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Hydraulic power-assisted steering system and vehicle

A technology of hydraulic power steering and hydraulic oil, applied in the field of vehicles, can solve the problem that the hydraulic power steering system cannot be applied well

Active Publication Date: 2021-05-04
BYD CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this kind of hydraulic power steering system cannot be well applied to self-driving vehicles

Method used

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  • Hydraulic power-assisted steering system and vehicle
  • Hydraulic power-assisted steering system and vehicle
  • Hydraulic power-assisted steering system and vehicle

Examples

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Embodiment Construction

[0083] In the following description, numerous specific details are given in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without one or more of these details. In other examples, some technical features known in the art are not described in order to avoid confusion with the present invention.

[0084] In the following description, for a thorough understanding of the present invention, the detailed structure will be set forth in order to explain the invention. It is evident that the practice of the invention is not limited to specific details familiar to those skilled in the art. The preferred embodiments of the present invention are described in detail below, however, the present invention may have other embodiments besides these detailed descriptions and should not be construed as being limited to the embodiments set forth herein.

[0085] It should...

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Abstract

The invention provides a hydraulic power-assisted system and a vehicle. The hydraulic power-assisted steering system comprises an oil storage device, a first electromagnetic valve, a hydraulic motor assembly and a power-assisted steering device, hydraulic oil is stored in the oil storage device, the first electromagnetic valve is in fluid communication with the oil storage device, the hydraulic motor assembly comprises a first output shaft and a second output shaft, and the first output shaft is used for being connected with a steering wheel; the power-assisted steering device is connected with the second output shaft, the power-assisted steering device rotates the wheels along with rotation of the second output shaft, in the first state of the first electromagnetic valve, the oil storage device is in fluid communication with the hydraulic motor assembly and the power-assisted steering device, and in the second state of the first electromagnetic valve, the oil storage device is in fluid communication with the power-assisted steering device. According to the hydraulic power-assisted steering system, the complexity is low, the control strategy is simple, the cost is low, hydraulic oil can provide assistance for wheel steering, and the steering wheel can be automatically controlled.

Description

technical field [0001] The present invention generally relates to the technical field of vehicles, and more specifically relates to a hydraulic power steering system and a vehicle. Background technique [0002] Existing power steering systems for vehicles mainly include motor power steering systems and hydraulic power steering systems. However, the steering torque output by the motor power steering system is usually small. If the steering torque is increased, a high-power motor will be used, which will result in a large motor size. The hydraulic power steering system can provide larger steering torque. [0003] Such as figure 1 As shown, the hydraulic power steering system includes a power steering device 1 , which may include a recirculating ball steering gear, and a hydraulic cylinder 2 of the power steering device 1 is provided with a movable piston 3 . The steering wheel 4 is connected to the steering column 5 , the steering column 5 is connected to the power steering...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/06B62D5/09
CPCB62D5/06B62D5/091
Inventor 何锡阳赵瑛潘洪明
Owner BYD CO LTD
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