Explosion-proof rubber-tyred vehicle speed limiting control system and method

Abstract

The invention relates to a speed limiting control system and method for an anti-explosion rubber-tyred vehicle. The system comprises a vehicle speed sensor, a speed limiting device and a speed limiting device, the protection control unit is used for acquiring the vehicle speed data and converting the vehicle speed data into an actually measured vehicle speed value; when the actually measured vehicle speed value is greater than the preset vehicle speed threshold value, outputting overspeed alarm information; when the actually measured vehicle speed value is smaller than or equal to the preset vehicle speed threshold value, constant-speed operation information is output; the locomotive control unit is used for generating speed-limiting control information according to the overspeed alarm information and generating constant-speed control information according to the constant-speed operation information; the accelerator controller is used for adjusting the oil supply amount of an engine of the anti-explosion rubber-tyred vehicle according to the speed limiting control information so as to reduce the running speed of the anti-explosion rubber-tyred vehicle; according to the anti-explosion rubber-tyred vehicle, underground safety accidents caused by too high speed of the anti-explosion rubber-tyred vehicle due to misoperation such as multi-degree accelerator stepping of a driver in a section needing speed reduction can be prevented.

Description

Technical Field

[0001] The invention relates to the technical field of mining vehicle control, and in particular to a speed limiting control system and method for an explosion-proof rubber-tyred vehicle. Background Art

[0002] The explosion-proof rubber-wheeled vehicle is a special transport equipment for underground equipment and material transportation. It is bidirectional and easy to operate. The vehicle is 1.3 meters wide, has strong passing capacity, and can carry up to 5 tons of weight. It is particularly suitable for the transportation of equipment and raw materials in low and narrow tunnels. It is the best choice for underground equipment maintenance and raw material transportation. When the driver drives the explosion-proof rubber-wheeled vehicle in the process of underground transportation, he often makes mistakes in operation, causing the explosion-proof rubber-wheeled vehicle to drive too fast, resulting in underground safety accidents. Summary of the invention

[0003] In order to solve the technical problems in the prior art that the driver's operating error causes the explosion-proof rubber-tyred vehicle to drive too fast, causing underground safety accidents, etc., the present invention provides a speed limit control system and method for an explosion-proof rubber-tyred vehicle.

[0004] The technical solution of the present invention to solve the above technical problems is as follows:

[0005] A speed limit control system for an explosion-proof rubber-wheeled vehicle, comprising:

[0006] The vehicle speed sensor is used to collect the running speed of the explosion-proof rubber-tyred vehicle and obtain the vehicle speed data;

[0007] a protection control unit connected to the vehicle speed sensor, for acquiring the vehicle speed data and converting the vehicle speed data into a measured vehicle speed value; comparing the measured vehicle speed value with a preset vehicle speed threshold value, and outputting overspeed alarm information when the measured vehicle speed value is greater than the preset vehicle speed threshold value; and outputting normal speed operation information when the measured vehicle speed value is less than or equal to the preset vehicle speed threshold value;

[0008] A locomotive control unit, connected to the protection control unit, used to generate speed limit control information according to the overspeed alarm information, and generate normal speed control information according to the normal speed operation information;

[0009] A throttle controller is connected to the locomotive control unit and is used to adjust the fuel supply of the engine of the explosion-proof rubber-tyred vehicle according to the speed limit control information to reduce the travel speed of the explosion-proof rubber-tyred vehicle; and adjust the fuel supply of the engine of the explosion-proof rubber-tyred vehicle according to the normal speed control information and the accelerator pedal control information to adjust the travel speed of the explosion-proof rubber-tyred vehicle; wherein the accelerator pedal control information is the position information of the accelerator pedal of the explosion-proof rubber-tyred vehicle.

[0010] The beneficial effect of the present invention is that the actual vehicle speed is collected by the vehicle speed sensor, and when the actual vehicle speed exceeds the preset value, the throttle controller is used to control the fuel supply, so as to reduce the fuel supply of the engine of the rubber-tyred vehicle, and finally achieve the speed limit control of the rubber-tyred vehicle. It prevents the driver from stepping on the accelerator too much in the area where deceleration is required, causing the explosion-proof rubber-tyred vehicle to speed too fast, causing underground safety accidents.

