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Steering-by-wire system experimental device

A technology of steer-by-wire and experimental equipment, which is applied in the field of vehicle experiments, can solve problems such as the inconvenience of steer-by-wire tests, and achieve the effect of improving accuracy

Pending Publication Date: 2019-08-30
SOUTHWEST JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a steering-by-wire system experimental device to solve the problem of inconvenient steering-by-wire testing of existing heavy-duty unmanned vehicles

Method used

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  • Steering-by-wire system experimental device
  • Steering-by-wire system experimental device
  • Steering-by-wire system experimental device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0025] Please refer to figure 1 , an experimental device for a steering-by-wire system, comprising: a base 100 . The base 100 is provided with a support 10, a suspension assembly and a control system, and the three edges of the top of the base 100 are vertically provided with guardrails 110, and the edges without the guardrails 110 are used for test operations.

[0026] The support 10 includes two gantry frames 12, which are arranged in parallel and fixed on the base 100 by bolts. The tops of the two gantry frames 12 are connected by a top beam 11, so that there is integrity between the two gantry frames 12. , the suspension assembly is located below the top beam 11 , and a pressurizing assembly is provided between the suspension assembly and the top beam 11 .

[0027] Please refer to figure 2 and image 3 , the suspension assembly includes a vehicle frame 20 and two wheels 30 , and the two wheels 30 are respectively located on both sides of the vehicle frame 20 . Both si...

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Abstract

The invention discloses a steering-by-wire system experimental device, and belongs to the technical field of vehicle experiments. The steering-by-wire system experimental device comprises a bracket, asuspension assembly and a control system, wherein the top of the bracket is provided with a top beam; the suspension assembly comprises a frame and wheels located on both sides of the frame; the frame is connected with the wheels through a damping assembly respectively; the frame is also connected with the wheels through a steering-by-wire system; the top of the damping assembly is connected withthe top beam through a pressing assembly; and the control system communicates with the steering-by-wire system and the pressing assembly respectively. The steering-by-wire system experimental devicecan simulate the load transfer between left and right wheels during curve driving of a vehicle, static steering test under a full load condition, frequency-sweep steering test under a driving condition, steering test under different tire-ground adhesion conditions and performance test of key components of the steering-by-wire system of a heavy-duty vehicle, and can meet the test demand of the steering-by-wire system of a heavy-duty driverless vehicle in the development process of a steering mechanism and an actuation control system.

Description

technical field [0001] The invention relates to the technical field of vehicle experiments, in particular to an experimental device for a steering-by-wire system. Background technique [0002] The steer-by-wire system is a key system for heavy-duty road vehicles such as unmanned trucks, buses, and virtual rail trains. It requires high steering accuracy, fast response, and good reliability. At present, there is no mature mass-produced steering-by-wire system for heavy-duty unmanned vehicles in the market. In order to shorten the research and development cycle of key components and control systems of heavy-duty vehicle steering-by-wire systems, reduce development costs, and make breakthroughs in key technologies, there is an urgent need A steer-by-wire test device for a heavy-duty unmanned vehicle. The existing steer-by-wire test devices are mostly aimed at light-load passenger vehicles, and the load simulation method is not suitable for the steer-by-wire system of heavy-duty...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/06
CPCG01M17/06
Inventor 杨蔡进郭艳秋张成铭张众华李稳徐焱王文华于忠建
Owner SOUTHWEST JIAOTONG UNIV
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