System and method for indicating compactor amplitude setting difference

Abstract

A system for a compactor includes one or more first sensors, one or more second sensors, and a controller including one or more memories and one or more processors. The processor is configured to receive, from the first sensor, one or more first signals indicative of a first vibration amplitude of a first vibration system of the compactor; receiving, from a second sensor, one or more second signals indicative of a second vibration amplitude of a second vibration system of the compactor; it is determined whether a difference between the first vibration amplitude and the second vibration amplitude is greater than a predetermined threshold stored in the memory, and an output signal is generated if the difference between the first vibration amplitude and the second vibration amplitude is greater than the predetermined threshold.

Description

Technical Field

[0001] The present invention relates to a compactor, and more specifically, to a system for indicating the amplitude setting difference of a compactor and a method for indicating the amplitude setting difference of a compactor. Background Technology

[0002] A compactor is used to compact materials such as asphalt, soil, concrete, and / or other materials. A compactor includes a pair of rollers that come into contact with the material to be compacted. Specifically, the pair of rollers includes a first roller located at the front end of the compactor and a second roller located at the rear end of the compactor. Each roller is equipped with a vibration system for varying the amplitude and frequency of its vibration.

[0003] In some cases, the compactor may be incorrectly set up, and the rollers may operate with different vibration amplitudes. Different vibration amplitudes between the first and second rollers can lead to poor and / or uneven compaction, and may also affect compaction density. Furthermore, different vibration amplitudes can cause roller wear, potentially damage the rollers, and / or result in material damage / waste. In addition, the different vibration amplitudes can increase operator fatigue and discomfort due to uneven vibration transmitted to the compactor operator's cab.

[0004] WO2022079643 describes a vibratory compaction machine including a chassis, at least one roller, and a control system. The at least one roller is rotatable about an axis facing the Y-axis and mounted to the chassis to allow rotation on a working surface. At least one vibration mechanism is configured to generate vibrations that are transmitted as impacts from the at least one roller along the Z-axis direction toward the working surface. The at least one vibration mechanism is provided with a plurality of different amplitude settings. The control system is configured to measure the acceleration force of the at least one roller in a direction substantially corresponding to the X-axis direction, wherein the acceleration force is generated by the vibration mechanism, and the X-axis direction extends substantially orthogonal to both the Y-axis and Z-axis directions. Summary of the Invention

[0005] In one aspect of the invention, a system for indicating a difference in amplitude setting of a compactor is provided. The system includes one or more first sensors associated with a first drum of the compactor. The one or more first sensors are configured to generate one or more first signals indicating a first vibration amplitude of a first vibration system associated with the first drum. The system also includes one or more second sensors associated with a second drum of the compactor. The one or more second sensors are configured to generate one or more second signals indicating a second vibration amplitude of a second vibration system associated with the second drum. The system further includes a controller. The controller includes one or more memories, and one or more processors communicatively coupled to each of the one or more memories, the one or more first sensors, and the one or more second sensors. The one or more memories are configured to store a predetermined threshold for the difference between the first vibration amplitude and the second vibration amplitude. The one or more processors are configured to receive one or more first signals indicating the first vibration amplitude of the first vibration system from the one or more first sensors. The one or more processors are also configured to receive one or more second signals indicating the second vibration amplitude of the second vibration system from the one or more second sensors. The one or more processors are further configured to determine whether the difference between the first vibration amplitude and the second vibration amplitude is greater than the predetermined threshold. One or more processors are configured to generate an output signal if the difference between the first vibration amplitude and the second vibration amplitude is greater than a predetermined threshold. The output signal indicates the compactor amplitude setting difference.

[0006] In another aspect of the invention, a compactor is provided. The compactor includes a frame. The compactor also includes a first roller coupled to the frame. The compactor further includes a first vibration system disposed within the first roller, the first vibration system being adapted to vibrate the first roller. The compactor includes a second roller coupled to the frame. The compactor also includes a second vibration system disposed within the second roller, the second vibration system being adapted to vibrate the second roller. The compactor further includes a system for indicating a difference in the compactor's amplitude setting. The system includes one or more first sensors associated with the first roller of the compactor. The one or more first sensors are configured to generate one or more first signals indicating a first vibration amplitude of the first vibration system associated with the first roller. The system also includes one or more second sensors associated with the second roller of the compactor. The one or more second sensors are configured to generate one or more second signals indicating a second vibration amplitude of the second vibration system associated with the second roller. The system further includes a controller. The controller includes one or more memories, and one or more processors communicatively coupled to each of the one or more memories, the one or more first sensors, and the one or more second sensors. The one or more memories are configured to store a predetermined threshold value for the difference between the first vibration amplitude and the second vibration amplitude. One or more processors are configured to receive one or more first signals from one or more first sensors, indicating a first vibration amplitude of a first vibration system. The one or more processors are also configured to receive one or more second signals from one or more second sensors, indicating a second vibration amplitude of a second vibration system. The one or more processors are further configured to determine whether the difference between the first vibration amplitude and the second vibration amplitude is greater than a predetermined threshold. The one or more processors are configured to generate an output signal if the difference between the first vibration amplitude and the second vibration amplitude is greater than the predetermined threshold. The output signal indicates the compactor amplitude setting difference.

