An old-age type intelligent telescopic pedal for a vehicle

Abstract

The application discloses a kind of old type intelligent telescopic pedal for vehicle, including telescopic pedal, vehicle detection module, control module;Telescopic pedal is installed below the door of vehicle body, can be extended and withdrawn relative to vehicle body along horizontal direction, to realize the convergence with platform;Vehicle detection module is installed at the position close to the door of vehicle body, for detecting car platform distance, telescopic path obstacle and system failure;Control module is electrically connected with telescopic pedal, vehicle detection module respectively, can control pedal automatic telescoping or switch manual mode according to distance signal, and control pedal emergency stop or retract when detecting obstacle or failure, and trigger alarm prompt.The application can realize the automatic accurate convergence of vehicle and platform, eliminate the risk of height difference when getting on and off, have obstacle protection, failure alarm, safety locking and state visualization function, structure is reliable, safe to use, suitable for public transport vehicles such as bus, coach.

Description

Technical Field

[0001] This invention relates to the field of safety auxiliary devices for public transportation vehicles, specifically to an age-friendly intelligent retractable pedal for vehicles. Background Technology

[0002] Currently, when public transportation vehicles such as buses and coaches stop at stations, there is generally a certain gap and height difference between the vehicle body and the station platform. Passengers, especially the elderly, children and people with mobility difficulties, are prone to tripping or falling when getting on and off the vehicle.

[0003] The retractable pedals on some existing vehicles are mostly manually controlled and cannot be automatically adjusted according to the actual distance between the vehicle and the platform. They also lack obstacle detection, fault protection and distance indication functions, which pose problems such as collision risk, inaccurate control and insufficient safety during use.

[0004] Therefore, developing a retractable stepping board that can automatically detect distance, intelligently extend and retract, and has safety locking and audible and visual alarm functions is of great practical significance for improving the safety of getting on and off public transportation. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an age-friendly intelligent retractable step for vehicles, enabling automatic and precise connection between the step and the platform when the vehicle stops. It features obstacle detection, fault protection, audible and visual alarms, safety locking, and distance status visualization prompts, improving the safety and convenience of getting on and off the vehicle.

[0006] The technical solution of the present invention is as follows:

[0007] This invention proposes an elderly-friendly intelligent retractable pedal for vehicles, comprising:

[0008] The retractable step is installed below the door of the vehicle body and can extend and retract horizontally relative to the vehicle body to connect with the platform.

[0009] The vehicle-mounted detection module is installed on the vehicle body near the door to detect the relative distance between the vehicle body and the platform, as well as to detect obstacles and malfunctions during the extension or retraction of the retractable pedal.

[0010] The control module is electrically connected to the retractable pedal and the vehicle-mounted detection module, respectively; the control module is configured as follows:

[0011] Based on the distance parameters detected by the vehicle-mounted detection module, it is determined whether the vehicle body and the platform are within the preset safe distance range;

[0012] When within a preset safe distance range, the retractable pedal is controlled to automatically extend horizontally to the edge of the platform;

[0013] When the preset safe distance is exceeded, the retractable pedal is switched to manual control mode; and

[0014] When the vehicle-mounted detection module detects an obstacle or malfunction, it controls the retractable pedal to pause its extension or retract automatically and triggers an alarm.

[0015] Preferably, the preset safety distance range is 5-15cm.

[0016] Preferably, the vehicle-mounted detection module includes:

[0017] The distance detection unit is used to detect the relative distance between the vehicle body and the platform;

[0018] An obstacle detection unit is used to detect obstacles and malfunctions during the extension or retraction of the retractable pedal.

[0019] Preferably, the distance detection unit is an ultrasonic sensor or an infrared sensor; and / or, the obstacle detection unit is an ultrasonic sensor or a photoelectric sensor.

[0020] Preferably, the control module is an on-board microcontroller or PLC controller, installed inside the vehicle body or in the driver's area.

[0021] Preferably, the upper surface of the retractable pedal is provided with an anti-slip texture layer or anti-slip strip.

[0022] Preferably, the outer edge of the retractable pedal is provided with an LED light strip or reflective strip.

[0023] Preferably, it also includes an alarm notification device, which is electrically connected to the control module and is used to trigger an audible and visual alarm when an obstacle or malfunction is detected by the control module.

[0024] Preferably, it also includes a safety locking mechanism, which is electrically connected to the control module and cooperates with the retractable pedal. The retractable pedal is locked and fixed by the control module after it is extended into place.

[0025] Preferably, it also includes a driver's cab radar display screen, which is signal-connected to the control module and used to display the distance status between the vehicle and the platform, and provides prompts through green, yellow, and red light effects respectively.

[0026] The green light effect corresponds to the vehicle body and the platform being within a preset safe distance range, and the retractable pedal can work automatically.

[0027] The yellow light effect indicates that the distance between the vehicle body and the platform is far, and the retractable pedal can still be used.

[0028] The red light effect indicates that the distance between the vehicle and the platform is too far, and the retractable pedal cannot work automatically.

[0029] The advantages of this invention over the prior art are:

[0030] This invention can automatically determine whether to extend the step based on the actual distance between the vehicle and the platform, achieving a level connection with the platform and eliminating the risks of height difference and gap.

[0031] This invention has obstacle detection and fault detection functions. When encountering an obstacle or system abnormality, it can automatically pause or retract the pedal and issue an alarm to avoid collision damage.

[0032] This invention incorporates a safety locking mechanism that automatically locks the pedal once it extends to its designated position, thereby improving load-bearing stability.

[0033] This invention uses a three-color light effect on the driver's dashboard radar display screen to intuitively indicate the distance status, making it easy for the driver to make a quick judgment.

[0034] It should be understood that the description in the Summary of the Invention is not intended to limit the key or essential features of the embodiments of the present invention, nor is it intended to restrict the scope of the invention. Other features of the invention will become readily apparent from the following description. Furthermore, implementation of any embodiment of the present invention does not imply the simultaneous possession or achievement of multiple or all of the aforementioned beneficial effects. Attached Figure Description

[0035] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0036] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0037] Figure 1 This is a schematic diagram of the overall structure of an age-friendly intelligent retractable pedal for vehicles according to some embodiments of the present invention;

[0038] Figure 2 This is a schematic diagram of the retractable pedal structure according to some embodiments of the present invention;

[0039] Figure 3 This is a schematic diagram showing the connection between the primary telescopic plate and the secondary telescopic plate in some embodiments of the present invention;

[0040] Figure 4 This is a schematic diagram of the control module control according to some embodiments of the present invention;

[0041] Figure 5 This is a schematic diagram of a driver's console radar display screen according to some embodiments of the present invention.

[0042] Marked in the image:

[0043] 1-Car body; 101-Car door;

[0044] 2-Retractable pedal; 201-Fixed base plate; 202-First-stage telescopic plate; 203-Second-stage telescopic plate; 204-Drive mechanism;

[0045] 3-On-board detection module;

[0046] 4-Anti-slip strips;

[0047] 5-Reflective strips;

[0048] Platform 6;

[0049] 7- Driver's console radar display.

[0050] The same or corresponding marks in the diagram indicate the same or corresponding parts. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Here, the illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0052] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0053] It should be understood that the terms "comprising / including," "consisting of," or any other variations are intended to cover non-exclusive inclusion, such that a product, apparatus, process, or method that comprises a list of elements includes not only those elements but may also include, where necessary, other elements not expressly listed, or elements inherent to such a product, apparatus, process, or method. Without further limitation, an element defined by the phrases "comprising / including," "consisting of," does not exclude the presence of additional identical elements in the product, apparatus, process, or method that includes said element.

[0054] It should also be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device, component or structure referred to must have a specific orientation, be constructed or operated in a specific orientation, and should not be construed as a limitation of the present invention.

[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0056] The implementation of the present invention will be described in detail below with reference to preferred embodiments.

