Control system and method for actively reducing wind resistance of tractor

Abstract

The invention provides a control system and method for actively reducing wind resistance of a tractor. The control system comprises a vehicle speed collection module, a temperature collection module, a trailer information collection module, a corner information collection module, a central control module, an air inlet grille control module, a flow guide cover control module, an active suspension control module and a sliding saddle control module. Vehicle speed information, engine water temperature information, height information of a trailer, distance information between the trailer and a cab and steering wheel corner information are collected through the vehicle speed collection module, the temperature collection module, the trailer information collection module and the corner information collection module respectively and sent to the central control module to be analyzed and judged, and a control instruction is generated; the air inlet grille control module, the air guide sleeve control module, the active suspension control module and the sliding saddle control module receive control instructions sent by the central control module and control state changes of the air inlet grille control module, the air guide sleeve control module, the active suspension control module and the sliding saddle. The problem that an existing tractor is high in oil consumption due to large wind resistance is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle control, and in particular to a control system and method for actively reducing wind resistance of a tractor. Background Art

[0002] Air resistance has a significant impact on tractors, especially when driving at high speeds. Higher wind resistance leads to more fuel consumption because the engine needs to generate more power to overcome air resistance. When a tractor is driving at a speed of 88 km / h, about half of the horsepower is used to overcome wind resistance. Most of the existing control methods for reducing wind resistance are to control a certain part alone, such as controlling the rise and fall of the deflector alone, and the effect of reducing wind resistance is not obvious. Summary of the invention

[0003] The present invention provides a control system and method for actively reducing wind resistance of a tractor, which are used to solve the problem of high fuel consumption caused by large wind resistance of the existing tractor.

[0004] The present invention provides a control system for actively reducing wind resistance of a tractor, comprising: Vehicle speed acquisition module, temperature acquisition module, trailer information acquisition module, corner information acquisition module, central control module, air intake grille control module, air deflector control module, active suspension control module and sliding saddle control module; The vehicle speed collection module, the temperature collection module, the trailer information collection module and the steering angle information collection module respectively collect vehicle speed information, engine water temperature information, trailer height information, trailer and cab distance information and steering wheel angle information, and send them to the central control module for analysis and judgment to generate control instructions; The air intake grille control module, air deflector control module, active suspension control module and sliding saddle control module receive control instructions sent by the central control module to control the state changes of the air intake grille control module, air deflector control module, active suspension control module and sliding saddle.

[0005] According to a control system for actively reducing wind resistance of a tractor provided by the present invention, the vehicle speed collection module is used to collect vehicle speed information of the tractor, and the vehicle speed collection module is connected to the central control module to transmit the vehicle speed information to the central control module; The temperature acquisition module is used to collect water temperature information of the engine, and the temperature acquisition module is connected to the central control module to transmit the engine water temperature information to the central control module; The trailer information collection module is used to collect the height information of the trailer and the distance information between the trailer and the cab. The trailer information collection module is connected to the central control module to transmit the height information of the trailer and the distance information between the trailer and the cab to the central control module; The angle acquisition module is used to acquire steering wheel angle information. The angle information acquisition module is connected to the central control module to transmit the steering wheel angle information to the central control module.

[0006] According to a control system for actively reducing wind resistance of a tractor provided by the present invention, the central control module compares the received vehicle speed information, water temperature information, trailer height information, trailer and cab distance information and steering wheel angle information with set thresholds respectively to generate control instructions.

[0007] According to a control system for actively reducing wind resistance of a tractor provided by the present invention, the air intake grille control module is used to receive a control instruction from a central control module to adjust the opening and closing of the air intake grille, and feed back a completion signal to the central control module after the control instruction is completed; The deflector control module is used to receive the control command of the central control module to adjust the lifting and lowering of the deflector, and feed back a completion signal to the central control module after the control command is completed; The active suspension control module is used to receive the control command of the central control module to adjust the height of the active suspension, and to feed back the height information of the suspension, and to feed back a completion signal to the central control module after the control command is completed; The sliding saddle control module is used to receive the control command of the central control module to adjust the forward and backward movement of the sliding saddle, and feed back a completion signal to the central control module after the control command is completed.

