A power control system and method for hoisting device

Abstract

The present application discloses a power control system and method for a lifting device. The system acquires activation instructions for the lifting device in real time by setting a remote throttle switch. Once a remote throttle switch signal is generated, it indicates that the lifting device needs to be activated and used. However, under normal circumstances, the truck is in a non-neutral gear. When the non-neutral gear signal is directly transmitted from the neutral gear switch to the engine lifting control unit, the lifting device cannot be successfully activated. However, the neutral gear switch signal is reversed by the reverse switch to obtain a reversed neutral gear signal, that is, the current non-neutral gear signal of the truck is reversed to a neutral gear signal, so that the engine lifting control unit successfully activates the lifting device according to the reversed neutral gear signal. Moreover, since the truck is in a gear-engaging state, it can also provide power for the lifting device, thereby ensuring the normal operation of the lifting device.

Description

Technical Field

[0001] The present application relates to the field of vehicle control technology, and in particular to a power control system and method for a hoisting device. Background Art

[0002] A hoisting device is a hydraulic lifting and telescopic system that can achieve lifting, rotation and hoisting, usually installed on a truck; a truck-mounted crane vehicle is a combination of a hoisting device and a truck, and is one of the multifunctional special vehicles that integrates lifting and transportation. In the truck-mounted crane operation mode, the hoisting device needs to take power from the gearbox during operation, and the gearbox must be in a suitable gear position. However, in the normal start logic of the engine, the engine control unit needs to recognize that the gear position is in neutral before activating the start logic. In other words, with the current normal start logic of the truck, it is impossible to provide power for the hoisting device.

[0003] At present, in order to solve the problem of being unable to provide power for the hoisting device, the neutral switch signal is short-circuited, that is, when the truck is not in neutral, the neutral switch signal still outputs a neutral state, so that the engine control unit can provide power for the hoisting device according to the received neutral state signal when the truck is in gear. However, the method of short-circuiting the neutral switch signal in the prior art will cause the engine control unit to recognize the neutral state signal at any time, thereby causing signal disorder problems for the truck, for example, the engine brake and exhaust brake of the truck cannot be normally activated when the truck is in gear.

[0004] Therefore, in the process of providing power for the hoisting device in the prior art, there is a problem that the signal disorder is caused by the long-term output of the neutral state signal, thereby affecting the driving safety of the truck. Summary of the invention

[0005] In view of this, it is necessary to provide a lifting device power control system and method to solve the problem that in the process of providing power for the lifting device in the prior art, the signal disorder is caused by the long-term output of the neutral state signal, thereby affecting the driving safety of the truck.

[0006] In order to solve the above problems, the present application provides a lifting device power control system, which is applied to a vehicle with a crane, comprising:

[0007] A remote throttle switch, used to generate a remote throttle switch signal;

[0008] A neutral switch, used to obtain a neutral switch signal of the vehicle with a crane, the neutral switch signal includes a neutral signal and a non-neutral signal;

[0009] The inversion switch is connected to the remote throttle switch and the neutral switch respectively, and is used to invert the non-neutral signal according to the remote throttle switch signal to obtain an inverted neutral signal;

[0010] The engine hoisting control unit is connected to the remote throttle switch and the reverse switch respectively, and is used to control the engine to provide power for the hoisting device of the truck crane vehicle according to the remote throttle switch signal and the reverse neutral gear signal.

[0011] Further, the system also includes a parking brake switch connected to the engine hoisting control unit, the parking brake switch being used to obtain a parking brake signal of the vehicle with the crane;

[0012] The engine hoisting control unit is also used to control the engine to provide power for the hoisting device according to the remote throttle switch signal, the parking brake signal and the reverse neutral gear signal.

[0013] Furthermore, the system also includes a main start signal acquisition unit connected to the engine hoisting control unit, the main start signal acquisition unit is used to acquire the main start signal of the vehicle with the crane, and send the main start signal to the engine hoisting control unit;

[0014] A secondary start signal acquisition unit is connected to the engine hoisting control unit, and is used to acquire the secondary start signal of the vehicle with the crane, and send the secondary start signal to the engine hoisting control unit;

[0015] The engine hoisting control unit is also used to control the engine to provide power for the hoisting device according to the remote throttle switch signal, the parking brake signal, the reverse neutral signal, the main start signal and the auxiliary start signal.

[0016] Furthermore, the system also includes a vehicle speed monitoring unit connected to the engine hoisting control unit, the vehicle speed monitoring unit is used to obtain a vehicle speed signal of the vehicle with the crane, and send the vehicle speed signal to the engine hoisting control unit;

[0017] The engine hoisting control unit is also used to control the engine to provide power for the hoisting device according to the remote throttle switch signal, the parking brake signal, the reverse neutral signal, the main start signal, the auxiliary start signal and the vehicle speed signal.

[0018] In order to solve the above problems, the present application also provides a vehicle engine start control method for a truck mounted crane, comprising:

[0019] Get remote throttle switch signal;

[0020] Acquire a neutral switch signal of the vehicle with a crane based on the neutral switch;

[0021] Based on the inversion switch, the neutral switch signal is inverted according to the remote throttle switch signal to obtain an inverted neutral signal;

[0022] The engine hoisting control unit controls the engine to provide power for the hoisting device of the truck crane vehicle according to the remote throttle switch signal and the reverse neutral gear signal.

