Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Safety control device of engine retarder

A safety control and engine technology, applied to engine components, machines/engines, valve devices, etc., can solve problems such as engine flameout, failure to build pressure to do work, and unbalanced working state of idle cylinders

Inactive Publication Date: 2015-10-14
上海新动力汽车科技股份有限公司
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, if the engine of the vehicle is in the idling condition and the speed is low, if the retarder is turned on to open the exhaust valve at this time, the working state in the idling cylinder will be unbalanced, causing the engine to stall; 1. Under the condition of downhill road, the engine needs to switch constantly under driving and braking conditions. When going downhill, use the retarder to brake the engine to make the engine go downhill at a steady speed, and when going uphill, it is necessary to immediately increase the fuel supply to output power. Forward, the braking state at this time will interfere with the required pressure in the cylinder to do work, resulting in the dangerous situation of slipping when the vehicle goes uphill

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
  • Safety control device of engine retarder
  • Safety control device of engine retarder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] Attached below figure 1 , 2 The present invention will be further described in detail.

[0013] Such as figure 1 , 2 The shown engine retarder safety control device, the power supply 1, the brake request switch 2, the signal processing switch device 4 and the solenoid valve 9 are sequentially connected in series to form a closed circuit circuit, and the throttle travel signal device 3 and the rotational speed signal sensor 8 are respectively connected with the signal processing switch The device 4 is connected, and the solenoid valve 9 is connected with the engine retarder actuator.

[0014] The signal processing switch device 4 includes a central processing unit (CPU) 5 , an analog-to-digital converter 6 and a relay 7 . The speed signal sensor 8 obtains the speed pulse signal from the engine and inputs the signal processing switch device 4, converts the analog signal into a digital signal through the analog-to-digital converter 6, and enters the central processing ...

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 safety control device of an engine retarder. The safety control device comprises a power supply (1), a brake request switch (2), a signal processing switching device (4) and a solenoid valve (9) which are in series connected in sequence to form a closed circuit; and a throttle stroke signal device (3) and a rotation speed signal sensor (8) are connected with the signal processing switching device (4) respectively. The solenoid valve (9) is connected with an engine retarder actuating mechanism. The signal processing switching device (4) comprises a core part central processor (CPU) (5), an analog-digital converter (6) and a relay (7). The throttle stroke signal device (3) comprises an ejector rod (10), an insulation sleeve (11), a metal plate (12), a spring (13) and a guide wire (14). By virtue of the safety control device, the engine retarder is applied better and more reliably in practical driving, so that a car driver is guaranteed more safely.

Description

technical field [0001] The present invention relates to vehicle engine retarders. Background technique [0002] With the promulgation and implementation of national safety regulations, vehicle users pay more and more attention to the safe driving of vehicles, and the configuration of engine retarder is an important method to ensure safe braking during vehicle operation. At present, it has been widely used in medium and heavy trucks, buses and special vehicles. [0003] The main working principle of the engine retarder is to release the energy in the cylinder of the engine during the working process by opening the exhaust valve, so that the engine can perform negative work to achieve the purpose of braking the vehicle. This method is based on the normal output power of the engine cylinder. In order to meet the requirements of actual use, it is necessary to avoid interference in the control conversion of positive and negative energy. That is, if the engine of the vehicle is ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): F01L13/06F01L9/04F01L9/20
Inventor 韩杰纪丽伟符兴胜邓玫陈敏陈文杰刘阳郭春文
Owner 上海新动力汽车科技股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products