CN-117265954-B - Control method of paver, walking system of paver and paver

CN117265954BCN 117265954 BCN117265954 BCN 117265954BCN-117265954-B

Abstract

The invention relates to the technical field of working machines, and provides a control method of a paver, a traveling system of the paver, the paver and electronic equipment. The control method of the paver comprises the steps of obtaining current discharge pressure of a running pump, determining that the current discharge pressure of the running pump is larger than preset pressure, wherein the preset pressure is smaller than design discharge pressure of the running pump, and controlling at least one of speed and acceleration of a running mechanism of the paver to be reduced until the current discharge pressure of the running pump is smaller than or equal to the preset pressure. The control method of the paver is used for solving the defect of rollover caused by sudden stop of the travelling mechanism in the prior art, and the discharge pressure of the travelling pump is controlled to ensure that the travelling pump is in a stable running state, and the travelling pump stably provides driving force for the travelling mechanism, so that travelling controllability of the paver is realized.

Inventors

CHEN FEIHONG
Xiong Jikun
Qu Youshuai

Assignees

湖南三一中益机械有限公司

Dates

Publication Date: 20260505
Application Date: 20231102

Claims (9)

1. A control method of a paver, characterized by comprising: Acquiring the current discharge pressure of the traveling pump based on the speed of the paver being greater than a set speed, and/or acquiring the current discharge pressure of the traveling pump based on the acceleration of the paver being greater than a set acceleration; determining that a current discharge pressure of the travel pump is greater than a preset pressure, the preset pressure being less than a design discharge pressure of the travel pump; and controlling at least one of the speed and the acceleration of the travelling mechanism of the paver to be reduced until the current discharge pressure of the travelling pump is determined to be less than or equal to the preset pressure.
2. The method according to claim 1, wherein the step of controlling at least one of a speed and an acceleration of a traveling mechanism of the paver until it is determined that the current discharge pressure of the traveling pump is equal to or less than the preset pressure includes: if the running mechanism is determined to run at a constant speed, controlling the speed of the running mechanism to be reduced until the current discharge pressure of the running pump is determined to be smaller than or equal to the preset pressure; Or alternatively, the first and second heat exchangers may be, And controlling the acceleration of the running mechanism to be reduced when the running mechanism is determined to accelerate, until the current discharge pressure of the running pump is determined to be less than or equal to the preset pressure.
3. The control method of a paver according to claim 2, wherein the step of controlling the acceleration of the running mechanism to decrease until it is determined that the current discharge pressure of the running pump is equal to or less than the preset pressure includes: and controlling the running mechanism to drop at least one preset acceleration from the current acceleration until the current discharge pressure of the running pump is determined to be smaller than or equal to the preset pressure.
4. A control method of a spreading machine according to claim 3, wherein said step of controlling said running gear to drop from a current acceleration by at least one preset acceleration comprises: acquiring the current load of the paver, and determining the calculated acceleration of the paver, corresponding to the current load and the preset pressure of the running pump; And obtaining a difference value between the current acceleration and the calculated acceleration, and controlling the preset acceleration to be larger than or equal to the difference value.
5. The control method of a paver according to claim 2, wherein the step of controlling the acceleration of the running mechanism to decrease until it is determined that the current discharge pressure of the running pump is equal to or less than the preset pressure includes: determining that the paver turns to a first side relative to the travelling direction for travelling; controlling the acceleration of the first travel mechanism on the first side to decrease until it is determined that the current discharge pressure of the first travel pump is less than the preset pressure; Controlling the acceleration of the second travelling mechanism positioned on the second side to be reduced until the current discharge pressure of the second travelling pump is determined to be equal to the preset pressure; The paver comprises a first travelling mechanism, a second travelling mechanism, a first travelling pump and a second travelling pump, wherein the first travelling pump is used for driving the first travelling mechanism to move, the second travelling pump is used for driving the second travelling mechanism to move, the first side is one of a left side and a right side, and the second side is the other of the left side and the right side.
6. The method for controlling a paving machine according to claim 1, wherein the step of controlling a decrease in at least one of a speed and an acceleration of a traveling mechanism of the paving machine includes: the input current of the running motor is controlled to decrease.
7. Travelling system of a paver for performing a control method of a paver as claimed in any one of claims 1-6, characterized in that it comprises a travelling pump, a travelling mechanism, a pressure sensor and a controller, the travelling pump being connected to the travelling mechanism, the pressure sensor being arranged to detect the current discharge pressure of the travelling pump, the travelling mechanism, the pressure sensor being connected to the controller.
8. A paver comprising a travelling system of the paver as claimed in claim 7.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the control method of the paver according to any one of claims 1 to 6 when executing the computer program.