[0008] According to a control system for actively reducing wind resistance of a tractor provided by the present invention, the system further comprises: A deflector control switch connected to the central control module is used by the driver to manually adjust the height of the deflector; The air intake grille control switch connected to the central control module is used by the driver to manually adjust the opening and closing of the air intake grille; A suspension height control switch connected to the central control module is used by the driver to manually adjust the height of the suspension; The sliding saddle control switch connected to the central control module is used by the driver to manually adjust the front and rear position of the sliding saddle.

[0009] The present invention also provides a control method for actively reducing wind resistance of a tractor, comprising: The vehicle speed collection module, temperature collection module, trailer information collection module and steering angle information collection module respectively collect vehicle speed information, engine water temperature information, trailer height information, trailer and cab distance information and steering wheel angle information, and send them to the central control module; The central control module compares the received information with a preset threshold value and generates a control instruction; Based on the control instruction, the air intake grille control module, the air deflector control module, the active suspension control module and the sliding saddle control module are controlled to perform actions, and after completing the control instruction, a completion signal is fed back to the central control module.

[0010] According to a control method for actively reducing wind resistance of a tractor provided by the present invention, when the engine water temperature information collected by the temperature collection module is lower than a preset temperature range and a command completion signal of an air intake grille control module is received, a first air intake grille control signal is generated through a central control module to control the air intake grille control module to close the air intake grille; When the engine water temperature information collected by the temperature collection module is within the preset temperature range, the vehicle speed is lower than the preset speed range and a command completion signal from the air intake grille control module is received, a second air intake grille control signal is generated through the central control module to control the air intake grille control module to open the air intake grille; If the engine water temperature information collected by the temperature collection module is within the preset temperature range, the vehicle speed is within the preset speed range and a command completion signal from the air intake grille control module is received, a third air intake grille control signal is generated through the central control module to control the air intake grille control module to close the air intake grille; If the engine water temperature information collected by the temperature collection module is higher than the preset temperature space and receives the command completion signal from the air intake grille control module, the fourth air intake grille control signal is generated through the central control module, and the air intake grille control module is controlled to open the air intake grille.

[0011] According to a control method for actively reducing wind resistance of a tractor provided by the present invention, when the vehicle speed information collected by the vehicle speed collection module is within a preset vehicle speed range, the trailer height is higher than a preset height threshold and a command completion signal from a deflector control module is received, a first deflector control signal is generated by a central control module to control the deflector control module to lift the deflector; If the vehicle speed information collected by the vehicle speed collection module is lower than the preset vehicle speed range and receives the command completion signal from the air deflector control module, the central control module generates a second air deflector control signal to control the air deflector control module to lower the air deflector.

[0012] According to a control method for actively reducing wind resistance of a tractor provided by the present invention, when the vehicle speed information collected by the vehicle speed collection module is within a preset vehicle speed range and the suspension height fed back by the active suspension control module is within a preset low-speed suspension height, the central control module generates a first active suspension control signal to control the active suspension control module to reduce the suspension height; If the vehicle speed information collected by the vehicle speed collection module is lower than the preset vehicle speed range and the suspension height fed back by the active suspension control module is at the preset high-speed suspension height, the active suspension second control signal is generated through the central control module to control the active suspension control module to increase the suspension height.

[0013] According to a control method for actively reducing wind resistance of a tractor provided by the present invention, when the steering wheel angle information collected by the steering angle information collection module is higher than a preset steering angle threshold, the distance between the trailer and the cab is less than the preset distance threshold, and a command completion signal of the sliding saddle control module is received, a first sliding saddle control signal is generated through the central control module to control the sliding saddle control module to move the sliding saddle forward; When the steering wheel angle information collected by the steering wheel angle information collection module is lower than the preset steering angle threshold, the vehicle speed is within the preset vehicle speed range, the distance between the trailer and the cab exceeds the preset distance threshold, and the instruction completion signal of the sliding saddle control module is received, the central control module generates a second sliding saddle control signal to control the sliding saddle control module to move the sliding saddle forward; When the steering wheel angle information collected by the angle information collection module is lower than the preset angle threshold, the vehicle speed is lower than the preset speed range, the gap between the trailer and the cab is less than the preset distance threshold, and the command completion signal from the sliding saddle control module is received, the third sliding saddle control signal is generated through the central control module to control the sliding saddle control module to move the sliding saddle backward.