[0011] Based on the above technical solution, the present invention can also be improved as follows.

[0012] Furthermore, it also includes:

[0013] A camshaft speed sensor is used to collect the speed of the camshaft of the engine of the explosion-proof rubber-tyred vehicle to obtain camshaft speed data;

[0014] A crankshaft speed sensor is used to collect the speed of the crankshaft of the engine of the explosion-proof rubber-tyred vehicle to obtain crankshaft speed data;

[0015] The locomotive control unit is connected to the camshaft speed sensor and the crankshaft speed sensor, and is also used to calculate the speed of the engine of the explosion-proof rubber-tyred vehicle based on the camshaft speed data and the crankshaft speed data to obtain engine speed data; calculate the theoretical driving speed value of the explosion-proof rubber-tyred vehicle based on the engine speed data, and judge whether the explosion-proof rubber-tyred vehicle is slipping based on the theoretical driving speed value and the measured vehicle speed value, and if so, generate the speed limit control information; if not, generate the constant speed control information.

[0016] Furthermore, it also includes:

[0017] A display screen is connected to the locomotive control unit and the protection control unit, and is used to display the vehicle speed data, the overspeed alarm information and the normal speed operation information.

[0018] Furthermore, the locomotive control unit is specifically used to calculate the difference between the theoretical driving speed value and the measured vehicle speed value to obtain an overall speed difference; determine whether the explosion-proof rubber-tyred vehicle is slipping during driving based on the overall speed difference, and if so, generate the speed limit control information; if not, generate the normal speed control information.

[0019] Further, the locomotive control unit is specifically used to determine that the explosion-proof rubber-tyred vehicle is slipping during driving when the overall speed difference is outside the preset speed difference range, and to determine that the explosion-proof rubber-tyred vehicle is not slipping during driving when the overall speed difference is within the preset speed difference range.

[0020] Furthermore, it also includes four wheel speed sensors, each of which is connected to the locomotive control unit, and the four wheel speed sensors are respectively used to collect the speeds of the four wheels of the explosion-proof rubber-tyred vehicle, and correspondingly obtain four wheel speed data;

[0021] The locomotive control unit is also used to determine whether the explosion-proof rubber-tyred vehicle is slipping during driving based on the four wheel speed data, and if so, generate the speed limit control information; if not, generate the normal speed control information.

[0022] Further, the locomotive control unit is specifically used to calculate the linear speed of the four wheels of the explosion-proof rubber-wheeled vehicle according to the four wheel speed data, and obtain four corresponding linear speed values; respectively calculate the difference between the four linear speed values ​​and the measured vehicle speed value, and obtain four corresponding linear speed difference values; determine whether the four linear speed difference values ​​are outside the preset linear speed preset range value, if at least one linear speed difference value is outside the preset linear speed preset range value, then generate the speed limit control information; if the four linear speed difference values ​​are all within the preset linear speed preset range value, then generate the constant speed control information.

[0023] Further, it also includes a first acceleration sensor group and a second acceleration sensor group, the first acceleration sensor group includes a first acceleration sensor and a second acceleration sensor, the second acceleration sensor group includes a third acceleration sensor and a fourth acceleration sensor, the first acceleration sensor, the second acceleration sensor, the third acceleration sensor and the fourth acceleration sensor are all connected to the locomotive control unit; the first acceleration sensor and the second acceleration sensor are respectively located at the two front wheels, the third acceleration sensor and the fourth acceleration sensor are respectively located at the two rear wheels, the two front wheels are the two wheels located at the front of the explosion-proof rubber-tyred vehicle, and the two rear wheels are the two wheels located at the rear of the explosion-proof rubber-tyred vehicle;

[0024] The first acceleration sensor and the second acceleration sensor are used to collect the acceleration of the explosion-proof rubber-wheeled vehicle at the two front wheels, respectively, and obtain a first acceleration value and a second acceleration value accordingly;

[0025] The third acceleration sensor and the fourth acceleration sensor are used to collect the acceleration of the explosion-proof rubber-wheeled vehicle at the two rear wheels, respectively, and obtain the third acceleration value and the fourth acceleration value accordingly;

