Control system and method for electric pedal for passenger car disabled people to get on and off

Abstract

The invention discloses a control system and method for an electric pedal for the disabled to get on and off a passenger car, and the system comprises a sensor used for monitoring the state of the car in real time, the sensor is connected with a controller, and the controller receives signals of the sensor and outputs a control instruction to an execution mechanism according to preset control logic. The executing mechanism comprises an electric pedal installed at the position of a vehicle middle door and connected with the ground after being driven to stretch out. The controller is also connected with the human-computer interaction interface and the touch control device, and the human-computer interaction interface is used for displaying a system state and receiving / outputting an instruction; the touch control device comprises a getting-on request button installed on the left side of a middle door of the vehicle and a getting-off request button installed beside a seat of the disabled. According to the invention, linkage control of the disabled and the driver is realized, and the operation convenience and the response speed are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of transportation auxiliary equipment, and specifically relates to a control system of an electric pedal for disabled people to get on and off a bus, and also relates to a control method of the electric pedal for disabled people to get on and off a bus. Background Art

[0002] With the progress of society and the development of public transportation, the construction of barrier-free facilities for buses, as an important part of urban public transportation, has received increasing attention. As an important auxiliary device to help disabled people get on and off the bus, the intelligent control of electric pedals has become the key to improving service quality and operational efficiency. In the existing technology, the control of electric pedals mostly relies on manual operation, which has problems such as complex operation, slow response, and inconvenient fault handling. Summary of the invention

[0003] The present invention aims to provide an intelligent control system and method for an electric pedal for disabled people to get on and off a bus, so as to achieve rapid response and precise control of the electric pedal, increase a fault handling mode, and improve the operating efficiency and service quality of the bus.

[0004] The technical solution adopted by the present invention is a control system for an electric step for disabled people to get on and off a bus, comprising: Sensors to monitor vehicle status in real time; The controller receives the signal from the sensor and outputs the control instruction to the actuator according to the preset control logic; The actuator includes an electric pedal installed at the middle door position of the vehicle, which is driven to extend and connect to the ground, so as to enable the disabled to get on and off the vehicle; The human-machine interaction interface is located in the cab and connected to the controller to display the system status and receive / output instructions; The touch control device includes a boarding request button installed on the left side of the vehicle middle door and an alighting request button installed next to the disabled seat, which are connected to the controller through a signal conversion module; The fault handling module is used to detect system faults and transmit them to the controller.

[0005] Furthermore, the above-mentioned sensors include a door status sensor, a vehicle parking status sensor, an electric pedal position sensor, a grating sensor and a camera, and each sensor is electrically connected to the controller for real-time monitoring of relevant status.

[0006] A method for controlling an electric step for disabled people to get on and off a bus, comprising the following steps: S1, receiving an electric pedal operation request sent by a passenger through a touch control device; S2, real-time detection of the vehicle's safety status, including whether the door is open, whether the vehicle is parked and the brakes are applied; S3. If the safety status meets the conditions, the electric step drive motor is started according to the operation request, and the electric step is controlled to extend to a preset position for passengers to get on and off the vehicle; S4. When passengers are getting on and off the vehicle, the operating status of the electric step and the safety status of the vehicle are continuously monitored to ensure safe operation; S5. After getting on or off the vehicle, the electric pedal is retracted to its initial position by receiving a retraction command automatically triggered by the driver or the system; S6. During the entire control process, fault self-diagnosis is performed. Once an abnormality is found, the emergency response mechanism is immediately triggered, including stopping the electric pedal operation, issuing an alarm signal and recording the fault information.

[0007] Furthermore, in the above step S1, the disabled passenger presses a request button for getting off or getting on the bus, and the system receives the request signal through the human-computer interaction interface and issues a prompt signal on the instrument.

