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Simulation test bed for novel electro-hydraulic steering system of commercial vehicle

A technology for simulating test benches and steering systems, applied in the field of commercial vehicle steering, can solve problems such as energy waste, poor steering comfort, and inconsistency with energy saving, and achieve the effects of facilitating axial position adjustment, optimizing steering characteristics, and facilitating disassembly

Inactive Publication Date: 2016-12-21
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this steering system has the following disadvantages: (1) The hydraulic pump is driven by the engine. As long as the engine is started, the hydraulic pump will run continuously, resulting in energy waste, which does not meet the concept of energy saving; Information such as corners determines a reasonable power assist value, and the steering comfort is poor
This patent introduces the structure, working principle and functions of the intelligent new electro-hydraulic steering system, but does not describe in detail the specific implementation methods and functional verification of the steering system functions

Method used

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  • Simulation test bed for novel electro-hydraulic steering system of commercial vehicle
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  • Simulation test bed for novel electro-hydraulic steering system of commercial vehicle

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Embodiment Construction

[0031] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0032] refer to figure 1 and figure 2 , the commercial vehicle novel electro-hydraulic steering system simulation test bench of the present invention consists of a simulation scene display device I, a real-time simulation platform II, a hydraulic booster system III, a driver control device IV, a mechanical steering system V, an electric booster device VI, a steering Composed of resistance simulation device VII, basic platform VIII and seat IX.

[0033] The simulation scene display device I includes a display screen 1 of an upper computer and a display screen 2 of a lower computer, and these two display screens are respectively connected with the upper computer 3 and the lower computer 4 . Among them, the upper computer display screen 1 is used to realize human-computer interaction, and is responsible for displaying the operation of programm...

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Abstract

The invention discloses a simulation test bed for a novel electro-hydraulic steering system of a commercial vehicle. The simulation test bed is used for the research of steering characteristics, the development and verification of steering assisting control strategies as well as the monitoring and evaluation of steering control effects of the novel electro-hydraulic steering system of the commercial vehicle. The test bed is composed of a simulation scene display device, a real-time simulation platform, a hydraulic power assisting system, a driver control device, a mechanical steering system, an electric power assisting device, a steering resistance simulation device, a base frame and a seat; the simulation scene display device is used for displaying vehicle states and control effects in real time; the electric power assisting device is used for improving the steering characteristic of the steering system, and integrating other chassis electronic control systems; and the steering resistance simulation device is used for simulating steering resistance between tires and the ground. According to the test bed, based on real-time interaction between the driver and the steering system and the real-time scene simulation of the simulation scene display device, and a hardware platform can be provided for the research of the steering characteristics and the development and verification of the steering assisting control strategies of the novel electro-hydraulic steering system of the commercial vehicle.

Description

technical field [0001] The invention belongs to the field of steering of commercial vehicles, and in particular relates to a simulation test bench used for research on steering characteristics of a new electro-hydraulic steering system of commercial vehicles, development and verification of steering auxiliary control strategies, and monitoring and evaluation of steering control effects. Background technique [0002] The hydraulic pump of the traditional hydraulic power steering system is driven by the engine to assist the driver to achieve the effect of light steering. However, this steering system has the following disadvantages: (1) The hydraulic pump is driven by the engine. As long as the engine is started, the hydraulic pump will run continuously, resulting in energy waste, which does not meet the concept of energy saving; The steering angle and other information determine a reasonable power assist value, and the steering comfort is poor. For this reason, researchers h...

Claims

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Application Information

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IPC IPC(8): G01M17/06
CPCG01M17/06
Inventor 宗长富韩小健吕程盛赵伟强高恪李贵远
Owner JILIN UNIV
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