[0026] The locomotive control unit is specifically used to calculate the difference between the first acceleration value and the second acceleration value to obtain a first acceleration difference; calculate the difference between the third acceleration value and the fourth acceleration value to obtain a second acceleration difference; when the first acceleration difference is less than or equal to the preset acceleration difference and the second acceleration difference is less than or equal to the preset acceleration difference, generate the speed limit control information according to the overspeed alarm information, and generate the normal speed control information according to the normal speed operation information; when the first acceleration difference is greater than the preset acceleration difference or the second acceleration difference is greater than the preset acceleration difference, generate the speed limit control information according to the overspeed alarm information or the normal speed operation information.

[0027] In order to solve the above technical problems, the present invention also provides a speed limit control method for explosion-proof rubber-tyred vehicles, and its specific technical contents are as follows:

[0028] A speed limit control method for an explosion-proof rubber-wheeled vehicle comprises the following steps:

[0029] The speed sensor is used to collect the running speed of the explosion-proof rubber-wheeled vehicle to obtain the speed data;

[0030] Using a protection control unit to obtain the vehicle speed data, and converting the vehicle speed data into a measured vehicle speed value;

[0031] The protection control unit compares the measured vehicle speed value with a preset vehicle speed threshold value, and when the measured vehicle speed value is greater than the preset vehicle speed threshold value, outputs an overspeed alarm message; when the measured vehicle speed value is less than or equal to the preset vehicle speed threshold value, outputs a normal speed running message;

[0032] Using a locomotive control unit to generate speed limit control information according to the overspeed alarm information, and to generate normal speed control information according to the normal speed operation information;

[0033] Using a throttle controller to adjust the fuel supply of the engine of the explosion-proof rubber-tyred vehicle according to the speed limit control information to reduce the travel speed of the explosion-proof rubber-tyred vehicle;

[0034] The throttle controller is used to adjust the fuel supply of the engine of the explosion-proof rubber-tyred vehicle according to the normal speed control information and the throttle pedal control information to adjust the driving speed of the explosion-proof rubber-tyred vehicle; wherein the throttle pedal control information is the position information of the throttle pedal of the explosion-proof rubber-tyred vehicle.

[0035] In order to solve the above technical problems, the present invention also provides an explosion-proof rubber-wheeled vehicle, and its specific technical contents are as follows:

[0036] An explosion-proof rubber-tyred vehicle comprises the above-mentioned explosion-proof rubber-tyred vehicle speed limit control system. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 The structure of a speed limit control system for an explosion-proof rubber-wheeled vehicle according to an embodiment of the present invention is shown in FIG. Figure 1 ;

[0038] Figure 2 The structure of a speed limit control system for an explosion-proof rubber-wheeled vehicle according to an embodiment of the present invention is shown in FIG. Figure 2 ;

[0039] Figure 3 Schematic diagram of the distribution of acceleration sensors in an embodiment of the present invention. DETAILED DESCRIPTION

[0040] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0041] like Figure 1 As shown, this embodiment provides a speed limit control system for an explosion-proof rubber-wheeled vehicle, comprising:

[0042] The vehicle speed sensor is used to collect the running speed of the explosion-proof rubber-tyred vehicle and obtain the vehicle speed data;

[0043] a protection control unit connected to the vehicle speed sensor, for acquiring the vehicle speed data and converting the vehicle speed data into a measured vehicle speed value; comparing the measured vehicle speed value with a preset vehicle speed threshold value, and outputting overspeed alarm information when the measured vehicle speed value is greater than the preset vehicle speed threshold value; and outputting normal speed operation information when the measured vehicle speed value is less than or equal to the preset vehicle speed threshold value;

[0044] A locomotive control unit, connected to the protection control unit, used to generate speed limit control information according to the overspeed alarm information, and generate normal speed control information according to the normal speed operation information;

[0045] A throttle controller is connected to the locomotive control unit and is used to adjust the fuel supply of the engine of the explosion-proof rubber-tyred vehicle according to the speed limit control information to reduce the travel speed of the explosion-proof rubber-tyred vehicle; and adjust the fuel supply of the engine of the explosion-proof rubber-tyred vehicle according to the normal speed control information and the accelerator pedal control information to adjust the travel speed of the explosion-proof rubber-tyred vehicle; wherein the accelerator pedal control information is the position information of the accelerator pedal of the explosion-proof rubber-tyred vehicle.