[0008] Furthermore, the above step S2 detects whether the door opening operation area and the electric pedal extension preset position are safe through the grating sensor and the camera. If there are passengers, the system prompts the passengers to avoid through the speaker; the controller confirms that the door opening button is triggered; the vehicle speed sensor confirms that the vehicle is parked and the speed is zero; the brake status sensor confirms that the vehicle brakes are applied; the above conditions are continuously detected for 30 seconds. If any of the above conditions is not met, the system sends a warning signal and suspends operation; if all conditions are met, proceed to the next step.

[0009] Furthermore, in step S3, if the safety status meets the conditions, the controller sends a command to start the electric pedal drive motor and start the door valve to open the door, and the electric pedal begins to extend. Through data analysis and algorithm optimization, the operating parameters of the electric pedal are automatically adjusted to adapt to different operating scenarios. At the same time, the system monitors the pedal position in real time through the position sensor; the door status sensor confirms that the door is open; when the position sensor detects that the electric pedal has been extended to the preset position, the controller stops the drive motor; the system turns off the electric pedal extension indicator and sends a prompt signal to the driver and passenger.

[0010] Furthermore, in step S4, after the driver confirms that all passengers have completed boarding and alighting, the system uses the grating sensor and the camera to detect whether the door closing operation area is safe and whether the passengers have completed boarding and alighting safely. If there are passengers, the system automatically prompts the passengers to give way through the speaker; the controller confirms that the door closing button is triggered; the vehicle speed sensor detects that the vehicle is parked and the speed is zero; the brake status sensor confirms that the vehicle brakes are applied; the above conditions are continuously detected for 30 seconds. If any of the above conditions is not met, the system sends a warning signal and suspends the operation; if all conditions are met, proceed to the next step.

[0011] Furthermore, in step S5, the door status sensor confirms that the door is closed; the controller issues a command to start the electric pedal drive motor to reverse; the electric pedal begins to retract, and the system simultaneously monitors the resistance and pedal position during the retraction process; when the position sensor detects that the electric pedal has been fully retracted, the controller stops the drive motor, the system turns off the relevant indicator devices, and returns to the initial standby state.

[0012] Compared with the prior art, the present invention has the following beneficial effects: (1) It realizes the linkage control between the disabled and the driver, improving the convenience and response speed of operation; (2) Added fault handling mode, improved system reliability and stability, and reduced maintenance costs; (3) Through intelligent control means, the operational efficiency and service quality of buses have been improved, reflecting the people-oriented design concept. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The electrical connection block diagram of the control system for the electric step for disabled people to get on and off the bus; Figure 2 The present invention is a flow chart of the control method of the electric pedal for disabled people to get on and off the bus. DETAILED DESCRIPTION

[0014] The present invention will be further explained below in conjunction with the accompanying drawings to facilitate better understanding by those skilled in the art.

[0015] Example 1 like Figure 1 As shown, a control system for an electric pedal for disabled people to get on and off a bus includes a sensor 1 for real-time monitoring of the vehicle status. The sensor 1 is connected to a controller 2. The controller 2 receives the signal of the sensor 1 and outputs a control instruction to an actuator 3 according to a preset control logic. The actuator 3 includes an electric pedal installed at the middle door position of the vehicle. The electric pedal is connected to the ground after being driven to get on and off the bus for disabled people. The electric pedal is connected to a height adjustment mechanism, which can automatically adjust the height of the electric pedal according to the height difference of passengers. The controller 2 is also connected to a human-machine interaction interface 4 and a touch device 5. The human-machine interaction interface 4 is arranged in the cab and is used to display the system status and receive / output instructions. The touch device 5 includes a boarding request button installed on the left side of the middle door of the vehicle and a disembarking request button installed next to the disabled seat, which is connected to the controller 2 through a signal conversion module 6. In addition, a fault processing module 7 is provided for detecting system faults and transmitting them to the controller 2.

[0016] Among them, the sensor 1 includes a door status sensor, a vehicle parking status sensor, an electric pedal position sensor, a grating sensor and a camera, and each sensor is electrically connected to the controller for real-time monitoring of relevant status.

