Device and method for realizing power-off braking by adding super-capacitor bank on rear loading vehicle

Abstract

The invention relates to a device and a method for realizing power-off braking by adding a super capacitor bank on a rear loading vehicle, which are characterized in that a super capacitor and a processor control unit are added on the rear loading vehicle or aiming at a robot learner-driven vehicle, a voltage signal at the output end of a vehicle storage battery is detected, and when the detected voltage is lower than an equipment working voltage threshold, the rear loading vehicle is controlled to emergently brake; when the vehicle storage battery is close to a scrapped state and is not replaced in time, the voltage of the storage battery is sharply reduced, and normal power supply of vehicle-mounted equipment is influenced, the technical scheme of the invention can immediately trigger the braking system to ensure the safety of a driver, passengers and the vehicle.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile driving training safety, and in particular to a device and method for adding a supercapacitor group to a post-installed vehicle to realize power-off braking. Background Art

[0002] With the continuous advancement and widespread application of autonomous driving technology around the world, the application of assisted driving and semi-autonomous driving systems in specific scenarios has become more and more common. In the training grounds of driving schools, the introduction of robot training cars provides students with a new way of learning. These robot training cars can not only teach students how to drive while ensuring their safety, but also for novices or students who have not yet obtained a driver's license, safety when practicing alone is particularly important.

[0003] The robot training car is equipped with advanced auxiliary brake mechanisms, which are usually powered by the vehicle's own battery power. However, due to problems such as battery aging, line wear and tear, and omissions in manual inspections, the battery power may gradually decrease. When the battery power is low, the auxiliary brake mechanism may not work properly, which will directly affect the safety of the trainees during practice. Therefore, ensuring the good condition of the battery and related lines, as well as regular and thorough inspections, is essential to ensure the safety of trainees when using the robot training car. Only in this way can the advantages of the robot training car in modern driving training be fully utilized, while ensuring that every student can enjoy the maximum degree of safety protection in the process of learning to drive. Summary of the invention

[0004] In view of the shortcomings of the current related prior art, the present invention provides a device and method for adding a supercapacitor group to a post-installed vehicle to achieve power-off braking, so as to realize the emergency braking function in the power-off state. The technical solution proposed in this patent is optimized for the post-installation scenario to ensure the stability and reliability of the device. Its core purpose is to effectively solve the problem of emergency braking of the vehicle to ensure driving safety when the vehicle battery is low or the battery power output port suddenly loses power.

[0005] To achieve the above-mentioned purpose, the first aspect of the present invention provides a device for adding a supercapacitor group to a post-installed vehicle to realize power-off braking. A supercapacitor and a processor control unit are added to the post-installed vehicle or a robot training vehicle to detect the voltage signal at the output end of the vehicle battery. When the detected voltage is lower than the working voltage threshold of the device, the post-installed vehicle is controlled to brake urgently; specifically, the first or second situation includes: Case 1: including the brake controller and brake motor of the original vehicle; also including the supercapacitor group, switch relay and processor control unit added to the aftermarket vehicle or the robot training vehicle later; After the device is powered on, the battery charges the supercapacitor group, and the switch relay is used to connect or disconnect the power supply circuit of the supercapacitor to the brake motor; On the one hand, the processor control unit is used to detect the output voltage of the battery; on the other hand, when it is detected that the battery voltage signal is abnormal, the processor control unit controls the switch relay to turn on, the supercapacitor group supplies power, and the brake controller controls the brake; Case 2: Including the boost module and servo motor of the original vehicle, and also including the supercapacitor group, switch relay and processor control unit added to the aftermarket vehicle or the robot training vehicle later; After the device is powered on, the battery charges the supercapacitor group through the boost module, and the switch relay is used to connect or disconnect the power supply circuit of the supercapacitor to the servo motor; On the one hand, the processor control unit is used to detect the output voltage of the battery after passing through the boost module; on the other hand, when it is detected that the battery voltage signal is abnormal, the processor control unit controls the switch relay to turn on, the super capacitor group supplies power, and the processor control unit controls the servo motor to brake; Furthermore, it also includes a reset switch. When the supercapacitor group controls the brakes and the maintenance personnel need to move the vehicle, the reset switch is used to release the brake state so as to perform troubleshooting.

[0006] Furthermore, an ideal diode is included, and the ideal diode connected to the supercapacitor group is used to prevent the battery from being charged in reverse.

[0007] Furthermore, it also includes a sampling harness, and the processor control unit collects the battery output terminal voltage in real time through the sampling harness to monitor the voltage status of the equipment.