[0046] The actual vehicle speed is collected through the vehicle speed sensor. When the actual vehicle speed exceeds the preset value, the throttle controller is used to control the fuel supply, so as to reduce the fuel supply of the rubber-tyred vehicle's engine, and finally achieve the speed limit control of the rubber-tyred vehicle. This prevents the driver from stepping on the accelerator too much in the area where deceleration is required, causing the explosion-proof rubber-tyred vehicle to speed too fast and cause underground safety accidents.

[0047] like Figure 2 As shown, in some embodiments, the speed limit control system for explosion-proof rubber-wheeled vehicles further includes:

[0048] A camshaft speed sensor, connected to the locomotive control unit, for collecting the speed of the camshaft of the engine of the explosion-proof rubber-tyred vehicle to obtain camshaft speed data;

[0049] A crankshaft speed sensor, connected to the locomotive control unit, is used to collect the speed of the crankshaft of the engine of the explosion-proof rubber-tyred vehicle to obtain crankshaft speed data;

[0050] The locomotive control unit is connected to the camshaft speed sensor and the crankshaft speed sensor, and is also used to calculate the speed of the engine of the explosion-proof rubber-tyred vehicle based on the camshaft speed data and the crankshaft speed data to obtain engine speed data; calculate the theoretical driving speed value of the explosion-proof rubber-tyred vehicle based on the engine speed data, and judge whether the explosion-proof rubber-tyred vehicle is slipping based on the theoretical driving speed value and the measured vehicle speed value, and if so, generate the speed limit control information; if not, generate the constant speed control information.

[0051] The engine speed can be obtained by calculating the engine speed of the explosion-proof rubber-tyred vehicle through the camshaft speed data and the crankshaft speed data. At the same time, it is also possible to judge whether the engine's valve structure is operating normally through the relationship between the camshaft speed data and the crankshaft speed data. The theoretical vehicle speed can be obtained by calculating the vehicle speed according to the engine speed. By comparing the theoretical vehicle speed with the measured vehicle speed, it can be judged whether the vehicle is slipping. For example, during a downhill slope, if the vehicle slips, the accelerator cannot be stepped on, resulting in a faster speed. Therefore, when it is judged that the vehicle is slipping, the fuel supply is directly limited to improve driving safety.

[0052] In some embodiments, the speed limit control system for explosion-proof rubber-wheeled vehicles further includes:

[0053] A display screen is connected to the locomotive control unit and the protection control unit, and is used to display the vehicle speed data, the overspeed alarm information, and the normal speed operation information. The overspeed alarm information may include overspeed warning information or overspeed prompt, and cooperate with the sound system on the wheel vehicle to broadcast the overspeed alarm. The vehicle speed data, the overspeed alarm information, and the normal speed operation information are displayed on the display screen, so that the driver can understand the operation status of the vehicle in real time according to the display content of the display screen.

[0054] In some embodiments, the locomotive control unit is specifically used to calculate the difference between the theoretical driving speed value and the measured vehicle speed value to obtain an overall speed difference; based on the overall speed difference, determine whether the explosion-proof rubber-tyred vehicle is slipping during driving, and if so, generate the speed limit control information; if not, generate the normal speed control information.

[0055] The locomotive control unit is specifically used to determine that the explosion-proof rubber-tyred vehicle is slipping when the overall speed difference is outside the preset speed difference range, and to determine that the explosion-proof rubber-tyred vehicle is not slipping when the overall speed difference is within the preset speed difference range.

[0056] Since there is a certain difference between the measured vehicle speed and the calculated theoretical vehicle speed, a preset speed difference range value is set. By judging whether the overall speed difference is outside the preset speed difference range value, it is judged whether there is slipping, thereby improving the accuracy of the judgment and improving the safety performance of the wheeled vehicle.