[0007] In another aspect of the invention, a method for indicating a difference in the amplitude setting of a compactor is provided. The method includes generating one or more first signals, indicating a first vibration amplitude of a first vibration system associated with a first roller of the compactor, via one or more first sensors associated with a first roller of the compactor. The method also includes generating one or more second signals, indicating a second vibration amplitude of a second vibration system associated with a second roller of the compactor, via one or more second sensors associated with a second roller of the compactor. The method further includes receiving one or more first signals, indicating the first vibration amplitude of the first vibration system, from one or more first sensors via one or more processors of a controller. The method also includes receiving one or more second signals, indicating the second vibration amplitude of the second vibration system, from one or more second sensors via one or more processors. The method further includes determining, via one or more processors, whether the difference between the first vibration amplitude and the second vibration amplitude is greater than a predetermined threshold value for the difference between the first vibration amplitude and the second vibration amplitude. Further, one or more memories of the controller are configured to store the predetermined threshold value. The method further includes generating an output signal by one or more processors if the difference between the first vibration amplitude and the second vibration amplitude is greater than the predetermined threshold value. The method includes indicating a difference in the amplitude setting of the compactor based on the generation of the output signal.

[0008] Other features and aspects of the invention will become apparent from the following description and accompanying drawings. Attached Figure Description

[0009] Figure 1 This is a schematic perspective view of a compactor according to an example of the present invention;

[0010] Figure 2 This is an example of an instruction according to the invention. Figure 1 A schematic block diagram of a system with poor compactor amplitude settings;

[0011] Figure 3 This is another example of the invention for indicating Figure 1 A schematic block diagram of a system with poor compactor amplitude settings; and

[0012] Figure 4 This is an example of an instruction according to the invention. Figure 1 A flowchart of the method for setting the amplitude difference of a compactor. Detailed Implementation

[0013] Use the same reference numerals in all figures to denote the same or similar parts, whenever possible.

[0014] refer to Figure 1A schematic perspective view of a compactor 100 is shown. The compactor 100 can be a soil compactor, asphalt compactor, concrete compactor, landfill compactor, pneumatic roller, tandem vibrating roller, etc. Furthermore, the invention is not limited to the type of compactor 100 and can include any other machine comprising a drum / roller with a vibration system or vibrating component, for which vibration amplitude can be measured.

[0015] The compactor 100 includes a frame 102. The frame 102 supports various components of the compactor 100. The compactor 100 defines a front end 104 and a rear end 106 opposite to the front end 104. The compactor 100 may include a power source 108 supported by the frame 102. The various components of the compactor 100 are operated by the power source 108. The power source 108 may be an engine, such as an internal combustion engine, a fuel cell, a battery system, etc., without limiting the scope of the invention. The compactor 100 further includes an operator's cab 110. An operator can sit in the operator's cab 110 to perform and / or observe the compaction operation.

[0016] The compactor 100 further includes a first roller 114 coupled to a frame 102. The first roller 114 is a front compaction roller disposed at a front end 104 of the compactor 100. The compactor 100 includes a first vibration system 120 disposed within the first roller 114. The first vibration system 120 vibrates the first roller 114. The first vibration system 120 includes multiple components, such as an eccentric counterweight, an actuator, a shift fork, etc., which cause the first roller 114 to vibrate with a desired vibration amplitude. Further, the first vibration system 120 includes a pump 210 ( Figure 2 (as shown in the diagram) and motor 211. Pump 210 may be a hydraulic pump, and motor 211 may be a hydraulic motor. In some examples, pump 210 is operatively connected to motor 211 to operate motor 211. Motor 211 can then operate one or more components of the first vibration system 120 to cause the eccentric counterweight of the first vibration system 120 to vibrate with a desired vibration amplitude. Pump 210 defines input terminal 212 ( Figure 2 (as shown) and output terminal 218 ( Figure 2 As shown in the diagram). Motor 211 defines input terminal 216 ( Figure 2 (as shown) and output terminal 220 ( Figure 2 (as shown in the image).