[0057] See Figures 1 to 5 This embodiment discloses an elderly-friendly intelligent retractable pedal 2 for vehicles. Its core structure includes a retractable pedal 2, an on-board detection module 3, and a control module. The installation position, specific structure, cooperation relationship, and working principle of each structure are as follows to ensure the stable implementation of the entire device:

[0058] The retractable pedal 2, as the execution component of the present invention, is installed below the door 101 of the vehicle body 1 and at the corresponding position of the crossbeam of the vehicle chassis.

[0059] See Figure 2 , Figure 3 To improve the safety of the retractable step pedal 2, the upper surface of the retractable step pedal 2 is provided with an anti-slip textured layer or anti-slip strips 4. This effectively prevents passengers from slipping and falling even in wet environments such as rain or snow.

[0060] See also Figure 2 , Figure 3To improve the safety of the retractable pedal 2, an LED light strip or reflective strip 5 is provided on the outer edge of the retractable pedal 2. If an LED light strip is used, a waterproof LED light strip can be used, which is pasted on the outer edge of the retractable pedal 2 and electrically connected to the control module. When the retractable pedal 2 is extended, the LED light strip automatically lights up (emitting a warm yellow light), which serves as a warning in low light conditions (such as at night or on cloudy days), reminding passengers to pay attention to the pedal position, and also making it easier for the driver to observe the pedal extension status. If a reflective strip 5 is used, it is made of highly reflective material and pasted on the outer edge of the retractable pedal 2. It can reflect external light (such as vehicle lights or streetlights), improving the visibility of the pedal and preventing pedestrians from colliding with the pedal at night.

[0061] See also Figure 2 , Figure 3 The retractable pedal 2 adopts a two-stage telescopic structure, which includes a fixed base plate 201, a first-stage telescopic plate 202, a second-stage telescopic plate 203, and a drive mechanism 204.

[0062] The fixed base plate 201 is made of stainless steel and is stamped in one piece. Its size is adapted to the installation area below the door 101. The surface is treated with anti-rust and anti-corrosion. It serves as the installation base for the entire retractable pedal 2. Its bottom is attached to the crossbeam of the vehicle chassis to ensure load-bearing strength (it can meet the needs of multiple adult passengers stepping on it at the same time, with a load-bearing weight of not less than 200kg).

[0063] The first-stage telescopic plate 202 is made of aluminum alloy, which is lightweight and high-strength. It is slidably installed in the guide groove of the fixed base plate 201. The guide groove has an embedded structure and is coated with grease to reduce friction during telescopic movement and prevent jamming. The second-stage telescopic plate 203 is also made of aluminum alloy, and is slightly smaller than the first-stage telescopic plate 202. It is slidably installed in the guide groove of the first-stage telescopic plate 202.

[0064] The drive mechanism 204 preferably uses an electric push rod as the drive component (optionally, a servo motor combined with a ball screw structure can also be used). The cylinder end of the electric push rod is fixed to the rear end of the fixed base plate 201 through a hinge seat, and the push rod end is connected to the end of the secondary telescopic plate 203 through the hinge seat.

[0065] Preferably, the height of the upper surface of the retractable step 2 after it is extended is consistent with the height of the platform 6 or the curb. The specific height can be adapted according to the chassis height of different public transportation vehicles (buses, coaches) and the height of the conventional platform 6, and is usually set to 12cm-18cm. This makes the upper surface of the step flush with the road surface of the platform 6, completely eliminating the height difference when getting on and off the vehicle, ensuring that passengers (especially the elderly, children, and people with mobility impairments) can get on and off the vehicle smoothly, and avoiding the risk of stepping into the air or tripping.