[0014] The present invention provides a control system and method for actively reducing wind resistance of a tractor. The control system collects vehicle speed information, engine water temperature information, trailer height information, trailer-to-cab distance information, and steering wheel angle information, and sends the information to a central control module. The central control module compares the received information with a preset threshold value to generate a control instruction; controls an air intake grille control module, a fairing control module, an active suspension control module, and a sliding saddle control module to perform actions; and realizes multi-module coordinated control to reduce wind resistance of the tractor during driving and reduce fuel consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the connection of control system modules for actively reducing wind resistance of a tractor provided by the present invention.

[0017] Figure 2It is a schematic diagram of the structure of a control system for actively reducing wind resistance of a tractor provided by the present invention.

[0018] Figure 3 It is a schematic diagram of air intake grille control of the control method for actively reducing wind resistance of a tractor provided by the present invention.

[0019] Figure 4 It is a schematic diagram of the control of the deflector of the control method for actively reducing the wind resistance of the tractor provided by the present invention.

[0020] Figure 5 It is a schematic diagram of active suspension control of a control method for actively reducing wind resistance of a tractor provided by the present invention.

[0021] Figure 6 It is a schematic diagram of the sliding saddle control of the control method for actively reducing wind resistance of a tractor provided by the present invention. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Combine the following Figure 1 A control system for actively reducing wind resistance of a tractor according to the present invention is described, comprising: a vehicle speed acquisition module 10, a temperature acquisition module 20, a trailer information acquisition module 30, a turning angle acquisition module 40, a control unit 50, an air intake grille control module 60, a deflector control module 70, an active suspension control module 80, and a sliding saddle control module 90; The vehicle speed collection module, the temperature collection module, the trailer information collection module and the steering angle information collection module respectively collect vehicle speed information, engine water temperature information, trailer height information, trailer and cab distance information and steering wheel angle information, and send them to the central control module for analysis and judgment to generate control instructions; The air intake grille control module, air deflector control module, active suspension control module and sliding saddle control module receive control instructions sent by the central control module to control the state changes of the air intake grille control module, air deflector control module, active suspension control module and sliding saddle.

[0024] In the present invention, the vehicle speed collection module 10 is used to collect the vehicle speed information of the tractor; the vehicle speed collection module 10 is connected to the control unit to transmit the vehicle speed information to the control unit 50; The temperature acquisition module 20 is used to collect the water temperature information of the engine; the temperature acquisition module 20 is connected to the control unit 50 to transmit the engine water temperature information to the control unit 50; The trailer information collection module 30 is used to collect the height information of the trailer and the distance information between the trailer and the cab; the trailer information collection module 30 is connected to the control unit 50 to transmit the trailer height information and the distance information between the trailer and the cab to the control unit 50; The turning angle acquisition module 40 is used to collect steering wheel angle information; the turning angle acquisition module 40 is connected to the control unit 50 to transmit the steering wheel angle information to the control unit 50; The control unit 50 is also electrically connected to the air intake grille control module 60, the air deflector control module 70, the active suspension control module 80 and the sliding saddle control module 90; the control unit 50 has a storage function, and can analyze the information provided by the four acquisition modules according to preset information, and issue instructions to the air intake grille control module 60, the air deflector control module 70, the active suspension control module 80 and the sliding saddle control module 90; The air intake grille control module 60 is used to receive the command of the control unit 50 to adjust the opening and closing of the air intake grille and feed back the control unit 50 a command completion signal after the command is completed.

[0025] The deflector control module 70 is used to receive the command of the control unit 50 to adjust the folding and unfolding of the deflector, and feed back the control unit 50 a command completion signal after the command is completed.

[0026] The active suspension control module 80 is used to receive the instruction from the control unit 50 to adjust the height of the suspension, and feed back the height information of the suspension to the control unit 50 .

[0027] The sliding saddle control module 90 is used to receive the command from the control unit 50 to adjust the front and rear position of the saddle, and to feed back a command completion signal to the control unit 50 after the command is completed.