[0008] The present invention provides a device for adding a supercapacitor group to a post-installed vehicle to realize power-off braking. When the original vehicle does not have a brake controller and a brake motor, the post-installed vehicle is added with a brake controller and a brake motor, and the device configuration of the above situation 1 is adopted for implementation; When the original vehicle does not have a boost module and a servo motor, and the boost module and the servo motor are added to the aftermarket vehicle, the device configuration of the above situation 2 is adopted for implementation.

[0009] The second aspect of the present invention provides a method for adding a supercapacitor group to a post-installed vehicle to achieve power-off braking. The device used in the method includes at least the above-mentioned device, and the specific steps are: S1. Vehicle hardware detection; S2, detecting the voltage threshold of the capacitor bank; S3, real-time collection of battery output voltage and filtering through the algorithm; S4, real-time monitoring of sampling voltage; If the sampled battery output voltage is abnormal, the brake motor or servo motor is controlled to brake urgently.

[0010] Furthermore, the vehicle hardware detection in step S1 includes the following steps: S11, vehicle hardware inspection, including checking whether the vehicle is equipped with a brake controller and a brake motor; S12, vehicle hardware detection, also includes the processor control unit being able to normally control the brake motor after the device is powered on.

[0011] Furthermore, in step S2, after the device is powered on, the processor control unit detects the voltage of the capacitor group. If the voltage is normal, charging is not performed; if the voltage is lower than a threshold, the capacitor group is charged.

[0012] Furthermore, in step S3, after the device is powered on, the processor control unit collects the battery output terminal voltage in real time and filters it through an algorithm to prevent misjudgment.

[0013] Further, in step S4, after the device is powered on, the processor control unit collects and monitors the voltage at the battery output terminal in real time, and continuously detects if the voltage is normal; if the voltage is abnormal, emergency braking is performed; In step S4, after emergency braking, if the fault is cleared, the brake control motor maintains the braking state; if the fault is eliminated, long press the reserved button of the processor control unit for 2 seconds to release the brake; after the equipment is powered on again, continue to detect abnormalities.

[0014] The technical solution implemented by the present invention has at least the following significant advantages: 1. When the vehicle battery is close to being scrapped and is not replaced in time, the battery voltage drops sharply, thereby affecting the normal power supply of the vehicle-mounted equipment, the technical solution of the present invention can immediately trigger the braking system to ensure the safety of the driver and the vehicle.

[0015] 2. If the vehicle battery is overcharged due to human negligence and the power is not turned off during use, the system will quickly activate the brakes once the preset overcharge threshold is reached, effectively preventing further damage to the battery.

[0016] 3. During the use of the vehicle power equipment, if an abnormal short circuit occurs in the equipment, resulting in abnormal voltage of the entire vehicle, when the voltage reaches the set braking threshold, the system will immediately perform the braking operation to ensure vehicle safety.

[0017] 4. When the vehicle is driving, the wiring may be unstable due to vibration and other factors, which may cause abnormal voltage of the whole vehicle. At this time, if the voltage reaches the braking threshold, the system will automatically start the brake to maintain vehicle safety.

[0018] 5. If the vehicle brakes due to abnormal factors, maintenance personnel can release the brakes by pressing and holding the reserved button for 2 seconds after arriving at the scene. After the general fault is eliminated, the vehicle can be safely moved to a suitable area. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a schematic diagram of the present invention of adding a super capacitor group to a vehicle to realize a power-off brake device; Figure 2 This is a second schematic diagram of the present invention for implementing a power-off brake device by adding a supercapacitor group to a vehicle after installation; Figure 3 It is a flow chart of the method of adding a supercapacitor group to a vehicle after installation to realize power-off braking according to the present invention. DETAILED DESCRIPTION

[0021] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are merely examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.

[0022] A first aspect of this embodiment provides a device for adding a supercapacitor group to a post-installed vehicle to achieve power-off braking. A supercapacitor and a processor control unit are added to the post-installed vehicle or a robot training vehicle to detect the voltage signal at the output end of the vehicle battery. When the voltage signal is lower than the operating voltage threshold of the equipment, the post-installed brake motor is controlled to perform emergency braking. This embodiment is adapted to the post-installation solution, and the device is stable and reliable, which completely solves the problem of emergency braking to ensure safety when the vehicle's operating voltage is insufficient, and releases the brake after the fault is rectified.

