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Power steering system and vehicle

A technology of power steering and power steering gear, applied in the direction of fluid steering mechanism, etc., can solve the problems of large-tonnage trucks unable to achieve automatic steering, insufficient steering motor to provide steering assistance, and inability to achieve automation.

Active Publication Date: 2019-07-05
BEIQI FOTON MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On large-tonnage trucks, since the steering motor is not enough to provide steering assistance, a hydraulic power steering system is required. However, the current common hydraulic power steering system cannot be automated, resulting in the inability of large-tonnage trucks to realize the automatic steering function.

Method used

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  • Power steering system and vehicle
  • Power steering system and vehicle
  • Power steering system and vehicle

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Embodiment Construction

[0046] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0047] According to one aspect of the present disclosure, there is provided a power steering system, such as Figure 1 to Figure 7 As shown, it includes a steering oil tank 1, a steering oil pump 2, and a power steering gear 3. The hydraulic oil required for system operation is stored in the steering oil tank 1 , and the steering oil pump 2 driven by the engine supplies oil to the power steering gear 3 , and the oil enters the power steering gear 3 from the steering oil tank 1 . The pressure oil flowing out from the power steering gear 3 flows back to the steering oil tank 1, and the oil fluid circulates all the time.

[0048] The structure and working prin...

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Abstract

The invention relates to a power steering system and a vehicle. The power steering system comprises a steering oil tank (1), a steering oil pump (2), a power steering device (3) and a first electroniccontrol reserving valve (4). The power steering system has an automatic steering mode, and under the automatic steering mode, the steering oil pump (2) supplies oil to a steering power cylinder (32)of the power steering device (3) through the first electronic control reversing valve (4). According to the power steering system, the first electronic control reversing valve is arranged, and the power steering system can realize an automatic steering function while large steering assisting power is provided.

Description

technical field [0001] The present disclosure relates to the field of vehicle steering systems, in particular, to a power steering system and a vehicle. Background technique [0002] On current trucks, the automatic steering function is achieved through the electric power steering system. The vehicle ECU sends a steering request to the steering motor ECU, which controls the steering motor to work, and the steering motor drives the steering mechanism through the steering motor deceleration mechanism to realize the automatic steering function. [0003] At present, the steering motor deceleration mechanism of trucks is mostly a worm gear mechanism, with a speed ratio of 13 to 15, and the torque of the steering motor is about 20N·m, which provides limited power assistance, so it is only suitable for trucks with a vehicle weight of 1.5 to 2 tons. . On large-tonnage trucks, since the steering motor is not enough to provide steering assistance, a hydraulic power steering system i...

Claims

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Application Information

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IPC IPC(8): B62D5/06
CPCB62D5/06
Inventor 姚旺
Owner BEIQI FOTON MOTOR CO LTD
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