[0023] Further, the reverse neutral signal includes an original neutral switch signal and a reverse neutral switch signal; the neutral switch signal is reversed according to the remote throttle switch signal based on the reverse switch to obtain the reverse neutral signal, including:

[0024] Determine whether the remote throttle switch signal is in an activated state;

[0025] If yes, the neutral switch signal is converted into an anti-neutral switch signal;

[0026] If not, the neutral switch signal is kept as the original neutral switch signal;

[0027] Among them, the original neutral switch signal and the neutral switch signal are completely consistent.

[0028] Furthermore, the engine hoisting control unit controls the engine to provide power for the hoisting device of the vehicle with a crane according to the remote throttle switch signal and the reverse neutral gear signal, including:

[0029] Determine whether the remote throttle switch signal is in an activated state;

[0030] If not, the engine is controlled to stop providing power to the hoisting device;

[0031] If yes, determine whether the reverse neutral signal is activated;

[0032] When the reverse neutral signal is activated, the engine is controlled to provide power to the hoisting device;

[0033] When the reverse neutral signal is in an inactive state, the engine is controlled to stop providing power to the hoisting device.

[0034] Furthermore, when the reverse neutral signal is in an activated state, controlling the engine to provide power to the hoisting device also includes:

[0035] Acquire a parking brake signal of the vehicle with the crane based on the parking brake switch, and send the parking brake signal to the engine hoisting control unit;

[0036] Determine whether the parking brake signal is in an activated state;

[0037] When the parking brake signal is activated, the engine is controlled to provide power to the lifting device;

[0038] When the parking brake signal is in an inactive state, the engine is controlled to stop providing power to the lifting device.

[0039] Furthermore, when the reverse neutral signal is in an activated state, controlling the engine to provide power to the hoisting device also includes:

[0040] Acquire a main start signal of the vehicle with the truck crane based on the main start signal acquisition unit, and send the main start signal to the engine hoisting control unit;

[0041] Acquire the auxiliary start signal of the vehicle with the crane based on the auxiliary start signal acquisition unit, and send the auxiliary start signal to the engine hoisting control unit;

[0042] When and only when the main start signal is in an inactive state and the auxiliary start signal is in an active state, the engine is controlled to provide power to the hoisting device.

[0043] Furthermore, when the reverse neutral signal is in an activated state, controlling the engine to provide power to the hoisting device also includes:

[0044] Acquire a vehicle speed signal of the vehicle with the crane based on the vehicle speed monitoring unit, and send the vehicle speed signal to the engine hoisting control unit;

[0045] When and only when the vehicle speed signal is zero, the main start signal is in an inactive state, and the auxiliary start signal is in an active state, the engine is controlled to provide power to the hoisting device.

[0046] The beneficial effect of the present application is as follows: the present application provides a lifting device power control system and method, the system obtains the activation instruction of the lifting device in real time by setting a remote throttle switch, once the remote throttle switch signal is generated, it indicates that the lifting device needs to be activated and used, however, under normal circumstances, the truck is in a non-neutral gear, and the lifting device cannot be successfully activated when the non-neutral gear signal is directly transmitted to the engine lifting control unit by the neutral gear switch; and the neutral gear switch signal is reversed by the reverse switch to obtain a reversed neutral gear signal, that is, the current non-neutral gear signal of the truck is reversed to a neutral gear signal, so that the engine lifting control unit successfully activates the lifting device according to the reversed neutral gear signal, and since the truck is in a gear state, it can also provide power for the lifting device, thereby ensuring the normal operation of the lifting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 A schematic diagram of the structure of the first embodiment of the power control system for the hoisting device provided in this application;

[0048] Figure 2 A schematic diagram of the structure of the second embodiment of the power control system for the hoisting device provided in this application;

[0049] Figure 3 A schematic structural diagram of a third embodiment of a power control system for a hoisting device provided in the present application;

[0050] Figure 4 A schematic structural diagram of a fourth embodiment of a power control system for a hoisting device provided in the present application;

[0051] Figure 5 A schematic flow chart of an embodiment of a method for controlling power of a hoisting device provided in the present application;

[0052] Figure 6 A schematic diagram of a flow chart of an embodiment of obtaining a reverse neutral signal provided by the present application;

[0053] Figure 7 A schematic diagram of a flow chart of a first embodiment of providing power for a hoisting device of a truck-mounted crane vehicle provided by the present application;

[0054] Figure 8 A schematic diagram of a flow chart of a second embodiment of providing power for a hoisting device of a truck-mounted crane vehicle provided by the present application;

[0055] Fig. 9 A schematic diagram of a flow chart of a third embodiment of providing power for a hoisting device of a truck-mounted crane vehicle provided by the present application;

[0056] Fig.10 A flow chart of four embodiments of providing power for a lifting device of a truck-mounted crane vehicle provided in this application. DETAILED DESCRIPTION

[0057] The preferred embodiments of the present application are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present application to illustrate the principles of the present application, and are not used to limit the scope of the present application.