[0057] In some embodiments, the speed limit control system of the explosion-proof rubber-tyred vehicle further includes four wheel speed sensors, each of which is connected to the locomotive control unit, and the four wheel speed sensors are respectively used to collect the speeds of the four wheels of the explosion-proof rubber-tyred vehicle, and correspondingly obtain four wheel speed data;

[0058] The locomotive control unit is also used to determine whether the explosion-proof rubber-tyred vehicle is slipping during driving based on the four wheel speed data, and if so, generate the speed limit control information; if not, generate the normal speed control information.

[0059] In some embodiments, the locomotive control unit is specifically used to calculate the linear speed of the four wheels of the explosion-proof rubber-wheeled vehicle based on the four wheel speed data, and obtain four corresponding linear speed values; respectively calculate the difference between the four linear speed values ​​and the measured vehicle speed value, and obtain four corresponding linear speed difference values; determine whether the four linear speed difference values ​​are outside the preset linear speed preset range value, if at least one linear speed difference value is outside the preset linear speed preset range value, generate the speed limit control information; if the four linear speed difference values ​​are all within the preset linear speed preset range value, generate the constant speed control information.

[0060] By calculating the wheel linear speed to calculate the vehicle speed, we can get the theoretical speed. The difference or difference between the theoretical speed and the measured speed can be used to determine whether the vehicle is slipping. When the vehicle is slipping, you cannot step on the accelerator. If the vehicle is fast, it may not be able to control the speed in time, resulting in a safety accident. If the vehicle is slow and the wheel linear speed has reached the speed limit, the wheel may fall into a mud pit. Stones or wooden strips are often placed on the slipping wheels to increase the friction of the wheels. If the speed limit is set at this time, the vehicle will not be able to get out of the mud pit.

[0061] like Figure 2 and Figure 3As shown, in some embodiments, the speed limit control system of the explosion-proof rubber-tyred vehicle further includes a first acceleration sensor group and a second acceleration sensor group, the first acceleration sensor group includes a first acceleration sensor and a second acceleration sensor, the second acceleration sensor group includes a third acceleration sensor and a fourth acceleration sensor, the first acceleration sensor, the second acceleration sensor, the third acceleration sensor and the fourth acceleration sensor are all connected to the locomotive control unit; the first acceleration sensor and the second acceleration sensor are respectively located at the two front wheels, the third acceleration sensor and the fourth acceleration sensor are respectively located at the two rear wheels, the two front wheels are the two wheels located at the front of the explosion-proof rubber-tyred vehicle, and the two rear wheels are the two wheels located at the rear of the explosion-proof rubber-tyred vehicle.

[0062] The first acceleration sensor and the second acceleration sensor are used to collect the acceleration of the explosion-proof rubber-wheeled vehicle at the two front wheels, respectively, and obtain a first acceleration value and a second acceleration value accordingly;

[0063] The third acceleration sensor and the fourth acceleration sensor are used to collect the acceleration of the explosion-proof rubber-wheeled vehicle at the two rear wheels, respectively, and obtain the third acceleration value and the fourth acceleration value accordingly;

[0064] The locomotive control unit is specifically used to calculate the difference between the first acceleration value and the second acceleration value to obtain a first acceleration difference; calculate the difference between the third acceleration value and the fourth acceleration value to obtain a second acceleration difference; when the first acceleration difference is less than or equal to the preset acceleration difference and the second acceleration difference is less than or equal to the preset acceleration difference, generate the speed limit control information according to the overspeed alarm information, and generate the normal speed control information according to the normal speed operation information; when the first acceleration difference is greater than the preset acceleration difference or the second acceleration difference is greater than the preset acceleration difference, generate the speed limit control information according to the overspeed alarm information or the normal speed operation information.

[0065] By comparing the acceleration difference between the wheels on both sides of the vehicle with the preset acceleration difference, it is determined whether the vehicle is skidding or has the risk of rolling over. When the acceleration difference is greater than the preset acceleration difference, it means that the vehicle has reached the limit value where it will roll over. Therefore, even if the actual vehicle speed does not reach the speed limit requirement, the speed limit is required to prevent the vehicle from rolling over due to acceleration.

