Title:
ELECTRIC VEHICLE RANGE ESTIMATION METHOD, APPARATUS AND SYSTEM, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2023/216536
Kind Code:
A1
Abstract:
An electric vehicle range estimation method, comprising: by taking battery state-of-consumed-charge values respectively corresponding to N vehicle driving condition points within current duration as independent variables of a first linear function, and by taking vehicle traveled distance values respectively corresponding to the N vehicle driving condition points as dependent variables of the first linear function, performing linear fitting to obtain a first slope k of the first linear function, and multiplying the first slope k by a battery state of charge under a current driving condition to obtain the current range of an electric vehicle. By acquiring parameters online to perform fitting so as to estimate the range of the electric vehicle, the method raises the accuracy of electric vehicle range estimation while reducing calibration quantities. Further provided are an electric vehicle range estimation apparatus, an electric vehicle range estimation system, and a computer readable storage medium.
Inventors:
LIU XINGYI (CN)
LI QIANG (CN)
LI QIANG (CN)
Application Number:
PCT/CN2022/131658
Publication Date:
November 16, 2023
Filing Date:
November 14, 2022
Export Citation:
Assignee:
WEICHAI POWER CO LTD (CN)
WEIFANG WEICHAI POWER TECH CO LTD (CN)
WEIFANG WEICHAI POWER TECH CO LTD (CN)
International Classes:
B60L3/12; B60L58/12; G06F17/10
Domestic Patent References:
| WO2022024847A1 | 2022-02-03 |
Foreign References:
| CN105882435A | 2016-08-24 | |||
| CN111098753A | 2020-05-05 | |||
| CN113682196A | 2021-11-23 | |||
| CN114889492A | 2022-08-12 | |||
| CN112721661A | 2021-04-30 | |||
| CN113665431A | 2021-11-19 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW CO., LTD. (CN)
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