Automatic turning speed limiting device for diesel fork lift truck

Abstract

The utility model provides a diesel fork lift truck turning automatic speed limiting device which comprises a power supply module and a speed limiting control module, the power supply module is connected with the speed limiting control module, the speed limiting control module comprises an electronic accelerator pedal, an angle sensor, a speed sensor, a speed limiting controller and an engine controller ECU, the angle sensor is used for transmitting real-time angle information of a forklift steering wheel to the speed limiting controller, the speed sensor is used for transmitting forklift speed information to the speed limiting controller, and the speed limiting controller is used for receiving a CAN signal output by the electronic accelerator pedal and transmitting the CAN signal to the engine controller ECU. The engine controller ECU is used for adjusting the rotating speed of the engine according to the converted CAN message sent by the speed limiting controller; the utility model has the beneficial effects that the vehicle speed of the whole vehicle can be automatically limited according to the turning angle in the driving process of the vehicle, the accident rate is reduced, and the property safety is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of forklifts, in particular to an automatic turning speed limiting device for internal combustion forklifts. Background Art

[0002] A forklift is an industrial handling vehicle, which refers to various wheeled handling vehicles for loading and unloading, stacking and short-distance transportation of palletized goods. It is often used for the transportation of large objects in warehouses and is usually driven by a fuel engine or battery. As companies pay more attention to safety, in order to improve the safe driving of forklifts and reduce the bumps when the vehicle turns at high speed when transporting valuables, it is necessary to control the speed of the vehicle when turning. However, the existing forklifts are not equipped with automatic speed limiters when turning. Utility Model Content

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide an automatic speed limiter for turning an internal combustion forklift, so as to solve the problem in the prior art that the speed of the vehicle cannot be controlled when turning.

[0004] In order to achieve the above purpose and other related purposes, the utility model provides the following technical solutions:

[0005] An automatic speed limit device for turning an internal combustion forklift comprises: a power supply module and a speed limit control module, wherein the power supply module is connected to the speed limit control module, and the speed limit control module comprises an electronic accelerator pedal, an angle sensor, a speed sensor, a speed limit controller and an engine controller ECU, wherein the angle sensor is used to transmit real-time angle information of a forklift steering wheel to the speed limit controller, the speed sensor is used to transmit vehicle speed information of the forklift to the speed limit controller, the speed limit controller is used to receive a CAN signal output by the electronic accelerator pedal and transmit it to the engine controller ECU, and the engine controller ECU is used to adjust the engine speed according to the converted CAN message sent by the speed limit controller.

[0006] In one embodiment of the utility model, the power module includes a battery, a fuse and a key switch, the positive pole of the battery is connected to one end of the fuse, the negative pole of the battery is grounded, the other end of the fuse is connected to the input end of the key switch, and the output end of the key switch is connected to the speed limit control module.

[0007] In one embodiment of the utility model, the power supply end of the electronic accelerator pedal, the power supply end of the angle sensor, the power supply end of the speed limit controller and the power supply end of the engine controller ECU are all connected to the output end of the key switch.

[0008] In one embodiment of the utility model, the output end of the electronic accelerator pedal, the output end of the angle sensor, and the output end of the speed sensor are connected to the speed limit controller, and the output end of the speed limit controller is connected to the engine controller ECU.

[0009] In one embodiment of the utility model, the electronic accelerator pedal is an accelerator pedal that outputs a CAN signal, the angle sensor is a device that can output the real-time angle of the current vehicle steering wheel, the speed sensor is a device that can output the current vehicle driving speed confidence, and the speed limit controller is a device that can receive and output a CAN signal.

[0010] As described above, the automatic speed limiting device for turning an internal combustion forklift of the utility model has the following beneficial effects:

[0011] The speed limit controller in the utility model determines the running state and speed of the whole vehicle according to the signals output by the angle sensor and the speed sensor, and confirms whether the whole vehicle is in a turning state; if the whole vehicle is in a straight-moving state, the speed limit controller directly sends the received electronic accelerator pedal signal to the engine controller ECU without processing; if the whole vehicle is in a turning state, the speed limit controller processes the received electronic accelerator pedal signal according to the current turning angle of the whole vehicle and then sends it to the engine controller ECU. The speed limit can be set according to customer requirements, and multiple turning speeds can be set. Therefore, the utility model can limit the speed of the whole vehicle according to the turning angle during the driving of the vehicle, thereby reducing the accident rate and property safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 Shown is an overall structural block diagram of the automatic speed limiting device for turning an internal combustion forklift disclosed in an embodiment of the utility model;

[0013] Figure 2 Shown is a circuit schematic diagram of the automatic speed limiting device for turning an internal combustion forklift disclosed in an embodiment of the utility model;

[0014] Figure 3 Shown is a schematic diagram of the structural connection of the automatic speed limiting device for turning an internal combustion forklift disclosed in an embodiment of the utility model.

[0015] Component number description

[0016] 1. Battery; 2. Fuse; 3. Key switch; 4. Electronic accelerator pedal; 5. Engine controller ECU; 6. Angle sensor; 7. Speed ​​limit controller; 8. Speed ​​sensor. DETAILED DESCRIPTION

[0017] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0018] See also Figure 1 The utility model provides an automatic speed limiting device for turning an internal combustion forklift, comprising: a power module and a speed limiting control module. Specifically, the power module is connected to the speed limiting control module.

