Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Single pedal mode control method of vehicle

A mode control, single-pedal technology, applied to vehicle components, arrangement of power plant control mechanisms, instruments, etc., can solve problems such as uncomfortable driving experience, irrelevant real-time status, and obscure energy recovery, to ensure controllability and safety. performance, quality driving experience, and the effect of quality driving experience

Active Publication Date: 2020-07-14
智新控制系统有限公司
View PDF22 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages of this type of method: the energy recovery intervention conditions are not related to the real-time state of the vehicle and the recovery torque is too large, causing the vehicle to enter the energy recovery abruptly, and the acceleration and deceleration fluctuate greatly, resulting in uncomfortable driving experience such as dizziness
In addition, some control methods blindly pursue greater energy recovery, which will cause the driver to fail to provide the maximum driving force quickly when the driver needs to overtake the acceleration or accelerate to avoid actions, which may bring safety hazards

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
  • Single pedal mode control method of vehicle
  • Single pedal mode control method of vehicle
  • Single pedal mode control method of vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments to facilitate a clear understanding of the present invention, but they do not limit the present invention.

[0036] Such as figure 1 As shown, the process flow of a single-pedal mode control method for a vehicle of the present invention is as follows:

[0037] Taking the balanced driving force of the vehicle at each speed range as the Z axis, taking the accelerator pedal opening as the Y axis, and taking the current speed as the X axis, a single-pedal mode control Map is constructed;

[0038] Set the exit threshold K% of the accelerator pedal opening associated with the single-pedal mode control Map;

[0039] If the opening of the accelerator pedal is less than K%, then the torque value of the Map is controlled in the single-pedal mode as the control torque of the single-pedal mode;

[0040] If the opening of the accelerator pedal is g...

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 the technical field of vehicle control, in particular to a single pedal mode control method of a vehicle. The method comprises the steps: a single pedal mode control Map is constructed with the balance driving force of a vehicle in each vehicle speed section as the Z axis, the accelerator pedal opening degree as the Y axis and the current vehicle speed as the X axis; an exit threshold value K% of the single pedal mode control Map associated accelerator pedal opening degree is set; if the opening degree of the accelerator pedal is smaller than K%, the torque value of the single pedal mode control Map serves as the control torque of the single pedal mode; and if the accelerator pedal opening degree is larger than or equal to K%, the single-pedal mode is quitted, themaximum output torque corresponding to the current accelerator pedal opening degree is calculated through a normal driving algorithm according to the motor external characteristic curve, and the maximum output torque serves as the control torque of the vehicle. By means of the method, the single pedal mode is ensured to be quitted stably and rapidly when the urgent acceleration request of the driver is detected, corresponding driving force is provided to achieve driving actions such as acceleration overtaking or urgent avoidance, and controllability and safety of the vehicle are guaranteed.

Description

technical field [0001] The invention relates to the technical field of vehicle control, in particular to a single-pedal mode control method for a vehicle. Background technique [0002] Regenerative braking energy recovery is a significant advantage of new energy vehicles and an important way to improve cruising range. There are two energy recovery methods for new energy vehicles. One is to let the vehicle coast by releasing the accelerator pedal during driving to recover energy from coasting; the other is to step on the brake pedal during driving to recover braking energy. One-pedal mode (OPM), as the name implies, uses one pedal (accelerator pedal) to control the normal driving of the vehicle. Depress the accelerator pedal to control the vehicle to accelerate, and release the accelerator pedal to decelerate the vehicle with the braking force provided by coasting energy recovery. In this way, the vehicle can fully recover energy during driving, improve the cruising range, ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B60K26/02G06F30/20G06F30/15G06F119/14
CPCB60K26/02
Inventor 谢桥郑春阳刘秀锦
Owner 智新控制系统有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com