Description

Control method of paver, walking system of paver and paver Technical Field The invention relates to the technical field of working machines, in particular to a control method of a paver, a traveling system of the paver, the paver and electronic equipment. Background The paver is a construction device which is mainly used for paving various materials on a base layer and a surface layer of a highway. The paver comprises a walking system, a hydraulic system, a distributing system and other different systems, and the systems are matched with each other to finish the paving work. The stability of the travelling system of the paver directly influences the stability of the screed plate and the road surface flatness, and the controllability of the travelling system is also the guarantee of equipment and personnel safety in the transition process. The traveling system comprises traveling mechanisms respectively arranged at the left side and the right side of the paver, in the traveling process, the traveling mechanisms have the condition of suddenly stopping, if the traveling mechanism at one side suddenly stops, the traveling mechanism at the other side still continues to operate, so that the risk of side turning of the paver is caused, and the traveling controllability of the paver is affected. Disclosure of Invention The invention provides a control method of a paver, which is used for solving the defect of rollover caused by sudden stop of a travelling mechanism in the prior art, and the discharge pressure of a travelling pump is controlled to ensure that the travelling pump is in a stable running state, and the travelling pump stably provides driving force for the travelling mechanism so as to realize travelling controllability of the paver. The invention provides a control method of a paver, which comprises the following steps: Acquiring the current discharge pressure of the running pump; determining that a current discharge pressure of the travel pump is greater than a preset pressure, the preset pressure being less than a design discharge pressure of the travel pump; and controlling at least one of the speed and the acceleration of the travelling mechanism of the paver to be reduced until the current discharge pressure of the travelling pump is determined to be less than or equal to the preset pressure. According to the control method of the paver provided by the invention, the step of controlling at least one of the speed and the acceleration of the travelling mechanism of the paver until the current discharge pressure of the travelling pump is less than or equal to the preset pressure is determined comprises the following steps: if the running mechanism is determined to run at a constant speed, controlling the speed of the running mechanism to be reduced until the current discharge pressure of the running pump is determined to be smaller than or equal to the preset pressure; Or alternatively, the first and second heat exchangers may be, And controlling the acceleration of the running mechanism to be reduced when the running mechanism is determined to accelerate, until the current discharge pressure of the running pump is determined to be less than or equal to the preset pressure. According to the control method of the paver provided by the invention, the step of controlling the acceleration of the travelling mechanism to be reduced until the current discharge pressure of the travelling pump is less than or equal to the preset pressure comprises the following steps: and controlling the running mechanism to drop at least one preset acceleration from the current acceleration until the current discharge pressure of the running pump is determined to be smaller than or equal to the preset pressure. According to the control method of the paver provided by the invention, the step of controlling the running mechanism to drop at least one preset acceleration from the current acceleration comprises the following steps: acquiring the current load of the paver, and determining the calculated acceleration of the paver, corresponding to the current load and the preset pressure of the running pump; And obtaining a difference value between the current acceleration and the calculated acceleration, and controlling the preset acceleration to be larger than or equal to the difference value. According to the control method of the paver provided by the invention, the step of controlling the acceleration of the travelling mechanism to be reduced until the current discharge pressure of the travelling pump is less than or equal to the preset pressure comprises the following steps: determining that the paver turns to a first side relative to the travelling direction for travelling; controlling the acceleration of the first travel mechanism on the first side to decrease until it is determined that the current discharge pressure of the first travel pump is less than the preset pressure; Controlling the acceleration of the second trave