[0058] A hoisting device is a hydraulic lifting and telescopic system that can achieve lifting, rotation and hoisting, usually installed on a truck; a truck-mounted crane vehicle is a combination of a hoisting device and a truck, and is one of the multifunctional special vehicles that integrates lifting and transportation. In the truck-mounted crane operation mode, the hoisting device needs to take power from the gearbox during operation, and the gearbox must be in a suitable gear position. However, in the normal start logic of the engine, the engine control unit needs to recognize that the gear position is in neutral before activating the start logic. In other words, with the current normal start logic of the truck, it is impossible to provide power for the hoisting device.

[0059] At present, in order to solve the problem of being unable to provide power for the hoisting device, the neutral switch signal is short-circuited, that is, when the truck is not in neutral, the neutral switch signal still outputs a neutral state, so that the engine control unit can provide power for the hoisting device according to the received neutral state signal when the truck is in gear. However, the method of short-circuiting the neutral switch signal in the prior art will cause the engine control unit to recognize the neutral state signal at any time, thereby causing signal disorder problems for the truck, for example, the engine brake and exhaust brake of the truck cannot be normally activated when the truck is in gear.

[0060] Therefore, in the process of providing power for the hoisting device in the prior art, there is a problem that the signal disorder is caused by the long-term output of the neutral state signal, thereby affecting the driving safety of the truck.

[0061] In order to solve the above problems, the present application provides a power control system and method for a lifting device, which are described in detail below.

[0062] like Figure 1 As shown, Figure 1 This is a schematic diagram of the structure of the first embodiment of the power control system for a hoisting device provided in the present application. The power control system 10 for a hoisting device includes:

[0063] A remote throttle switch 11, used to generate a remote throttle switch signal;

[0064] A neutral switch 12, used to obtain a neutral switch signal of the vehicle with a crane, the neutral switch signal including a neutral signal and a non-neutral signal;

[0065] The inversion switch 13 is connected to the remote throttle switch 11 and the neutral switch 12 respectively, and is used to invert the non-neutral signal according to the remote throttle switch signal to obtain an inverted neutral signal;

[0066] The engine hoisting control unit 14 is connected to the remote throttle switch 11 and the reverse switch 13 respectively, and is used to control the engine to provide power for the hoisting device of the truck crane vehicle according to the remote throttle switch signal and the reverse neutral signal.

[0067] In this embodiment, a remote throttle switch 11 is provided to obtain activation instructions for the lifting device in real time. Once a remote throttle switch signal is generated, it indicates that the lifting device needs to be activated and used. However, under normal circumstances, the truck is not in a neutral position, and the neutral switch 12 cannot successfully activate the lifting device when transmitting a non-neutral signal to the engine lifting control unit 14. The neutral switch signal is reversed by the inversion switch 13 to obtain a reversed neutral signal, that is, the current non-neutral signal of the truck is reversed to a neutral signal, so that the engine lifting control unit 14 successfully activates the lifting device according to the reversed neutral signal, and since the truck is in a gear state, it can also provide power for the lifting device, thereby ensuring the normal operation of the lifting device.

[0068] It should be noted that, currently, when the hoisting device is needed, the hoisting device needs to be started with one button through the remote throttle switch 11. The engine hoisting control unit 14 is a part of the engine start control unit of the vehicle with a crane, and is specifically used to control the engine to provide power for the hoisting device.

[0069] like Figure 1As shown, on the one hand, when the remote throttle switch 11 is in the closed state, the neutral switch 12 is in the normal operating state, and the corresponding instruction is truly sent to the engine hoisting control unit 14 according to the gear state of the truck, that is, when the remote throttle switch 11 is in the closed state, since the replacement condition cannot be met, the inversion switch 13 is equal to being in a non-working state, and the neutral switch signal remains unchanged and is transmitted to the engine hoisting control unit 14; on the other hand, when the remote throttle switch 11 is in the closed state, the inversion switch 13 meets the replacement condition, and the neutral switch signal is inverted to obtain a reversed neutral signal, that is, the gear state signal of the truck is reversed to a neutral state signal, and the reversed neutral state signal is sent to the engine hoisting control unit 14, so as to transmit the neutral signal to the engine hoisting control unit 14 when in the gear state, and successfully activate the hoisting device, and because the truck is in the gear state, it can also provide power for the hoisting device, thereby ensuring the normal operation of the hoisting device.

[0070] In a specific embodiment, in order to use the lifting device of the truck-mounted crane vehicle, the user first parks the vehicle and then shifts gears. Next, since the driving position of the truck-mounted crane vehicle and the operating console of the lifting device are in different positions, the user needs to leave the cockpit and move to the operating console of the lifting device on the truck bed. Finally, by turning on the remote throttle switch, the lifting device is successfully activated and powered when in the gear state.