[0017] Example 2 like Figure 2 As shown, a method for controlling an electric step for disabled persons to get on and off a bus includes the following steps: S1. Receive the electric pedal operation request sent by the passenger through the touch device; the disabled passenger presses the request button for getting off or getting on the bus, the system receives the request signal through the human-computer interaction interface, and sends a prompt signal on the instrument.

[0018] S2. Real-time detection of the vehicle's safety status, including whether the door is open, whether the vehicle is parked and the brakes are applied; the grating sensor and camera are used to detect whether the door opening operation area and the electric pedal are safe to extend to the preset position. If there are passengers, the system prompts the passengers to avoid the vehicle through the speaker; the controller confirms that the door opening button is triggered; the vehicle speed sensor confirms that the vehicle is parked and the speed is zero; the brake status sensor confirms that the vehicle brakes are applied; the above conditions are continuously detected for 30 seconds. If any of the above conditions is not met, the system sends a warning signal and suspends the operation; if all conditions are met, proceed to the next step.

[0019] S3. If the safety status meets the conditions, the electric pedal drive motor is started according to the operation request, and the electric pedal is controlled to extend to the preset position for passengers to get on and off the vehicle; if the safety status meets the conditions, the controller issues a command to start the electric pedal drive motor and start the door valve to open the door, and the electric pedal begins to extend. Through data analysis and algorithm optimization, the operating parameters of the electric pedal are automatically adjusted to adapt to different operating scenarios. At the same time, the system monitors the pedal position in real time through the position sensor; the door status sensor confirms that the door is open; when the position sensor detects that the electric pedal has been extended to the preset position, the controller stops the drive motor; the system turns off the electric pedal extension indicator and sends a prompt signal to the driver and passengers.

[0020] S4. During the process of passengers getting on and off the vehicle, the operating status of the electric pedal and the safety status of the vehicle are continuously monitored to ensure safe operation; after the driver confirms that all passengers have completed getting on and off the vehicle, the grating sensor and camera are used to detect whether the door closing operating area is safe and whether the passengers have completed getting on and off the vehicle safely. If there are passengers, the system will automatically prompt the passengers to avoid the vehicle through the speaker; the controller confirms that the door closing button is triggered; the vehicle speed sensor detects that the vehicle is parked and the speed is zero; the brake status sensor confirms that the vehicle brakes are applied; the above conditions are continuously detected for 30 seconds. If any of the above conditions is not met, the system will issue a warning signal and suspend operation; if all conditions are met, proceed to the next step.

[0021] S5. After completing boarding and exiting the vehicle, the system receives a retraction command automatically triggered by the driver or the system, and controls the electric pedal to retract to the initial position; confirms that the door is closed through the door status sensor; the controller issues a command to start the electric pedal drive motor to reverse; the electric pedal begins to retract, and the system simultaneously monitors the resistance and pedal position during the retraction process; when the position sensor detects that the electric pedal has been fully retracted, the controller stops the drive motor, the system turns off the relevant indicator devices, and returns to the initial standby state.

[0022] S6. During the entire control process, fault self-diagnosis is performed. Once an abnormality is found, the emergency response mechanism is immediately triggered, including stopping the electric pedal operation, issuing an alarm signal and recording the fault information.

[0023] The above-described embodiments are only for describing the preferred implementation of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit and principles of the present invention, various modifications and improvements made by those skilled in the art to the technical solution of the present invention should all fall within the scope of protection determined by the claims of the present invention.

Claims

1. A control system for an electric step for disabled people to get on and off a bus, characterized in that: include: Sensors to monitor vehicle status in real time; The controller receives the signal from the sensor and outputs the control instruction to the actuator according to the preset control logic; The actuator includes an electric pedal installed at the middle door position of the vehicle, which is driven to extend and connect to the ground, so as to enable the disabled to get on and off the vehicle; The human-machine interaction interface is located in the cab and connected to the controller to display the system status and receive / output instructions; The touch control device includes a boarding request button installed on the left side of the vehicle middle door and an alighting request button installed next to the disabled seat, which are connected to the controller through a signal conversion module; The fault handling module is used to detect system faults and transmit them to the controller.