[0028] Specifically, the vehicle speed acquisition module 10 can be a vehicle speed sensor installed in the drive axle housing, or a vehicle speed sensor installed in the gearbox housing, to collect the vehicle speed information of the tractor and transmit the vehicle speed information to the control unit 50; the temperature acquisition module 20 can be a water temperature sensor installed on the engine, to collect the water temperature information of the engine, and transmit the temperature information to the control unit 50; the trailer information acquisition module 30 can be installed on the upper rear of the tractor cab, and can simultaneously identify the height of the trailer and the distance between the cab and the trailer and transmit the height of the trailer and the distance between the cab and the trailer to the control unit 50; the angle acquisition module 40 can be an angle sensor installed on the steering column, to collect the angle information, and transmit the angle information to the control unit 50.

[0029] The air intake grille control module 60 includes a controller and an air intake grille adjustment mechanism, which are used to control the opening and closing of the air intake grille. The control unit 50 determines whether the air intake grille needs to be opened or closed according to the engine water temperature and the vehicle speed. If necessary, the control unit 50 sends an instruction to the air intake grille control module 60, and the air intake grille control module 60 controls the opening and closing of the air intake grille, and sends an instruction completion signal to the control unit 50 after the action is completed.

[0030] The air deflector control module 70 includes a controller and an air deflector adjustment mechanism, which is used to control the lifting and lowering of the air deflector. The control unit 50 determines whether the height of the air deflector needs to be adjusted according to the trailer height information and the vehicle speed information. If necessary, the control unit 50 calculates the height of the corresponding air deflector according to the trailer height, and sends a command to the air deflector control module 70, and the air deflector control module 70 controls the air deflector to be raised or lowered to the corresponding height, and sends an action completion signal to the control unit 50 after the action is completed.

[0031] The active suspension control module 80 includes a controller and a suspension height adjustment mechanism for adjusting the height of the suspension. The control unit 50 determines whether the height of the suspension needs to be adjusted according to the vehicle speed information. If necessary, the control unit 50 calculates the height to be raised or lowered of the suspension according to the vehicle speed, and sends a command to the active suspension control module 80, and the active suspension control module 80 controls the suspension to be raised or lowered to the corresponding height, and sends the current suspension height information to the control unit 50 after the action is completed.

[0032] The sliding saddle control module 90 includes a controller and a sliding saddle adjustment mechanism, which is used to control the sliding saddle to move forward and backward. The control unit 50 determines whether the sliding saddle needs to be adjusted according to the turning angle information, the vehicle speed information and the distance information between the trailer and the cab. If necessary, the control unit 50 calculates the corresponding adjustment distance according to the distance information between the trailer and the cab, and sends a command to the sliding saddle control module 90, and the sliding saddle control module 90 controls the sliding saddle to move forward or backward, and sends an action completion signal to the control unit 50 after the action is completed.

[0033] The present invention transmits the identified vehicle body information, engine water temperature information, trailer height information, trailer and cab distance information, and steering wheel angle information to the control unit through the vehicle speed acquisition module 10, the temperature acquisition module 20, the trailer information acquisition module 30, and the angle acquisition module 40. The control unit analyzes the above-mentioned transmitted information and issues instructions to intelligently control the opening and closing of the air intake grille control module, the height of the air deflector, the height of the suspension, and the front and rear positions of the sliding saddle through the air intake grille control module 60, the air deflector control module 70, the active suspension control module 80, and the sliding saddle control module 90, so as to achieve precise control of the tractor under different working conditions, ensure minimum wind resistance, reduce the driver's workload, and save energy for the tractor.

[0034] refer to Figure 2 Specifically, the air intake grille control switch 61, the air deflector control switch 71, the suspension height control switch 81, and the sliding saddle control switch 91 are respectively electrically connected to the control unit 50, so that when the control unit 50 receives the signal sent by the switch, it respectively sends instructions to the air intake grille control module 60, the air deflector control module 70, the active suspension control module 80, and the sliding saddle control module 90 to control the air intake grille, the air deflector, the suspension, and the sliding saddle to execute related instruction actions.