[0071] As a preferred embodiment, in order to avoid the problem of opening the lifting device due to misoperation of the remote throttle switch 11 during normal driving of the vehicle with a crane, Figure 2 As shown, Figure 2 This is a structural diagram of a second embodiment of a power control system for a hoisting device provided in the present application. The power control system 10 for a hoisting device includes:

[0072] A remote throttle switch 11, used to generate a remote throttle switch signal;

[0073] A neutral switch 12, used to obtain a neutral switch signal of the vehicle with a crane, the neutral switch signal including a neutral signal and a non-neutral signal;

[0074] The inversion switch 13 is connected to the remote throttle switch 11 and the neutral switch 12 respectively, and is used to invert the non-neutral signal according to the remote throttle switch signal to obtain an inverted neutral signal;

[0075] The engine hoisting control unit 14 is connected to the remote throttle switch 11 and the reverse switch 13 respectively, and is used to control the engine to provide power for the hoisting device according to the remote throttle switch signal, the parking brake signal and the reverse neutral signal;

[0076] The parking brake switch 15 is connected to the engine hoisting control unit 14 and is used to obtain a parking brake signal of the vehicle with the truck crane.

[0077] In this embodiment, the parking brake switch 15 is provided to obtain the parking brake signal of the truck crane vehicle in real time, thereby determining whether the truck crane vehicle is in motion, and then realizing that only when the truck crane vehicle is in the parking state, the remote throttle switch 11 generates a remote throttle switch signal, and the non-neutral signal transmitted by the neutral switch 12 is reversed to a neutral signal by the reverse switch 13, so that the engine hoisting control unit 14 receives the reversed neutral signal, and successfully activates the hoisting device according to the reversed neutral signal, and because the truck is in the gear state, it can also provide power for the hoisting device, thereby ensuring the normal operation of the hoisting device.

[0078] That is to say, in this embodiment, the parking brake switch 15 effectively avoids the problem of mis-activation of the lifting device due to mis-operation of the remote throttle switch 11 during vehicle driving, thereby avoiding possible safety problems.

[0079] As a preferred embodiment, in order to better ensure the safety of the hoisting device operation and ensure the power stability of the vehicle with the crane, Figure 3 As shown, Figure 3 This is a schematic diagram of the structure of the third embodiment of the power control system for a hoisting device provided in the present application. The power control system 10 for a hoisting device includes:

[0080] A remote throttle switch 11, used to generate a remote throttle switch signal;

[0081] A neutral switch 12, used to obtain a neutral switch signal of the vehicle with a crane, the neutral switch signal including a neutral signal and a non-neutral signal;

[0082] The inversion switch 13 is connected to the remote throttle switch 11 and the neutral switch 12 respectively, and is used to invert the non-neutral signal according to the remote throttle switch signal to obtain an inverted neutral signal;

[0083] The engine hoisting control unit 14 is connected to the remote throttle switch 11 and the reverse switch 13, respectively, and is used to control the engine to provide power for the hoisting device according to the remote throttle switch signal, the parking brake signal, the reverse neutral signal, the main start signal and the auxiliary start signal;

[0084] A parking brake switch 15 is connected to the engine hoisting control unit 14. The parking brake switch 15 is used to obtain a parking brake signal of the vehicle with the crane;

[0085] A main start signal acquisition unit 16 is connected to the engine hoisting control unit 14, and is used to acquire a main start signal of the vehicle with the crane, and send the main start signal to the engine hoisting control unit;

[0086] The auxiliary start signal acquisition unit 17 is connected to the engine hoisting control unit 14. The auxiliary start signal acquisition unit 17 is used to acquire the auxiliary start signal of the vehicle with the truck crane and send the auxiliary start signal to the engine hoisting control unit.

[0087] In this embodiment, the power distribution of the truck crane vehicle is monitored by setting a main start signal acquisition unit 16 and an auxiliary start signal acquisition unit 17, so that when the engine auxiliary start switch specially set to provide energy for the lifting device is in a closed state, the remote throttle switch 11 generates a remote throttle switch signal, and the non-neutral signal transmitted by the neutral switch 12 is reversed to a neutral signal by the inversion switch 13, so that the engine lifting control unit 14 receives the reversed neutral signal, and successfully activates the lifting device according to the reversed neutral signal and the parking brake signal, and because the truck is in a gear state, it can also provide power for the lifting device, thereby ensuring the normal operation of the lifting device.

[0088] Furthermore, although the parking brake signal of the crane vehicle indicates that the crane vehicle is in a parking state when the lifting device is activated, the parking state does not mean that the crane vehicle is stationary, that is, it cannot be guaranteed that the crane vehicle is completely stationary during the lifting operation. Therefore, in order to better ensure the safety of the lifting device operation and the stability of the lifting process, Figure 4 As shown, Figure 4 This is a structural diagram of a fourth embodiment of a power control system for a hoisting device provided in the present application. The power control system 10 for a hoisting device includes:

[0089] A remote throttle switch 11, used to generate a remote throttle switch signal;

[0090] A neutral switch 12, used to obtain a neutral switch signal of the vehicle with a crane, the neutral switch signal including a neutral signal and a non-neutral signal;

