Control method and device for low-speed travelling jitter of pure electric truck
A control method and control device technology, applied in control devices, electric vehicles, control drives, etc., to achieve the effects of eliminating interference, reducing steady-state errors, and eliminating vehicle vibration at low speeds
Active Publication Date: 2019-11-12
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 following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0024] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.
[0025] In addition, if there are descriptions involving "first", "second" and ...
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 device for controlling vibration of pure electric trucks at low speeds. Background technique [0002] In the existing technical solutions, when eliminating the vibration of the vehicle at low speed, the low-speed vibration caused by the interference of the mechanical components of the entire system is not considered. The mechanism of the low-speed vibration of some models is not fully grasped, and it is only limited to the electronic Parameter optimization of the system and control device itself. Therefore, the control is often not thorough, and the vibration at low speeds cannot be completely eliminated. Sometimes because the crux of the low-speed jitter problem is not found, blindly adjusting the software parameters of the control device is often counterproductive. [0003] The reason for the low-speed driving vibration of pure electric trucks is n...
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 Applications(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