Title:
TORQUE CONTROL METHOD AND TORQUE CONTROL SYSTEM FOR ELECTRIC DRIVE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/217389
Kind Code:
A1
Abstract:
A torque control method and a torque control system for an electric drive system. The method comprises: obtaining a charging cut-off voltage and a discharge cut-off voltage of a high-voltage battery; setting an allowable charge lower limit value and an allowable discharge upper limit value; setting a dynamic target voltage value when an actual voltage of the high-voltage battery is greater than or equal to the allowable charge lower limit value or less than or equal to the allowable discharge upper limit value; calculating a target torque value according to the actual voltage of the high-voltage battery and the dynamic target voltage value; and setting an available torque limit of the electric drive system according to the comparison results of the actual voltage of the high-voltage battery with the allowable charge lower limit value and the allowable discharge upper limit value, and the target torque value, and controlling the torque output of a motor according to the available torque limit.
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Inventors:
YE XIANJUN (CN)
Application Number:
PCT/CN2021/086355
Publication Date:
October 20, 2022
Filing Date:
April 12, 2021
Export Citation:
Assignee:
GEELY HOLDING GROUP CO LTD (CN)
GEELY AUTOMOBILE RES INSTITUTE NINGBO CO LTD (CN)
GEELY AUTOMOBILE RES INSTITUTE NINGBO CO LTD (CN)
International Classes:
B60L58/14; B60L15/20; B60L58/10; B60L58/15; H01M10/44; H02J7/00
Foreign References:
| CN106451592A | 2017-02-22 | |||
| CN106585402A | 2017-04-26 | |||
| CN101284532A | 2008-10-15 | |||
| JP2012200048A | 2012-10-18 | |||
| CN104868515A | 2015-08-26 | |||
| CN110549858A | 2019-12-10 |
Attorney, Agent or Firm:
WISEAST INTELLECTUAL PROPERTY LAW FIRM (CN)
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