[0091] The inversion switch 13 is connected to the remote throttle switch 11 and the neutral switch 12 respectively, and is used to invert the non-neutral signal according to the remote throttle switch signal to obtain an inverted neutral signal;

[0092] The engine hoisting control unit 14 is connected to the remote throttle switch 11 and the reverse switch 13, respectively, and is used to control the engine to provide power for the hoisting device according to the remote throttle switch signal, the parking brake signal, the reverse neutral signal, the main start signal, the auxiliary start signal and the vehicle speed signal;

[0093] A parking brake switch 15 is connected to the engine hoisting control unit 14. The parking brake switch 15 is used to obtain a parking brake signal of the vehicle with the crane;

[0094] A main start signal acquisition unit 16 is connected to the engine hoisting control unit 14, and is used to acquire a main start signal of the vehicle with the crane, and send the main start signal to the engine hoisting control unit;

[0095] A secondary start signal acquisition unit 17 is connected to the engine hoisting control unit 14, and the secondary start signal acquisition unit 17 is used to acquire the secondary start signal of the vehicle with the crane, and send the secondary start signal to the engine hoisting control unit;

[0096] The vehicle speed monitoring unit 18 is connected to the engine hoisting control unit 14. The vehicle speed monitoring unit 18 is used to obtain a vehicle speed signal of the vehicle with the truck crane and send the vehicle speed signal to the engine hoisting control unit.

[0097] In this embodiment, the vehicle speed monitoring unit 18 is provided to monitor the running speed of the truck crane vehicle in real time, so that when and only when the running speed of the truck crane vehicle is zero, the remote throttle switch 11 generates a remote throttle switch signal, and the non-neutral signal transmitted by the neutral switch 12 is reversed to a neutral signal by the inversion switch 13, so that the engine hoisting control unit 14 receives the reversed neutral signal, and successfully activates the hoisting device according to the reversed neutral signal and the parking brake signal, the main start signal and the auxiliary start signal, and because the truck is in a gear state, it can also provide power for the hoisting device, thereby ensuring the normal operation of the hoisting device.

[0098] In this embodiment, by targeted monitoring of the running speed of the truck crane vehicle, the stability and safety of the lifting operation process can be better guaranteed, avoiding safety problems caused by the inability to stop the lifting operation in time due to the tilted parking position of the truck crane vehicle causing the truck crane vehicle to slip.

[0099] Obviously, the main start signal acquisition unit 16 and the auxiliary start signal acquisition unit 17 exist at the same time, and the combination of the parking brake switch 15, the vehicle speed monitoring unit 18, the main start signal acquisition unit 16 and the auxiliary start signal acquisition unit 17 is a selective combination, which can be adaptively combined according to actual conditions and is not limited here.

[0100] In order to solve the above problems, the present application also provides a method for controlling the power of a lifting device, such as Figure 5 As shown, Figure 5 A flow chart of an embodiment of a method for controlling power of a hoisting device provided in the present application includes:

[0101] Step S101: obtaining a remote throttle switch signal;

[0102] Step S102: acquiring a neutral switch signal of the vehicle with a crane based on the neutral switch, where the neutral switch signal includes a neutral signal and a non-neutral signal;

[0103] Step S103: inverting the non-neutral signal according to the remote throttle switch signal based on the inversion switch to obtain an inverted neutral signal;

[0104] Step S104: Based on the engine hoisting control unit, the engine is controlled according to the remote throttle switch signal and the reverse neutral gear signal to provide power for the hoisting device of the truck crane vehicle.

[0105] In this embodiment, first, a remote throttle switch signal is obtained; then, a neutral switch signal of the truck crane vehicle is obtained based on the neutral switch, the neutral switch signal includes a neutral signal and a non-neutral signal, and the non-neutral signal is inverted according to the remote throttle switch signal based on the inversion switch to obtain an inverted neutral signal; finally, the engine is controlled based on the engine hoisting control unit according to the remote throttle switch signal and the inverted neutral signal to provide power for the hoisting device of the truck crane vehicle.

[0106] In this embodiment, by acquiring the remote throttle switch signal, a signal requiring activation and use of the lifting device is acquired, and then after acquiring the neutral switch signal of the truck crane vehicle, the non-neutral signal is inverted according to the remote throttle switch signal through the inversion switch to obtain a reversed neutral signal, that is, the current non-neutral signal of the truck crane vehicle is inverted to a neutral signal, so that the engine lifting control unit successfully activates the lifting device according to the reversed neutral signal, and because the truck is in a gear state, it can also provide power for the lifting device, thereby ensuring the normal operation of the lifting device.

[0107] It should be noted that the reverse neutral signal obtained by the engine hoisting control unit is equivalent to the neutral signal.

[0108] As a preferred embodiment, the reverse neutral gear signal includes an original neutral gear switch signal and a reverse neutral gear switch signal. In step S103, in order to obtain the reverse neutral gear signal, Figure 6 As shown, Figure 6 The flowchart of an embodiment of obtaining a reverse neutral signal provided in the present application includes:

[0109] Step S131: determining whether the remote throttle switch signal is in an activated state;

[0110] Step S132: If yes, then invert the neutral switch signal to an anti-neutral switch signal;

[0111] Step S133: If not, keep the neutral switch signal as the original neutral switch signal;

[0112] Among them, the original neutral switch signal and the neutral switch signal are completely consistent.

