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Multi-stage steering system of automobile and automobile applying multi-stage steering system

A technology of steering system and automobile, which is applied in the field of automobile steering system and the application of the system. It can solve the problems of inability to provide steering torque requirements for medium-sized and large commercial vehicles, increase noise, increase fuel consumption, etc., and achieve good power steering characteristics, Steering effortless, easy-to-control effects

Active Publication Date: 2016-08-24
ZHEJIANG GEELY HOLDING (GROUP) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The existing mechanical hydraulic power steering system and electronic hydraulic power steering system cannot meet the comfort of low-speed driving and the safety of high-speed driving at the same time, and the fuel consumption increases and the noise increases with the increase of power; 1. The steering torque requirements required by large commercial vehicles, and the cost is relatively high. In order to overcome these defects, the present invention provides a vehicle that can satisfy low-speed comfort and high-speed safety to a certain extent, and solve fuel consumption and noise to the greatest extent. Problems, at the same time the technology is mature, the control is simple, the low-cost automobile multi-stage steering system, and the automobile using the multi-stage steering system

Method used

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  • Multi-stage steering system of automobile and automobile applying multi-stage steering system

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Experimental program
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Effect test

Embodiment 1

[0025] A fuel-powered vehicle configured with an internal combustion engine, the vehicle includes a vehicle body, and a vehicle multi-stage steering system is arranged on the vehicle body, and the multi-stage steering system is electrically connected with an ECU of the vehicle. Such as figure 1 As shown, the automobile multi-stage steering system includes a steering column 1, a power steering gear 2, a steering oil tank 4, a first steering oil pump 6 and a power steering oil inlet pipe 10, the steering column 1 is connected to the power steering gear 2, An oil inlet pipe 5 is connected between the first steering oil pump 6 and the steering oil tank 4, and an oil return pipe 3 is connected between the first steering oil pump 6 and the power steering gear 2. The automobile multi-stage steering system also includes a second steering oil pump 7, an oil storage The device 8 and the oil pressure flow execution device 9 also include a vehicle-mounted jolt accumulator. The second ste...

Embodiment 2

[0028] The rotating shaft of flywheel 13 is connected with a gear, and the edge of secondary flywheel 14 is provided with teeth and meshes with the gear. All the other are with embodiment 1.

Embodiment 3

[0030] The second steering oil pump 7 is a one-way hydraulic pump. The second steering oil pump 7 is connected to an oil circuit switching valve 15. The oil circuit switching valve 15 is provided with a first interface and a second interface. The high pressure port on the second steering oil pump 7 and the low pressure port are respectively connected to the first interface and the second interface. The vehicle is a hybrid vehicle equipped with an internal combustion engine and an electric motor. The first steering oil pump 6 is clutchably connected to the output shaft of the internal combustion engine, and the second steering oil pump 7 is clutchably connected to the electric motor. All the other are with embodiment 1.

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Abstract

The invention discloses a multi-stage steering system of an automobile. The multi-stage steering system comprises a steering column, a power steering gear, a steering oil tank, a first steering oil pump, a steering gear power-assisted oil inlet pipe, a second steering oil pump, an oil storage device and an oil pressure and flow execution device, wherein the steering column is connected to the power steering gear; an oil inlet pipe is connected between the first steering oil pump and the steering oil tank; an oil return pipe is connected between the first steering oil pump and the power steering gear; the second steering oil pump and the first steering oil pump are connected in parallel between the oil storage device and the steering oil tank; the oil pressure and flow execution device is connected between the oil storage device and the power steering gear and is electrically connected with an ECU (Electronic Control Unit) of the automobile. The invention also discloses the automobile applying the multi-stage steering system. According to the multi-stage steering system and the automobile, disclosed by the invention, the working property of a power-assisted steering system can be flexibly adjusted according to different working situations, all main control properties of the automobile can be balanced, and the cost of the power-assisted steering system is easy to control.

Description

technical field [0001] The invention relates to an automobile steering system and an automobile using the system, more specifically, it relates to an automobile multi-stage steering system and an automobile applying the system. Background technique [0002] With the improvement of road conditions and the improvement of living standards, drivers have increased the expectations of vehicle handling performance, requiring vehicles to have comfortable and safe driving performance under various working conditions, especially for the performance of the steering system. Hope to obtain Precise steering performance, and can improve vehicle handling performance. Sensitive, light and stable are the main technical requirements for the steering performance of automobiles. If the steering is not flexible, the car’s handling performance will be poor, which will endanger safety; the steering is not light, and it will easily increase the driving fatigue. Power steering technology mainly incl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/06B62D5/065
CPCB62D5/063B62D5/064B62D5/065
Inventor 梁荣朝
Owner ZHEJIANG GEELY HOLDING (GROUP) CO LTD