Active cover control system and control method for van

Abstract

The present invention relates to a control system for an active cover plate of a van and a control method thereof, which comprises a cover plate lifting drive mechanism and a control circuit; the cover plate lifting drive mechanism comprises a box body, a cover plate, a cylinder and a hydraulic lock; the cover plate is arranged on the top of the box body, and one side of the cover plate is hinged to a side wall of the box body; a hydraulic lock is provided on the cylinder, the fixed end of the cylinder is fixed in one side wall of the box body, and the movable end of the cylinder is rotatably connected to the bottom surface of the cover plate; the control circuit comprises a signal collector, a control unit and a chassis battery, and the chassis battery supplies power to the control circuit; the input end of the control unit is electrically connected to the signal collector, and the output end of the control unit is electrically connected to the cylinder, the signal collector collects data from the chassis of the van and transmits it to the control unit, and the control unit controls the extension and retraction of the cylinder to open and close the cover plate. The above technical solution effectively reduces the failure rate and damage rate of the lifting cover plate.

Description

Technical Field

[0001] The present invention relates to the field of sanitation vehicles, and in particular to a van-type active cover control system and a control method thereof. Background Art

[0002] Currently, van-type barreled garbage trucks (hereinafter referred to as vans) utilize liftable, folding, or rolling covers to ensure vehicle passability and convenient loading. Considering production cost, difficulty, and structural reliability, most vans utilize liftable covers. These are raised and lowered by a hydraulic cylinder. They are opened during loading and unloading, facilitating entry and exit. When the van is in motion, the covers are closed to lower the vehicle's height and improve passability.

[0003] Existing liftable covers require manual control of their raising and lowering, and they must remain closed while the vehicle is in motion. Users often leave the cover raised for convenience when transporting trash barrels over short distances. Due to the cover's high mass, it generates significant inertia while the vehicle is in motion. This inertial force can affect the elastic limit and fatigue strength of the cover's connectors, potentially causing them to break. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention provides a van-type active cover control system that effectively reduces the failure rate and damage rate of a lift-type cover.

[0005] The active cover control system for a van of the present invention includes a cover lifting drive mechanism and a control circuit; the cover lifting drive mechanism includes a box body, a cover plate, a cylinder and a hydraulic lock; the cover plate is arranged on the top of the box body, and one side of the cover plate is hinged to the side wall of the box body; the cylinder is provided with a hydraulic lock, the fixed end of the cylinder is fixed in the side wall of the box body, and the movable end of the cylinder is rotatably connected to the bottom surface of the cover plate; the control circuit includes a signal collector, a control unit and a chassis battery, the chassis battery supplies power to the control circuit, the input end of the control unit is electrically connected to the signal collector, and the output end of the control unit is electrically connected to the cylinder, the signal collector collects the chassis data of the van and transmits it to the control unit, and the control unit controls the extension and retraction of the cylinder to open and close the cover plate.

[0006] Furthermore, the control circuit also includes a top cover opening switch, a top cover closing switch, a relay 1 and a relay 2; the positive pole of the chassis battery is connected to the normally open switch of the relay 1 through a fuse 1 and connected to the input terminal 1 of the control unit and the input terminal of the signal collector; the output terminal of the signal collector is connected to the input terminal 2 of the control unit; the output terminal 1 of the control unit is connected to the coil of the relay 2 and connected to the negative pole of the chassis battery; the output terminal 2 of the control unit is connected to the opening valve of the hydraulic lock and connected to the negative pole of the chassis battery through the switch 1; the output terminal 3 of the control unit is connected to the closing valve of the hydraulic lock and connected to the negative pole of the chassis battery; one end of the coil of the relay 1 is connected to the negative pole of the chassis battery through the switch 2 and the fuse 2 in sequence In the ON position of the chassis battery, the other end of the coil of relay one is connected to the negative pole of the chassis battery; the positive pole of the chassis battery is connected to the normally open switch of relay two and connected to one end of the oil cylinder, and the other end of the oil cylinder is connected to the negative pole of the chassis battery; one end of the top cover opening switch is connected between the normally open switch of relay one and the control unit, and the other end of the top cover opening switch is respectively connected between the output terminal one of the control unit and the coil of relay two, as well as between switch one and the opening valve of the hydraulic lock; one end of the top cover closing switch is connected between the normally open switch of relay one and the control unit, and the other end of the top cover closing switch is respectively connected between the output terminal one of the control unit and the coil of relay two, as well as between switch one and the closing valve of the hydraulic lock.

[0007] Furthermore, the control circuit also includes relay three, the normally open switch of relay three is connected between the normally open switch of relay two and one end of the oil cylinder, one end of the coil of relay three is connected between the normally open switch of relay three and the normally open switch of relay two, and the other end of the coil of relay three is connected to the negative pole of the chassis battery.

[0008] Furthermore, the rated current of the fuse 1 is 10A.