[0066] In this invention, the telescopic process of the retractable pedal 2 is as follows: When the control module issues an extension command, the electric push rod is energized and extends, pushing the secondary telescopic plate 203 to move horizontally forward along the guide rail groove of the primary telescopic plate 202. When the secondary telescopic plate 203 moves to its limit position, it drives the primary telescopic plate 202 to extend forward synchronously along the guide rail groove of the fixed base plate 201 until the entire pedal extends to the edge of the platform 6, achieving a smooth connection with the platform 6. When it is necessary to retract, the control module issues a retraction command, the electric push rod is energized and retracts in the opposite direction, pulling the secondary telescopic plate 203 backward. After the secondary telescopic plate 203 is completely retracted into the primary telescopic plate 202, the primary telescopic plate 202 is pulled back into the fixed base plate 201, completing the entire retraction action.

[0067] The vehicle-mounted detection module 3, as the detection component of the present invention, is installed on the vehicle body 1 near the door 101. It is used to detect the relative distance between the vehicle body 1 and the platform 6, as well as to detect obstacles and malfunctions during the extension or retraction of the retractable pedal 2.

[0068] In some embodiments, the vehicle-mounted detection module 3 includes a distance detection unit and an obstacle detection unit, wherein the distance detection unit is used to detect the relative distance between the vehicle body 1 and the platform 6, and the obstacle detection unit is used to detect obstacles and malfunctions in the retractable pedal 2 during the extension or retraction process.

[0069] In some embodiments, the distance detection unit is preferably an ultrasonic sensor or an infrared sensor. Taking an ultrasonic sensor as an example, the transmitting end of the ultrasonic sensor faces the platform 6, and the receiving end is used to receive the reflected signal. By calculating the signal propagation time, the actual distance between the vehicle body 1 and the platform 6 is obtained and transmitted to the control module in real time.

[0070] The obstacle detection unit is preferably an ultrasonic sensor or a photoelectric sensor. Taking a photoelectric sensor as an example, the photoelectric sensor uses a diffuse reflection photoelectric switch, which is installed at the front end and both sides of the retractable pedal 2. When the pedal encounters an obstacle during extension or retraction, the photoelectric switch is blocked and outputs an abnormal signal. At the same time, the obstacle detection unit can also determine whether the system has malfunctioned by detecting changes in the current of the electric push rod (for example, if the electric push rod is stuck, the current will rise sharply, triggering a fault signal).

[0071] Furthermore, the detection signals from the distance detection unit and the obstacle detection unit can be mutually verified. Only when the signals detected by the two units are consistent will the control module execute the corresponding control logic, thus avoiding misjudgment caused by the failure of a single detection unit and further improving detection reliability.

[0072] See Figure 4The control module, as the core control component of the present invention, is equivalent to the "brain" of the entire device. It is electrically connected to the retractable pedal 2 and the vehicle-mounted detection module 3 (distance detection unit and obstacle detection unit). The specific connection method is as follows: the connection is made through a waterproof cable. The cable is arranged along the internal frame of the vehicle body 1 and is covered with a protective sleeve to avoid wire wear and short circuit, and at the same time facilitates later maintenance.

[0073] The control module is preferably installed inside the driver's cab or in the electrical box in the front compartment of the vehicle. This location facilitates wiring and subsequent maintenance, and can effectively prevent rainwater and dust corrosion, ensuring stable operation of the control module.

[0074] In one specific embodiment, the control module adopts an on-board microcontroller (preferably an STM32 series microcontroller) or a PLC controller, which has a pre-stored control program and can execute corresponding control logic based on the signals transmitted by the on-board detection module 3. The specific configuration is as follows:

[0075] (1) Distance judgment and automatic control logic: The control module receives the distance parameters transmitted by the vehicle detection module 3 in real time, analyzes and processes the distance parameters, and judges whether the vehicle body 1 and the platform 6 are within the preset safe distance range. When the judgment result is that they are within the preset safe distance range, the control module immediately outputs a drive signal to control the electric push rod of the retractable pedal 2 to be energized, and drives the retractable pedal 2 to automatically extend to the edge of the platform 6 in the horizontal direction to ensure that the pedal and the platform 6 are accurately connected.

