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Electric cylinder device with autonomous braking and parking braking functions, braking system and braking control method

A technology of autonomous braking and braking controller, applied in the direction of transmission control, automatic starting device, braking transmission device, etc., can solve the problems of high cost and complex structure control, and achieve low cost, fast braking response, The effect of convenient arrangement

Pending Publication Date: 2019-08-06
南京经纬达汽车科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing types of motor vehicles are equipped with two systems, the service brake system and the parking brake system, and their structures and corresponding controls are relatively complicated and costly.

Method used

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  • Electric cylinder device with autonomous braking and parking braking functions, braking system and braking control method
  • Electric cylinder device with autonomous braking and parking braking functions, braking system and braking control method
  • Electric cylinder device with autonomous braking and parking braking functions, braking system and braking control method

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Embodiment Construction

[0039] The electric cylinder device with integrated braking and parking functions, the braking system and the braking control method of the present invention can satisfy the autonomous braking function and parking function of autonomous vehicles such as unmanned logistics distribution vehicles.

[0040] The braking device, braking system and braking control method of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0041] see figure 1 with figure 2 , The electric cylinder device mainly includes an electric cylinder 1 and a brake controller 2 . The electric cylinder 1 includes two housings that form a cylindrical cavity inside and are connected together, namely the main cylinder housing 118 and the screw housing 109, and the motor (101). The motor 101 is arranged on the side of the screw housing 109 away from the main cylinder housing 118 .

[0042]A piston 119 is slidably disposed in the master cylinder housing 118, a...

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PUM

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Abstract

The invention discloses an electric cylinder device with autonomous braking and parking braking functions. The electric cylinder device with the autonomous braking and parking braking functions comprises a main cylinder shell, a screw rod shell and a motor, wherein a piston is slidably arranged in the main cylinder shell; a first cavity D and a second cavity A are formed between the front end of the piston and the main cylinder shell as well as between the middle part of the piston and the main cylinder shell; an inner hole is formed in the middle of the back end of the piston; a compensatinghole C for communicating a liquid storage tank and the first cavity D, a liquid supply hole B for communicating the liquid storage tank and the second cavity A, and a liquid drainage hole E for communicating the first cavity D and a wheel brake are formed in the main cylinder shell; a packing cup is arranged on the front end surface of the piston; a screw rod pair and a planetary gear reduction mechanism are arranged in the screw rod shell; the front end of a screw rod stretches into the inner hole; a gap is left between the front end surface of the screw rod and the inner hole; and the motorprovides rotation power for the screw rod through the planetary gear reduction mechanism. The invention further discloses a braking system and a braking control method thereof. The braking system hasthe autonomous braking and parking braking functions, and is simple in structure, low in cost and fast in braking response.

Description

technical field [0001] The invention belongs to the technical field of automobile braking systems, and in particular relates to an electric cylinder device with functions of autonomous braking and parking braking, a braking system and a braking control method. Background technique [0002] Automobile braking system is closely related to automobile driving safety. In the hydraulic braking system of traditional automobiles, the driver applies braking pressure to the wheel cylinders of each wheel brake by depressing the brake pedal, so as to achieve braking and decelerate the vehicle. Smart car systems such as advanced driver assistance systems (ADAS) and automated driving systems (ADS) require braking systems that can autonomously brake the vehicle, that is, apply the brakes to some or all of the wheels without depressing the brake pedal. At present, most of the brake systems that can implement autonomous braking use electric power assist, and retain brake control devices suc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D65/14F16H63/34B60T13/74B60T7/12F16D123/00F16D121/04F16D121/24F16D125/06F16D125/08F16D125/40F16D125/50
CPCB60T7/12B60T13/745B60T13/746F16D65/14F16D2121/04F16D2121/24F16D2123/00F16D2125/06F16D2125/08F16D2125/40F16D2125/50F16H63/345F16H63/3466F16H63/3483
Inventor 邓伟文丁能根张凯
Owner 南京经纬达汽车科技有限公司
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