Distributed drive system and control method for an electric field truck
A drive system and control method technology, applied in electric vehicles, control drives, brake transmissions, etc., can solve problems such as load interaction, large variation range, unfavorable modularization and productization, etc., and achieve motor drive. The control system is compact and reliable, easy to operate, and the effect of good coordination performance
Active Publication Date: 2016-04-27
SOUTH CHINA AGRI UNIV
View PDF8 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, due to the complex operating conditions of field trucks and the wide range of changes in the load, wheels and ground forces, the existing commercial motor drives are only used as motor controllers, and have not yet involved load changes or interactions with loads. , the motor drive control is coupled with other modules (such as navigation, etc.), which is not conducive to the realization of modularization and productization
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0044] like figure 1 As shown, the electric field truck described in this embodiment includes 4 wheels, 2 brake mechanisms and 2 steering mechanisms, and its distributed drive system is: each wheel is independently driven by a brushless DC in-wheel motor , each braking mechanism is driven by a DC motor for braking, and each steering mechanism is driven by a DC motor for steering. The main controller of the electric field truck is an embedded microcontroller based on the ARM core. controller. The model of the main controller used in this embodiment is STM32F103RCT6. The main controller performs calculation according to the steering signal and speed signal input from the outside, and then controls the speed of four brushless DC wheel hub motors through the brushless DC motor driver, and controls two steering DC motors and two DC motors through the DC motor driver. DC motor for braking. Using the main controller of the above structure to control 8 motors in real time at the sa...
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
Login to View More Abstract
The invention discloses an electric field carrier distribution type driving system and a control method thereof. A main controller of the system is an embedding type microcontroller based on an ARM kernel, each wheel is driven by a brushless direct current hub motor in an independent mode, each brake mechanism is driven by a direct current motor for brake, each steering mechanism is driven by a direct current motor for steering, and the main controller conducts calculating according to steering signals and speed signals input by the outside, and then conducts driving control on the motors. The method comprises the steps that speed of the direct current motors for steering and speed of the direct current motors for brake are controlled in a PWM control mode, speed of the brushless direct current hub motors through UART serial interfaces, a plurality of motors are simultaneously controlled through the non-cross coupled algorithm, and the fact that the direct current motors for steering have higher priority than the brushless direct current hub motors and the direct current motors for brake is set in a control process. The electric field carrier distribution type driving system can simultaneously drive and control the plurality of motors, and achieves matching rationalization and high efficiency of whole carrier power.
Description
technical field [0001] The invention relates to the research field of mobile vehicle control systems, in particular to a distributed drive system of an electric field truck and a control method thereof. Background technique [0002] Compared with traditional diesel engine and gasoline engine power, the electric field truck powered by electric energy is more convenient and flexible in speed and torque control, and can save the mechanical transmission mechanism. It has compact structure, small size, light weight, and small working radius of gyration. The overall advantages are "small, smart, and ingenious", and its maintenance cost is also low. This electric field transport vehicle is especially suitable for small field operation areas, and will not cause exhaust gas pollution. At the same time, electric energy can be obtained by secondary conversion of renewable energy, which is easier to popularize and apply, and is suitable for agricultural applications. [0003] The Chine...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): B60L11/18B60L15/20B62D5/04B60T13/74
CPCY02T10/64Y02T10/72
Inventor 张铁民黄翰黄鹏焕张征
Owner SOUTH CHINA AGRI UNIV