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Frequency-and-voltage conversion chip for electronic control hydraulic steering device

A steering device and electronically controlled hydraulic technology, which is applied in the direction of electric steering mechanism, steering mechanism, steering rod, etc., can solve the problems of difficult control, high product cost, and difficulty in obtaining driver's power-assisted feel, etc., and achieve simple circuit, long life, The effect of improving safety and handling stability

Inactive Publication Date: 2014-03-12
JIANGSU GANGYANG STEERING SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned solutions are generally difficult to control, the product cost is high, and the structure is complicated. It is difficult to obtain the good power-assisted feel required by the driver.

Method used

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  • Frequency-and-voltage conversion chip for electronic control hydraulic steering device
  • Frequency-and-voltage conversion chip for electronic control hydraulic steering device

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Embodiment Construction

[0025] specific implementation

[0026] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0027] In the present invention, the control device can perform combined control of the electromagnetic valve according to the sensor signal in four combinations: fully closed, single open, and fully open. In use of the present invention, when the driver just starts the car, it needs a relatively large At this time, the closing of the two solenoid valves of the solenoid valve combination unit does not function as a bypass. As the vehicle speed increases, the controller opens one of the solenoid valves with a smaller diameter according to needs. Larger solenoid valves open all valves at high speeds to reduce the hydraulic oil flow into the steering control valve, thereby increasing the steering force, avoiding loss of road feel, and improving the safety performance of the entire steering system. In addition, for the working co...

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Abstract

The invention relates to the field of electronic control hydraulic steering systems of automobiles, and discloses a frequency-and-voltage conversion chip for an electronic control hydraulic steering device. Automotive speed signals obtained from an instrument panel can be conditioned to form ideal square waves, the square waves are converted into level signals through the frequency-and-voltage conversion chip, and the level signals change along with the frequency.

Description

technical field [0001] The invention relates to the field of electronically controlled hydraulic steering systems of automobiles, in particular to a bypass device capable of changing the pressure and flow of liquid flowing into a rotary valve of a power steering gear and a control device thereof, which is suitable for commercial vehicles such as large passenger cars and trucks . Background technique [0002] At present, the hydraulic power steering system is widely used in the field of commercial vehicles, which only has fixed hand force characteristics. When the car is running at low speed, the steering wheel has better portability. When the speed is faster, the steering oil pump The speed also rises, resulting in an increase in the flow of hydraulic oil, resulting in greater power assistance, making the steering wheel too light to turn, easy to lose the sense of road, causing the problem of "floating" in the car, reducing the safety performance of commercial vehicles at hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/04B62D6/02
Inventor 宋海兵谢军王春宏谭国强凌志强张军徐兆峰
Owner JIANGSU GANGYANG STEERING SYST