2. The control system of the electric step for disabled people to get on and off a bus according to claim 1 is characterized in that: The sensors include a door status sensor, a vehicle parking status sensor, an electric pedal position sensor, a grating sensor and a camera, and each sensor is electrically connected to the controller for real-time monitoring of relevant status.

3. A method for controlling an electric step for disabled persons to get on and off a bus according to any one of claims 1-2, characterized in that: The following steps are involved: S1, receiving an electric pedal operation request sent by a passenger through a touch control device; S2, real-time detection of the vehicle's safety status, including whether the door is open, whether the vehicle is parked and the brakes are applied; S3. If the safety status meets the conditions, the electric step drive motor is started according to the operation request, and the electric step is controlled to extend to a preset position for passengers to get on and off the vehicle; S4. When passengers are getting on and off the vehicle, the operating status of the electric step and the safety status of the vehicle are continuously monitored to ensure safe operation; S5. After getting on or off the vehicle, the electric pedal is retracted to its initial position by receiving a retraction command automatically triggered by the driver or the system; S6. During the entire control process, fault self-diagnosis is performed. Once an abnormality is found, the emergency response mechanism is immediately triggered, including stopping the electric pedal operation, issuing an alarm signal and recording the fault information.

4. The control method of the electric step for disabled people getting on and off a bus according to claim 3 is characterized in that: In step S1, the disabled passenger presses a request button for getting off or getting on the bus, and the system receives the request signal through the human-computer interaction interface and sends a prompt signal on the instrument.

5. The control method of the electric step for disabled people getting on and off a bus according to claim 3 is characterized in that: In step S2, the grating sensor and the camera are used to detect whether the door opening operation area and the electric pedal extension preset position are safe. If there are passengers, the system prompts the passengers to avoid through the speaker; the controller confirms that the door opening button is triggered; The vehicle speed sensor confirms that the vehicle is parked and the speed is zero; the brake status sensor confirms that the vehicle brakes are applied; the above conditions are continuously detected for 30 seconds. If any of the above conditions is not met, the system will issue a warning signal and suspend operation; if all conditions are met, proceed to the next step.

6. The control method of the electric step for disabled people getting on and off a bus according to claim 3 is characterized in that: In step S3, if the safety state meets the conditions, the controller issues a command to start the electric pedal drive motor and the door valve to open the door, and the electric pedal begins to extend. At the same time, the system monitors the pedal position in real time through the position sensor; The door status sensor confirms that the door is open; When the position sensor detects that the electric pedal has been extended to the preset position, the controller stops the drive motor; the system turns off the electric pedal extension indicator and sends a prompt signal to the driver and passengers.

7. The control method of the electric step for disabled people getting on and off a bus according to claim 3 is characterized in that: In step S4, after the driver confirms that all passengers have completed boarding and alighting, the driver uses the grating sensor and camera to detect whether the door closing operation area is safe and whether the passengers have completed boarding and alighting safely. If there are passengers, the system automatically prompts the passengers to avoid the vehicle through the speaker; Confirm the door closing button is triggered through the controller; The vehicle speed sensor detects that the vehicle is parked and the speed is zero; the brake status sensor confirms that the vehicle brakes are applied; the above conditions are continuously detected for 30 seconds. If any of the above conditions is not met, the system will issue a warning signal and suspend operation; if all conditions are met, proceed to the next step.

8. The method for controlling the electric step for disabled persons getting on and off a bus according to claim 3 is characterized in that: Step S5, confirming that the door is closed through the door status sensor; the controller issues a command to start the electric pedal drive motor to reverse; the electric pedal starts to retract, and the system simultaneously monitors the resistance and pedal position during the retraction process; When the position sensor detects that the electric pedal has been fully retracted, the controller stops the drive motor, the system turns off the relevant indicating devices, and returns to the initial standby state.

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