CN211570020U - Steering control system of diesel fork lift truck - Google Patents
Steering control system of diesel fork lift truck Download PDFInfo
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- CN211570020U CN211570020U CN202020193956.9U CN202020193956U CN211570020U CN 211570020 U CN211570020 U CN 211570020U CN 202020193956 U CN202020193956 U CN 202020193956U CN 211570020 U CN211570020 U CN 211570020U
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Abstract
The utility model discloses a diesel fork truck steering control system, including engine controlling means, controller, emergent steering switch, hand switch, turn to pipeline pressure switch, main power supply relay and emergent steering device, engine controlling means is connected with the controller, and emergent steering switch, hand switch, turn to pipeline pressure switch and main power supply relay are connected with the controller respectively, and emergent steering device is connected with main power supply relay. According to the steering control system of the diesel fork lift truck, when the controller cannot obtain any engine information through monitoring a conventional steering system and monitoring an engine control device, the situation that the steering pressure is not established and the steering pressure is not started by mistake due to the fact that a host machine is not started or just started is avoided; the emergency steering device can be quickly activated when the engine breaks down, and the problem that the steering pressure disappears and is delayed is solved.
Description
Technical Field
The utility model relates to a vehicle control technical field, in particular to diesel fork truck steering control system.
Background
As the demand for electric power steering for vehicles increases and the degree of automation of steering by electric power becomes higher, the robustness of electronically controlled steering should be improved to ensure the required safety. On the one hand, if steering support is suddenly lacked during driving, the operation of a driver is difficult, and on the other hand, the driver fails to operate the active steering control system during autonomous operation, and the normal operation of the vehicle needs to be maintained by the emergency steering control system so that the vehicle is in a safe state.
At present, the failure mode of the diesel fork truck control power source is that whether the steering power source fails is judged simply through the pressure of a steering pipeline, on one hand, the mode can also mistakenly activate an emergency steering system when the vehicle stops or an engine is just started, and energy waste is caused; on the other hand, the function of activating the emergency steering control system is not closed in the mode, and the relevant industrial regulations are not met, so that the intelligent emergency steering control system is urgently needed in the driving process of the diesel fork truck.
Therefore, how to provide a control system for intelligently judging whether a conventional steering system of a diesel fork lift truck fails is a technical problem to be solved urgently by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a diesel fork truck turns to control system judges whether normal a steering system became invalid through judging rotational speed signal cooperation steering pipeline pressure on engine running state and the bus.
There is a function of manually activating the emergency steering device, such as when the vehicle is stationary, the engine cannot be started, and when it is desired to move, there is usually other vehicle traction, but if the vehicle being towed cannot control the direction of travel, only movement in one direction can be performed. Has wider application than the original emergency steering
For solving the technical problem, the utility model provides a diesel fork truck steering control system, turn to pipeline pressure switch, main power supply relay and emergent steering device including engine controlling means, controller, emergency steering switch, hand switch, turn to, engine controlling means with the controller is connected, emergent steering switch the hand switch turn to pipeline pressure switch with main power supply relay respectively with the controller is connected, just emergent steering device with main power supply relay connects.
Preferably, the engine control device and the controller interact with each other through a bus.
Preferably, the emergency steering switch, the manual switch, the steering pipeline pressure switch and the main power supply relay are respectively connected with the controller through wires.
Preferably, the emergency steering prompting device further comprises an emergency steering prompting lamp connected with the controller.
Preferably, the emergency steering system further comprises a power supply device for supplying power, and the power supply device is respectively connected with the engine control device, the controller, the emergency steering switch, the manual switch and the steering pipeline pressure switch.
Preferably, the power supply device further comprises a fuse arranged on the power supply device.
The utility model provides a diesel fork truck steering control system, including engine controlling means, controller, emergent steering switch, hand switch, turn to pipeline pressure switch, main power supply relay and emergent steering device, engine controlling means is connected with the controller, and emergent steering switch, hand switch, turn to pipeline pressure switch and main power supply relay are connected with the controller respectively, and emergent steering device is connected with main power supply relay. The utility model discloses a fork truck turns to control system, through the control to engine operating condition, conventional steering system control and to engine control device for when the controller can not obtain any engine information, avoid appearing because the host computer does not start or just starts, cause the mistake to start when turning to pressure and not establishing, and simultaneously, when the engine broke down moreover, just can activate emergent steering device rapidly, thereby solved and turned to pressure and disappeared the problem that has the delay, it is more intelligent.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is an electrical schematic diagram of an overall structure according to an embodiment of the present invention.
Wherein, in fig. 1:
the emergency steering control system comprises an engine control device-1, a controller-2, an emergency steering switch-3, a manual switch-4, a steering pipeline pressure switch-5, a main power supply relay-6, an emergency steering device-7, an emergency steering prompting lamp-8, a power supply device-9 and a fuse-10.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, fig. 1 is an electrical schematic diagram of an overall structure according to an embodiment of the present invention.
In a specific embodiment provided by the utility model, mainly include engine control unit 1, controller 2, emergent steering switch 3(S1), manual switch 4(S2), turn to pipeline pressure switch 5(S3), main power supply relay 6(K1) and emergent steering gear 7, engine control unit 1 is connected with controller 2, emergent steering switch 3, manual switch 4, turn to pipeline pressure switch 5 and main power supply relay 6 and be connected with controller 2 respectively, and emergent steering gear 7 is connected with main power supply relay 6.
The emergency steering system comprises an engine control device 1, a manual switch 4, a steering pipeline pressure switch 5, a main power supply relay 6, an emergency steering switch 3, a steering pipeline pressure switch 5 and a main power supply relay 6, wherein the engine control device 1 is used for collecting the running state and the rotating speed of an engine, the emergency steering switch 3 is used for controlling the emergency steering system to be turned on and turned off, the manual switch 4 is used for enabling the controller 2 to forcibly close the main power supply relay 6 and activating the emergency steering device 7, the steering pipeline pressure switch 5 is used for starting the conventional steering system and prompting the controller 2 that the conventional steering system is in a normal working state, the controller 2 is respectively connected with the.
Specifically, in the actual application process, a driver normally drives the diesel fork truck, the driver presses the emergency steering switch 3 to start the emergency steering system in advance to ensure the safety in case of emergency, the controller 2 can acquire the engine speed and the engine running state from the engine control device 1, and when the driver presses the emergency steering switch 3, the emergency steering indicator light 8(L) is turned on to indicate that the emergency steering system is already in the starting state; if the engine is in a running state after a driver starts the engine and the steering pipeline pressure switch 5 is closed after running for a period of time, the controller 2 considers that the conventional steering power source is in a working state, and if the engine is suddenly stopped to cause the controller 2 to be incapable of normally receiving the engine speed and the working state or the conventional steering system is in a fault to cause the steering pipeline pressure switch 5 to be disconnected, the controller 2 enables the main power supply relay 6 to be closed to enable the emergency steering device 7 to be powered on, so that the emergency steering function is activated to enable the driver to normally use the steering function.
It should be noted that, if the driver first presses the emergency steering switch 3, then waits for the emergency steering indicator 8 to light, and then presses the manual switch 4, the controller 2 can be forced to activate the emergency steering device 7 to meet the steering demand in emergency.
It should be further noted that the scheme does not simply depend on the steering pipeline pressure to judge whether the conventional steering system fails, combines the running state of the engine and the rotating speed signal of the engine, and avoids the error starting caused by the fact that the main engine is not started or just started and the steering pressure is not established; when the engine breaks down, the emergency steering device 7 can be quickly activated, so that the problem that the steering pressure disappears and is delayed is solved, and the intelligent steering device is more intelligent; in addition, the scheme is provided with the function switch manual switch 4 for manually activating the emergency steering device 7, for example, when the vehicle is static, the engine cannot be started, and the vehicle needs to be moved, other vehicles usually pull, but if the pulled vehicle cannot control the driving direction, the vehicle can only be moved in one direction, at the moment, if the manual switch 4 is closed, the emergency steering device 7 is activated, the forklift can be controlled to steer, and the emergency steering device is more widely used than the original emergency steering device.
