A motor torque following method when an electric vehicle exits a stationary slope

A motor torque, electric vehicle technology, applied in the direction of electric vehicles, control drive, power management, etc., can solve problems affecting vehicle response time, driving experience, driving safety, etc., to achieve fast drive torque output, timely response, and fast The effect of response

Active Publication Date: 2018-12-18
ZONSON SMART AUTO CORP
View PDF25 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the first method has the following disadvantages: different vehicle loads and different parking slopes require different actual parking torques, and the greater the actual parking torque, the longer the waiting time, which affects the driving experience; and When the actual on-slope torque is greater, the driver needs to step on the accelerator deeper. Then, when the driver steps

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
  • A motor torque following method when an electric vehicle exits a stationary slope
  • A motor torque following method when an electric vehicle exits a stationary slope

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] Such as figure 1 As shown, the present invention provides a motor torque following method when an electric vehicle exits a standing slope, including:

[0028] Acquire the driver's accelerator opening percentage accpd, obtain the actual on-slope torque Tq1 at the time of the current on-slope, and obtain the maximum acceptable driving torque Tqmax of the current motor.

[0029] 1. Obtain the current actual standing torque as Tq1=500N•m.

[0030] 2. Obtain the maximum output driving torque of the motor as Tqmax=2800N·m.

[0031] 3. When the driver steps on the accelerator for the first time and needs to exit the parking mode and drive the vehicle:

[0032] a) The current throttle opening percentage increases from 0...

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 aims to provide a motor torque following method when an electric vehicle exits a standing slope, which makes the response of the electric vehicle faster and starts more smoothly. The method of the invention comprises the following steps: (1) detecting the actual standing slope torque of the automobile when the automobile is currently stationed on the slope; (2) detecting the throttleopening percentage when the driver presses the throttle; (3) according to the sum of the actual standing slope torque and the torque value obtained by the throttle opening percentage when the automobile is currently stationed on the slope, as the motor driving torque value currently requested; (4) outputting the torque according to the motor drive torque value according to the current request; (5) When the throttle opening percentage reaches 100% or 0%, exiting the torque following mode, and the subsequent current motor drive torque request is outputted according to the normal torque output.The invention can be applied to the automobile control field.

Description

technical field [0001] The invention relates to the field of new energy vehicle control, in particular to a motor torque following method when an electric vehicle exits a parking slope. Background technique [0002] In the existing technology, parking on the slope has been one of the standard functions of new energy vehicles. When the existing electric vehicle is on the slope, when the driver steps on the accelerator to apply for exiting the parking torque, there are two ways to output the motor drive torque. The first method is: the motor needs to wait for the motor driving torque request to be greater than the actual parking torque before exiting the parking slope mode, execute the motor driving torque request of the vehicle controller, and thus enter the motor driving mode to drive the electric vehicle to run; the second method The method is: the moment the driver steps on the accelerator, the vehicle exits the parking slope mode, and the motor outputs the motor drive req...

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 丘东海肖华李志坚王桂友曾水旺罗文科许锦智
Owner ZONSON SMART AUTO CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap