Intelligent travel motor control device and control method thereof

Abstract

The invention provides an intelligent travel motor control device which comprises a high-speed travel switch, a controller and a pressure sensor, wherein one end of the high-speed travel switch is in ground connection, and the other end of the high-speed travel switch is connected with the controller; the controller is connected with a high-speed travel solenoid valve, and the high-speed travel solenoid valve is connected with the travel motor in series; and the pressure sensor is used for measuring the travel motor and is connected with the controller. The invention further provides an intelligent travel motor high-speed and low-speed control method employing the intelligent travel motor control device. The control method comprises the following steps of: step 1, detecting that whether the high-speed travel switch is switched on or not; step 2, switching on the high-speed travel solenoid valve if the high-speed travel switch is switched on; step 3, detecting that whether the pressure value of the pressure detector is higher than the first threshold; and step 4, switching off the high-speed travel solenoid valve if the pressure value of the pressure sensor is higher than the first threshold. Based on real-time pressure feedback, the controller is adopted to control the solenoid valve to carry out high-speed and low-speed travel switch, so that the problem of powerless travel under high-speed travel state can be solved.

Description

technical field [0001] The invention relates to two-speed switching of motors, in particular to an intelligent walking motor control device and a control method thereof. Background technique [0002] The walking motor is installed on the walking frame of the excavator to realize the walking function of the excavator. [0003] The excavator travel motor has two travel speeds, the high speed is 4.5km / h, and the low speed is 2.5km / h. The speed can be switched through the high and low speed switching buttons on the display. The unit driving force at high speed is only about half of that at low speed, and there is no device on the travel motor to automatically switch between high and low speeds. As a result, in the state of high-speed travel, when the walking resistance is relatively large, especially when climbing, the walking is weak and difficult to climb. Not uphill. [0004] In the prior art, it can be solved by manually pressing the high and low speed travel buttons to sw...

AI Technical Summary

Problems solved by technology

The unit driving force at high speed is only about half of that at low speed, and there is no device on the travel motor to automatically switch between high and low speeds. As a result, in the state of high-speed travel, when the walking resistance is relatively large, especially when climbing, the walking is weak and difficult to climb. not uphill

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