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Transient throttle's variable working condition driving index identification algorithm under steady speed driving

A technology for identifying algorithms and changing working conditions, which is applied in the direction of instruments, adaptive control, control/regulation systems, etc.

Inactive Publication Date: 2017-10-10
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to solve the problem of obtaining evaluation indicators from a large number of vehicle performance parameters and the relationship between evaluation indicators and scoring, and provide an indicator identification method that can provide objective evaluation indicators for subsequent objective evaluations

Method used

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  • Transient throttle's variable working condition driving index identification algorithm under steady speed driving
  • Transient throttle's variable working condition driving index identification algorithm under steady speed driving
  • Transient throttle's variable working condition driving index identification algorithm under steady speed driving

Examples

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Embodiment 1

[0064] Embodiment 1: see Figure 1 to Figure 2 In one embodiment of the present invention, a drivability index identification algorithm for transient accelerator with variable operating conditions at steady vehicle speed is applied to the method of how to obtain objective evaluation index in vehicle performance in objective evaluation of drivability. include

[0065] S1. Specifications for transient oil supply test conditions at steady-state vehicle speeds, and vehicle performance parameters such as accelerator opening, acceleration, vehicle speed, time, engine speed, gear information, etc. are collected through signal acquisition equipment;

[0066] Among them, the transient refueling at the steady-state speed is that after the car runs at a certain steady speed for a period of time, the car itself will have a series of dynamic responses after the accelerator pedal is stepped on for a moment. The purpose of this working condition test is to imitate the response performance a...

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Abstract

The invention discloses a transient throttle's variable working condition driving index identification algorithm under steady speed driving, comprising: establishing transient throttle's variable working condition testing norms; acquiring the vehicle performance parameters such as the throttle opening degree, the acceleration speed, the vehicle angle, the time, the motor rotation speed and the gear information through a signal acquisition device; performing multi-source vehicle performance parameters fusion and discretization determining to obtain the segment of the smallest working unit and determining the characteristic value; obtaining all the evaluation indexes of the transient throttle's under the steady speed driving; and then establishing a mathematical relation model of the evaluation indexes and the evaluation index scores through the index characteristics. The present invention provides a method for identifying the evaluation indexes and index scores from the vehicle performance parameters for the objective evaluation of driving.

Description

technical field [0001] The invention relates to a method for identifying and scoring the drivability evaluation index of transient throttle variable working conditions. Background technique [0002] The application of high-efficiency and energy-saving technologies reduces the driving quality of the car. There are problems such as high cost and poor repeatability in evaluating vehicle performance by subjective evaluation, which seriously affects the calibration cycle of the whole vehicle. In order to overcome the shortcomings of the subjective evaluation method, the characteristics of the drivability evaluation content are analyzed, and the subjective evaluation system is improved into an objective evaluation system. [0003] The premise of achieving objective evaluation is how to quickly obtain evaluation indicators from a large number of vehicle performance parameters and establish a reasonable mathematical relationship between evaluation indicators and evaluation values. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B13/04
Inventor 刘海江黄伟
Owner TONGJI UNIV
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