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

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...

Examples

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...

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...

Examples

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...

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