Vehicle gear selecting and parking brake combined control method

A technology of parking brake and joint control, applied in the direction of hydraulic brake transmission, etc., can solve the problems of complex system, hidden safety hazards, inability to realize parking brake, etc., and achieve the effect of simplifying the system

Active Publication Date: 2018-04-17
靖江市恒大汽车部件制造有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

China's authorized announcement number is CN203819220U utility model patent specification discloses a parking brake system for trailers used in coal mines, which solves the problem that the trailer also has brakes when the tractor is parked and braked, but this system needs to be set. Moving valve, air control valve 10, relay valve 11, one-way valve 12, second air bag 13, generally vehicles also need to be equipped with gear selection operation valve, so the system is more complicated
In addition, it cannot be realized that the vehicle has a parking brake when it is hung in neutral, so there is a potential safety hazard.

Method used

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  • Vehicle gear selecting and parking brake combined control method

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Embodiment Construction

[0009] See figure 1 , the vehicle gear selection, parking brake joint control system includes fuel tank 1, filter 2, hydraulic pump 3, safety valve 4, tractor parking brake 11, tractor parking hydraulic cylinder 12, hydraulic control air valve 13, air bag 14 , afterburner 15, also comprises gear selection operating valve 5, forward gear clutch 6, reverse gear clutch 7, shuttle valve 8, hydraulic control valve 9, accumulator 10, trailer parking brake 16, trailer parking hydraulic cylinder 17. The select operation valve 5 includes a joystick 5-1.

[0010] The oil inlet port of the hydraulic pump 3 is connected to the oil tank 1 through the filter 2, the oil outlet port of the hydraulic pump 3 is connected to the oil inlet port P of the gear selection operation valve 5, and the execution port A of the gear selection operation valve 5 passes through two oil The passages are respectively connected with the A port of the forward gear clutch 6 and the shuttle valve 8, the execution ...

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Abstract

The invention provides a vehicle gear selecting and parking brake combined control method. An adopted system comprises a fuel tank, a filter, a hydraulic pump, a safety valve, a gear selecting operation valve, a forward gear clutch, a backward gear clutch, a shuttle valve, a hydraulic control valve, an energy accumulator, a tractor parking brake, a tractor parking hydraulic cylinder, a hydraulic control air valve, an air pocket, a booster, a trailer parking brake and a trailer parking hydraulic cylinder, wherein the gear selecting operation valve comprises an operation rod. A tractor and a trailer can achieve parking brake when a vehicle is put into a neutral gear, accidents are not easily caused when the vehicle is parked on a ramp, the trailer can achieve parking brake without a tractorparking brake valve, a pneumatic control valve, a relay valve, a one-way valve and a second air pocket when the tractor realizes parking brake, and the system of the vehicle is simplified.

Description

[0001] This application is a divisional application with the application number 2015110094692 and the title of the invention is a combined control system for vehicle gear selection and parking brake. technical field [0002] The invention relates to the technical field of vehicle control, in particular to a combined control system for vehicle gear selection and parking brake. Background technique [0003] Trailers include tractors and trailers. Some trailers need to work when they are parked. At this time, the vehicle needs to be hung in neutral and the parking brake valve of the tractor is operated for parking brake. In practice, it often happens that the tractor is not operated. When the parking brake valve is used for parking brake, the vehicle will be parked. At this time, if the vehicle is on a slope, accidents are likely to occur. In addition, when working on a slope with a large slope, both the tractor and the trailer must have parking brakes to ensure that the vehicl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T11/24
CPCB60T11/24
Inventor 朱明德
Owner 靖江市恒大汽车部件制造有限公司
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