CN212148425U - Driving safety control device of diesel fork truck - Google Patents
Driving safety control device of diesel fork truck Download PDFInfo
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- CN212148425U CN212148425U CN202020446963.5U CN202020446963U CN212148425U CN 212148425 U CN212148425 U CN 212148425U CN 202020446963 U CN202020446963 U CN 202020446963U CN 212148425 U CN212148425 U CN 212148425U
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Abstract
The utility model relates to a diesel fork truck driving safety control device, which comprises a controller, its M1 port links to each other with third fuse F3 'S one end, its M2, M3, M4, M5, M6, M7 port respectively with seat switch S2, safety belt switch S3, parking brake switch S4, direction switch S5 advances, well position direction switch S6, the one end one-to-one of direction switch S7 backs links to each other, its M9 port links to each other with the one end of bee calling organ, its M10 port links to each other with the one end of warning light, its M11, M12 port links to each other with speed detecting element, its M13 port links to each other with brake pressure sensor' S one end, its M14, M15 port respectively with back solenoid valve Y2, solenoid valve Y1 one-to-one advances links to each other. When the whole vehicle runs, if the running speed of the whole vehicle exceeds the safe vehicle speed, the warning lamp and the buzzer prompt, the controller outputs a signal to the engine through the CAN bus, and the engine adjusts the rotating speed so as to limit the running speed of the whole vehicle and ensure the safe running of the whole vehicle.
Description
Technical Field
The utility model belongs to the technical field of the fork truck control technique and specifically relates to a diesel fork truck driving safety control device.
Background
At present, the diesel fork lift truck is widely used in various industries around the world as a carrying tool in special working condition environments. Every year, safety accidents in the running process of the forklift occur, and a large amount of casualties and property loss are caused by the accidents. How to effectively avoid the accidents occurring in the running process of the forklift becomes a key index of the safety design of the forklift. At present, in order to ensure the safe driving of the forklift, besides that a driver complies with safety regulations and operates proficiently, most of all forklift manufacturers need to design a forklift safe driving control system in an all-around manner, so that the driving safety of the forklift is controlled and protected from the aspect of active safety. The driving safety control device of the diesel fork truck is urgently needed, can fill the blank in the aspect of the driving safety technology of the fork truck in the current market, and provides certain guarantee for the driving safety of the fork truck.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a realize fork truck function of traveling safely, reduce driving safety risk, effectual assurance vehicle driving in-process personnel safety and property safety's diesel fork truck driving safety control device.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a driving safety control device of an internal combustion forklift comprises a controller, wherein the controller adopts a PIC18F25K80 chip, the port M1 of the controller is connected with one end of a third fuse F3, the ports M2, M3, M4, M5, M6 and M7 of the controller are respectively connected with a seat switch S2, a safety belt switch S3, a parking brake switch S4, a forward direction switch S5, a middle direction switch S6 and one end of a backward direction switch S7 in a one-to-one correspondence manner, the port M9 of the controller is connected with one end of a buzzer, the port M10 of the controller is connected with one end of a warning lamp, the ports M11 and M12 of the controller are connected with a vehicle speed detection unit, the port M13 of the controller is connected with one end of a brake pressure sensor, and the ports M14 and M15 of the controller are respectively connected with a backward solenoid valve Y2 and a forward solenoid;
the other ends of the seat switch S2, the safety belt switch S3, the parking brake switch S4, the forward direction switch S5, the middle direction switch S6 and the backward direction switch S7 are connected in parallel, and the parallel end is one end of a common end COM1 connected with a second fuse F2; the other ends of the buzzer and the warning lamp are connected in parallel, and the parallel end is a common end COM2 connected with one end of a fourth fuse F4; the other ends of the second fuse F2, the third fuse F3 and the fourth fuse F4 are connected in parallel and are connected with one end of the starting switch S1 in parallel, the other end of the starting switch S1 is connected with one end of the first fuse F1, and the other end of the first fuse F1 is connected with the positive pole B + of the storage battery.
The PIC18F25K80 chip is connected with an engine through a CAN bus, one end of a coil of the forward solenoid valve Y1 is connected with an M15 port of the PIC18F25K80 chip, one end of a coil of the backward solenoid valve Y2 is connected with an M14 port of the PIC18F25K80 chip, and the other end of the coil of the forward solenoid valve Y1, the other end of the coil of the backward solenoid valve Y2 and the grounding end of the PIC18F25K80 chip are all connected with a negative electrode B-of the storage battery; the moving contact of the forward solenoid valve Y1 and the moving contact of the backward solenoid valve Y2 are both connected with a common end COM2, the static contact of the forward solenoid valve Y1 is connected with a V1 port of the gearbox, and the static contact of the backward solenoid valve Y2 is connected with a V2 port of the gearbox.
