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Hydrostatic transmission wheeled vehicle automatic parking system and control method

A technology of automatic parking and control method, applied in the direction of automatic starting device, etc., can solve the problems of vehicle power loss, component wear, driving fatigue, etc., and achieve the effect of low cost, maintaining sealing pressure, and reducing workload

Inactive Publication Date: 2018-07-24
HUAIYIN INSTITUTE OF TECHNOLOGY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing parking brake technology increases the workload of the driver, which can easily lead to driving fatigue; after the vehicle is turned off, many drivers forget to pull up the parking brake, which can easily lead to accidents such as rolling; when the vehicle is running, many drivers Forgetting to disengage the parking brake can cause unnecessary power loss and component wear on the vehicle

Method used

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  • Hydrostatic transmission wheeled vehicle automatic parking system and control method
  • Hydrostatic transmission wheeled vehicle automatic parking system and control method
  • Hydrostatic transmission wheeled vehicle automatic parking system and control method

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Embodiment Construction

[0017] The present invention is described in detail below in conjunction with accompanying drawing:

[0018] see figure 1 As shown, an automatic parking system for a hydrostatic transmission wheeled vehicle, including the original engine 13, hydraulic oil tank 11, oil filter 12, variable pump 2, upper oil circuit 3, and lower oil circuit of all hydrostatic transmission wheeled vehicles Road 10, variable motor 8, transaxle 7, transmission controller 1 and CAN bus 4, and parking brake control unit 6, solenoid valve drive circuit 5, hydraulic lock 9 included in the present invention. The hydraulic lock 9 includes a two-position two-way electromagnetic reversing valve 93 , a first hydraulic control check valve 91 and a second hydraulic control check valve 92 . The engine 13, the variable pump 2, the hydraulic lock 9, the variable motor 8 and the drive axle 7 are connected in sequence. The upper oil passage 3 is connected to the oil outlet of the variable pump 2, the lower oil pa...

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PUM

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Abstract

The invention provides a hydrostatic transmission wheel type automatic parking system for a vehicle and a control method. According to the system, a parking braking control unit, an electromagnetic valve drive circuit and a hydraulic lock are additionally arranged on an original hydrostatic transmission system. The hydraulic lock is composed of a two-position two-way electromagnetic reversing valve, a first hydraulic control one-way valve and a second hydraulic control one-way valve. An engine, a variable pump, the hydraulic lock, a variable motor and a drive axle are sequentially connected. The parking braking control unit, the electromagnetic valve drive circuit and the two-position two-way electromagnetic reversing valve are sequentially connected through electric signals. By the adoption of the system, the hydraulic lock is adopted for parking braking, taper valve elements of the hydraulic control one-way valves are used for sealing, the higher the oil pressure is, the tighter the taper valve elements press, the sealing pressure can be maintained for a long time through the system, full-automatic control over parking braking is achieved, and reliability is high.

Description

technical field [0001] The invention relates to the technical field of parking brakes for wheeled vehicles, in particular to an automatic parking system and a control method for a hydrostatic transmission wheeled vehicle. Background technique [0002] Current hydrostatic transmission wheeled vehicles all use manual parking brake (commonly known as hand brake) for parking brake, which needs to rely on manpower during operation. The existing parking brake technology increases the workload of the driver, which can easily lead to driving fatigue; after the vehicle is turned off, many drivers forget to pull up the parking brake, which can easily lead to accidents such as rolling; when the vehicle is running, many drivers Forgetting to release the parking brake will result in unnecessary loss of vehicle power and component wear. It can be seen that in this technical field, the parking brake technology of the hydrostatic transmission wheeled vehicle needs to be improved. Content...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T7/12
CPCB60T7/12
Inventor 常绿钟壹牟思远
Owner HUAIYIN INSTITUTE OF TECHNOLOGY
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