenoids, containing a main control unit with a controller, non-volatile memory for recording a working program, an output signal unit; additional door control units; a device for checking the correspondence between the received and registered identification code; a user manipulation detection device with a door lock release switch; a device for detecting commands issued by a user at the door; an obstacle detection device in the range covered by the angle of rotation of the door, excluding the movement of the door to prevent the door from colliding with an obstacle; a sensor outside the vehicle for detecting a user's touch; CAN bus connecting sensors and devices with the main door control unit, characterized in that each door has additional control units, one of which, connected by the first bus to the main control unit, is a solenoid control unit, and the other, connected by the second bus to the main a control unit, - a control unit for data received from sensors for the presence of an obstacle on the sensitive edge of the door and transmitting them via an electric cable to the solenoid control unit. 2. The system according to claim 1, characterized in that the main unit additionally has a diagnostic device and a block of input signals from the sensors of the drive parameters. 3. The system according to claim 1, characterized in that the CAN bus connects the main control unit with the operator panel. 4. The system according to claim 1, characterized in that it has ramp position sensors for people with limited mobility, buttons for people with limited mobility, a set of photo sensors, photo barriers and door position sensors.

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