The gearbox is respectively mechanically connected with the front axle and the engine, and the front axle is mechanically connected with the brake pressure sensor.
According to the above technical scheme, the beneficial effects of the utility model are that: firstly, determining whether a condition for triggering the whole vehicle to run is met or not by actively detecting the states of a plurality of safety switches, wherein in the running process of the whole vehicle, if the running speed of the whole vehicle exceeds the safe vehicle speed, a warning lamp and a buzzer prompt, a controller outputs a signal to an engine through a CAN bus, and the engine adjusts the rotating speed so as to limit the running speed of the whole vehicle and ensure the safe running of the whole vehicle; secondly, the utility model detects the seat switch signal, the safety belt switch signal and the parking brake switch state, detects whether the operator meets the requirement of safely driving the vehicle, triggers the whole vehicle driving signal on the premise of meeting the requirement, and ensures the safe driving of the whole vehicle; thirdly, the brake is released before the whole vehicle runs by detecting the state of the brake pressure signal, so that the running requirement of the whole vehicle is met; fourthly, whether the running speed of the whole vehicle is within a set range is detected by detecting the vehicle speed value, and the requirement of safe running of the whole vehicle is met.
Drawings
Fig. 1 is a circuit block diagram of the present invention.
Detailed Description
As shown in fig. 1, the driving safety control device of the diesel fork lift truck comprises a controller, wherein the controller adopts a PIC18F25K80 chip, a port M1 of the controller is connected with one end of a third fuse F3, ports M2, M3, M4, M5, M6 and M7 are respectively connected with a seat switch S2, a seat belt switch S3, a parking brake switch S4, a forward direction switch S5, a middle direction switch S6 and one end of a backward direction switch S7 in a one-to-one correspondence manner, a port M9 of the controller is connected with one end of a buzzer 1, a port M10 of the controller is connected with one end of a warning light 2, ports M11 and M12 of the controller are connected with a vehicle speed detection unit, a port M13 of the controller is connected with one end of a brake pressure sensor, and ports M14 and M15 of the controller are respectively connected with a backward electromagnetic valve Y2 and a forward electromagnetic valve Y1;
as shown in fig. 1, the other ends of the seat switch S2, the seatbelt switch S3, the parking brake switch S4, the forward direction switch S5, the neutral direction switch S6 and the reverse direction switch S7 are connected in parallel, and the parallel end is a common end COM1 connected to one end of a second fuse F2; the other ends of the buzzer 1 and the warning lamp 2 are connected in parallel, and the parallel end is a common end COM2 connected with one end of a fourth fuse F4; the other ends of the second fuse F2, the third fuse F3 and the fourth fuse F4 are connected in parallel and are connected with one end of the starting switch S1 in parallel, the other end of the starting switch S1 is connected with one end of the first fuse F1, and the other end of the first fuse F1 is connected with the positive pole B + of the storage battery.
As shown in fig. 1, the PIC18F25K80 chip is connected to the engine through a CAN bus, one end of the coil of the forward solenoid valve Y1 is connected to the M15 port of the PIC18F25K80 chip, one end of the coil of the backward solenoid valve Y2 is connected to the M14 port of the PIC18F25K80 chip, and the other end of the coil of the forward solenoid valve Y1, the other end of the coil of the backward solenoid valve Y2, and the ground terminal of the PIC18F25K80 chip are all connected to the negative electrode B —; the moving contact of the forward solenoid valve Y1 and the moving contact of the backward solenoid valve Y2 are both connected with a common end COM2, the static contact of the forward solenoid valve Y1 is connected with a V1 port of the gearbox, and the static contact of the backward solenoid valve Y2 is connected with a V2 port of the gearbox. The gearbox is respectively mechanically connected with the front axle and the engine, and the front axle is mechanically connected with the brake pressure sensor.
The present invention will be further described with reference to fig. 1.
After the start switch S1 is closed, the battery supplies power to the seat switch S2, the seatbelt switch S3, the parking brake switch S4, the forward direction switch S5, the neutral direction switch S6, and the reverse direction switch S7 through the second fuse F2, supplies power to the controller through the third fuse F3, and supplies power to the buzzer 1, the warning light 2, the forward solenoid valve Y1, and the reverse solenoid valve Y2 through the fourth fuse F4. The controller detects whether the seat switch S2 is closed or not in sequence before the whole vehicle walks, detects that an operator normally sits on the seat, and only when the operator sits on the seat, the seat switch S2 is closed,
the controller starts to detect whether a safety belt switch S3 is disconnected or not and whether an operator fastens a safety belt or not, the controller starts to detect whether a parking brake switch S4 is disconnected or not only when the safety belt switch S3 is in a disconnected state, the controller starts to detect whether a brake pressure sensor detects that a brake pressure value in a front axle is in a set range or not only when the parking brake switch S4 is in a disconnected state, and the controller receives a signal of a forward direction switch S5 (or a backward direction switch S7) and outputs a control signal to trigger a forward electromagnetic valve Y1 (or a backward electromagnetic valve Y2) to work so as to trigger a transmission to work, and the whole vehicle runs in the safe forward direction (or backward). If the above sequence is not performed, even if the controller receives a signal from the forward direction switch S5 (or the reverse direction switch S7), the entire vehicle cannot travel, and the forward direction switch S5 (or the reverse direction switch S7) automatically jumps to the neutral direction switch S6.
The controller detects the speed information input by the speed detection unit when the whole vehicle is in normal running, detects the current speed value, and determines whether the current speed value is within the set safe speed, if so, the whole vehicle keeps normal running; if the current vehicle speed value is not within the set safe vehicle speed, the controller outputs a control signal to drive the buzzer 1 to work to generate a buzzing sound, the warning lamp 2 is lightened to work to remind an operator that the running speed of the whole vehicle exceeds the set safe vehicle speed, and meanwhile, the controller sends a signal to the engine through the CAN bus to trigger the engine to adjust and reduce the current rotating speed so as to reduce the running speed of the whole vehicle and ensure that the whole vehicle runs within the set safe vehicle speed. Here, the safe vehicle speed and the brake pressure value are company-specific setting data.
The storage battery B is used as a system power supply, and when the starting switch S1 is closed, the controller, the buzzer 1 and the warning lamp 2 which are connected with the starting switch S1 are powered on. After the controller is powered on, the system performs self-checking to detect that the signal of the port M2 is 12V voltage and detect that an operator sits on a seat; detecting that the voltage at the port M3 is 0V, and detecting that the operator fastens a safety belt; detecting that the voltage at the port M4 is 0V, and determining that the parking brake switch S4 is released; detecting that service braking meets service requirements within a set range of a signal output by a brake pressure sensor received by an M13 port; detecting that the port signal of the M5 is 12V voltage, detecting that the whole vehicle needs to have a forward requirement, controlling the port M16 of the controller to output a 12V voltage signal, driving a contact of a forward electromagnetic valve Y1 to close, working and outputting a Y1 signal to a V1 port of a gearbox, and enabling the whole vehicle to safely move forward; and detecting that the port signal of the M7 is 12V voltage, detecting that the whole vehicle needs to retreat, controlling the port M15 of the controller to output a 12V voltage signal, driving a contact of a retreat electromagnetic valve Y2 to close to work, outputting a Y2 signal to a V2 port of a gearbox, and safely retreating the whole vehicle. In the safe running of the whole vehicle, the ports M11 and M12 of the controller detect the running speed value of the whole vehicle collected by the vehicle speed detection unit, if the current vehicle speed value is not within the set safe vehicle speed, the controller outputs a control signal to drive the buzzer 1 to work to emit buzzing sound, the warning lamp 2 lights a warning to remind an operator that the running speed of the whole vehicle exceeds the set safe vehicle speed, meanwhile, the controller sends a signal to the engine through a CAN bus, and the engine adjusts and reduces the current rotating speed so as to limit the running speed of the whole vehicle, thereby ensuring the safe running of the whole vehicle.
When the controller is powered on and self-checked, a signal of a port M2 connected to a seat switch S2 is detected to be in an off state, at the moment, a direction switch can only be kept in a middle direction switch S6 state, and the whole vehicle cannot walk; when the controller is powered on and self-checked, a port M2 signal connected to a seat switch S2 is detected to be in a closed state, a port M3 signal connected to a safety belt switch S3 is detected to be in a closed state, at the moment, a direction switch can only be kept in a middle direction switch S6, and the whole vehicle cannot walk; when the controller is powered on and self-checked, a port M2 signal connected to a seat switch S2 is detected to be in a closed state, a port M3 signal connected to a safety belt switch S3 is detected to be in an open state, a port M4 signal connected to a parking brake switch S4 is detected to be in a closed state, at the moment, a direction switch can only be kept in a middle direction switch S6, and the whole vehicle cannot walk; when the controller is powered on and self-checked, a port M2 signal connected to a seat switch S2 is detected to be in a closed state, a port M3 signal connected to a safety belt switch S3 is detected to be in an open state, a port M4 signal connected to a parking brake switch S4 is detected to be in an open state, a port M13 connected to a brake pressure sensor is detected to detect that a brake pressure value in a front axle is not in a set range, at the moment, the direction switch can only be kept in a middle direction switch S6, and the whole vehicle cannot walk; when the controller is powered on and self-tested, the signal of a port M2 connected to a seat switch S2 is detected to be in a closed state, the signal of a port M3 connected to a safety belt switch S3 is detected to be in an open state, the signal of a port M4 connected to a parking brake switch S4 is detected to be in an open state, the signal of a port M13 connected to a brake pressure sensor is detected to be in a set range, and the controller receives the output of a forward direction switch S5 (or a reverse direction switch S7) to control a forward electromagnetic valve Y1 (or a reverse electromagnetic valve Y2) to trigger and control the operation of a gearbox, so that the whole vehicle runs safely. When the vehicle speed value exceeds the set safe vehicle speed value in the running of the whole vehicle, the controller is connected with a port M9 of the buzzer 1 to output a control signal, the buzzer 1 buzzes when working, the port M10 connected with the warning lamp 2 outputs the control signal, the warning lamp 2 lights up to warn an operator that the running speed of the whole vehicle exceeds the safe vehicle speed, meanwhile, the controller sends a signal to the engine through a CAN bus, and the engine adjusts and reduces the current rotating speed so as to reduce the running speed of the whole vehicle and ensure the safe running of the whole vehicle.
