US 11,679,691 B2
Battery heating device, battery heat adjustment method, storage medium, and electronic device
Qin Yang, Sunnyvale, CA (US); Meng Yao, Sunnyvale, CA (US); Bozhi Yang, Sunnyvale, CA (US); Xiaohui Li, Sunnyvale, CA (US); Yifeng Lin, Guangdong (CN); and Zihui Ma, Guangdong (CN)
Assigned to GUANGZHOU AUTOMOBILE GROUP CO., LTD., Guangzhou (CN)
Filed by Guangzhou Automobile Group Co., Ltd., Guangdong (CN)
Filed on Jul. 24, 2020, as Appl. No. 16/937,627.
Prior Publication US 2022/0024350 A1, Jan. 27, 2022
Int. Cl. B60L 58/27 (2019.01); B60K 11/02 (2006.01); H01M 10/615 (2014.01); H01M 10/625 (2014.01); H01M 10/48 (2006.01); H01M 10/663 (2014.01); H01M 10/63 (2014.01); H01M 10/6568 (2014.01)
CPC B60L 58/27 (2019.02) [B60K 11/02 (2013.01); H01M 10/486 (2013.01); H01M 10/615 (2015.04); H01M 10/625 (2015.04); H01M 10/63 (2015.04); H01M 10/6568 (2015.04); H01M 10/663 (2015.04); H01M 2220/20 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A battery heating device of an electric vehicle, comprising:
a battery heating circuit, an engine cooling circuit, a three-way valve, and a temperature sensor, wherein the three-way valve connects the battery heating circuit and the engine cooling circuit to mix a first liquid in the engine cooling circuit and a second liquid in the battery heating circuit, and transmits a mixed liquid to the battery heating circuit to heat a battery in the battery heating circuit, the temperature sensor is arranged between the battery in the battery heating circuit and a first pump in the battery heating circuit, and connected to the three-way valve, the temperature sensor detects a temperature of the first liquid before the first liquid passes through the battery, the three-way valve is configured to adjust adjusts a mixing ratio of the first liquid and the second liquid according to temperature data;
the three-way valve is located between a thermostat in the engine cooling circuit and a cabin heater core in the engine cooling circuit, wherein
a first end of the three-way valve is connected to a high voltage heater in the battery heating circuit;
a second end of the three-way valve is connected to the cabin heater core;
a third end of the three-way valve is connected to the thermostat; and
a chiller in the battery heating circuit is connected to a second reservoir in the engine cooling circuit.