[0023] like Figure 1 As shown, case 1: including the brake controller and brake motor of the original vehicle; also including the addition of a supercapacitor group, a switch relay and a processor control unit to the aftermarket vehicle or the robot training vehicle; After the device is powered on, the battery charges the supercapacitor group, and the switch relay is used to connect or disconnect the power supply circuit of the supercapacitor to the brake motor; On the one hand, the processor control unit is used to detect the output voltage of the battery; on the other hand, when it is detected that the battery voltage signal is abnormal, the processor control unit controls the switch relay to turn on, the supercapacitor group supplies power, and the brake controller controls the brake; like Figure 2 As shown, case 2: including the boost module and servo motor of the original vehicle, and also including the addition of a supercapacitor group, a switch relay and a processor control unit on the aftermarket vehicle or the robot training vehicle; After the device is powered on, the battery charges the supercapacitor group through the boost module, and the switch relay is used to connect or disconnect the power supply circuit of the supercapacitor to the servo motor; On the one hand, the processor control unit is used to detect the output voltage of the battery after passing through the boost module; on the other hand, when it is detected that the battery voltage signal is abnormal, the processor control unit controls the switch relay to turn on, the super capacitor group supplies power, and the processor control unit controls the servo motor to brake; As a preferred implementation, this embodiment also includes a reset switch. When the supercapacitor group controls the brakes and the maintenance personnel need to move the vehicle, the reset switch is used to release the brake state so as to perform troubleshooting.

[0024] As a preferred implementation, this embodiment also includes an ideal diode, and the ideal diode connected to the supercapacitor group is used to prevent the battery from being charged in reverse.

[0025] As a preferred implementation, this embodiment further includes a sampling harness, and the processor control unit collects the voltage at the battery output terminal in real time through the sampling harness to monitor the voltage status of the device.

[0026] This embodiment also provides a device for adding a supercapacitor group to a post-installed vehicle to realize power-off braking. When the original vehicle does not have a brake controller and a brake motor, the post-installed vehicle is added with a brake controller and a brake motor, and the device configuration of the above situation 1 is adopted for implementation; When the original vehicle does not have a boost module and a servo motor, and the boost module and the servo motor are added to the aftermarket vehicle, the device configuration of the above situation 2 is adopted for implementation.

[0027] In the above embodiment, the supercapacitor group is used as an energy storage device. After the device is powered on, the battery charges the supercapacitor group. The unidirectional diode connected to the supercapacitor group prevents the main battery from being charged in reverse. When the voltage signal of the main battery is detected to be abnormal, the supercapacitor group supplies power to control the brake. The purpose of the reset switch is that when the supercapacitor group controls the brake, when the maintenance personnel need to move the vehicle, click the reset switch, the brake motor will be released, and the problem can be checked; The second aspect of the present invention provides a method for adding a supercapacitor group to a post-installed vehicle to achieve power-off braking. The device used in the method includes at least the above-mentioned device, and the specific steps are: S1. Vehicle hardware detection; S2, detecting the voltage threshold of the capacitor bank; S3, real-time collection of battery output voltage and filtering through the algorithm; S4, real-time monitoring of sampling voltage; If the sampled battery output voltage is abnormal, the brake motor or servo motor is controlled to brake urgently.

[0028] As a preferred implementation, in this embodiment, the vehicle hardware detection in step S1 includes the following steps: S11, vehicle hardware inspection, including checking whether the vehicle is equipped with a brake controller and a brake motor; S12, vehicle hardware detection, also includes the processor control unit being able to normally control the brake motor after the device is powered on.

[0029] As a preferred implementation, in step S2 of this embodiment, after the device is powered on, the processor control unit detects the voltage of the capacitor group. If the voltage is normal, charging is not performed; if the voltage is lower than a threshold, the capacitor group is charged.

[0030] As a preferred implementation, in step S3 of the present embodiment, after the device is powered on, the processor control unit collects the battery output terminal voltage in real time and filters it through an algorithm to prevent misjudgment. In step S3, after the device is powered on, the processor control unit collects the battery output terminal voltage in real time and filters it through an algorithm to prevent misjudgment. Algorithm filtering plays a key role in the voltage monitoring process, and its main purpose is to eliminate misjudgments caused by voltage fluctuations, electromagnetic interference or other unexpected factors. Specifically, the algorithm will set a reasonable voltage fluctuation range. When the real-time collected battery output terminal voltage fluctuates within this range, the system considers the voltage to be normal and does not perform any operation. If the voltage fluctuation exceeds this range, the algorithm will further analyze whether the fluctuation is caused by a real abnormal situation, such as insufficient battery power or circuit failure.

[0031] In addition, the algorithm will also make adaptive adjustments based on the characteristics of the battery and the operating status of the vehicle. For example, when the vehicle is in the startup or acceleration phase, the battery output voltage may fluctuate greatly, and the algorithm will adjust the voltage fluctuation range accordingly to avoid misjudgment in these situations. Similarly, when the vehicle is in a steady driving or idling state, the algorithm will tighten the voltage fluctuation range to improve the accuracy of monitoring.