[0113] In this embodiment, it is determined whether the remote throttle switch signal is in an activated state; if so, the neutral switch signal is inverted to an anti-neutral switch signal; if not, the neutral switch signal is maintained as the original neutral switch signal.

[0114] That is to say, the neutral switch signal is only reversed when the remote throttle switch signal is in an activated state. Specifically, in general, the vehicle with a truck crane needs to keep the gear engaged during the lifting operation, that is, when the remote throttle switch signal is in an activated state, the neutral switch signal is specifically a non-neutral signal. Therefore, the non-neutral signal needs to be reversed to obtain a neutral signal. In other words, once the remote throttle switch signal is in an activated state, the remote throttle switch signal processed by the reverse switch is a neutral signal, so that the engine lifting control unit can successfully activate the lifting device, and because the truck is in a gear engaged state, it can provide power for the lifting device, thereby ensuring the normal operation of the lifting device.

[0115] It should be noted that, in this embodiment, the activation state of the remote throttle switch signal refers to the remote throttle switch being in a closed state. Specifically, in the logic operation process, the activation state represents 1, and the inactivation state represents 0.

[0116] The original neutral switch signal refers to the real signal of whether the vehicle is in neutral obtained directly from the vehicle with the truck crane; when the vehicle is in gear, any gear is fine, then the corresponding signal is a non-neutral signal; only when the vehicle is in neutral, then the corresponding signal is a neutral signal.

[0117] The reverse neutral switch signal refers to a signal opposite to the original neutral switch signal.

[0118] Specifically, when the vehicle is in gear, it is a non-neutral signal and the activation state is 0. If the activation state of the remote throttle switch signal is 1, then the non-neutral signal needs to be inverted to obtain a neutral signal with an activation state of 1. Then, based on this inverted neutral signal with an activation state of 1, the lifting device can be activated.

[0119] However, when the activation state of the remote throttle switch signal is 0, the neutral switch signal of the vehicle is 1 or 0 and does not change.

[0120] As a preferred embodiment, in step S104, in order to control the engine to provide power for the hoisting device of the vehicle with a crane based on the remote throttle switch signal and the reverse neutral gear signal based on the engine hoisting control unit, as shown in FIG. Figure 7 As shown, Figure 7The schematic diagram of the process of providing power for the hoisting device of a vehicle with a truck crane provided in the present application comprises:

[0121] Step S141: determining whether the remote throttle switch signal is in an activated state;

[0122] Step S142: If not, control the engine to stop providing power to the hoisting device;

[0123] Step S143: If yes, determine whether the reverse neutral signal is activated;

[0124] Step S144: when the reverse neutral signal is in an activated state, controlling the engine to provide power to the hoisting device;

[0125] Step S145: When the reverse neutral signal is in an inactive state, the engine is controlled to stop providing power to the hoisting device.

[0126] In this embodiment, first, it is determined whether the remote throttle switch signal is in an activated state; if not, the engine is controlled to stop providing power to the hoisting device; if so, it is determined whether the reverse neutral signal is in an activated state; then, when the reverse neutral signal is in an activated state, the engine is controlled to provide power to the hoisting device; when the reverse neutral signal is in an inactivated state, the engine is controlled to stop providing power to the hoisting device.

[0127] In this embodiment, the activation state of the remote throttle switch signal is first used as the basis for providing power to the hoisting device. Only when the activation state of the remote throttle switch signal is 1, it indicates that the user has the need to activate the hoisting device. Therefore, it is determined whether the conditions for activating the hoisting device are met, that is, it is determined whether the reverse neutral signal is in an activated state. Only when the reverse neutral signal is also 1, the engine hoisting control unit is qualified to provide power for the hoisting.

[0128] As a preferred embodiment, in step S144, when the reverse neutral signal is activated, the engine is controlled to provide power to the hoisting device. However, the vehicle with the crane may not be in the parking state, or the user may forget to pull the handbrake. Therefore, in order to improve the stability and safety of the hoisting process, Figure 8 As shown, Figure 8 The schematic flow chart of the second embodiment of providing power for the hoisting device of a truck-mounted crane vehicle provided by the present application includes:

[0129] Step S1441: acquiring a parking brake signal of the vehicle with the truck crane based on the parking brake switch, and sending the parking brake signal to the engine hoisting control unit;

[0130] Step S1442: determining whether the parking brake signal is activated;

[0131] Step S1443: when the parking brake signal is activated, controlling the engine to provide power to the hoisting device;

[0132] Step S1444: When the parking brake signal is in an inactive state, the engine is controlled to stop providing power to the hoisting device.

[0133] In this embodiment, first, the parking brake signal of the truck crane vehicle is obtained based on the parking brake switch, and the parking brake signal is sent to the engine hoisting control unit; then, it is determined whether the parking brake signal is in an activated state; when the parking brake signal is in an activated state, the engine is controlled to provide power to the hoisting device; when the parking brake signal is in an inactivated state, the engine is controlled to stop providing power to the hoisting device.

