METHOD FOR ACTIVELY HEATING BATTERY PACK BY DRIVING MOTOR AND NEW ENERGY VEHICLE

WIPO Patent Application WO/2022/142142

A1

Disclosed in the present invention are a method for actively heating a battery pack by a driving motor and a new energy vehicle. The method comprises: receiving a torque instruction, obtaining a system loss coefficient according to the torque instruction and the real-time rotational speed of a driving motor, and obtaining a standard current instruction by means of a standard vector control table according to the torque instruction; obtaining a standard heating power according to the system loss coefficient and the standard current instruction; and determining whether a required heating power for heating a battery pack is greater than the standard heating power or not; if yes, determining an actual current instruction according to the required heating power; if not, the standard current instruction being the actual current instruction; and then using the actual current instruction to drive the driving motor to operate, and using heat generated by the driving motor to heat the battery pack by means of a heat exchange system. According to the technical solution, the battery pack can be heated only by improving a driving motor control algorithm, without providing hardware, such that the heating cost is low, and the efficiency is high.

ZHANG QINGLU (CN)
WANG LIANXIN (CN)
YE XIAO (CN)
HAO BIN (CN)
LI XIAOHUI (CN)

PCT/CN2021/098932

July 07, 2022

June 08, 2021

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JING JIN ELECTRIC TECH CO LTD (CN)

B60L58/27; H01M10/615

CN112721739A	2021-04-30
CN109346802A	2019-02-15
CN111584976A	2020-08-25
CN110323519A	2019-10-11
CN110995099A	2020-04-10
US6078107A	2000-06-20

BEIJING LONGAN LAW FIRM (CN)

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