[0032] As a preferred implementation, in step S4 of the present embodiment, after the equipment is powered on, the processor control unit collects and monitors the voltage at the output terminal of the battery in real time, and continuously detects if the voltage is normal; if the voltage is abnormal, emergency braking is performed; in step S4, after emergency braking, if the fault is removed, the brake control motor maintains the braking state; if the fault is removed, long press the reserved button of the processor control unit for 2 seconds to release the brake; after the equipment is powered on again, the abnormality is continuously detected again.

[0033] Although the embodiments of the present invention have been shown and described above, it will be appreciated that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, substitute and vary the above embodiments within the scope of the present invention.

Claims

1. A device for adding a supercapacitor group to a post-installed vehicle to realize power-off braking, characterized in that: In the aftermarket vehicle or robot training vehicle, add a supercapacitor and a processor control unit to detect the voltage signal at the output end of the vehicle battery. When the detected voltage is lower than the device working voltage threshold, control the aftermarket vehicle to brake urgently; specifically, it includes situation 1 or situation 2: Case 1: Including the brake controller and brake motor of the original vehicle; also includes the supercapacitor group, switch relay and processor control unit added to the aftermarket vehicle or robot training vehicle at a later stage; in After the device is powered on, the battery charges the supercapacitor group, and the switch relay is used to connect or disconnect the power supply circuit of the supercapacitor to the brake motor; On the one hand, the processor control unit is used to detect the output voltage of the battery; on the other hand, when it is detected that the battery voltage signal is abnormal, the processor control unit controls the switch relay to turn on, the supercapacitor group supplies power, and the brake controller controls the brake; Case 2: including the boost module and servo motor of the original vehicle, and also including the supercapacitor group, switch relay and processor control unit added to the aftermarket vehicle or the robot training vehicle later; After the device is powered on, the battery charges the supercapacitor group through the boost module, and the switch relay is used to connect or disconnect the power supply circuit of the supercapacitor to the servo motor; On the one hand, the processor control unit is used to detect the output voltage of the battery after passing through the boost module; on the other hand, when an abnormal battery voltage signal is detected, the processor control unit controls the switch relay to turn on, the supercapacitor group supplies power, and the processor control unit controls the servo motor to brake.

2. The device according to claim 1, characterized in that: It also includes a reset switch. When the supercapacitor group controls the brakes and the maintenance personnel need to move the vehicle, the reset switch is used to release the brake state so as to perform troubleshooting.

3. The device according to claim 2, characterized in that: An ideal diode is also included. The ideal diode connected to the supercapacitor group is used to prevent reverse charging of the battery.

4. The device according to claim 1, characterized in that: It also includes a sampling harness, through which the processor control unit collects the voltage at the battery output terminal in real time to monitor the voltage status of the equipment.

5. A device for adding a supercapacitor group to a post-installed vehicle to achieve power-off braking, characterized in that: When the original vehicle does not have a brake controller and a brake motor, the aftermarket vehicle is equipped with a brake controller and a brake motor, and the device configuration of the above situation 1 is adopted for implementation; When the original vehicle does not have a boost module and a servo motor, and the boost module and the servo motor are added to the aftermarket vehicle, the device configuration of the above situation 2 is adopted for implementation.

6. A method for adding a supercapacitor group to a post-installed vehicle to achieve power-off braking, characterized in that: The device used in the method at least includes the device according to any one of claims 1 to 5 above, and the specific steps are: S1. Vehicle hardware detection; S2, detecting the voltage threshold of the capacitor bank; S3, real-time collection of battery output voltage and filtering through the algorithm; S4, real-time monitoring of sampling voltage; If the sampled battery output voltage is abnormal, the brake motor or servo motor is controlled to brake urgently.

7. The method according to claim 5, characterized in that: The vehicle hardware detection in step S1 includes the following steps: S11, vehicle hardware inspection, including checking whether the vehicle is equipped with a brake controller and a brake motor; S12, vehicle hardware detection, also includes the processor control unit being able to normally control the brake motor after the device is powered on.

8. The method according to claim 7, characterized in that: In step S2, after the device is powered on, the processor control unit detects the voltage of the capacitor bank. If the voltage is normal, charging is not performed; if the voltage is lower than a threshold, the capacitor bank is charged.

9. The method according to claim 8, characterized in that: In step S3, after the device is powered on, the processor control unit collects the battery output voltage in real time and filters it through an algorithm to prevent misjudgment.

10. The method according to claim 7, characterized in that: In step S4, after the device is powered on, the processor control unit collects and monitors the voltage at the battery output terminal in real time, and if the voltage is normal, it will be continuously tested again; If the voltage is abnormal, emergency braking is performed; In step S4, after emergency braking, if the fault is cleared, the brake control motor maintains the braking state; if the fault is eliminated, long press the reserved button of the processor control unit for 2 seconds to release the brake; after the equipment is powered on again, continue to detect abnormalities.

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