To sum up, the utility model discloses a whether detect a plurality of safety switch states of initiative, detect and satisfy and trigger whole car condition of traveling, in whole car traveles, if whole car speed of traveling exceeds safe speed of a motor vehicle, through warning light and bee calling organ suggestion, the engine is given through CAN bus output signal to the controller, thereby the whole car speed of traveling of restriction of engine adjustment rotational speed to guarantee to put in the car safe driving.
Claims (3)
1. The utility model provides a diesel fork truck driving safety control device which characterized in that: the controller adopts a PIC18F25K80 chip, the port of M1 of the controller is connected with one end of a third fuse F3, the ports of M2, M3, M4, M5, M6 and M7 of the controller are respectively connected with a seat switch S2, a safety belt switch S3, a parking brake switch S4, a forward direction switch S5, a middle direction switch S6 and one end of a backward direction switch S7 in a one-to-one correspondence manner, the port of M9 of the controller is connected with one end of a buzzer (1), the port of M10 of the controller is connected with one end of a warning lamp (2), the ports of M11 and M12 of the controller are connected with a vehicle speed detection unit, the port of M9 of the controller is connected with one end of a brake pressure sensor, and the ports of M14 and M15 of the controller are respectively connected with a backward solenoid valve Y2 and a forward solenoid valve Y;
the other ends of the seat switch S2, the safety belt switch S3, the parking brake switch S4, the forward direction switch S5, the middle direction switch S6 and the backward direction switch S7 are connected in parallel, and the parallel end is one end of a common end COM1 connected with a second fuse F2; the other ends of the buzzer (1) and the warning lamp (2) are connected in parallel, and the parallel end is a common end COM2 connected with one end of a fourth fuse F4; the other ends of the second fuse F2, the third fuse F3 and the fourth fuse F4 are connected in parallel and are connected with one end of the starting switch S1 in parallel, the other end of the starting switch S1 is connected with one end of the first fuse F1, and the other end of the first fuse F1 is connected with the positive pole B + of the storage battery.
2. The diesel forklift driving safety control device according to claim 1, characterized in that: the PIC18F25K80 chip is connected with an engine through a CAN bus, one end of a coil of the forward solenoid valve Y1 is connected with an M15 port of the PIC18F25K80 chip, one end of a coil of the backward solenoid valve Y2 is connected with an M14 port of the PIC18F25K80 chip, and the other end of the coil of the forward solenoid valve Y1, the other end of the coil of the backward solenoid valve Y2 and the grounding end of the PIC18F25K80 chip are all connected with a negative electrode B-of the storage battery; the moving contact of the forward solenoid valve Y1 and the moving contact of the backward solenoid valve Y2 are both connected with a common end COM2, the static contact of the forward solenoid valve Y1 is connected with a V1 port of the gearbox, and the static contact of the backward solenoid valve Y2 is connected with a V2 port of the gearbox.
3. The forklift traffic safety control device according to claim 2, characterized in that: the gearbox is respectively mechanically connected with the front axle and the engine, and the front axle is mechanically connected with the brake pressure sensor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020446963.5U CN212148425U (en) | 2020-03-31 | 2020-03-31 | Driving safety control device of diesel fork truck |
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| CN202020446963.5U CN212148425U (en) | 2020-03-31 | 2020-03-31 | Driving safety control device of diesel fork truck |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111422064A (en) * | 2020-03-31 | 2020-07-17 | 安徽合力股份有限公司 | Driving safety control device of diesel fork truck |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111422064A (en) * | 2020-03-31 | 2020-07-17 | 安徽合力股份有限公司 | Driving safety control device of diesel fork truck |
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