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Braking system and control method of hydraulic retarder

A technology of hydraulic retarder and braking system, applied in the direction of brake type, hydraulic resistance brake, brake actuator, etc., can solve the problem of high cost, achieve the effect of reducing control cost and meeting braking requirements

Active Publication Date: 2021-12-03
北京裕峻汽车技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] When an automobile uses a hydraulic retarder for braking, it is necessary to dynamically control the target torque of the retarder according to the working conditions. The cost of the control device and control method in the prior art is relatively high

Method used

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  • Braking system and control method of hydraulic retarder
  • Braking system and control method of hydraulic retarder
  • Braking system and control method of hydraulic retarder

Examples

Experimental program
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Effect test

Embodiment

[0063] The present embodiment provides a brake system, such as figure 1 Shown, including hydraulic retarder and control apparatus 8, the control apparatus 8 comprises: a first intake valve 81, a first exhaust valve 82, pressure sensor 83 and a controller;

[0064] First intake valve 81 and the first exhaust valve 82 is at least one of the switching valve, the first intake valve 81, a first end for fluid communication with the high pressure gas tank of the vehicle, the second end of the hydraulic buffer the gear unit 3 communicates air reservoir chamber 31, a first end of the first exhaust valve 82 communicates with the reservoir 31 of the air chamber 3, a second end in communication with the atmosphere; further, the first exhaust valve 82 the second end 88 may be in communication with the atmosphere through the filter;

[0065] A pressure sensor 83 and the reservoir tank 31 is connected to the air chamber 3, for detecting the current pressure in the air chamber 31;

[0066] Input ...

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PUM

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Abstract

The invention discloses a braking system and a control method of a hydraulic retarder, and belongs to the technical field of new energy automobiles. The braking system comprises the hydraulic retarder and a control device thereof. The control device comprises a first air inlet valve, a first exhaust valve, a pressure sensor and a controller; a first end of the first air inlet valve is used for being communicated with a high-pressure air storage tank of a whole vehicle; a second end of the first air inlet valve is communicated with an air cavity of a liquid storage tank in the hydraulic retarder; a first end of the first exhaust valve is communicated with the air cavity; a second end of the first exhaust valve is communicated with the atmosphere; the pressure sensor is connected with the air cavity and used for detecting a current pressure of the air cavity; the input end of the controller is connected with the pressure sensor, and the output end of the controller is connected with the first air inlet valve and the first exhaust valve; and the controller is used for controlling opening or closing of the first air inlet valve and / or the first exhaust valve according to a detection result of the pressure sensor. According to the invention, the pressure in the air cavity is controlled through the first air inlet valve and the first exhaust valve, and then the working torque of the hydraulic retarder is controlled, so that the control cost is reduced.

Description

Technical field [0001] The present invention relates to the field of new energy vehicles, and more particularly to a method of controlling a brake system and a hydraulizing force. Background technique [0002] Hypsure, including stator, rotor, reservoir, heat exchanger. The stator and the rotor are filled with blades and are relatively arranged. The stator and the rotor are placed in the housing to form a working chamber. [0003] The upper portion of the liquid bonding tank is an air chamber, and a working fluid is present in the lower portion. When the air enters the reservoir, the gas pressure in the cavity increases, and the working fluid in the lower portion of the reservoir can rise by controlling the pipeline. Subsequently along the inlet line into the center position, excess air is discharged through the float chamber. The rotor rotation in the working state produces centrifugation, the working fluid pressure is increased, and the liquid line is refluxed to the heat excha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D57/02F16D65/14F16D66/00F16D121/02F16D125/16F16D129/02
CPCF16D57/02F16D65/14F16D66/00F16D2121/02F16D2125/16F16D2129/02
Inventor 董文龙张卫国李鸿强王朝阳李建中
Owner 北京裕峻汽车技术研究院有限公司
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