[0009] Furthermore, the rated current of the fuse 2 is 5A.

[0010] Furthermore, the voltage of the chassis power supply is 12V.

[0011] A control method for a van active cover control system comprises the following steps:

[0012] S1. The signal collector collects information from the chassis of the van to determine whether the van is moving. If so, the control unit outputs a signal to control the cylinder to retract and close the cover. Otherwise, the process proceeds to the next step.

[0013] S2, whether the control switch is turned on. If it is turned on, the control unit outputs a signal to control the cylinder to extend to open the cover. Otherwise, go to the next step.

[0014] S3, manually control the top cover open switch and the top cover close switch to output signals to control the cylinder to extend and open the cover.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The control circuit is used to automatically control the cover to close when the vehicle is moving, effectively reducing the failure rate and damage rate of the lifting cover;

[0017] 2. The chassis battery is used for power supply, and 5A and 10A are fuses. The 5A fuse is connected to the chassis ON power supply. When the chassis is powered on, the entire system works. The 10A fuse protects the entire system circuit to prevent system circuit overload.

[0018] 3. Use chassis battery to provide power to the cylinder, and control the power output of the cylinder through control unit or relay 3;

[0019] 5. The top cover opening switch and top cover closing switch are manually controlled switches, which control the rise and fall of the top cover respectively. The hydraulic lock is installed on the oil cylinder to prevent the hydraulic oil in the oil cylinder from leaking. When the top cover opening switch and top cover closing switch are manually controlled or the control unit inputs a control signal to the cylinder, the hydraulic lock is opened at the same time to control the rise or fall of the top cover;

[0020] 6. A signal collector is used to collect the required chassis data. After receiving the data sent by the signal collector, the control unit analyzes and outputs control signals to the cylinder and one-way hydraulic lock to control their operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings described herein are used to provide a further understanding of the present application, in which:

[0022] Figure 1 This is a structural diagram of an existing lifting cover;

[0023] Figure 2 A module diagram of an embodiment of the present invention;

[0024] Figure 3 A circuit diagram of an embodiment of the present invention;

[0025] Figure 4 This is a control flow chart of an embodiment of the present invention. DETAILED DESCRIPTION

[0026] See also Figure 1-4As shown in one of the embodiments, the active cover control system of the van includes a cover lifting drive mechanism and a control circuit; the cover lifting drive mechanism includes a box body 2, a cover plate 1, a cylinder 3 and a hydraulic lock 4; the cover plate 1 is provided on the top of the box body 2, and one side of the cover plate 1 is hinged to the side wall of the box body 2; the cylinder 3 is provided with a hydraulic lock 4, the fixed end of the cylinder 3 is fixed in the side wall of the box body 2, and the movable end of the cylinder 3 is rotatably connected to the bottom surface of the cover plate 1; the control circuit includes a signal collector 5, a control unit 6 and a chassis battery 7, and the chassis battery 7 supplies power to the control circuit; the input end of the control unit 6 is electrically connected to the signal collector 5, and the output end of the control unit 6 is electrically connected to the cylinder 3. The signal collector 5 collects the chassis data of the van and transmits it to the control unit 6. The control unit 6 controls the extension and retraction of the cylinder 3 to open and close the cover plate 1.

[0027] Furthermore, the control circuit also includes a top cover opening switch S2, a top cover closing switch S3, a relay K1 and a relay K2; the positive pole of the chassis battery 7 is connected to the normally open switch of the relay K1 through a fuse FU1 and connected to the input terminal 1 of the control unit 6 and the input terminal of the signal collector 5; the output terminal of the signal collector 5 is connected to the input terminal 2 of the control unit 6; the output terminal 1 of the control unit 6 is connected to the coil of the relay K2 and connected to the negative pole of the chassis battery 7; the output terminal 2 of the control unit 6 is connected to the opening valve 41 of the hydraulic lock 4 and connected to the negative pole of the chassis battery 7 through a switch S4; the output terminal 3 of the control unit 6 is connected to the closing valve 42 of the hydraulic lock 4 and connected to the negative pole of the chassis battery 7; one end of the coil of the relay K1 is connected to the switch S1 and the fuse FU2 in sequence In the ON position of the chassis battery 7, the other end of the coil of relay K1 is connected to the negative pole of the chassis battery; the positive pole of the chassis battery 7 is connected to the normally open switch of relay K2 and connected to one end of the oil cylinder 3, and the other end of the oil cylinder 3 is connected to the negative pole of the chassis battery 7; one end of the top cover opening switch S2 is connected between the normally open switch of relay K1 and the control unit 6, and the other end of the top cover opening switch S2 is respectively connected between the output terminal 1 of the control unit 6 and the coil of relay K2, as well as between switch S4 and the opening valve 41 of the hydraulic lock 4; one end of the top cover closing switch S3 is connected between the normally open switch of relay K1 and the control unit 6, and the other end of the top cover closing switch S3 is respectively connected between the output terminal 1 of the control unit 6 and the coil of relay K2, as well as between switch S4 and the closing valve 42 of the hydraulic lock 4.

