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Apparatus and method for measuring steering torque of ideal steering wheel of automobile

A technology for manipulating torque and measuring devices, which is applied in the direction of measuring the force applied to the control element, etc., to achieve the effect of convenient implementation

Active Publication Date: 2016-04-06
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The ideal steering wheel torque is the subjective feeling of the driver and can only be evaluated through real vehicle tests

Method used

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  • Apparatus and method for measuring steering torque of ideal steering wheel of automobile
  • Apparatus and method for measuring steering torque of ideal steering wheel of automobile
  • Apparatus and method for measuring steering torque of ideal steering wheel of automobile

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0037] figure 1 Shown is a schematic diagram of the ideal power assist characteristic curve of a car. When the vehicle speed is 0, the slope of the curve is relatively large, the power assist oil pressure is large, and the steering wheel torque is small; when the vehicle speed is 80Km / h, the slope of the curve is small, the power assist oil pressure is small, and the steering wheel Large torque ensures low-speed steering portability and high-speed steering stability. The ideal power assist characteristics are obtained from the ideal steering wheel operating torque and steering resistance torque, so the power assist characteristics designed according to the ideal steering wheel operating torque can ensure a good "road feel" during the steering process of the car.

[0038]...

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Abstract

The invention provides a device and method for measuring ideal steering wheel operation torque of an automobile. The device comprises a data collecting system, a torque measuring device installed on a steering wheel of the automobile, an electromagnetic valve unit, a controller, a gyroscope located at the center of mass of the automobile and an automobile speed meter located at the tail portion of the automobile. The torque measuring device, the gyroscope and the automobile speed meter are connected with the data collecting system respectively and the data collecting system is connected with the controller and an upper computer. The electromagnetic valve unit is connected to the two ends of a steering valve in a hydraulic steering system in parallel and connected with the controller. The device and method for measuring the ideal steering wheel operation torque of the automobile are suitable for measuring the ideal steering wheel operation torque of a passenger car and a heavy-duty commercial vehicle as well, the method is convenient to perform and a measurement result has more accuracy and more authenticity.

Description

technical field [0001] The invention relates to an automobile steering system, in particular to a device and a method for measuring the steering torque of an ideal steering wheel of an automobile. Background technique [0002] At present, most of the cars still use the hydraulic power steering system (HPS). The power assist characteristic of this steering system is fixed, that is, the steering power is not adjusted accordingly with the change of vehicle speed. When designing the power assist characteristics of HPS, if you pay attention to the lightness of low-speed steering, when the car turns at high speed, the driver will feel that the road feeling is not clear and the car is "floating" due to the large steering power, so the car's handling stability and driving safety must be improved There is no guarantee; if you focus on high-speed steering stability, the power assist characteristics will be flatter and longer in the small steering torque area, sacrificing the lightness...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L5/22
Inventor 唐斌江浩斌马世典袁朝春耿国庆华一丁
Owner JIANGSU UNIV
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