Check patentability & draft patents in minutes with Patsnap Eureka AI!

Vehicle brake control method and system

A vehicle braking and control method technology, which is applied in the field of vehicle braking control methods and systems, and can solve problems such as vehicle loss of steering ability, vehicle tail flicking, and front wheel locking

Active Publication Date: 2015-08-26
BEIJING BORGWARD AUTOMOBILE CO LTD
View PDF6 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For this reason, the technical problem to be solved by the present invention is that the participation of the prior art regenerative braking will have a certain impact on the original braking system, and improper application of the regenerative braking torque will cause safety problems, for example, if the front wheel If the applied torque is too large, it will cause the front wheels to lock, and the vehicle will lose its steering ability; if the applied torque is too large, it will cause lock, and the vehicle will flick, so a control method and system for vehicle braking are proposed to solve the problem

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
  • Vehicle brake control method and system
  • Vehicle brake control method and system
  • Vehicle brake control method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A method for controlling regenerative braking of a vehicle according to an embodiment of the present invention is applicable to a front-wheel drive vehicle, and includes the following steps:

[0044] Step 1. Measure the current load of the vehicle.

[0045] Step 2. Adjust the front and rear wheel braking force distribution adjustment device. The vehicle in this embodiment adopts a hydraulic load-sensing proportional valve. The purpose of adjusting the hydraulic load-sensing proportional valve is to make it conform to the standard first and second wheel brake braking force distribution relationship under the current load of the vehicle.

[0046] The so-called braking force distribution relationship between the first and second wheel brakes refers to the braking force distribution relationship between the front and rear wheel brakes in the technical field. Further, the braking force distribution relationship between the front and rear wheel brakes is expressed by the fron...

Embodiment 2

[0058] A method for controlling regenerative braking of a vehicle according to an embodiment of the present invention is applicable to a rear-wheel drive vehicle, and includes the following steps:

[0059] Step 1. Measure the current load of the vehicle.

[0060] Step 2. After adjusting the front and rear wheel braking force distribution adjustment device, the vehicle in this embodiment adopts a hydraulic load-sensing proportional valve, which is suitable for rear-wheel drive vehicles. The purpose of adjusting the hydraulic load sensing proportional valve is to make it conform to the standard rear and front brake force distribution curve under the current load of the vehicle.

[0061] Here, the standard rear-front brake force distribution curve is obtained by the following steps:

[0062] Step 2.1. Obtain the braking force distribution curve of the rear and front wheel brakes determined by the characteristics of the hydraulic load-sensing proportional valve under the current ...

Embodiment 3

[0072] A vehicle regenerative braking control system according to an embodiment of the present invention is suitable for front-wheel drive vehicles, such as Figure 4 As shown, the front and rear wheel braking force distribution adjustment device of the vehicle adopts a hydraulic load-sensing proportional valve 100, and the control system includes a measurement unit, an adjustment unit, a query unit, a calculation unit and a control unit.

[0073] The measuring unit is used to measure the current load of the vehicle. Such as Figure 4 As shown, the measuring unit is composed of a load measuring sensor 200 and a signal processing unit 300 thereof. The load measuring sensor 200 can be a displacement sensor or a pressure sensor, and it is installed between the lever 120 and the valve body 130 of the hydraulic load sensing proportional valve 100 of the vehicle. tension spring. In this way, when the load of the vehicle changes, there will be a change in relative displacement bet...

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 vehicle brake control method and system. The control method comprises steps as follows: the current load of a vehicle is measured; first and second wheel braking force distributing and adjusting devices are adjusted so as to meet the standard first and second wheel brake braking force distribution relation under the current load of the vehicle; an ideal second wheel brake braking force value corresponding to the current first wheel brake braking force value and a standard second wheel brake braking force value of the vehicle are acquired according to the ideal first and second wheel brake braking force distribution relation and the standard first and second wheel brake braking force distribution relation under the current load of the vehicle; the difference between the ideal second wheel brake braking force value corresponding to the current first wheel brake braking force value and the standard second brake braking force value of the vehicle is calculated; when brake torque is newly added, the value of the newly added brake torque is controlled within the difference, so that locking of second wheels is prevented. The safety problem caused by improper application of the newly added brake torque is solved.

Description

technical field [0001] The invention relates to the technical field of vehicle braking, in particular to a control method and system for vehicle braking. Background technique [0002] With the continuous development of the automobile industry, safety has increasingly become an important criterion for automobile design. At present, ABS (ABS is the abbreviation of Auti-Lock Braking System in English, called "anti-lock brake system" in Chinese) has become the standard device of automobiles. More than 85% of the cars produced in the world use ABS. Cars are also equipped with ABS. However, some trucks, sanitation vehicles and economical SUVs are not equipped with ABS. These vehicles generally adjust the proportion of front braking force by configuring a load-sensing proportional valve to prevent the vehicle from locking up during emergency braking. [0003] The load-sensing proportional valve is generally divided into a hydraulic load-sensing proportional valve and a pneumatic ...

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): B60T8/30B60T8/00B60T11/16
CPCB60T8/171B60T8/30B60T11/16
Inventor 孙四军
Owner BEIJING BORGWARD AUTOMOBILE CO LTD
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