Automotive quality estimation system and method

A quality estimation and automobile technology, applied in the field of automobile quality estimation system, can solve the problem of inaccurate automobile quality estimation, achieve the effect of reducing the amount of data running, good practicability, and real-time consideration
CN1940509AActive Publication Date: 2007-04-04BYD CO LTD
1 Cites 58 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BYD CO LTD
Publication Date
2007-04-04

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A quality estimation system of automobile is prepared as receiving automobile operation data in real time by external data unit and sending received data to slope module and speed-acceleration module, receiving inherent parameter of automobile by internal parameter unit and sending received data to quality center module, calculating out slope angle of automobile by slope module according to received data and calculating out speed-acceleration by speed-acceleration module according to received data, sending calculated out slope angle and speed-acceleration to quality center module for calculating out quality of automobile there according to received data.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present invention relates to automobiles, in particular to a system and method for estimating automobile quality. Background technique

[0002] In U.S. Patent No. 6,839,615, a wheel speed sensor or a wheel angular velocity sensor and an accelerometer are used to draw a "square of speed-wheel torque" figure on the basis of the vehicle driving equation. The slope is the quality of the car and the intercept is The slope of the road uses the speed of the wheels to calculate the speed of the car. Although it has been corrected, it still cannot represent the real speed of the car, and the air resistance and rolling resistance are ignored in the car driving equation, making the estimation of the car's mass inaccurate. .

[0003] There are also public documents, such as "Recursive Least Squares with Forgetting for Online Estimation of Vehicle Mass and Road Grade: Theory and Experiments", using the port data specified in SAE J1939, using the recursive leas...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More