[0134] In this embodiment, based on the lifting device of the truck crane vehicle being activated, that is, the lifting device is in operation, the parking brake status of the truck crane vehicle is compared through the parking brake switch, and only when the parking brake signal is in the activated state, that is, the parking brake signal is 1, the lifting device continues to be powered; otherwise, the engine is controlled to stop providing power to the lifting device to avoid safety accidents.

[0135] Furthermore, in step S144, the operating state of the hoisting device can also be controlled by other indicators, such as Fig. 9 As shown, Fig. 9 The schematic flow chart of the third embodiment of providing power for the hoisting device of a truck-mounted crane vehicle provided by the present application includes:

[0136] Step S2441: obtaining a main start signal of the vehicle with the truck crane based on the main start signal acquisition unit, and sending the main start signal to the engine hoisting control unit;

[0137] Step S2442: acquiring the auxiliary start signal of the vehicle with the truck crane based on the auxiliary start signal acquisition unit, and sending the auxiliary start signal to the engine hoisting control unit;

[0138] Step S2443: When and only when the main start signal is in an inactive state and the auxiliary start signal is in an active state, control the engine to provide power to the hoisting device.

[0139] In this embodiment, first, the main start signal of the vehicle with the truck crane is acquired based on the main start signal acquisition unit, and the main start signal is sent to the engine hoisting control unit; then, the secondary start signal of the vehicle with the truck crane is acquired based on the secondary start signal acquisition unit, and the secondary start signal is sent to the engine hoisting control unit; finally, when and only when the main start signal is in an inactive state and the secondary start signal is in an active state, the engine is controlled to provide power for the hoisting device.

[0140] In this embodiment, the control at the engine operation level is achieved by simultaneously detecting the main start signal and the auxiliary start signal of the truck crane. When the engine only provides power for the lifting device, the current state of continuing to provide power for the lifting device is maintained; otherwise, the power supply to the lifting device is stopped.

[0141] Furthermore, in step S144, the operating state of the hoisting device can also be controlled by the vehicle speed, such as Fig.10 As shown, Fig.10 The flowchart of the fourth embodiment of providing power for the hoisting device of a vehicle with a truck crane provided in this application includes:

[0142] Step S3441: obtaining a vehicle speed signal of the vehicle with the crane based on the vehicle speed monitoring unit, and sending the vehicle speed signal to the engine hoisting control unit;

[0143] Step S3442: When and only when the vehicle speed signal is zero, the main start signal is in an inactive state, and the auxiliary start signal is in an active state, control the engine to provide power for the hoisting device.

[0144] In this embodiment, the speed signal of the crane vehicle is obtained based on the speed monitoring unit, and the speed signal is sent to the engine hoisting control unit; when and only when the speed signal is zero, the main start signal is inactive, and the auxiliary start signal is active, the engine is controlled to provide power for the hoisting device. By specifically detecting the speed of the crane vehicle, it is possible to better deal with situations such as the crane vehicle slipping during the hoisting process, thereby just ensuring the safety of the crane vehicle.

[0145] Obviously, the main start signal and the auxiliary start signal need to be obtained at the same time, and the parking brake signal, the vehicle speed signal, and the combination of the main start signal and the auxiliary start signal are selective combinations. Step S144 can be adaptively supplemented according to actual needs to meet the needs of the truck crane vehicle in different situations. The specific combination method is not limited here.

[0146] It should be noted that, in order to better meet the power requirements of the truck crane vehicle during lifting operations, the idling speed of the truck crane vehicle when the lifting device is started is greater than the idling speed of the truck crane vehicle when the lifting device is not started.

[0147] In a specific embodiment, the idle speed of the vehicle with a crane is set to 700 rpm when the lifting device is started, and 600 rpm when the lifting device is not started.

[0148] In other embodiments, the idle speed of the truck crane vehicle may be adaptively set according to actual needs, which is not limited here.

[0149] By setting the remote throttle switch, the activation instruction of the lifting device is obtained in real time. Once the remote throttle switch signal is generated, it means that the lifting device needs to be activated and used. However, under normal circumstances, the truck is not in neutral, and the lifting device cannot be successfully activated when the neutral switch directly transmits the non-neutral signal to the engine lifting control unit; and the neutral switch signal is reversed by the reverse switch to obtain a reversed neutral signal, that is, the current non-neutral signal of the truck is reversed to a neutral signal, so that the engine lifting control unit successfully activates the lifting device according to the reversed neutral signal, and because the truck is in a gear state, it can also provide power for the lifting device, thereby ensuring the normal operation of the lifting device.

[0150] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A power control system for a lifting device, applied to a vehicle with a crane, characterized in that: include: A remote throttle switch, used to generate a remote throttle switch signal; A neutral switch, used to obtain a neutral switch signal of the vehicle with a crane, wherein the neutral switch signal includes a neutral signal and a non-neutral signal; an inversion switch, connected to the remote throttle switch and the neutral switch, respectively, for inverting the non-neutral signal according to the remote throttle switch signal to obtain an inverted neutral signal; The engine hoisting control unit is connected to the remote throttle switch and the reverse switch respectively, and is used to control the engine to provide power for the hoisting device of the truck crane vehicle according to the remote throttle switch signal and the reverse neutral signal.