[0028] Furthermore, the control circuit also includes a relay three K3, the normally open switch of the relay three K3 is connected between the normally open switch of the relay two K2 and one end of the oil cylinder 3, one end of the coil of the relay three K3 is connected between the normally open switch of the relay three K3 and the normally open switch of the relay two K2, and the other end of the coil of the relay three K3 is connected to the negative pole of the chassis battery 7.

[0029] Furthermore, the rated current of the fuse FU1 is 10A.

[0030] Furthermore, the rated current of the fuse 2 FU2 is 5A.

[0031] Furthermore, the voltage of the chassis power supply 7 is 12V.

[0032] A control method for a van active cover control system comprises the following steps:

[0033] S1. The signal collector collects information from the chassis of the van to determine whether the van is moving. If so, the control unit outputs a signal to control the cylinder to retract and close the cover. Otherwise, the process proceeds to the next step.

[0034] S2, whether the control switch is turned on. If it is turned on, the control unit outputs a signal to control the cylinder to extend to open the cover. Otherwise, go to the next step.

[0035] S3, manually control the top cover open switch and the top cover close switch to output signals to control the cylinder to extend and open the cover.

[0036] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An active cover control system for a van, comprising a cover lift drive mechanism and a control circuit; the cover lift drive mechanism comprises a box body, a cover plate, a cylinder, and a hydraulic lock; the cover plate is located at the top of the box body, with one side of the cover plate hinged to a side wall of the box body; the cylinder is provided with a hydraulic lock, with a fixed end of the cylinder fixed to a side wall of the box body and a movable end of the cylinder rotatably connected to the bottom surface of the cover plate; and the following features: The control circuit includes a signal collector, a control unit, and a chassis battery. The chassis battery supplies power to the control circuit. The input end of the control unit is electrically connected to the signal collector, and the output end of the control unit is electrically connected to the oil cylinder. The signal collector collects data from the chassis of the van and transmits it to the control unit. The control unit controls the extension and retraction of the oil cylinder to open and close the cover. The control circuit also includes a top cover opening switch, a top cover closing switch, a relay 1 and a relay 2; the positive pole of the chassis battery is connected to the normally open switch of the relay 1 through a fuse 1 and connected to the input terminal 1 of the control unit and the input terminal of the signal collector; the output terminal of the signal collector is connected to the input terminal 2 of the control unit; the output terminal 1 of the control unit is connected to the coil of the relay 2 and connected to the negative pole of the chassis battery; the output terminal 2 of the control unit is connected to the opening valve of the hydraulic lock and connected to the negative pole of the chassis battery through the switch 1; the output terminal 3 of the control unit is connected to the closing valve of the hydraulic lock and connected to the negative pole of the chassis battery; one end of the coil of the relay 1 is connected to the chassis battery through the switch 2 and the fuse 2 in sequence The cylinder is in the ON position of the cylinder, and the other end of the coil of relay one is connected to the negative pole of the chassis battery; the positive pole of the chassis battery is connected to the normally open switch of relay two, which is connected to one end of the oil cylinder, and the other end of the oil cylinder is connected to the negative pole of the chassis battery; one end of the top cover opening switch is connected between the normally open switch of relay one and the control unit, and the other end of the top cover opening switch is respectively connected between the output terminal one of the control unit and the coil of relay two, as well as between switch one and the opening valve of the hydraulic lock; one end of the top cover closing switch is connected between the normally open switch of relay one and the control unit, and the other end of the top cover closing switch is respectively connected between the output terminal one of the control unit and the coil of relay two, as well as between switch one and the closing valve of the hydraulic lock; The control circuit also includes relay three, the normally open switch of relay three is connected between the normally open switch of relay two and one end of the oil cylinder, one end of the coil of relay three is connected between the normally open switch of relay three and the normally open switch of relay two, and the other end of the coil of relay three is connected to the negative pole of the chassis battery.

2. The active cover control system for a van according to claim 1, characterized in that: The rated current of the fuse 1 is 10A.

3. The active cover control system for a van according to claim 1, characterized in that: The rated current of the fuse 2 is 5A.

4. The active cover control system for a van according to claim 1, characterized in that: The voltage of the chassis battery is 12V.

5. A control method for a van active cover control system, using the van active cover control system according to any one of claims 1 to 4, characterized in that: It includes the following steps: S1. The signal collector collects information from the chassis of the van to determine whether the van is moving. If so, the control unit outputs a signal to control the cylinder to retract and close the cover. Otherwise, the process proceeds to the next step. S2, whether the control switch is turned on. If it is turned on, the control unit outputs a signal to control the cylinder to extend to open the cover. Otherwise, go to the next step. S3, manually control the top cover open switch and the top cover close switch to output signals to control the cylinder to extend and open the cover.

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