[0066] In some other embodiments, a speed limit control method for explosion-proof rubber-tyred vehicles is also provided, which is applied to the above-mentioned speed limit control system for explosion-proof rubber-tyred vehicles, and includes the following steps:

[0067] The speed sensor is used to collect the running speed of the explosion-proof rubber-wheeled vehicle to obtain the speed data;

[0068] Using a protection control unit to obtain the vehicle speed data, and converting the vehicle speed data into a measured vehicle speed value;

[0069] The protection control unit compares the measured vehicle speed value with a preset vehicle speed threshold value, and when the measured vehicle speed value is greater than the preset vehicle speed threshold value, outputs an overspeed alarm message; when the measured vehicle speed value is less than or equal to the preset vehicle speed threshold value, outputs a normal speed running message;

[0070] Using a locomotive control unit to generate speed limit control information according to the overspeed alarm information, and to generate normal speed control information according to the normal speed operation information;

[0071] Using a throttle controller to adjust the fuel supply of the engine of the explosion-proof rubber-tyred vehicle according to the speed limit control information to reduce the travel speed of the explosion-proof rubber-tyred vehicle;

[0072] The throttle controller is used to adjust the fuel supply of the engine of the explosion-proof rubber-tyred vehicle according to the normal speed control information and the throttle pedal control information to adjust the driving speed of the explosion-proof rubber-tyred vehicle; wherein the throttle pedal control information is the position information of the throttle pedal of the explosion-proof rubber-tyred vehicle.

[0073] In some embodiments, the protection control unit compares the measured vehicle speed value with a preset vehicle speed threshold value, and when the measured vehicle speed value is greater than the preset vehicle speed threshold value, outputs an overspeed alarm message; when the measured vehicle speed value is less than or equal to the preset vehicle speed threshold value, outputs a normal speed running message; specifically includes the following steps:

[0074] Using the first acceleration sensor and the second acceleration sensor to respectively collect the acceleration of the explosion-proof rubber-tyred vehicle at the two front wheels, and correspondingly obtain a first acceleration value and a second acceleration value;

[0075] The third acceleration sensor and the fourth acceleration sensor are used to respectively collect the acceleration of the explosion-proof rubber-wheeled vehicle at the two rear wheels, and a third acceleration value and a fourth acceleration value are obtained correspondingly;

[0076] The locomotive control unit is specifically used to calculate the difference between the first acceleration value and the second acceleration value to obtain a first acceleration difference; calculate the difference between the third acceleration value and the fourth acceleration value to obtain a second acceleration difference; when the first acceleration difference is less than or equal to the preset acceleration difference and the second acceleration difference is less than or equal to the preset acceleration difference, generate the speed limit control information according to the overspeed alarm information, and generate the normal speed control information according to the normal speed operation information; when the first acceleration difference is greater than the preset acceleration difference or the second acceleration difference is greater than the preset acceleration difference, generate the normal speed control information according to the overspeed alarm information or the normal speed operation information. Among them, the speed limit control system of the explosion-proof rubber-tyred vehicle also includes the first acceleration sensor group and the second acceleration sensor group, the first acceleration sensor group includes the first acceleration sensor and the second acceleration sensor, the second acceleration sensor group includes the third acceleration sensor and the fourth acceleration sensor, the first acceleration sensor, the second acceleration sensor, the third acceleration sensor and the fourth acceleration sensor are all connected to the locomotive control unit; the first acceleration sensor and the second acceleration sensor are respectively located at the two front wheels, the third acceleration sensor and the fourth acceleration sensor are respectively located at the two rear wheels, the two front wheels are the two wheels located at the front of the explosion-proof rubber-tyred vehicle, and the two rear wheels are the two wheels located at the rear of the explosion-proof rubber-tyred vehicle.

[0077] The embodiment of the present invention collects the actual vehicle speed through the vehicle speed sensor. When the actual vehicle speed exceeds the preset value, the throttle controller is used to control the fuel supply, so as to reduce the fuel supply of the engine of the rubber-tyred vehicle, and finally achieve the speed limit control of the rubber-tyred vehicle. This prevents the driver from stepping on the accelerator too much in the area where deceleration is required, causing the explosion-proof rubber-tyred vehicle to speed too fast, causing underground safety accidents

[0078] In some other embodiments, an explosion-proof rubber-tyred vehicle is further provided, comprising the above-mentioned explosion-proof rubber-tyred vehicle speed limit control system. In this embodiment, the above-mentioned explosion-proof rubber-tyred vehicle speed limit control system is used to limit the speed of the explosion-proof rubber-tyred vehicle to ensure that the explosion-proof rubber-tyred vehicle travels within a suitable speed range.

