Hill starting control method and device, vehicle control unit and vehicle

A vehicle controller and hill start technology, applied in the direction of control devices, control drives, vehicle components, etc., can solve the problems of reducing the driving comfort of the vehicle, shaking the vehicle back and forth, and entering the anti-slip slope by mistake, so as to prevent unexpected Enter the anti-slope function and improve the ride comfort of the vehicle

Pending Publication Date: 2021-09-28
BEIJING ELECTRIC VEHICLE
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a hill start control method, device, vehicle controller and vehicle to solve the problem of vehicle shaking back and forth caused by adjusting the output torque of the motor with fixed parameters, reducing the driving comfort of the vehicle and the sudden braking situation The problem of entering the anti-slope function by mistake

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
  • Hill starting control method and device, vehicle control unit and vehicle
  • Hill starting control method and device, vehicle control unit and vehicle
  • Hill starting control method and device, vehicle control unit and vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. In the following description, specific details, such as specific configurations and components, are provided only to assist in a comprehensive understanding of the embodiments of the present invention. Accordingly, those of ordinary skill in the art should recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

[0044] It should be understood that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic related to the embodiment is include...

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 provides a hill starting control method and device, a vehicle control unit and a vehicle, and relates to the technical field of vehicles. The method comprises the steps that state information of a vehicle is acquired, and according to the state information of the vehicle, an anti-sliding function is determined to be enabled; when it is determined that the anti-sliding function is enabled, the current slope state of the vehicle is obtained; and the output torque of the motor is adjusted to be 0 according to the gradient state and the parameter corresponding to the gradient state. According to the control method for hill starting, when the enabling of the anti-sliding function is determined, the slope size recognition function is added, different adjustments can be carried out according to the slope size, the smoothness of the whole vehicle is improved, the problems that the vehicle shakes back and forth and the driving comfort of the vehicle is reduced due to the fact that the output torque of the motor is adjusted by fixed parameters are solved. According to the scheme, when the anti-sliding function is determined to be enabled, the sudden brake judgment condition is added, and unexpected entering of the anti-sliding function is completely eradicated.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a control method and device for starting on a hill, a vehicle controller and a vehicle. Background technique [0002] When a pure electric vehicle starts on a slope, the vehicle will slip backward during the process from the driver releasing the brake pedal to stepping on the accelerator, posing a risk of collision with the vehicle behind. To solve this problem, the existing technology collects signals such as the motor speed signal, gear signal, and accelerator pedal opening, and controls the motor to adjust the output torque through PI parameters to stop the vehicle on the slope when the vehicle is slipping backwards. [0003] However, there are two problems in the existing technology. Problem 1: The same set of PI parameters will have different performances on different slopes. For example, if the PI parameters calibrated on a slope of 20% are used on a slope of 10%, it ma...

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
CPCB60L15/2081B60L2240/48B60L2240/421B60L2240/423B60L2240/642B60L2250/26Y02T10/72
Inventor 罗曼战平刘超
Owner BEIJING ELECTRIC VEHICLE
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