In order to optimize the advantage that the steering control system of the diesel fork lift truck in the above embodiment can perform more intelligent control on the emergency steering system, the engine control device 1 and the controller 2 perform data interaction through a bus. The transmission bus has very fast transmission speed, can transmit engine speed and operating condition to controller 2 fast, and keeps the renewal of data constantly, makes controller 2 can carry out real-time supervision and control emergent device 7 that turns to, has more intelligently, carries out opening and closing of emergent device 7 that turns to more efficiently.
Based on the advantages of more intelligence and high efficiency of the control system, the emergency steering switch 3, the manual switch 4, the steering pipeline pressure switch 5 and the main power supply relay 6 are respectively connected with the controller 2 through leads. When the forklift normally works, not only the state and the rotating speed of the engine but also other information similar to pressure information of a conventional steering pipeline, information interaction between a driver and the emergency steering system and the like are related to the emergency steering system, the information is interacted with the controller 2 through the switch, the emergency steering device 7 is started by the controller 2 when the information is abnormal, the emergency steering device 7 can be timely started and closed from another angle, and the safety of the forklift in the driving process is ensured.
It should be noted that the steering control system of the diesel fork lift truck further comprises an emergency steering indicator light 8 connected with the controller 2. The emergency steering device 7 has two states, one is an on state controlled by the emergency steering switch 3, namely a standby state, the other is an activated state controlled by the main power supply relay 6, the emergency steering switch 3 enables the driver to turn on the emergency steering device 7, the main power supply relay 6 is used for supplying power to the emergency steering device 7 and activating the emergency steering device 7, and the emergency steering prompting lamp 8 is used for prompting the driver that the emergency steering device 7 is in the on but not activated state, namely the emergency steering device 7 is in the normal standby state, so that the driver can be ensured to determine that the emergency steering device 7 has no fault.
Further, the steering control system of the diesel fork lift truck further comprises a power supply device 9 for supplying power, and the power supply device 9 is respectively connected with the engine control device 1, the controller 2, the emergency steering switch 3, the manual switch 4 and the steering pipeline pressure switch 5. The power supply device 9 is a storage battery device of the diesel fork lift truck, supplies power for the engine control device 1, the controller 2 and the emergency steering device 7 through a storage battery of the fork lift truck, avoids the condition of additionally arranging a power supply, and enables the structure of the whole emergency steering system to be simpler.
It should be further noted that the steering control system of the diesel fork lift truck further includes a fuse 10 provided on the power supply device 9. The power system is difficult to avoid the overcurrent condition, and the fuse 10 can ensure that the emergency steering system is not damaged under the condition that the emergency steering system is overcurrent, so that the emergency steering system has longer service life.
The application also discloses an application method of the steering control system of the diesel fork lift truck, which comprises the following steps:
step 1: collecting the rotating speed and the running state of an engine;
in the scheme, the controller 2 performs emergency steering system switching by judging the state of the engine, specifically, the engine control device 1 judges the running state of the engine in real time and acquires the rotating speed of the engine, the rotating speed of the engine is the condition that the controller judges that a normal steering power source is in a working state, and if the engine is suddenly stopped, bus information disappears or the normal steering system fails, the controller 2 jumps to the step 2.
Step 2: and judging whether to start the emergency steering device or not according to the rotating speed and the running state.
The process of judging whether to start the emergency steering device according to the rotating speed and the running state is specifically as follows:
before the controller 2 judges the rotating speed of the engine, firstly, whether the emergency steering switch 3 is opened or not is judged, if the emergency steering switch 3 is not closed, the controller 2 does not turn on the emergency steering device 7, if the emergency steering switch 3 is turned on, the emergency steering device 7 is turned on and an emergency prompt lamp 8 is used for prompting the driver, if the manual switch 4 is turned on, the controller 2 directly controls the main power supply relay 6 to activate the emergency steering device 7, and if the manual switch 4 is not closed, the controller 2 judges whether the engine speed exceeds the idle speed and keeps for 10 seconds, if the engine idle speed exceeds the idle speed and keeps for more than 10 seconds, whether the conventional steering system has a fault or not, the engine signal receiving condition and the host machine operating condition are continuously judged, if the situation does not exist, the controller 2 controls the main power supply relay 6 to be closed, and the emergency steering device 7 is activated.