[0079] 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, improvements, etc. made within the concept and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A speed limit control system for explosion-proof rubber-wheeled vehicles, characterized in that: include: The vehicle speed sensor is used to collect the running speed of the explosion-proof rubber-tyred vehicle and obtain the vehicle speed data; a protection control unit connected to the vehicle speed sensor, for acquiring the vehicle speed data and converting the vehicle speed data into a measured vehicle speed value; comparing the measured vehicle speed value with a preset vehicle speed threshold value, and outputting overspeed alarm information when the measured vehicle speed value is greater than the preset vehicle speed threshold value; and outputting normal speed operation information when the measured vehicle speed value is less than or equal to the preset vehicle speed threshold value; A locomotive control unit, connected to the protection control unit, for generating speed limit control information according to the overspeed alarm information, and generating normal speed control information according to the normal speed operation information; A throttle controller is connected to the locomotive control unit and is used to adjust the fuel supply of the engine of the explosion-proof rubber-tyred vehicle according to the speed limit control information to reduce the travel speed of the explosion-proof rubber-tyred vehicle; and adjust the fuel supply of the engine of the explosion-proof rubber-tyred vehicle according to the normal speed control information and the accelerator pedal control information to adjust the travel speed of the explosion-proof rubber-tyred vehicle; wherein the accelerator pedal control information is the position information of the accelerator pedal of the explosion-proof rubber-tyred vehicle.

2. The speed limit control system for explosion-proof rubber-tyred vehicles according to claim 1 is characterized in that: Also includes: A camshaft speed sensor is used to collect the speed of the camshaft of the engine of the explosion-proof rubber-tyred vehicle to obtain camshaft speed data; A crankshaft speed sensor is used to collect the speed of the crankshaft of the engine of the explosion-proof rubber-tyred vehicle to obtain crankshaft speed data; The locomotive control unit is connected to the camshaft speed sensor and the crankshaft speed sensor, and is also used to calculate the speed of the engine of the explosion-proof rubber-tyred vehicle based on the camshaft speed data and the crankshaft speed data to obtain engine speed data; calculate the theoretical driving speed value of the explosion-proof rubber-tyred vehicle based on the engine speed data, and judge whether the explosion-proof rubber-tyred vehicle is slipping based on the theoretical driving speed value and the measured vehicle speed value, and if so, generate the speed limit control information; if not, generate the constant speed control information.

3. The speed limit control system for explosion-proof rubber-tyred vehicles according to claim 2 is characterized in that: Also includes: A display screen is connected to the locomotive control unit and the protection control unit, and is used to display the vehicle speed data, the overspeed alarm information and the normal speed operation information.

4. The speed limit control system for explosion-proof rubber-tyred vehicles according to claim 2 is characterized in that: The locomotive control unit is specifically used to calculate the difference between the theoretical driving speed value and the measured vehicle speed value to obtain an overall speed difference; determine whether the explosion-proof rubber-tyred vehicle is slipping during driving based on the overall speed difference, and if so, generate the speed limit control information; if not, generate the normal speed control information.

5. The speed limit control system for explosion-proof rubber-tyred vehicles according to claim 3 is characterized in that: The locomotive control unit is specifically used to determine that the explosion-proof rubber-tyred vehicle is slipping when the overall speed difference is outside the preset speed difference range, and to determine that the explosion-proof rubber-tyred vehicle is not slipping when the overall speed difference is within the preset speed difference range.

6. The speed limit control system for explosion-proof rubber-tyred vehicles according to claim 1 is characterized in that: It also includes four wheel speed sensors, each of which is connected to the locomotive control unit, and the four wheel speed sensors are used to collect the speeds of the four wheels of the explosion-proof rubber-tyred vehicle, and obtain four wheel speed data accordingly; The locomotive control unit is also used to determine whether the explosion-proof rubber-tyred vehicle is slipping during driving based on the four wheel speed data, and if so, generate the speed limit control information; if not, generate the normal speed control information.

