Pneumatic type integrated electronic parking brake valve with emergency operation

A technology integrating electronics and emergency operation, applied in the direction of brakes, brake transmissions, vehicle components, etc., can solve problems such as reducing the safety of vehicle use, and achieve the effect of shortening power-on time, extending service life, and long service life

Active Publication Date: 2013-05-01
NANJING AISIFU AUTOMOBILE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 2. Due to the cancellation of the hand brake handle in the cab, if the parking brake system fails, for example, due to failures such as insufficient power supply of the battery, burning of the coil of the solenoid valve, etc., the parking brake will not be able to be performed while the vehicle is driving, which will reduce the safety of the vehicle. safety of use

Method used

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  • Pneumatic type integrated electronic parking brake valve with emergency operation
  • Pneumatic type integrated electronic parking brake valve with emergency operation
  • Pneumatic type integrated electronic parking brake valve with emergency operation

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Embodiment Construction

[0019] Such as figure 1 , figure 2 As shown, the pneumatic integrated electronic parking brake valve with emergency operation of the present invention includes a main valve 50, a first pilot valve 51, and a second pilot valve 52. The main valve 50 is opened with an exhaust gas communicating with the atmosphere. Port A, the charging port B communicating with the air cylinder, and the bleed port C communicating with the parking brake chamber. The main valve 50 is provided with the exhaust port A and the bleed port C through its position change. Or the main valve core 55 that connects the charging port B and the bleed port C. The first pilot valve 51 is provided with an air path communicating with the main valve 50, and a brake air inlet communicating with the air path on the side of the air reservoir Port P1 and the brake exhaust port 01 communicating with the atmosphere. The first pilot valve 51 is also provided with a position that can be changed by turning on and off the parki...

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Abstract

The invention discloses a pneumatic type integrated electronic parking brake valve with emergency operation. The pneumatic type integrated electronic parking brake valve comprises a main valve, a first guide valve and a second guide valve, wherein the main valve is provided with an exhaust hole communicated with atmosphere, an inflation hole communicated with an air channel of an air cylinder side, and an air vent communicated with an air channel of a parking brake air chamber side. The pneumatic type integrated electronic parking brake valve also comprises an emergency brake mechanism and an emergency brake relief mechanism, wherein one end of the emergency brake mechanism is connected with a first valve core in the first guide valve, the other end of the emergency brake mechanism is connected with an emergency brake pull ring in a driver cab through a stay wire, one end of the emergency brake relief mechanism is connected with a second valve core in the second guide valve, and the other end of the emergency brake relief mechanism is connected with an emergency brake relief pull ring in the driver cab through a stay wire. The pneumatic type integrated electronic parking brake valve can be used in a pneumatic parking brake device, can be operated in the driver cab in emergency when a pneumatic type electronic parking system fails, and realizes safe and reliable parking brake or brake relief.

Description

Technical field [0001] The invention belongs to the technical field of automobile brake devices, in particular to a pneumatic integrated electronic parking brake valve with emergency operation during parking braking. Background technique [0002] At present, the manual pneumatic parking brake device of medium and heavy-duty vehicles mostly adopts the principle of "cut-off brake", which exhausts the parking brake chamber through the hand brake to produce a parking brake. In order to achieve and release the parking brake, electromagnetic reversing valves are usually used to complete the intake and exhaust operations. The commonly used two-position three-way solenoid valve is generally single electric control (ie single coil), which is divided into two types: normally closed and normally open. The operating principle of the normally closed two-position three-way electromagnetic directional valve is: the control coil is energized and the gas circuit is connected; once the coil is de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/70
Inventor 王显会王洪亮皮大伟周云波郑婷
Owner NANJING AISIFU AUTOMOBILE TECH
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