[0035] Specifically, the air intake grille control switch 61 is used to send a signal to open / close the air intake grille to the control unit 50. After receiving the signal, the control unit 50 sends an instruction to open / close the air intake grille to the air intake grille control module 60. After receiving the instruction, the air intake grille control module 60 executes the action of opening / closing the air intake grille.

[0036] The air deflector control switch 71 is used to send a signal to lift / lower the air deflector to the control unit 50. After receiving the signal, the control unit 50 sends an instruction to lift / lower the air deflector to the air deflector control module 70. After receiving the instruction, the air deflector control module 70 executes the action of lifting / lowering the air deflector.

[0037] The suspension height control switch 81 is used to send a signal to increase / decrease the suspension height to the control unit 50. After receiving the signal, the control unit 50 sends an instruction to increase / decrease the suspension height to the active suspension control module 80. After receiving the instruction, the active suspension control module 80 performs the action of raising / lowering the fairing. The sliding saddle control switch 91 is used to send a signal of moving the sliding saddle forward / backward to the control unit 50. After receiving the signal, the control unit 50 sends an instruction to move the sliding saddle forward / backward to the sliding saddle control module 90. After receiving the instruction, the sliding saddle control module 90 executes the action of moving the sliding saddle forward / backward.

[0038] The present invention also discloses a control method for actively reducing wind resistance of a tractor, comprising: The vehicle speed collection module, temperature collection module, trailer information collection module and steering angle information collection module respectively collect vehicle speed information, engine water temperature information, trailer height information, trailer and cab distance information and steering wheel angle information, and send them to the central control module; The central control module compares the received information with a preset threshold value and generates a control instruction; Based on the control instruction, the air intake grille control module, the air deflector control module, the active suspension control module and the sliding saddle control module are controlled to perform actions, and after completing the control instruction, a completion signal is fed back to the central control module.

[0039] Wherein, if the engine water temperature information collected by the temperature collection module is lower than the preset temperature range and a command completion signal is received from the air intake grille control module, a first air intake grille control signal is generated through the central control module to control the air intake grille control module to close the air intake grille; When the engine water temperature information collected by the temperature collection module is within the preset temperature range, the vehicle speed is lower than the preset speed range and a command completion signal from the air intake grille control module is received, a second air intake grille control signal is generated through the central control module to control the air intake grille control module to open the air intake grille; If the engine water temperature information collected by the temperature collection module is within the preset temperature range, the vehicle speed is within the preset speed range and a command completion signal from the air intake grille control module is received, a third air intake grille control signal is generated through the central control module to control the air intake grille control module to close the air intake grille; If the engine water temperature information collected by the temperature collection module is higher than the preset temperature space and receives the command completion signal from the air intake grille control module, the fourth air intake grille control signal is generated through the central control module, and the air intake grille control module is controlled to open the air intake grille.

[0040] If the vehicle speed information collected by the vehicle speed collection module is within the preset vehicle speed range, the trailer height is higher than the preset height threshold and a command completion signal from the air deflector control module is received, a first air deflector control signal is generated through the central control module to control the air deflector control module to lift the air deflector; If the vehicle speed information collected by the vehicle speed collection module is lower than the preset vehicle speed range and receives the command completion signal from the air deflector control module, the central control module generates a second air deflector control signal to control the air deflector control module to lower the air deflector.

[0041] If the vehicle speed information collected by the vehicle speed collection module is within the preset vehicle speed range and the suspension height fed back by the active suspension control module is within the preset low-speed suspension height, the central control module generates a first active suspension control signal to control the active suspension control module to lower the suspension height; If the vehicle speed information collected by the vehicle speed collection module is lower than the preset vehicle speed range and the suspension height fed back by the active suspension control module is at the preset high-speed suspension height, the active suspension second control signal is generated through the central control module to control the active suspension control module to increase the suspension height.

