Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Control method and system for wheel slipping

A technology of wheel slip and control method, applied in the field of wheel slip control methods and systems, can solve problems such as reducing driving experience, false alarms, etc., and achieve the effects of improving driving experience, improving safety, and preventing slipping

Active Publication Date: 2020-04-10
WEICHAI POWER CO LTD
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that in the traditional technology, when judging that the vehicle is slipping, there are false alarms, which reduces the driving experience

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
  • Control method and system for wheel slipping
  • Control method and system for wheel slipping
  • Control method and system for wheel slipping

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] see figure 1 , figure 1 It is an example diagram of a wheel slip control method of the present application, the method comprising:

[0047] Step 101: Obtain the first rate of change of the rotational speed output by the powertrain system under the current output torque of the vehicle.

[0048] As an implementation manner, the first rate of change of rotational speed output by the vehicle powertrain system may be acquired through a sensor installed on the vehicle.

[0049] Step 102: If the first rate of change of rotational speed is greater than the standard rate of change of rotational speed, determine that the wheels of the vehicle are slipping.

[0050]As an implementation manner, the acquired rotational speed change rate output by the powertrain system under the current torque is compared with a standard rotational speed change rate, and if it is greater than the standard rotational speed change rate, it is determined that the wheels of the vehicle are slipping.

...

Embodiment 2

[0056] see figure 2 , figure 2 It is an example diagram of another wheel slip control method of the present application. The second embodiment of the present application is introduced on the basis of the first embodiment of the present application. The same or similar parts as the first embodiment of the present application are implemented in this application. It is not repeated in Example 2. The method includes:

[0057] Step 201-Step 203: Refer to Embodiment 1 of this application.

[0058] Step 204: Obtain the second rate of change of rotational speed output by the powertrain system under the current output torque of the vehicle; if the second rate of change of rotational speed is greater than the standard rate of change of rotational speed, determine the vehicle controlled by the first output axle shaft and the The wheels controlled by the second output axle shaft all slip; the output shaft speeds of the front axle and the rear axle are reduced to the second preset val...

Embodiment 3

[0062] see image 3 , image 3 It is an example diagram of another wheel slip control method of the present application. The third embodiment of the present application is introduced on the basis of the second embodiment of the present application. The same or similar parts as the second embodiment of the present application are implemented in the present application. Example 3 will not be repeated.

[0063] Step 301-Step 303: Refer to Embodiment 2 of this application.

[0064] Step 304: Judging whether the inter-wheel differential lock has been fixed.

[0065] As an implementation manner, after the first preset time, it is judged by the first displacement sensor whether the inter-wheel differential lock has finished fixing the first output half shaft and the second output half shaft; if not , outputting power to the first output half-shaft or the second output half-shaft by controlling the powertrain system; then execute step 303 .

[0066] It should be noted that when th...

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 embodiment of the invention discloses a control method for wheel slipping. The control method specifically comprises the following steps: acquiring a first rotating speed change rate output by a power assembly system under the current output torque of a vehicle; if the first rotating speed change rate is greater than a standard rotating speed change rate, determining that the wheels of the vehicle slip, the standard rotating speed change rate being obtained on the basis of the corresponding relation between a pre-configured output torque and a rotating speed change rate output by the powerassembly system under the output torque; and reducing the rotating speed of the output shafts of a first output half shaft and a second output half shaft to a first preset value, and controlling thefirst output half shaft and the second output half shaft on the two sides of an inter-wheel differential lock to be fixed by utilizing the inter-wheel differential lock connected with the first outputhalf shaft so as to control the wheels to prevent slipping. The vehicle can recover the driving capability as soon as possible and get out of trouble. Meanwhile, the loss of the tire during slippingis reduced, and the service life of the wheel is prolonged. The embodiment of the invention further discloses a control system for wheel slipping.

Description

technical field [0001] The present application relates to the technical field of vehicles, in particular to a method and system for controlling wheel slippage. Background technique [0002] With the development of vehicle technology, most vehicles are equipped with differential locks, which can control the vehicle to get out of the predicament of skidding after skidding occurs. In the prior art, the condition for judging vehicle skidding is that as long as the speed difference between the wheels on both sides of the vehicle is detected, the driver will be prompted that the vehicle is skidding and whether to open the differential lock. There will be a speed difference between the wheels of the wheel, and in this case, the vehicle does not send a slip phenomenon. It can be seen that in the traditional technology, when judging that the vehicle is slipping, there are false alarms, which reduces the driving experience. SUMMARY OF THE INVENTION [0003] In order to solve the a...

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): B60W30/18B60K23/04
CPCB60K23/04B60K2023/043B60W30/18145B60W30/18172B60W2710/12
Inventor 桂经良贾艳艳
Owner WEICHAI POWER CO LTD
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
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