[0017] The compactor 100 also includes a second roller 116 coupled to the frame 102. The second roller 116 is a rear compaction roller disposed at the rear end 106 of the compactor 100. The first roller 114 and the second roller 116 may be similar to each other in design and function. Together, the first roller 114 and the second roller 116 support the frame 102 of the compactor 100 and provide movement for the compactor 100. Further, the first roller 114 and the second roller 116 contact the working surface to perform a compaction operation for compacting materials such as asphalt, soil, gravel, etc. Each of the first roller 114 and the second roller 116 includes a housing 112. The housing 112 contacts the working surface during compaction operation or during movement of the compactor 100.

[0018] The compactor 100 further includes a second vibration system 122 disposed within a second drum 116. The second vibration system 122 causes the second drum 116 to vibrate. The second vibration system 122 includes multiple components, such as an eccentric counterweight, an actuator, a shift fork, etc., which cause the second drum 116 to vibrate with a desired vibration amplitude. Further, the second vibration system 122 includes a pump 230 (…). Figure 2 (as shown in the diagram) and motor 231. Pump 230 may be a hydraulic pump, and motor 231 may be a hydraulic motor. In some examples, pump 230 is operatively connected to motor 231 to operate motor 231. Motor 231 can then operate one or more components of the second vibration system 122 to cause the eccentric counterweight of the second vibration system 122 to vibrate with a desired vibration amplitude. Pump 230 defines input terminal 232 ( Figure 2 (as shown) and output terminal 238 ( Figure 2 As shown in the diagram). Motor 231 defines input terminal 236 ( Figure 2 (as shown) and output terminal 240 ( Figure 2 (as shown in the image).

[0019] refer to Figure 2 An example of indicating according to the invention is shown. Figure 1 A schematic block diagram of a system 200 for indicating the amplitude setting difference of a compactor 100. The compactor 100 includes a system 200 for indicating the amplitude setting difference of the compactor 100. Specifically, the system 200 indicates the difference between a first vibration amplitude of a first vibration system 120 and a second vibration amplitude of a second vibration system 122.

[0020] System 200 includes a first roller 114 of compactor 100 (see...) Figure 1One or more first sensors 202 are associated with the first vibration system 120 associated with the first roller 114. The one or more first sensors 202 generate one or more first signals 204, which indicate a first vibration amplitude of the first vibration system 120 associated with the first roller 114. The one or more first sensors 202 are pressure sensors. Specifically, the one or more first sensors 202 include a first input pressure sensor 208 and a first output pressure sensor 214. The first input pressure sensor 208 may be located at the input terminals 212, 216 of the pump 210 or the motor 211 of the first vibration system 120. Further, the first output pressure sensor 214 may be located at the output terminals 218, 220 of the pump 210 or the motor 211 of the first vibration system 120. In one example, the system 200 may include a single first sensor 202, which may be located at the input terminals 212, 216 of the pump 210 or the motor 211 of the first vibration system 120. In another example, system 200 may include a single first sensor 202, which may be located at the output 218, 220 of pump 210 or motor 211 of the first vibration system 120. The invention is not limited to the type or number of first sensors 202 associated with system 200.

[0021] System 200 also includes a second roller 116 connected to compactor 100 (see...) Figure 1 One or more second sensors 222 are associated with the second vibration system 122. The one or more second sensors 222 generate one or more second signals 224, which indicate a second vibration amplitude of the second vibration system 122 associated with the second roller 116. One or more first sensors 202 are pressure sensors. Specifically, the one or more second sensors 222 include a second input pressure sensor 228 and a second output pressure sensor 234. The second input pressure sensor 228 may be located at the input terminals 232, 236 of the pump 230 or the motor 231 of the second vibration system 122. Further, the second output pressure sensor 234 may be located at the output terminals 238, 240 of the pump 230 or the motor 231 of the second vibration system 122. In one example, the system 200 may include a single second sensor 222, which may be located at the input terminals 232, 236 of the pump 230 or the motor 231 of the second vibration system 122. In another example, system 200 may include a single second sensor 222, which may be located at the outputs 238, 240 of pump 230 or motor 231 of the second vibration system 122. The invention is not limited to the type or number of second sensors 222 associated with system 200. It should be noted that the first and second sensors 202, 222 may include any type of sensor that provides information about the first vibration amplitude and the second vibration amplitude, respectively.

