公开(公告)号：US20200238788A1

公开(公告)日：2020-07-30

申请号：US16651265

申请日：2018-09-29

Applicant: BYD COMPANY LIMITED

Inventor： Xingchi WU ,  Jigang TAN ,  Hongjun WANG

IPC: B60H1/00 ,  H01M10/615 ,  H01M10/613 ,  H01M10/617 ,  H01M10/625 ,  H01M10/637 ,  H01M10/6556 ,  H01M10/663

Abstract: A temperature regulating system of an in-vehicle battery is disclosed in the present disclosure. The system includes: a heat exchanger; an in-vehicle air conditioner, where the in-vehicle air conditioner is provided with an air conditioner vent, a first air duct is formed between the air conditioner vent and the heat exchanger, a semiconductor heat exchange module, where a second air duct is formed between a cooling end of the semiconductor heat exchange module and the first fan, and a third air duct is formed between the cooling end of the semiconductor heat exchange module and a compartment; a battery thermal management module, where the battery thermal management module is connected to the heat exchanger to form a heat exchange flow path; and a controller, connected to the semiconductor heat exchange module, the battery thermal management module, and the in-vehicle air conditioner.

公开(公告)号：US20200313255A1

公开(公告)日：2020-10-01

申请号：US16651936

申请日：2018-09-29

Applicant: BYD COMPANY LIMITED

Inventor： Xingchi WU ,  Jigang TAN ,  Hongjun WANG

IPC: H01M10/625 ,  H01M10/613 ,  H01M10/615 ,  H01M10/633 ,  H01M10/48

Abstract: The present disclosure discloses a temperature adjustment method and a temperature adjustment system for a vehicle-mounted battery. The temperature adjustment method includes the following steps: obtaining a required power for temperature adjustment on a battery; obtaining an actual power for temperature adjustment on the battery; and adjusting a temperature of the battery according to the required power for temperature adjustment and the actual power for temperature adjustment. The present disclosure may precisely control a temperature adjustment time of the battery, and the actual power for temperature adjustment on the battery is adjustable in real time, so that a heating power and a cooling power of the vehicle-mounted battery may be precisely controlled according to an actual status of the vehicle-mounted battery, thereby adjusting the temperature of the vehicle-mounted battery when the temperature is excessively high or excessively low, maintaining the temperature of the vehicle-mounted battery within a preset range, and avoiding a case of affecting performance of the vehicle-mounted battery because of the temperature.

公开(公告)号：US20170106899A1

公开(公告)日：2017-04-20

申请号：US15316069

申请日：2015-11-13

Applicant: BYD COMPANY LIMITED

Inventor： Jinze Xu ,  Xingchi WU ,  Wengang Luo ,  Chao Zhang ,  Hongjun Wang ,  Zhenpai Luan

IPC: B62D5/04 ,  H02P4/00 ,  B60L1/00

CPC classification number: B62D5/0481 ,  B60L1/00 ,  B60L1/003 ,  B60L2210/12 ,  B60L2210/14 ,  B60R16/03 ,  B60Y2200/91 ,  B60Y2400/112 ,  B62D5/046 ,  H02P4/00 ,  Y02T10/7258

Abstract: A steering power system for an electric vehicle and a method for controlling same are provided. The steering power system includes: a steering motor; a steering motor controller, configured to control the steering motor; a high voltage power battery, configured to output a first voltage; a low voltage storage battery, configured to output a second voltage; a buck DC-DC converter, configured to convert the first voltage into the second voltage for being supplied to the low voltage storage battery when a high voltage system works; and a boost DC-DC converter, configured to convert the second voltage into the first voltage. When the high voltage system has an abnormal power failure, the boost DC-DC converter converts the second voltage outputted from the low voltage storage battery into the first voltage for being supplied to the steering motor controller.

公开(公告)号：US20200259229A1

公开(公告)日：2020-08-13

申请号：US16651964

申请日：2018-09-29

Applicant: BYD COMPANY LIMITED

Inventor： Xingchi WU ,  Jigang TAN ,  Hongjun WANG

IPC: H01M10/633 ,  B60L58/26 ,  B60L58/27 ,  H01M10/48 ,  H01M10/625 ,  H01M10/6556 ,  H01M10/6568 ,  H01M10/663 ,  H01M10/617 ,  B60H1/00

Abstract: The present disclosure discloses a temperature adjustment method and a temperature adjustment system for a vehicle. The temperature adjustment method includes the following steps: obtaining a required power used for performing temperature adjustment on a battery; obtaining an actual power used for performing temperature adjustment on the battery; and adjusting an opening degree of an intra-vehicle cooling branch and an opening degree of a battery cooling branch according to the required power, the actual power, an intra-vehicle temperature, and an air conditioner set temperature.