[0019] See also Figure 2 and Figure 3 The power supply module includes a battery 1, a fuse 2 and a key switch 3, the positive pole of the battery 1 is connected to one end of the fuse 2, the negative pole of the battery 1 is grounded, the other end of the fuse 2 is connected to the input end of the key switch 3, and the output end of the key switch 3 is connected to the speed limit control module, wherein the power supply module supplies power to the speed limit control module.

[0020] The speed limit control module includes an electronic accelerator pedal 4, an angle sensor 6, a speed sensor 8, a speed limit controller 7 and an engine controller ECU5, wherein the angle sensor 6 is used to transmit the real-time angle information of the forklift steering wheel to the speed limit controller 7, the speed sensor 8 is used to transmit the forklift speed information to the speed limit controller 7, the speed limit controller 7 is used to receive the CAN signal output by the electronic accelerator pedal 4 and transmit it to the engine controller ECU5, and the engine controller ECU5 is used to adjust the engine speed according to the converted CAN message sent by the speed limit controller 7;

[0021] The power supply end of the electronic accelerator pedal 4, the power supply end of the angle sensor 6, the power supply end of the speed limit controller 7 and the power supply end of the engine controller ECU5 are all connected to the output end of the key switch 3, the output end of the electronic accelerator pedal 4, the output end of the angle sensor 6, and the output end of the speed sensor 8 are connected to the speed limit controller 7, and the output end of the speed limit controller 7 is connected to the engine controller ECU5, wherein the electronic accelerator pedal 4 is an accelerator pedal that outputs a CAN signal, the angle sensor 6 is a device that can output the real-time angle of the steering wheel of the current vehicle, the speed sensor 8 is a device that can output the current vehicle driving speed confidence, the speed limit controller 7 is a device that can receive and output CAN signals, and all facilities (CAN signals) are connected using twisted shielded pair cables.

[0022] Specifically, when the key switch 3 is powered on, the speed limit controller 7 determines the driving state of the vehicle according to the signals of the angle sensor 6 and the speed sensor 8; determines whether the vehicle is in a turning state according to the signal of the angle sensor 6, and does not limit the speed of the vehicle if it is in a straight state; when the vehicle is in a turning state, the signal of the speed sensor 8 is further judged. When the vehicle speed is less than the set turning speed, the vehicle still runs according to the existing state. When the vehicle speed is greater than the set turning speed, the speed limit controller 7 processes the received signal of the electronic accelerator pedal 4 and sends it to the engine controller ECU5, thereby controlling the operation of the engine, reducing the engine speed accordingly, and reducing the turning speed of the vehicle. Customers can also set the speed limit by themselves according to the working conditions of the factory.

[0023] The speed limit controller 7 in the utility model determines the running state and speed of the whole vehicle according to the signals output by the angle sensor 6 and the speed sensor 8, and confirms whether the whole vehicle is in a turning state; if the whole vehicle is in a straight-moving state, the speed limit controller 7 will directly send the received electronic accelerator pedal 4 signal to the engine controller ECU5 without processing; if the whole vehicle is in a turning state, the speed limit controller 7 will process the received electronic accelerator pedal 4 signal according to the current turning angle of the whole vehicle and then send it to the engine controller ECU5. The speed limit can be set according to customer requirements, and multiple turning speeds can be set. Therefore, the utility model can limit the speed of the whole vehicle according to the turning angle during the driving process of the vehicle, reduce the accident rate, and reduce property safety.

[0024] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. All equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. An automatic speed limiting device for turning an internal combustion forklift, characterized in that: include: A power supply module and a speed limit control module, wherein the power supply module is connected to the speed limit control module, and the speed limit control module comprises an electronic accelerator pedal (4), an angle sensor (6), a speed sensor (8), a speed limit controller (7) and an engine controller ECU (5); The angle sensor (6) is used to transmit the real-time angle information of the forklift steering wheel to the speed limit controller (7), the speed sensor (8) is used to transmit the forklift speed information to the speed limit controller (7), the speed limit controller (7) is used to receive the CAN signal output by the electronic accelerator pedal (4) and transmit it to the engine controller ECU (5), and the engine controller ECU (5) is used to adjust the engine speed according to the converted CAN message sent by the speed limit controller (7).

2. The automatic turning speed limiting device for an internal combustion forklift according to claim 1, characterized in that: The power supply module comprises a battery (1), a fuse (2) and a key switch (3), the positive electrode of the battery (1) is connected to one end of the fuse (2), the negative electrode of the battery (1) is grounded, the other end of the fuse (2) is connected to the input end of the key switch (3), and the output end of the key switch (3) is connected to the speed limit control module.

3. The automatic turning speed limiting device for an internal combustion forklift according to claim 2, characterized in that: The power supply end of the electronic accelerator pedal (4), the power supply end of the angle sensor (6), the power supply end of the speed limit controller (7) and the power supply end of the engine controller ECU (5) are all connected to the output end of the key switch (3).

4. The automatic turning speed limiting device for an internal combustion forklift according to claim 3, characterized in that: The output end of the electronic accelerator pedal (4), the output end of the angle sensor (6), and the output end of the speed sensor (8) are connected to the speed limit controller (7), and the output end of the speed limit controller (7) is connected to the engine controller ECU (5).

5. The automatic turning speed limiting device for an internal combustion forklift according to claim 1, characterized in that: The electronic accelerator pedal (4) is an accelerator pedal that outputs a CAN signal, the angle sensor (6) is a device that can output the current real-time angle of the vehicle's steering wheel, the speed sensor (8) is a device that can output the current vehicle's driving speed, and the speed limit controller (7) is a device that can receive and output a CAN signal.

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