[0042] When the steering wheel angle information collected by the steering angle information collection module is higher than the preset steering angle threshold, the distance between the trailer and the cab is less than the preset distance threshold, and the instruction completion signal of the sliding saddle control module is received, the first sliding saddle control signal is generated through the central control module to control the sliding saddle control module to move the sliding saddle forward; When the steering wheel angle information collected by the steering wheel angle information collection module is lower than the preset steering angle threshold, the vehicle speed is within the preset vehicle speed range, the distance between the trailer and the cab exceeds the preset distance threshold, and the instruction completion signal of the sliding saddle control module is received, the central control module generates a second sliding saddle control signal to control the sliding saddle control module to move the sliding saddle forward; When the steering wheel angle information collected by the angle information collection module is lower than the preset angle threshold, the vehicle speed is lower than the preset speed range, the gap between the trailer and the cab is less than the preset distance threshold, and the command completion signal from the sliding saddle control module is received, the third sliding saddle control signal is generated through the central control module to control the sliding saddle control module to move the sliding saddle backward.

[0043] In a specific embodiment, in combination Figure 3 , Figure 4 , Figure 5 , Figure 6 A control method for actively reducing wind resistance of a tractor provided in an example of the present invention. Figure 3 , Figure 4 , Figure 5 , Figure 6The control method for actively reducing wind resistance of a tractor provided by an embodiment of the present invention is shown. For ease of understanding, the flow chart of the control method for actively reducing wind resistance of a tractor is divided into the following modules: Figure 3 , Figure 4 , Figure 5 , Figure 6 .like Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the control method includes: S101: Acquire the engine water temperature collected by the temperature collection module and the tractor speed collected by the speed collection module.

[0044] Specifically, the temperature acquisition module and the vehicle speed acquisition module are connected to the control unit, the temperature acquisition module transmits the collected engine water temperature information to the control unit, and the vehicle speed acquisition module transmits the collected vehicle speed information to the control unit.

[0045] S102: The control unit makes a determination based on a preset temperature range and a preset vehicle speed range.

[0046] Specifically, the control unit determines whether it is necessary to adjust the opening and closing of the air intake grille based on the engine water temperature information and the vehicle speed information. If necessary, the control unit determines the required air intake grille state based on the preset temperature range and the preset vehicle speed range, and sends an instruction to the air intake grille control module.

[0047] S103: The air intake grille control module controls the opening and closing of the air intake grille.

[0048] Specifically, after receiving the instruction from the control module, the air intake grille control module executes the action of opening or closing the air intake grille, and sends an instruction completion signal to the control unit after the action is completed.

[0049] S201: Acquire the speed of the tractor collected by the speed collection module and the height of the trailer collected by the trailer information collection module.

[0050] Specifically, the vehicle speed collection module and the trailer information collection module are connected to the control unit, the vehicle speed collection module transmits the collected vehicle speed information to the control unit, and the trailer information collection module transmits the collected trailer height information to the control unit.

[0051] S202: The control unit makes a judgment based on a preset vehicle speed range and a trailer height threshold.

[0052] Specifically, the control unit determines whether the height of the air deflector needs to be adjusted based on the vehicle speed information and the trailer height information. If necessary, the control unit determines the height to which the air deflector needs to be raised or lowered based on the preset vehicle speed range and trailer height threshold, and sends an instruction to the air deflector control module.

[0053] S203: The air deflector control module adjusts the height of the air deflector.

[0054] Specifically, the air deflector control module performs an action of adjusting the height of the air deflector according to the received instruction, and sends an instruction completion signal to the control unit after the action is completed.

[0055] S301: Acquire the vehicle speed of the tractor collected by the vehicle speed collection module and the suspension height fed back by the active suspension control module.

[0056] Specifically, the vehicle speed collection module and the active suspension control module are respectively connected to the control unit, the vehicle speed collection control module transmits the collected vehicle speed information to the control unit, and the active suspension control module transmits the suspension height information to the control unit.

[0057] S302: The control unit makes a judgment based on a preset vehicle speed range and suspension height.

[0058] Specifically, the control unit determines whether the suspension height needs to be adjusted based on the vehicle speed information and the suspension height information. If necessary, the control unit determines the height to which the suspension needs to be raised or lowered based on the preset vehicle speed range and suspension height, and issues a raising or lowering instruction to the active suspension control module.

[0059] S303: The active suspension control module adjusts the suspension height.

[0060] Specifically, the active suspension control module adjusts the height of the suspension according to the received instruction, and transmits the adjusted suspension height information to the control unit after the adjustment action is completed.

[0061] S401: Acquire the distance between the trailer and the cab collected by the trailer information collection module and the turning angle information collected by the steering collection module.