[0022] System 200 further includes a controller 250. Controller 250 includes one or more memories 252. The one or more memories 252 store a predetermined threshold T1 for the difference between a first vibration amplitude and a second vibration amplitude. In some examples, the predetermined threshold T1 for the difference between the first vibration amplitude and the second vibration amplitude may vary based on the travel direction of the compactor 100, the vibration velocity of the first vibration system 120, the vibration velocity of the second vibration system 122, the temperature of the hydraulic oil, and / or the temperature of the material compacted by the compactor 100. The predetermined threshold T1 may vary based on other factors not mentioned herein without limiting the scope of the invention.

[0023] One or more memories 252 may include any means of storing information, including hard disks, optical disks, floppy disks, ROMs (read-only memories), RAMs (random access memories), PROMs (programmable ROMs), EEPROMs (electrically erasable PROMs), or other computer-readable storage media.

[0024] The controller 250 also includes one or more processors 254. The one or more processors 254 are communicatively coupled to each of one or more memories 252, one or more first sensors 202, and one or more second sensors 222.

[0025] It should be noted that one or more processors 254 may be embodied as a single microprocessor or multiple microprocessors for receiving various input signals and generating output signals. Many commercially available microprocessors can perform the functions of one or more processors 254. One or more processors 254 may further include general-purpose processors, central processing units, application-specific integrated circuits (ASICs), digital signal processors, field-programmable gate arrays (FPGAs), digital circuits, analog circuits, microcontrollers, any other type of processor, or any combination thereof. One or more processors 254 may include one or more components operable to execute computer-executable instructions or computer code, which may be stored in one or more memories 252 and retrieved from one or more memories 252.

[0026] One or more processors 254 receive one or more first signals 204 from one or more first sensors 202, indicating a first vibration amplitude of the first vibration system 120. The one or more processors 254 further receive one or more second signals 224 from one or more second sensors 222, indicating a second vibration amplitude of the second vibration system 122.

[0027] One or more processors 254 determine whether the difference between the first vibration amplitude and the second vibration amplitude is greater than a predetermined threshold T1. Specifically, one or more processors 254 retrieve the predetermined threshold T1 from one or more memories 252 to determine whether the difference between the first vibration amplitude and the second vibration amplitude is greater than the predetermined threshold T1. If the difference between the first vibration amplitude and the second vibration amplitude is greater than the predetermined threshold T1, the one or more processors 254 further generate an output signal 256. The output signal 256 indicates the amplitude setting difference of the compactor 100.

[0028] System 200 further includes an output module 260 communicatively coupled to one or more processors 254. Output module 260 receives output signals 256 from one or more processors 254. Output module 260 generates a notification N1 to indicate an amplitude setting difference to a user. The user may be an operator or anyone responsible for the compactor 100. In some examples, output module 260 may be a display screen, speaker, smartphone, tablet, light, etc. Output module 260 may be located inside the operator's cab 110. Alternatively, output module 260 may be located outside the operator's cab 110, thus notifying a user located outside the compactor 100 of the amplitude setting difference. Notification N1 may be an audio message, text message, video message, or a combination thereof. In some examples, output module 260 may trigger an alarm or light signal to indicate an amplitude setting difference to a user, without limiting the scope of the invention.

[0029] refer to Figure 3 This illustrates another example of an instruction according to the invention. Figure 1 A schematic block diagram of a system 300 with a differential amplitude setting for a compactor 100. System 300 is basically similar to... Figure 2 The system 200 shown uses the same reference numerals to denote the same components. However, one or more first sensors 202 of system 300 include a first accelerometer 320. In some examples, one or more first sensors 202 include a single first accelerometer 320. The first accelerometer 320 measures the acceleration force of the first roller 114. The first accelerometer 320 may be mounted on the vibrating side of an isolation support (not shown) of the first roller 114. Further, one or more second sensors 222 include a second accelerometer 340. In some examples, one or more second sensors 222 include a single second accelerometer 340. The second accelerometer 340 measures the acceleration force of the second roller 116. The second accelerometer 340 may be mounted on the vibrating side of an isolation support (not shown) of the second roller 116.

[0030] In the example, each of the first accelerometer 320 and the second accelerometer 340 can convert the mechanical vibrations of the first roller 114 and the second roller 116 into electrical signals to determine the amplitude setting difference of the compactor 100. The first accelerometer 320 and the second accelerometer 340 generate a first signal 204 and a second signal 224, respectively, and transmit the first signal 204 and the second signal 224 to the processor 254, based on which the processor 254 determines the amplitude setting difference of the compactor 100. Figure 2 The method explained determines the 100 amplitude setting difference of the compactor.

[0031] It should be understood that the various features shown or described for one embodiment may be combined with the various features shown or described for another embodiment. The above embodiments do not limit the scope of the invention in any way. Therefore, it should be understood that although some features have been shown or described to illustrate the use of the invention in the context of the functional sections, these features may be omitted from the scope of the invention without departing from the spirit of the invention as defined in the appended claims.

[0032] Industrial applicability

[0033] The present invention relates to a compactor 100. The compactor 100 includes a first roller 114 and a second roller 116 connected to a frame 102. The compactor 100 also includes a first vibration system 120 and a second vibration system 122 respectively disposed within the first roller 114 and the second roller 116.

[0034] The compactor 100 further includes systems 200 and 300. Systems 200 and 300 include a controller 250. The controller 250 includes one or more processors 254 that generate an output signal 256 if the difference between the first vibration amplitude and the second vibration amplitude is greater than a predetermined threshold T1. Notification N1 can alert the user regarding the difference in amplitude settings between the first roller 114 and the second roller 116. Therefore, the user can adjust the amplitude setting of either the first roller 114 or the second roller 116.

[0035] Furthermore, systems 200 and 300 can prevent uneven compaction of materials, such as over-compaction or under-compaction, and can also prevent material damage / waste by preventing the first roller 114 and the second roller 116 from operating with different amplitudes, based on notification N1 provided to the user. In addition, systems 200 and 300 can prevent wear / damage to the compactor 100 caused by uneven vibrations generated by the first roller 114 and the second roller 116. Furthermore, if the first vibration amplitude differs from the second vibration amplitude, systems 200 and 300 can reduce operator fatigue and discomfort that could otherwise be caused by uneven vibrations transmitted to the operator's cab 110 of the compactor 100.

[0036] Overall, systems 200 and 300 have a simple structure and do not require complex components for operation. Furthermore, systems 200 and 300 can improve the operating time and efficiency of compactor 100. In addition, systems 200 and 300 may be cost-effective, can be retrofitted onto existing compactors, and are easy to install on compactors.

[0037] Figure 4 This is a flowchart of a method 400 for indicating the amplitude setting difference of a compactor 100. (Reference) Figures 1 to 4 At step 402, one or more first sensors 202 associated with the first roller 114 of the compactor 100 generate one or more first signals 204, the first signals 204 indicating the first vibration amplitude of the first vibration system 120 associated with the first roller 114.

[0038] At step 404, one or more second sensors 222 associated with the second roller 116 of the compactor 100 generate one or more second signals 224, the second signals 224 indicating the second vibration amplitude of the second vibration system 122 associated with the second roller 116.

[0039] At step 406, one or more processors 254 of controller 250 receive one or more first signals 204 from one or more first sensors 202 indicating the first vibration amplitude of the first vibration system 120.

[0040] At step 408, one or more processors 254 receive one or more second signals 224 from one or more second sensors 222 indicating the second vibration amplitude of the second vibration system 122.

[0041] At step 410, one or more processors 254 determine whether the difference between the first vibration amplitude and the second vibration amplitude is greater than a predetermined threshold T1. One or more memories 252 of the controller 250 store the predetermined threshold T1.

[0042] At step 412, if the difference between the first vibration amplitude and the second vibration amplitude is greater than a predetermined threshold T1, then one or more processors 254 generate an output signal 256.

[0043] At step 414, the amplitude setting difference of the compactor 100 is indicated based on the generation of the output signal 256.

[0044] Output module 260 is communicatively coupled to one or more processors 254. Method 400 further includes a step (not shown) in which output module 260 receives an output signal 256 from one or more processors 254. Method 400 further includes a step (not shown) in which output module 260 generates a notification N1 to indicate an amplitude setting difference to a user.

[0045] refer to Figure 1 , Figure 2 and Figure 4 One or more first sensors 202 are pressure sensors. The one or more first sensors 202 include a first input pressure sensor 208 and a first output pressure sensor 214. Method 400 further includes a step (not shown) in which the first input pressure sensor 208 is connected to an input terminal 212, 216 of the pump 210 or a motor 211 of the first vibration system 120. Method 400 further includes a step (not shown) in which the first output pressure sensor 214 is connected to an output terminal 218, 220 of the pump 210 or a motor 211 of the first vibration system 120.