[0076] In some embodiments, the preset safety distance range is 5-15cm. This safety distance range was determined through multiple tests to ensure that the retractable step 2 can accurately connect to the platform 6 after it is extended (avoiding collisions between the vehicle body 1 and the platform 6 due to excessive distance, or failure to connect the step 2 due to excessive distance), and also to ensure that the extension and retraction stroke of the retractable step 2 is reasonable, avoiding insufficient stability of the step 2 after it is extended due to excessive stroke.

[0077] (2) Manual mode switching logic: When the control module determines that the vehicle body 1 and the platform 6 are beyond the preset safe distance range, it immediately cuts off the automatic drive signal of the retractable pedal 2 and controls the retractable pedal 2 to switch to manual control mode. At this time, the retractable pedal 2 cannot extend automatically. The driver needs to control the pedal to extend or retract through the vehicle manual control switch (which can be set on the driver's cab) to avoid the risk of collision or falling off due to the excessive distance causing the pedal to be unable to connect to the platform 6 after extension.

[0078] (3) Obstacle and fault emergency control logic: When the vehicle detection module 3 detects an obstacle (such as a pedestrian, foreign object, platform column, etc.) during the extension or retraction of the retractable pedal 2, or detects a system fault (such as electric push rod jamming, circuit short circuit, detection module failure, etc.), the vehicle detection module 3 will immediately transmit an abnormal signal to the control module. After receiving the abnormal signal, the control module will immediately cut off the drive power of the retractable pedal 2, control the retractable pedal 2 to stop extending or automatically retract (prioritize retracting to a safe position), and trigger an alarm to remind the driver to deal with it in time to avoid equipment damage or safety accidents.

[0079] In some embodiments, the intelligent retractable pedal 2 also includes an alarm notification device, see [link to relevant documentation]. Figure 4 The alarm device is electrically connected to the control module. Its core function is to trigger an audible and visual alarm when an obstacle or malfunction is detected, so as to promptly remind the driver to take action and avoid safety accidents or equipment damage.

[0080] The alarm device is preferably installed in a prominent position on the dashboard so that the driver can quickly notice it; its specific structure includes a buzzer and an audible and visual warning light, which work together.

[0081] The working logic of the alarm device is as follows: when the control module receives the obstacle signal or fault signal transmitted by the vehicle detection module 3, it immediately outputs a trigger signal to the alarm device, the buzzer sounds and the audible and visual warning light flashes; after the driver has dealt with the obstacle or fault, the alarm can be stopped by the manual reset switch on the dashboard, or the alarm will automatically stop when the control module detects that the abnormal signal has disappeared, making it convenient to use.

[0082] In some embodiments, the intelligent retractable pedal 2 also includes a safety locking mechanism, see [link to relevant documentation]. Figure 4 The safety locking mechanism is electrically connected to the control module and works in conjunction with the retractable pedal 2. Its core function is to lock and fix the retractable pedal 2 under the control of the control module after it is extended into place, so as to prevent the pedal from retracting under force and improve the load-bearing stability and safety of the pedal.

[0083] Specifically, the safety locking mechanism preferably adopts an electromagnetic pin-type locking structure, which is installed between the fixed base plate 201 of the retractable pedal 2 and the secondary telescopic plate 203 (i.e., the fitting position after the pedal is extended into place). The specific structure includes an electromagnetic pin, a lock hole, and a limit switch.

[0084] The electromagnetic pin is fixedly installed at the front end of the fixed base plate 201 and electrically connected to the control module, which controls its extension or retraction. A locking hole is located at the corresponding position on the secondary telescopic plate 203, and its size is adapted to the diameter of the electromagnetic pin. When the retractable pedal 2 is fully extended, the electromagnetic pin can be precisely inserted into the locking hole to achieve mechanical locking. A limit switch is installed at the end of the secondary telescopic plate 203 and electrically connected to the control module. When the retractable pedal 2 is fully extended, the limit switch is triggered, transmitting a "fully extended" signal to the control module. Upon receiving the signal, the control module controls the electromagnetic pin to extend and insert into the locking hole, preventing incomplete locking due to the pedal not being fully extended.