According to the method, whether a normal steering system fails or not is judged only by means of the pressure of the steering pipeline, the running state of the engine and the rotating speed signal on the bus are combined, if the engine is stopped due to the damage of the engine control device 1, the controller 2 cannot obtain any engine information, the situation that the engine is not started or just started, the steering pressure is not established and the false start is caused is avoided, and when the engine fails, the emergency steering device 7 can be rapidly activated, so that the problem that the steering pressure disappears and is delayed is solved, and the method is more intelligent.
In summary, the steering control system of the diesel fork lift truck provided by this embodiment mainly includes an engine control device, a controller, an emergency steering switch, a manual switch, a steering pipeline pressure switch, a main power supply relay and an emergency steering device, the engine control device is connected with the controller, the emergency steering switch, the manual switch, the steering pipeline pressure switch and the main power supply relay are respectively connected with the controller, and the emergency steering device is connected with the main power supply relay. The utility model discloses a fork truck turns to control system, through the control to engine operating condition, conventional steering system control and to engine control device for when the controller can not obtain any engine information, avoid appearing because the host computer does not start or just starts, cause the mistake to start when turning to pressure and not establishing, and simultaneously, when the engine broke down moreover, just can activate emergent steering device rapidly, thereby solved and turned to pressure and disappeared the problem that has the delay, it is more intelligent. The application also discloses a forklift steering control method, and the emergency steering system is started through the system.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The internal combustion forklift steering control system is characterized by comprising an engine control device (1), a controller (2), an emergency steering switch (3), a manual switch (4), a steering pipeline pressure switch (5), a main power supply relay (6) and an emergency steering device (7), wherein the engine control device (1) is connected with the controller (2), the emergency steering switch (3), the manual switch (4), the steering pipeline pressure switch (5) and the main power supply relay (6) are respectively connected with the controller (2), and the emergency steering device (7) is connected with the main power supply relay (6).
2. The forklift steering control system according to claim 1, wherein the engine control device (1) and the controller (2) interact with each other via a bus.
3. The diesel fork lift truck steering control system of claim 2, characterized in that the emergency steering switch (3), the manual switch (4), the steering line pressure switch (5) and the main power supply relay (6) are connected with the controller (2) by wires, respectively.
4. The forklift steering control system according to claim 1, further comprising an emergency steering indicator light (8) connected to the controller (2).
5. The forklift steering control system according to claim 4, characterized by further comprising a power supply device (9) for supplying power, the power supply device (9) being connected with the engine control device (1), the controller (2), the emergency steering switch (3), the manual switch (4), and the steering line pressure switch (5), respectively.
6. The forklift steering control system according to claim 5, characterized by further comprising a fuse (10) provided on the power supply device (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020193956.9U CN211570020U (en) | 2020-02-21 | 2020-02-21 | Steering control system of diesel fork lift truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020193956.9U CN211570020U (en) | 2020-02-21 | 2020-02-21 | Steering control system of diesel fork lift truck |
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| CN211570020U true CN211570020U (en) | 2020-09-25 |
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| CN202020193956.9U Active CN211570020U (en) | 2020-02-21 | 2020-02-21 | Steering control system of diesel fork lift truck |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111170219A (en) * | 2020-02-21 | 2020-05-19 | 杭叉集团股份有限公司 | Steering control system and method for diesel fork lift truck |
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- 2020-02-21 CN CN202020193956.9U patent/CN211570020U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111170219A (en) * | 2020-02-21 | 2020-05-19 | 杭叉集团股份有限公司 | Steering control system and method for diesel fork lift truck |
| CN111170219B (en) * | 2020-02-21 | 2024-01-26 | 杭叉集团股份有限公司 | Steering control system and method for diesel fork truck |
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