2. The power control system of the hoisting device according to claim 1, characterized in that: The system further comprises a parking brake switch connected to the engine hoisting control unit, wherein the parking brake switch is used to obtain a parking brake signal of the vehicle with the truck crane; The engine hoisting control unit is further used to control the engine to provide power for the hoisting device according to the remote throttle switch signal, the parking brake signal and the reverse neutral signal.

3. The power control system of the hoisting device according to claim 2, characterized in that: The system further comprises a main start signal acquisition unit connected to the engine hoisting control unit, the main start signal acquisition unit being used to acquire the main start signal of the vehicle with the crane and send the main start signal to the engine hoisting control unit; A secondary start signal acquisition unit is connected to the engine hoisting control unit, and is used to acquire the secondary start signal of the vehicle with the crane, and send the secondary start signal to the engine hoisting control unit; The engine hoisting control unit is also used to control the engine to provide power for the hoisting device according to the remote throttle switch signal, the parking brake signal, the reverse neutral signal, the main start signal and the auxiliary start signal.

4. The power control system of the hoisting device according to claim 3, characterized in that: The system further comprises a vehicle speed monitoring unit connected to the engine hoisting control unit, the vehicle speed monitoring unit being used to obtain a vehicle speed signal of the vehicle with the crane and send the vehicle speed signal to the engine hoisting control unit; The engine hoisting control unit is also used to control the engine to provide power for the hoisting device according to the remote throttle switch signal, the parking brake signal, the reverse neutral signal, the main start signal, the auxiliary start signal and the vehicle speed signal.

5. A method for controlling power of a lifting device, applied to the power control system of a lifting device as claimed in any one of claims 1 to 4, characterized in that: include: Get remote throttle switch signal; Acquire a neutral switch signal of the vehicle with a crane based on the neutral switch; Inverting the neutral switch signal according to the remote throttle switch signal based on an inversion switch to obtain an inverted neutral signal; The engine hoisting control unit controls the engine to provide power for the hoisting device of the truck crane vehicle according to the remote throttle switch signal and the reverse neutral gear signal.

6. The method for controlling power of a hoisting device according to claim 5, characterized in that: The reverse neutral gear signal includes an original neutral gear switch signal and a reverse neutral gear switch signal; The method of inverting the neutral switch signal according to the remote throttle switch signal based on the inversion switch to obtain an inverted neutral signal includes: Determining whether the remote throttle switch signal is in an activated state; If yes, converting the neutral switch signal into an anti-neutral switch signal; If not, keeping the neutral switch signal as the original neutral switch signal; The original neutral switch signal is completely consistent with the neutral switch signal.

7. The method for controlling power of a hoisting device according to claim 6, characterized in that: The engine hoisting control unit controls the engine to provide power for the hoisting device of the vehicle with a crane according to the remote throttle switch signal and the reverse neutral gear signal, including: Determining whether the remote throttle switch signal is in an activated state; If not, controlling the engine to stop providing power to the hoisting device; If yes, determining whether the reverse neutral signal is in an activated state; When the reverse neutral signal is in an activated state, controlling the engine to provide power to the hoisting device; When the reverse neutral signal is in an inactive state, the engine is controlled to stop providing power to the hoisting device.

8. The method for controlling power of a hoisting device according to claim 7, characterized in that: When the reverse neutral signal is in an activated state, controlling the engine to provide power to the hoisting device further comprises: Acquiring a parking brake signal of the vehicle with the truck crane based on a parking brake switch, and sending the parking brake signal to the engine hoisting control unit; determining whether the parking brake signal is in an activated state; When the parking brake signal is in an activated state, controlling the engine to provide power to the hoisting device; When the parking brake signal is in an inactive state, the engine is controlled to stop providing power to the hoisting device.

9. The method for controlling power of a hoisting device according to claim 8, characterized in that: When the reverse neutral signal is in an activated state, controlling the engine to provide power to the hoisting device further comprises: Acquire a main start signal of the vehicle with the truck crane based on a main start signal acquisition unit, and send the main start signal to the engine hoisting control unit; Acquire the auxiliary start signal of the vehicle with the truck crane based on the auxiliary start signal acquisition unit, and send the auxiliary start signal to the engine hoisting control unit; When and only when the main start signal is in an inactive state and the auxiliary start signal is in an active state, the engine is controlled to provide power to the hoisting device.

10. The method for controlling power of a hoisting device according to claim 8, characterized in that: When the reverse neutral signal is in an activated state, controlling the engine to provide power to the hoisting device further comprises: Acquiring a vehicle speed signal of the vehicle with the truck crane based on a vehicle speed monitoring unit, and sending the vehicle speed signal to the engine hoisting control unit; When and only when the vehicle speed signal is zero, the main start signal is in an inactive state, and the auxiliary start signal is in an active state, the engine is controlled to provide power for the hoisting device.

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