Supercharge Your Innovation With Domain-Expert AI Agents!

Pure electric vehicle hill starting control strategy considering driving style

A pure electric vehicle, driving style technology, applied in the field of pure electric vehicle hill start control strategy, can solve the problem of starting control strategy that rarely considers driving style, etc.

Pending Publication Date: 2021-07-16
重庆军工产业集团股份有限公司
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The starting control strategy of the first gear of a pure electric vehicle equipped with a 2-speed transmission is similar to the starting control strategy of a pure electric vehicle equipped with a fixed gear ratio reducer, but there are few starting control strategies that consider driving style

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
  • Pure electric vehicle hill starting control strategy considering driving style
  • Pure electric vehicle hill starting control strategy considering driving style
  • Pure electric vehicle hill starting control strategy considering driving style

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings. In the description of the present invention, it should be understood that the orientations or positional relationships indicated by orientation words such as "up, down" and "top, bottom" are usually based on the orientations or positional relationships shown in the accompanying drawings, and are only for To facilitate the description of the present invention and to simplify the description, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation unless stated otherwise, and therefore cannot be construed as a reference to this invention Limitation of the protection scope of the invention; the orientation words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0030] Such as figure 1 As s...

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 relates to a pure electric vehicle hill starting control strategy considering a driving style. The control strategy comprises the steps that S1 a driver steps on a brake pedal, simultaneously operates and engages a gear D, engages a gear 2 transmission into a gear 1, and determines a starting correction coefficient according to the driving style when the vehicle runs last time; S2 when it is detected that the stroke of the brake pedal starts to be decreased, a driving motor starts with the maximum driving force; S3 when it is detected that the rotating speed of the driving motor is larger than 0, the gradient value is calculated, and meanwhile the target driving force of the driving motor is calculated and adjusted; S4 when it is detected that the travel of the brake pedal becomes zero, the target driving force of the driving motor is recalculated and adjusted; and S5 whether the stroke of an accelerator pedal is 0 or not is detected, and if not, the target driving force of the driving motor is calculated according to the opening degree of the accelerator pedal and the target driving force is adjusted. The starting control strategy is more intelligent, the starting requirements of drivers of different driving styles are met, and the hill starting driving force requirements of different gradients are met.

Description

technical field [0001] The invention relates to the technical field of automatic transmission control, in particular to a hill-start control strategy for a pure electric vehicle in consideration of driving style. Background technique [0002] Pure electric vehicles have the characteristics of zero emissions and high efficiency. They are currently the most popular research field in the automotive industry, and they are also an inevitable trend of future development. The starting control strategy of the first gear of the pure electric vehicle equipped with a 2-speed transmission is similar to that of the pure electric vehicle equipped with a fixed gear ratio reducer, but there are few starting control strategies that consider driving style. In addition, the control strategy for starting on a hill is also different from the control strategy for starting on a flat ground. In the process of starting, it is usually necessary to calculate the slope value to determine the driving fo...

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
IPC IPC(8): B60L15/20
CPCB60L15/2081B60L2240/423Y02T10/72
Inventor 吴世展周鲲韩宁李欣张刘鑫段瑶
Owner 重庆军工产业集团股份有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com