[0085] Preferably, the safety locking mechanism also has a manual unlocking function. When the control module malfunctions and cannot unlock automatically, the driver can use the manual unlocking switch on the dashboard to control the electromagnetic pin to retract, ensuring that the pedal can be retracted normally and improving the emergency reliability of the device.

[0086] See Figure 4 , Figure 5 The intelligent retractable pedal 2 also includes a driver's cab radar display screen 7, which is connected to the control module. Its core function is to display the distance between the vehicle body 1 and the platform 6, and to provide prompts through green, yellow and red light effects, so that the driver can intuitively judge whether the vehicle is parked in a suitable position without having to get out of the vehicle to observe, thus improving the convenience of use.

[0087] Specifically, the radar display screen 7 is installed in a visible position on the center console of the driver's dashboard (an area that can be directly observed by the driver's line of sight), embedded inside the dashboard, and adapted to the overall shape of the dashboard.

[0088] The specific working principle of the driver's side radar display screen 7 is as follows: the control module receives distance parameters transmitted by the vehicle-mounted detection module 3 in real time, and controls the display screen to show the corresponding light effects based on the safety status corresponding to the distance parameters. The specific correspondence is as follows:

[0089] Green light effect: When the vehicle body 1 and the platform 6 are within the preset safe distance range (5-15cm), the display screen shows a green light effect and can simultaneously display the specific distance value (such as "10cm"), prompting the driver that "the distance is appropriate and the retractable pedal 2 can work automatically". At this time, the driver does not need to operate, and the device can automatically complete the pedal extension action.

[0090] Yellow light effect: When the distance between the vehicle body 1 and the platform 6 is far (slightly exceeding the upper limit of the safe distance, such as 15-20cm), but the retractable pedal 2 can still be manually extended and operated, the display screen will show a yellow light effect to remind the driver that "the distance is far, but the pedal can still be operated". At this time, the device has switched to manual control mode, and the driver can manually control the pedal to extend according to the actual situation to ensure connection with the platform 6.

[0091] Red light effect: When the distance between the vehicle body 1 and the platform 6 is too far (more than 20cm), the retractable pedal 2 cannot be safely extended (it cannot connect to the platform 6 after being extended, or its stability is insufficient). The display screen will show a red light effect to remind the driver that "the distance is too far and the retractable pedal 2 cannot work automatically". At this time, the driver needs to adjust the vehicle parking position until the display screen shows a green or yellow light effect before controlling the pedal to extend.

[0092] Preferably, the driver's radar display screen 7 can also display the working status of the retractable pedal 2 (such as "extending", "retracting", "locking", "fault"). When the device malfunctions, the display screen will simultaneously show fault prompts (such as "detection module malfunction" "electric push rod stuck"), which will help the driver quickly locate the fault and handle it in a timely manner.

[0093] The age-friendly smart retractable pedals in this vehicle offer the following advantages:

[0094] (1) The core structure is scientifically and rationally designed. The retractable step adopts a two-stage telescopic structure and is precisely matched with the platform height, which completely eliminates the gap and height difference between the vehicle body and the platform, fundamentally solving the safety hazards of passengers stepping into the air or tripping when getting on and off the vehicle. It is especially suitable for the elderly, children and people with mobility difficulties, greatly improving the safety and convenience of public transportation.

[0095] (2) The intelligent control logic is perfect. Through the linkage between the vehicle detection module and the control module, the distance can be automatically detected, the pedal can be automatically extended and retracted, and the manual mode can be flexibly switched. With the three-color light effect prompts of the driver's console radar display screen, the driver does not need to get out of the car to observe, reducing the driver's operating burden and improving the efficiency of vehicle parking and getting on and off.

[0096] (3) The safety protection system is comprehensive, with multiple designs including obstacle detection, system fault detection, sound and light alarm, safety locking mechanism and storage cavity. This not only avoids problems such as equipment collision damage and component corrosion, but also ensures the load-bearing stability of the pedal during use, effectively extending the service life of the device.

[0097] It will be readily understood by those skilled in the art that, without conflict, the above-mentioned preferred solutions can be freely combined and superimposed.

[0098] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An elderly-friendly intelligent retractable pedal for vehicles, characterized in that, include: The retractable step is installed below the door of the vehicle body and can extend and retract horizontally relative to the vehicle body to connect with the platform. The vehicle-mounted detection module is installed on the vehicle body near the door to detect the relative distance between the vehicle body and the platform, as well as to detect obstacles and malfunctions during the extension or retraction of the retractable pedal. The control module is electrically connected to the retractable pedal and the vehicle-mounted detection module, respectively; the control module is configured as follows: Based on the distance parameters detected by the vehicle-mounted detection module, it is determined whether the vehicle body and the platform are within the preset safe distance range; When within a preset safe distance range, the retractable pedal is controlled to automatically extend horizontally to the edge of the platform; When the preset safe distance is exceeded, the retractable pedal is switched to manual control mode. as well as When the vehicle-mounted detection module detects an obstacle or malfunction, it controls the retractable pedal to pause its extension or retract automatically and triggers an alarm.

2. The vehicle-mounted elderly-friendly intelligent retractable pedal according to claim 1, characterized in that, The retractable pedal includes: A fixed base plate is installed under the door of the vehicle body; The first-stage telescopic plate is slidably installed within the fixed base plate; The secondary telescopic plate is slidably installed inside the primary telescopic plate; The drive mechanism is connected to the fixed base plate and the secondary telescopic plate respectively, and is used to drive the secondary telescopic plate and the primary telescopic plate to extend and retract horizontally synchronously.

3. The vehicle-mounted elderly-friendly intelligent retractable pedal according to claim 1, characterized in that, The preset safe distance range is 5-15cm.

4. The vehicle-mounted elderly-friendly intelligent retractable pedal according to claim 1, characterized in that, The vehicle-mounted detection module includes: The distance detection unit is used to detect the relative distance between the vehicle body and the platform; An obstacle detection unit is used to detect obstacles and malfunctions during the extension or retraction of the retractable pedal.

5. The vehicle-mounted elderly-friendly intelligent retractable pedal according to claim 4, characterized in that, The distance detection unit is an ultrasonic sensor or an infrared sensor; and / or, the obstacle detection unit is an ultrasonic sensor or a photoelectric sensor.

6. The vehicle-mounted elderly-friendly intelligent retractable pedal according to claim 1, characterized in that, The control module is an on-board microcontroller or PLC controller, installed inside the vehicle or in the driver's area.

7. The vehicle-mounted elderly-friendly intelligent retractable pedal according to claim 1, characterized in that, The upper surface of the retractable pedal is provided with an anti-slip texture layer or anti-slip strip; and / or, the outer edge of the retractable pedal is provided with an LED light strip or reflective strip.

8. The vehicle-mounted elderly-friendly intelligent retractable pedal according to claim 1, characterized in that, It also includes an alarm notification device, which is electrically connected to the control module and is used to trigger an audible and visual alarm when an obstacle or malfunction is detected.

9. The vehicle-mounted elderly-friendly intelligent retractable pedal according to claim 1, characterized in that, It also includes a safety locking mechanism, which is electrically connected to the control module and cooperates with the retractable pedal. The safety locking mechanism is used to lock and fix the retractable pedal by the control module after the retractable pedal is extended into place.

10. The vehicle-mounted elderly-friendly intelligent retractable pedal according to claim 1, characterized in that, It also includes a driver's cab radar display screen, which is signal-connected to the control module and used to display the distance between the vehicle and the platform, providing prompts through green, yellow, and red light effects. The green light effect corresponds to the vehicle body and the platform being within a preset safe distance range, and the retractable pedal can work automatically. The yellow light effect indicates that the distance between the vehicle body and the platform is far, and the retractable pedal can still be used. The red light effect indicates that the distance between the vehicle and the platform is too far, and the retractable pedal cannot work automatically.

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