[0062] Specifically, the trailer information collection module and the steering collection module are respectively connected to the control unit, the trailer information collection module transmits the collected distance information between the trailer and the cab to the control unit, and the steering collection module transmits the collected turning angle information to the control unit.

[0063] S402: The control unit makes a judgment based on a preset front-rear spacing threshold and a preset turning angle threshold.

[0064] Specifically, the control unit determines whether it is necessary to adjust the front and rear position of the sliding saddle based on the distance information and the turning angle information between the trailer and the cab. If necessary, the control unit determines the forward or backward movement distance of the sliding saddle based on the preset front and rear spacing threshold and the turning angle threshold, and issues an instruction to the sliding saddle control module.

[0065] S403: The sliding saddle control module adjusts the front and rear positions of the sliding saddle.

[0066] Specifically, the sliding saddle control module adjusts the front and rear positions of the sliding saddle according to the received instructions, and transmits an instruction completion signal to the control unit after the adjustment action is completed.

[0067] A control method for actively reducing wind resistance of a tractor provided by the present invention collects vehicle speed information, engine water temperature information, trailer height information, trailer and cab distance information, and steering wheel angle information, and sends them to a central control module, and the central control module compares the received information with a preset threshold value to generate a control instruction; controls an air intake grille control module, a fairing control module, an active suspension control module, and a sliding saddle control module to act; realizes multi-module coordinated control, reduces wind resistance of the tractor during driving, and reduces fuel consumption.

[0068] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0069] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A control system for actively reducing wind resistance of a tractor, characterized in that: include: Vehicle speed acquisition module, temperature acquisition module, trailer information acquisition module, corner information acquisition module, central control module, air intake grille control module, air deflector control module, active suspension control module and sliding saddle control module; The vehicle speed collection module, the temperature collection module, the trailer information collection module and the steering angle information collection module respectively collect vehicle speed information, engine water temperature information, trailer height information, trailer and cab distance information and steering wheel angle information, and send them to the central control module for analysis and judgment to generate control instructions; The air intake grille control module, air deflector control module, active suspension control module and sliding saddle control module receive control instructions sent by the central control module to control the state changes of the air intake grille control module, air deflector control module, active suspension control module and sliding saddle.

2. The control system for actively reducing wind resistance of a tractor according to claim 1, characterized in that: The vehicle speed collection module is used to collect the vehicle speed information of the tractor, and the vehicle speed collection module is connected to the central control module to transmit the vehicle speed information to the central control module; The temperature acquisition module is used to collect water temperature information of the engine, and the temperature acquisition module is connected to the central control module to transmit the engine water temperature information to the central control module; The trailer information collection module is used to collect the height information of the trailer and the distance information between the trailer and the cab. The trailer information collection module is connected to the central control module to transmit the height information of the trailer and the distance information between the trailer and the cab to the central control module; The angle acquisition module is used to acquire steering wheel angle information. The angle information acquisition module is connected to the central control module to transmit the steering wheel angle information to the central control module.

3. The control system for actively reducing wind resistance of a tractor according to claim 1, characterized in that: The central control module compares the received vehicle speed information, water temperature information, trailer height information, trailer and cab distance information and steering wheel angle information with the set thresholds and generates a control instruction.

4. The control system for actively reducing wind resistance of a tractor according to claim 1, characterized in that: The air intake grille control module is used to receive the control command of the central control module to adjust the opening and closing of the air intake grille, and feed back a completion signal to the central control module after the control command is completed; The deflector control module is used to receive the control command of the central control module to adjust the lifting and lowering of the deflector, and feed back a completion signal to the central control module after the control command is completed; The active suspension control module is used to receive the control command of the central control module to adjust the height of the active suspension, and to feed back the height information of the suspension, and to feed back a completion signal to the central control module after the control command is completed; The sliding saddle control module is used to receive the control command of the central control module to adjust the forward and backward movement of the sliding saddle, and feed back a completion signal to the central control module after the control command is completed.

