公开(公告)号：US20240351572A1

公开(公告)日：2024-10-24

申请号：US18761488

申请日：2024-07-02

Applicant: BYD COMPANY LIMITED

Inventor： Yi HAN ,  Bo PENG ,  Futang ZHU ,  Chunsheng WANG

IPC: B60W20/12 ,  B60W10/08

CPC classification number: B60W20/12 ,  B60W10/08 ,  B60W2510/244 ,  B60W2556/50

Abstract: A hybrid electric vehicle, an electricity generation method and apparatus therefor, and a vehicle controller are provided. The method includes: obtaining position information of the hybrid electric vehicle, proportions of different vehicle speed ranges within preset time, and proportions of different gradient ranges of a road on which the hybrid electric vehicle is located within the preset time; determining a current operating condition of the hybrid electric vehicle according to the position information, the proportions of different vehicle speed ranges, and the proportions of different gradient ranges; obtaining corresponding target electricity generation power according to the operating condition; and controlling the hybrid electric vehicle to generate electricity according to the target electricity generation power.

公开(公告)号：US20240018894A1

公开(公告)日：2024-01-18

申请号：US18373233

申请日：2023-09-26

Applicant: BYD COMPANY LIMITED

Inventor： Futang ZHU ,  Chunsheng WANG ,  Qiuping HUANG

IPC: F01P7/16 ,  F01P5/10 ,  F01P5/02

CPC classification number: F01P7/165 ,  F01P5/10 ,  F01P5/02 ,  F01P2025/64 ,  F01P2025/13

Abstract: A thermal management and control method includes: determining a total target amount of to-be-dissipated heat of an engine based on a minimum engine fuel consumption lookup table when a current temperature of the engine is greater than or equal to a temperature threshold and an opening degree of the thermostat is greater than or equal to an opening degree threshold; querying a minimum thermal management system power consumption lookup table based on the total target amount of to-be-dissipated heat, an air inlet speed of an air-cooling radiator, and a current ambient temperature, and determining a target rotation speed of a water pump and a target rotation speed of the air-cooling radiator; and controlling a rotation speed of the water pump to be the target rotation speed of the water pump, and controlling a rotation speed of the air-cooling radiator to be the target rotation speed of the air-cooling radiator.

公开(公告)号：US20240018895A1

公开(公告)日：2024-01-18

申请号：US18373221

申请日：2023-09-26

Applicant: BYD COMPANY LIMITED

Inventor： Futang ZHU ,  Chunsheng WANG ,  Qiuping HUANG

IPC: F01P7/16 ,  F01P11/18

CPC classification number: F01P7/167 ,  F01P11/18 ,  F01P2037/00

Abstract: A method for controlling thermal management of a vehicle is provided. The vehicle includes an engine and a thermal management system. The thermal management system includes a water pump. The engine and the water pump are connected to form a first cooling circulation. The method includes: controlling the water pump according to a current temperature of the engine, a total engine power, and a current vehicle speed. In response to that a current temperature of the engine is less than or equal to a temperature threshold, a total engine power is greater than or equal to a power threshold, and a current vehicle speed is less than or equal to a vehicle speed threshold, controlling the water pump to periodically switch between a start state and a stop state.

公开(公告)号：US20240010066A1

公开(公告)日：2024-01-11

申请号：US18372249

申请日：2023-09-25

Applicant: BYD COMPANY LIMITED

Inventor： Futang ZHU ,  Hui ZHANG ,  Chunsheng WANG

IPC: B60K11/02 ,  F01M5/00

CPC classification number: B60K11/02 ,  F01M5/002

Abstract: A hydraulic system for a powertrain of a vehicle, the powertrain includes a drive motor, a generator, a clutch, or a transmission system. The hydraulic system includes: an oil tank; a main cooling oil path, a first end of the main cooling oil path being communicated with the oil tank, where a first oil pump and a cooler are disposed on the main cooling oil path; and multiple cooling branches, the cooling branches connected to a second end of the main cooling oil path, the first oil pump configured to pump an oil in the oil tank to the cooling branches, a control element disposed on each of the cooling branches, the control element configured to control opening and closing of a corresponding cooling branch, and the cooling branches configured to cool one or more of the drive motor, the generator, the clutch, and the transmission system.

公开(公告)号：US20250162570A1

公开(公告)日：2025-05-22

申请号：US19027208

申请日：2025-01-17

Applicant: BYD COMPANY LIMITED

Inventor： Dongsheng YANG ,  Futang ZHU ,  Chunsheng WANG ,  Tao SHEN ,  Jinlong WU

IPC: B60W20/13 ,  B60L58/14 ,  B60W40/076 ,  B60W40/105 ,  B60W40/107

Abstract: An energy management method for a vehicle, includes: acquiring a planned road of the vehicle, and identifying, according to condition data of the planned road, at least one predicted condition of the planned road; determining, according to condition data corresponding to each of the at least one predicted condition, a battery state of charge (SOC) range of the vehicle corresponding to each of the at least one predicted condition; determining, according to battery SOC ranges corresponding to the at least one predicted condition, multiple battery SOC paths, wherein a battery SOC path comprises initial values of the battery SOC corresponding to the at least one predicted condition and lines connecting the initial values; and determining, operation energy consumption corresponding to each of the battery SOC paths, selecting a optimal battery SOC path corresponding to a minimum operation energy consumption, and operating the vehicle according to the optimal battery SOC path.

公开(公告)号：US20230278561A1

公开(公告)日：2023-09-07

申请号：US18315612

申请日：2023-05-11

Applicant: BYD COMPANY LIMITED

Inventor： Futang ZHU ,  Yawei LIU ,  Chunsheng WANG

IPC: B60W30/18 ,  B60W40/06

CPC classification number: B60W30/18127 ,  B60W40/06 ,  B60W2510/083 ,  B60W2710/18 ,  B60W2710/242

Abstract: An energy recovery method and device, an electric vehicle, and a storage medium are provided. The energy recovery method includes: acquiring vehicle travelling information, wherein the vehicle travelling information comprises road condition information and travelling status information; acquiring a vehicle braking demand according to the road condition information and the travelling status information; predicting a first motor braking feedback according to the vehicle braking demand; and performing energy recovery according to the first motor braking feedback.