Novel energy-saving electric loader drive control system and control method

A technology of drive control and motor controller, applied in the direction of earth mover/shovel, construction, etc., can solve the problems of low transmission efficiency of hydraulic torque converter, high fuel consumption of engine, complicated control system, etc., and achieve low noise. , Simple wiring and stable control system

Pending Publication Date: 2020-06-05
XCMG CONSTR MACHINERY
View PDF8 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The engine consumes a lot of fuel, wastes energy and pollutes the environment
The transmission efficiency of the hydraulic torque converter is low, and the average efficiency is only about 30% during normal operation; the power transmission system of the existing pure electric loader mostly uses dual motors to drive the front and rear wheels, which is expensive and complicated to control
[0003] In the prior art, the Chinese patent discloses "a drive control system applied to pure electric loaders" CN109457744. Although it realizes the motor-driven traveling mechanism, the motor it uses has only a single power take-off port, and an external speed change mechanism is required. and transfer case to realize the four-wheel drive of the loader, the structure is complex, the manufacturing cost is high, and the maintenance is difficult
[0004] The Chinese patent also discloses "a hybrid loader power device and corresponding loader" CN206653918 provides the technology that the motor directly drives the axle to rotate through the transmission shaft, but two motors are required to be directly driven respectively to realize the four-wheel drive of the loader. Also expensive and complex control system

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Novel energy-saving electric loader drive control system and control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] combine figure 1 As shown, a new energy-saving electric loader drive control system,

[0025] The joystick 13 is connected to the vehicle controller VCU3, and the vehicle controller VCU3 is electrically connected to the motor controller I4, the motor controller II10, and the power battery controller BMS2; the vehicle controller VCU is connected to the motor controller I, motor controller II, The vehicle CAN bus communication is adopted between the joystick and the power battery controller BMS; the power CAN bus communication is adopted between the vehicle controller VCU and the motor controller Ⅰ and motor controller Ⅱ; the bus communication mode is adopted, and the transmission efficiency is high, and the system Quick response, accurate data, easy wiring;

[0026] The motor controller Ⅰ4 controls and connects the dual output shaft travel motor 5, the dual output shaft travel motor 5 has front and rear dual output power ports, and the front side output shaft of the dua...

Embodiment 2

[0031] On the basis of the first embodiment above, the control method of a novel energy-saving electric loader drive control system is as follows:

[0032] The vehicle controller VCU requests torque and speed requirements from the motor controller I and motor controller II, and the vehicle controller VCU requests power-on and power-off requirements from the power battery controller BMS;

[0033] The front and rear side output shafts of the dual-output-shaft traveling motor are in the form of front-rear coaxial structure, and the motor controller I of the dual-output-shaft traveling motor is connected to a high-voltage electrical connection; the power battery controller BMS provides the motor control system according to the instructions sent by the vehicle controller VCU. The required current and voltage requirements of the device I, the dual-output shaft walking motor directly drives the front and rear wheels to rotate through the front and rear transmission shafts.

[0034] T...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a novel energy-saving electric loader drive control system and control method, and belongs to the technical field of shoveling engineering machinery vehicles. A control handleis connected with a vehicle control unit (VCU); the VCU is electrically connected with a motor controller I, a motor controller II and a power battery controller BMS; the motor controller I is in control connection with a double-output-shaft walking motor, and the double-output-shaft walking motor drives front wheels and rear wheels through a front transmission shaft and a rear transmission shaft;the motor controller II is in control connection with a hydraulic pump control motor, and the hydraulic pump control motor drives a hydraulic pump to provide power for a hydraulic system of a loader;and the power battery controller BMS is in control connection with a power battery pack, and the power battery pack supplies power to the double-output-shaft walking motor and the hydraulic pump control motor. The motor is in a mode of a double-output-shaft structure, the whole machine is easy to arrange, the structure is simple and convenient, the reliability is high, the problems that an existing loader is complex in structure and control are solved, the working efficiency is high, and the good energy-saving effect is achieved.

Description

technical field [0001] The invention relates to a pure electric loader, in particular to a novel energy-saving electric loader drive control system and control method, and belongs to the technical field of shoveling construction machinery vehicles. Background technique [0002] Loaders are used for loading, unloading, pushing, construction and other operations of bulk materials such as soil, gravel, coal, etc., and are widely used in various construction sites. At present, the drive control system of wheel loaders mostly uses internal combustion engine power, the power transmission system technology is mature, and the engine is generally diesel engine. The engine consumes a lot of fuel, wastes energy and pollutes the environment. The transmission efficiency of the hydraulic torque converter is low, and the average efficiency in general work is only about 30%. Most of the existing pure electric loader power transmission systems use dual motors to drive the front and rear whe...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): E02F9/20E02F9/22
CPCE02F9/20E02F9/2058E02F9/22E02F9/225
Inventor 李松董雯雯王苏东侯璐江云鹤侯卓磊王伟李夏宇邱楚然陈立仁黄二静耿睿
Owner XCMG CONSTR MACHINERY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap