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Electronically controllable power steering apparatus for vehicle

A power steering device and electronic control technology, applied in power steering mechanism, steering mechanism, fluid steering mechanism, etc., can solve problems such as difficult operation of steering wheel 113

Inactive Publication Date: 2007-04-25
MANDO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the steering wheel 113 is difficult to operate

Method used

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  • Electronically controllable power steering apparatus for vehicle
  • Electronically controllable power steering apparatus for vehicle
  • Electronically controllable power steering apparatus for vehicle

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Embodiment Construction

[0035] Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. In the following specification and drawings, the same reference numerals designate the same or similar elements, and thus repeated description of the same or similar elements will be omitted.

[0036] Fig. 7 is a sectional view showing a pressure control valve according to a first embodiment of the present invention.

[0037] As shown in FIG. 7 , the pressure control valve according to the first embodiment of the present invention includes a first valve 710 and a second valve 720 and is accommodated in a valve housing 730 . The first valve 710 includes a hollow first valve body 701, a first valve core or spool 703, and a first elastic member 705, wherein the first valve body 701 has a discharge port 223 and a supply port formed on its outer periphery. port 221, the first valve core 703 is set so as to slide in the first valve body 701, and a first channel...

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Abstract

Provided is an electronically controllable power steering apparatus for vehicle, which comprises a hydraulic pressure counter reaction unit and a pressure control valve. The pressure control valve comprises a first valve and a second valve. The first valve comprises a first valve-body having a discharge port and a supply port in its peripheral region, a first valve core which glides in the first valve-body and has a first channel which is connected to the supply port and has a downward opening, and a first elastic part which is formed on the top part of the first valve core. The second valve comprises a hollow second valve-body having a longitudinal port in its peripheral region, a second valve core which glides in the second valve-body and has a second channel which is connected to the longitudinal port and has an upward opening, a second elastic part provided on one side of the second valve core, and a solenoid provided on the other side of the second valve core. Under the control of the first valve and the second valve, drivers are capable of apperceiving an obvious sensing difference of steering deriving from speed changes of vehicles.

Description

technical field [0001] The invention relates to an electronically controlled power steering device for automobiles. More specifically, the present invention relates to an electronically controlled power steering apparatus for automobiles, the electronically controlled power steering apparatus having a pressure control valve including a first valve and a second valve, the first valve for Controlling the maximum reaction pressure of the working fluid acting on the hydraulic reaction unit, the second valve is used to adjust the reaction pressure according to the speed of the vehicle until the maximum reaction pressure is reached, thereby allowing the driver to perceive the change with the speed of the vehicle And the resulting noticeable difference in steering feel. Background technique [0002] It is well known that the driver uses the steering of the car to change the direction of motion of the car as desired. In particular, the steering device changes the center of rotatio...

Claims

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Application Information

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IPC IPC(8): B62D5/08
CPCB60Y2400/4026B62D5/0406B62D5/0412B62D5/09B62D6/02
Inventor 崔秉润
Owner MANDO CORP
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