US 11,807,068 B2
Vehicle and temperature control device thereof
Wei Huang, Shenzhen (CN); Yong Xiong, Shenzhen (CN); Gan Song, Shenzhen (CN); Yili Luo, Shenzhen (CN); and Penghui Song, Shenzhen (CN)
Assigned to BYD COMPANY LIMITED, Shenzhen (CN)
Appl. No. 17/416,726
Filed by BYD COMPANY LIMITED, Shenzhen (CN)
PCT Filed Dec. 18, 2019, PCT No. PCT/CN2019/126361
§ 371(c)(1), (2) Date Jun. 21, 2021,
PCT Pub. No. WO2020/125684, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 201811574135.3 (CN), filed on Dec. 21, 2018.
Prior Publication US 2022/0041031 A1, Feb. 10, 2022
Int. Cl. B60H 1/32 (2006.01); B60H 1/00 (2006.01); B60L 58/26 (2019.01); B60W 10/08 (2006.01); B60W 10/30 (2006.01)
CPC B60H 1/00278 (2013.01) [B60L 58/26 (2019.02); B60W 10/08 (2013.01); B60W 10/30 (2013.01); B60H 2001/00307 (2013.01); B60W 2510/087 (2013.01)] 20 Claims
OG exemplary drawing
 
8. A temperature control device of a vehicle, comprising: a motor control circuit and a heat exchange medium circulation loop, wherein
the motor control circuit comprises a switch module, a three-phase inverter, a three-phase alternating current motor, and a control module, the switch module of the motor control circuit is connected to a power supply module, three phases of coils of the three-phase alternating current motor are connected to three phases of bridge legs of the three-phase inverter, a common contact of the three phases of coils of the three-phase alternating current motor is connected to the switch module, and the control module is connected to the power supply module, the switch module, the three-phase inverter, and the three-phase alternating current motor;
the heat exchange medium circulation loop comprises an electrically driven cooling loop and a cooling loop, the control module is electrically connected to a first valve in the heat exchange medium circulation loop, at least one of the three-phase inverter or the three-phase alternating current motor and the first valve form the electrically driven cooling loop through a heat exchange medium pipeline, and the first valve and a component to be heated form the cooling loop through a heat exchange medium pipeline; and
when obtaining that the component to be heated needs to be heated, the control module controls the switch module to be turned on, controls the first valve to turn on the electrically driven cooling loop and the cooling loop, and enables the power supply module to charge and discharge the three phases of coils alternately by controlling the three-phase inverter, so that the three-phase inverter and the three-phase alternating current motor heat a heat exchange medium flowing through at least one of the three-phase inverter or the three-phase alternating current motor,
wherein the motor control circuit further comprises an energy storage module, the energy storage module is connected to a connection point of the three phases of coils of the three-phase alternating current motor, and the energy storage module is further connected to the switch module; and
when obtaining that the component to be heated needs to be heated, the control module controls the switch module to be turned on, controls the first valve to turn on the electrically driven cooling loop and the cooling loop, and enables the power supply module to charge and discharge the energy storage module and the three phases of coils alternately by controlling the three-phase inverter, so that the three-phase inverter and the three-phase alternating current motor heat a heat exchange medium flowing through at least one of the three-phase inverter and the three-phase alternating current motor via the electrically driven cooling loop.