[0046] Further, one or more second sensors 222 are pressure sensors. The one or more second sensors 222 include a first input pressure sensor 208 and a first output pressure sensor 214. Method 400 further includes a step (not shown) in which the second input pressure sensor 228 is connected to an input terminal 232, 236 of the pump 230 or a motor 231 of the second vibration system 122. Method 400 further includes a step (not shown) in which the second output pressure sensor 234 is connected to an output terminal 238, 240 of the pump 230 or a motor 231 of the second vibration system 122.

[0047] refer to Figure 1 , Figure 3 and Figure 4 One or more first sensors 202 include a first accelerometer 320 to measure the acceleration force of the first roller 114. Method 400 further includes a step (not shown) in which the first accelerometer 320 is coupled to the first roller 114.

[0048] One or more second sensors 222 include a second accelerometer 340 to measure the acceleration force of the second roller 116. Method 400 further includes a step (not shown) in which the second accelerometer 340 is coupled to the second roller 116.

[0049] It should be noted that steps 402, 404, 406, 408, 410, 412, and 414 of method 400 can be related to... Figure 4The different orders of execution are explained. Furthermore, steps 402, 404, 406, 408, 410, 412, and 414 can be executed together.

[0050] While various aspects of the invention have been specifically shown and described with reference to the foregoing embodiments, those skilled in the art will understand that various additional embodiments can be conceived through modifications to the disclosed machines, systems, and methods without departing from the spirit and scope of the invention. Such embodiments should be understood to fall within the scope of the invention as defined by the claims and any equivalents.

Claims

1. A system for indicating the amplitude setting difference of a compactor, the system comprising: One or more first sensors associated with the first drum of the compactor, wherein the one or more first sensors are configured to generate one or more first signals, the one or more first signals indicating a first vibration amplitude of a first vibration system associated with the first drum; One or more second sensors associated with the second drum of the compactor, wherein the one or more second sensors are configured to generate one or more second signals, the one or more second signals indicating a second vibration amplitude of a second vibration system associated with the second drum; as well as A controller includes one or more memories and one or more processors communicatively coupled to each of the one or more memories, the one or more first sensors, and the one or more second sensors, wherein the one or more memories are configured to store a predetermined threshold for the difference between the first vibration amplitude and the second vibration amplitude, and the one or more processors are configured to: Receive from the one or more first sensors the one or more first signals indicating the first vibration amplitude of the first vibration system; Receive from the one or more second sensors the one or more second signals indicating the second vibration amplitude of the second vibration system; Determine whether the difference between the first vibration amplitude and the second vibration amplitude is greater than the predetermined threshold. as well as If the difference between the first vibration amplitude and the second vibration amplitude is greater than the predetermined threshold, an output signal is generated, wherein the output signal indicates the amplitude setting difference of the compactor.

2. The system of claim 1, wherein each of the one or more first sensors and the one or more second sensors is a pressure sensor.

3. The system according to claim 2, wherein the one or more first sensors include a first input pressure sensor and a first output pressure sensor, wherein the first input pressure sensor is disposed at the input end of the pump or the motor of the first vibration system, and wherein the first output pressure sensor is disposed at the output end of the pump or the motor of the first vibration system.

4. The system of claim 2, wherein the one or more second sensors include a second input pressure sensor and a second output pressure sensor, wherein the second input pressure sensor is disposed at the input end of the pump or the motor of the second vibration system, and wherein the second output pressure sensor is disposed at the output end of the pump or the motor of the second vibration system.

5. The system of claim 1, wherein the one or more first sensors include a first accelerometer configured to measure the acceleration force of the first roller, and wherein the one or more second sensors include a second accelerometer configured to measure the acceleration force of the second roller.

6. The system of claim 1, wherein the predetermined threshold for the difference between the first vibration amplitude and the second vibration amplitude varies based on the travel direction of the compactor, the vibration velocity of the first vibration system, the vibration velocity of the second vibration system, the temperature of the hydraulic oil, and / or the temperature of the material compacted by the compactor.

7. The system of claim 1, further comprising an output module communicatively coupled to the one or more processors, wherein the output module is configured to receive the output signal from the one or more processors, and wherein the output module is configured to generate a notification instructing a user of the amplitude setting difference.

Images