7. The speed limit control system for explosion-proof rubber-tyred vehicles according to claim 6 is characterized in that: The locomotive control unit is specifically used to calculate the linear speed of the four wheels of the explosion-proof rubber-wheeled vehicle according to the four wheel speed data, and obtain four corresponding linear speed values; respectively calculate the difference between the four linear speed values ​​and the measured vehicle speed value, and obtain four corresponding linear speed difference values; determine whether the four linear speed difference values ​​are outside the preset linear speed preset range value, and if at least one of the linear speed difference values ​​is outside the preset linear speed preset range value, generate the speed limit control information; If the four linear speed differences are all within the preset linear speed range, the constant speed control information is generated.

8. The speed limit control system for explosion-proof rubber-tyred vehicles according to claim 1 is characterized in that: It also includes a first acceleration sensor group and a second acceleration sensor group, the first acceleration sensor group includes a first acceleration sensor and a second acceleration sensor, the second acceleration sensor group includes a third acceleration sensor and a fourth acceleration sensor, the first acceleration sensor, the second acceleration sensor, the third acceleration sensor and the fourth acceleration sensor are all connected to the locomotive control unit; the first acceleration sensor and the second acceleration sensor are respectively located at the two front wheels, the third acceleration sensor and the fourth acceleration sensor are respectively located at the two rear wheels, the two front wheels are the two wheels located at the front of the explosion-proof rubber-tyred vehicle, and the two rear wheels are the two wheels located at the rear of the explosion-proof rubber-tyred vehicle; The first acceleration sensor and the second acceleration sensor are used to collect the acceleration of the explosion-proof rubber-wheeled vehicle at the two front wheels, respectively, and obtain a first acceleration value and a second acceleration value accordingly; The third acceleration sensor and the fourth acceleration sensor are used to collect the acceleration of the explosion-proof rubber-wheeled vehicle at the two rear wheels, respectively, and obtain the third acceleration value and the fourth acceleration value accordingly; The locomotive control unit is specifically used to calculate the difference between the first acceleration value and the second acceleration value to obtain a first acceleration difference; calculate the difference between the third acceleration value and the fourth acceleration value to obtain a second acceleration difference; when the first acceleration difference is less than or equal to the preset acceleration difference and the second acceleration difference is less than or equal to the preset acceleration difference, generate the speed limit control information according to the overspeed alarm information, and generate the normal speed control information according to the normal speed operation information; when the first acceleration difference is greater than the preset acceleration difference or the second acceleration difference is greater than the preset acceleration difference, generate the speed limit control information according to the overspeed alarm information or the normal speed operation information.

9. A speed limit control method for explosion-proof rubber-wheeled vehicles, characterized in that: The steps include: The speed sensor is used to collect the running speed of the explosion-proof rubber-wheeled vehicle to obtain the speed data; Using a protection control unit to obtain the vehicle speed data, and converting the vehicle speed data into a measured vehicle speed value; The protection control unit compares the measured vehicle speed value with a preset vehicle speed threshold value, and when the measured vehicle speed value is greater than the preset vehicle speed threshold value, outputs an overspeed alarm message; when the measured vehicle speed value is less than or equal to the preset vehicle speed threshold value, outputs a normal speed running message; Using a locomotive control unit to generate speed limit control information according to the overspeed alarm information, and to generate normal speed control information according to the normal speed operation information; Using a throttle controller to adjust the fuel supply of the engine of the explosion-proof rubber-tyred vehicle according to the speed limit control information to reduce the travel speed of the explosion-proof rubber-tyred vehicle; The throttle controller is used to adjust the fuel supply of the engine of the explosion-proof rubber-tyred vehicle according to the normal speed control information and the throttle pedal control information to adjust the driving speed of the explosion-proof rubber-tyred vehicle; wherein the throttle pedal control information is the position information of the throttle pedal of the explosion-proof rubber-tyred vehicle.

10. An explosion-proof rubber-wheeled vehicle, characterized in that: It comprises the speed limiting control system of an explosion-proof rubber-tyred vehicle as claimed in any one of claims 1 to 8.

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