Relay valve control method and device in hill starting process and air braking system

A technology of ramp start and control device, which is applied in the direction of braking transmission, brake, transportation and packaging, etc., and can solve the problem of high cost

Active Publication Date: 2013-07-24
ZHENGZHOU YUTONG BUS CO LTD
View PDF10 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method for controlling a relay valve during a hill start, so as to solve the technical problem in the prior art that the cost of the control device required to control the action of the

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
  • Relay valve control method and device in hill starting process and air braking system
  • Relay valve control method and device in hill starting process and air braking system
  • Relay valve control method and device in hill starting process and air braking system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023]A hill start control method, which collects clutch pedal position signals and vehicle speed signals, only when the clutch pedal is at the lowest position and the vehicle speed is 0, it is determined that the vehicle is in the anti-roll braking state; when the clutch pedal is no longer at the lowest position and / or the vehicle speed When it is not 0, it is judged that the vehicle is in the release state of anti-roll brake. When the anti-roll brake is released, stop inputting high-pressure control air to the control air inlet of the relay valve to release the anti-roll brake for the vehicle. When the vehicle switches from the anti-roll brake state to the anti-roll brake release state, the delay After the set time, stop inputting high-pressure control air to the control air inlet of the relay valve, and release the anti-slip brake of the vehicle.

[0024] Such as Figure 1 to Figure 3 As shown, an embodiment of a relay valve control device during a hill start for implement...

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 discloses a relay valve control method and device in a hill starting process and an air braking system. The method comprises the following steps of: acquiring a clutch pedal position signal and a speed signal; judging that a vehicle is in an anti-slip braking state when a clutch pedal is in the lowest position and the speed of the vehicle is zero, or judging that the vehicle is in an anti-slip braking releasing state when the clutch pedal is not in the lowest position and/or the speed of the vehicle is not zero; and when the vehicle is in the anti-slip braking state, instantly inputting high pressure control gas to a control gas inlet to a relay valve to realize the anti-slip braking of the vehicle, when the vehicle is in the anti-slip braking releasing state, stopping inputting high-pressure control gas to the control gas inlet to the relay valve to release the anti-slip braking of the vehicle, or when the vehicle is switched to the anti-slip braking releasing state from the anti-slip braking state, stopping inputting high-pressure control gas to the control gas inlet to the relay valve after delaying setting time so as to release the anti-slip braking of the vehicle. The control method provided by the invention is simple, and the performance demand on the control device is low.

Description

technical field [0001] The invention belongs to the technical field of automobile control, and in particular relates to a control method for controlling the action of a relay valve in the process of assisting the driver to start on a hill, a control device for implementing the method, and a device using the control device. Air brake system. Background technique [0002] At present, passenger cars and trucks with larger load capacity are mostly braked by air pressure braking system. The structure of the air pressure braking system is as disclosed in CN202320266U, which mainly includes air storage tank, brake valve and relay valve. And the brake air chamber, the brake valve is a control device for controlling the action of the relay valve. The brake valve has an air inlet connected to the air storage cylinder and an air outlet for outputting control air to the relay valve. The relay valve has The air inlet, the control air inlet, the air outlet and the exhaust port connected ...

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): B60T13/68B60T8/171B60T8/38
Inventor 李峰张庆刚王辉何黎明孙钏
Owner ZHENGZHOU YUTONG BUS 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
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