Method and device for controlling vibration of pure electric truck at low speed
A control method and technology of a control device are applied in the direction of control device, electric vehicle, control drive, etc. to achieve the effects of eliminating interference, reducing steady-state error, and eliminating vehicle jitter at low speed.
Active Publication Date: 2021-03-16
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
View PDF12 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The main purpose of the present invention is to propose a method and device for controlling the low-speed driving vibration of pure electric trucks, aiming to better eliminate the problem of vehicle low-speed driving vibration in combination with eliminating the interference of mechanical components
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 Construction
[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0024] It should be noted that if there are directional indications (such as up, down, left, right, front, back, etc.) involved in the embodiments of the present invention, the directional indications are only used to explain a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly.
[0025] In addition, if there are descriptions involving "first", "sec...
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 a control method and device for low-speed travelling jitter of a pure electric truck, and relates to the technical field of pure electric trucks. The control method for the low-speed travelling jitter of the pure electric truck comprises the following steps: cancelling regulating authority of an integral term coefficient of an internal PID control module of a motor controller while vehicle travelling speed is lower than a preset speed threshold value; acquiring current motor rotation speed information in real time through a whole vehicle controller, and judging whethersliding jitter exists or not according to current motor rotation speed information; if sliding jitter exists, triggering auxiliary torque control; judging whether sliding jitter is eliminated or not;and if sliding jitter is eliminated, opening the regulating authority of the integral term coefficient of the internal PID control module of the motor controller. Interferences of mechanical parts areeliminated by combining, so that the vehicle low-speed travelling jitter problem is eliminated better.
Description
technical field [0001] The invention relates to the technical field of pure electric vehicles, in particular to a method and a device for controlling the vibration of pure electric trucks at low speed. Background technique [0002] In the existing technical solution, when eliminating the jitter of the vehicle at low speed, the low-speed jitter caused by the interference of the mechanical components of the whole system is not considered, and the mechanism of the low-speed jitter of some models is not fully grasped, only limited to electronic equipment. Parameter optimization of the system and control device itself. Therefore, the control is often not complete, and the low-speed driving jitter cannot be completely eliminated. Sometimes blindly adjusting the software parameters of the control device is counterproductive because the crux of the low-speed jitter problem is not found. [0003] The reason for the low-speed driving jitter of pure electric trucks is not only due to...
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): B60L15/20
CPCB60L15/20B60L2240/421Y02T10/72
Inventor 黄秋生张亚飞万海桥王秀强尹孝源魏俞斌马磊杨进陈浩
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD