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Pump of electronically controlled brake system

An electronically controlled braking and bushing technology, applied in the direction of brakes, etc., can solve the problems of fluid pulsating operation noise, increased manufacturing costs, abnormal tactile response of brake pedals, etc.

Active Publication Date: 2012-07-18
HL MANDO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, in the aforementioned conventional pumps for electronically controlled braking systems, due to the complicated configuration of the outlet valve, especially the configuration of the valve seat 21, the pump plug 22, etc., the manufacturing costs required for the machining and assembly of the above components are insurmountable. Increase
[0013] In addition, commonly used pumps generate operating noise due to the pulsation of the fluid flowing through the outlet channel due to the opening / closing of the outlet valve
This fluid pulsation can also cause an unusual tactile response from the brake pedal

Method used

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  • Pump of electronically controlled brake system
  • Pump of electronically controlled brake system
  • Pump of electronically controlled brake system

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Embodiment Construction

[0032] Exemplary embodiments of the present invention will now be described in detail, which are illustrated in the drawings, wherein like reference numerals refer to like elements throughout. The embodiments are described below to explain the present invention by referring to the figures.

[0033] figure 2 is a sectional view of a pump for an electronically controlled brake system according to a first embodiment of the present invention. image 3 for inclusion in figure 2 A perspective view of the casing inside the pump is shown.

[0034] Such as figure 2 As shown, the electronically controlled braking system according to the invention basically comprises a pair of piston pumps 40 which are opposite to each other with respect to the eccentric shaft 30 of the motor 31 . The pump 40 performs a suction operation with a phase difference of 180° from each other when the eccentric shaft 30 of the motor 31 rotates eccentrically. Since the pair of piston pumps 40 aligned in l...

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Abstract

A pump of an electronically controlled brake system. The pump includes a bore formed in a modulator block and connected with a suction port and a discharge port, a piston installed in the bore in a reciprocating movable manner and defining an inlet path therein, an inlet valve to open or close an exit-side end of the inlet path according to a position of the piston, and an outlet valve provided at one side of the bore, operations of the inlet and outlet valves being contrary to each other. The outlet valve includes a valve seat, a sleeve to surround the valve seat, an outlet ball interposed between the sleeve and the valve seat and used to open or close a path defined in the valve seat, and a valve cap provided at one side of the sleeve to isolate an interior from an exterior of the bore.; One or more of the valve sheet, sleeve, and valve cap are formed by press-forming, to achieve improved assembly efficiency and reduced manufacturing costs.

Description

technical field [0001] The present invention relates to a pump for an electronically controlled braking system, and more particularly to such a pump for an electronically controlled braking system in which an outlet valve has a simplified configuration, thereby achieving a reduction in manufacturing costs. Background technique [0002] Generally, the electronically controlled braking system has the function of effectively preventing the wheels from slipping when the vehicle brakes, starts quickly or accelerates suddenly. The brake system includes a plurality of solenoid valves to control the hydraulic brakes that brake hydraulic pressure is transmitted to the wheels, a pair of low-pressure and high-pressure accumulators to temporarily store the oil discharged from the hydraulic brakes, and are arranged between the low-pressure and high-pressure accumulators A pair of pumps that are operated by a motor, and an ECU that controls the solenoid valves and the motor. The aforemen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T8/40
CPCB60T8/4031
Inventor 金容甲
Owner HL MANDO CORP
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