5. The control system for actively reducing wind resistance of a tractor according to claim 1, characterized in that: The system further comprises: A deflector control switch connected to the central control module is used by the driver to manually adjust the height of the deflector; The air intake grille control switch connected to the central control module is used by the driver to manually adjust the opening and closing of the air intake grille; A suspension height control switch connected to the central control module is used by the driver to manually adjust the height of the suspension; The sliding saddle control switch connected to the central control module is used by the driver to manually adjust the front and rear position of the sliding saddle.

6. A control method for actively reducing wind resistance of a tractor, characterized in that: include: The vehicle speed collection module, temperature collection module, trailer information collection module and steering angle information collection module respectively collect vehicle speed information, engine water temperature information, trailer height information, trailer and cab distance information and steering wheel angle information, and send them to the central control module; The central control module compares the received information with a preset threshold value and generates a control instruction; Based on the control instruction, the air intake grille control module, the air deflector control module, the active suspension control module and the sliding saddle control module are controlled to perform actions, and after completing the control instruction, a completion signal is fed back to the central control module.

7. The control method for actively reducing wind resistance of a tractor according to claim 6, characterized in that: When the engine water temperature information collected by the temperature collection module is lower than the preset temperature range and a command completion signal is received from the air intake grille control module, a first air intake grille control signal is generated through the central control module to control the air intake grille control module to close the air intake grille; When the engine water temperature information collected by the temperature collection module is within the preset temperature range, the vehicle speed is lower than the preset vehicle speed range and a command completion signal from the air intake grille control module is received, a second air intake grille control signal is generated through the central control module to control the air intake grille control module to open the air intake grille; If the engine water temperature information collected by the temperature collection module is within the preset temperature range, the vehicle speed is within the preset speed range and a command completion signal from the air intake grille control module is received, a third air intake grille control signal is generated through the central control module to control the air intake grille control module to close the air intake grille; If the engine water temperature information collected by the temperature collection module is higher than the preset temperature space and receives the command completion signal from the air intake grille control module, the fourth air intake grille control signal is generated through the central control module, and the air intake grille control module is controlled to open the air intake grille.

8. The control method for actively reducing wind resistance of a tractor according to claim 6, characterized in that: If the vehicle speed information collected by the vehicle speed collection module is within the preset vehicle speed range, the trailer height is higher than the preset height threshold and a command completion signal from the air deflector control module is received, the central control module generates a first air deflector control signal to control the air deflector control module to lift the air deflector; If the vehicle speed information collected by the vehicle speed collection module is lower than the preset vehicle speed range and receives the command completion signal from the air deflector control module, the central control module generates a second air deflector control signal to control the air deflector control module to lower the air deflector.

9. The control method for actively reducing wind resistance of a tractor according to claim 6, characterized in that: If the vehicle speed information collected by the vehicle speed collection module is within the preset vehicle speed range and the suspension height fed back by the active suspension control module is within the preset low-speed suspension height, the central control module generates a first active suspension control signal to control the active suspension control module to lower the suspension height; If the vehicle speed information collected by the vehicle speed collection module is lower than the preset vehicle speed range and the suspension height fed back by the active suspension control module is at the preset high-speed suspension height, the active suspension second control signal is generated through the central control module to control the active suspension control module to increase the suspension height.

10. The control method for actively reducing wind resistance of a tractor according to claim 6, characterized in that: When the steering wheel angle information collected by the steering angle information collection module is higher than the preset steering angle threshold, the distance between the trailer and the cab is less than the preset distance threshold, and the instruction completion signal of the sliding saddle control module is received, the central control module generates a first sliding saddle control signal to control the sliding saddle control module to move the sliding saddle forward; When the steering wheel angle information collected by the steering wheel angle information collection module is lower than the preset steering angle threshold, the vehicle speed is within the preset vehicle speed range, the distance between the trailer and the cab exceeds the preset distance threshold, and the instruction completion signal of the sliding saddle control module is received, the central control module generates a second sliding saddle control signal to control the sliding saddle control module to move the sliding saddle forward; When the steering wheel angle information collected by the angle information collection module is lower than the preset angle threshold, the vehicle speed is lower than the preset speed range, the gap between the trailer and the cab is less than the preset distance threshold, and the command completion signal from the sliding saddle control module is received, the third sliding saddle control signal is generated through the central control module to control the sliding saddle control module to move the sliding saddle backward.

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