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公开(公告)号:EP4032737A1
公开(公告)日:2022-07-27
申请号:EP20955472.4
申请日:2020-11-04
申请人: Zhejiang Geely Holding Group Co., Ltd. , Ningbo Geely Royal Engine Components Co., Ltd. , Aurobay Technology Co., Ltd. , Ningbo Umd Automatic Transmission Co., Ltd.
发明人: JING, Junchao , LIU, Yiqiang , HUANG, Weishan , ZUO, Botao , YANG, Jun , WANG, Ruiping , AN, Conghui , SCHOLTEN, Ingo
摘要: Provided are a control method and system for a hybrid electric vehicle after a battery failure and a hybrid electric vehicle. The control method includes: after monitoring that a failure occurs in a power battery, judging whether the failure is a specific type of failure or not, the specific type of failure being a battery failure under which a motor of a hybrid electric vehicle is capable of conducting voltage control (S402); if so, setting a relay of the power battery to be disengaged after a preset time (S404); before the relay is disengaged, coordinating and controlling the power battery, an engine, a transmission and the motor of the hybrid electric vehicle to enable operation states thereof to meet a preset voltage control entering condition (S406); and controlling the motor to enter into a voltage control mode (S408). The motor is allowed to enter into voltage control smoothly and operate stably, thus avoiding problems of overtemperature of a battery, serious voltage fluctuation and the like caused by direct voltage control on the motor after a power battery failure.
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公开(公告)号:EP4169789A1
公开(公告)日:2023-04-26
申请号:EP21935438.8
申请日:2021-08-19
申请人: Ningbo Geely Royal Engine Components Co., Ltd. , Aurobay Technology Co., Ltd. , Zhejiang Geely Holding Group Co., Ltd.
发明人: JING, Junchao , LIU, Yiqiang , HUANG, Weishan , YANG, Jun , ZUO, Botao , YU, Xuemei , WANG, Ruiping , SCHOLTEN, Ingo
IPC分类号: B60W30/18 , B60W10/02 , B60W10/06 , B60W10/08 , B60W20/10 , B60W20/15 , B60W20/40 , B60W20/50 , B60K6/442
摘要: Disclosed are a parallel start control method and system for a hybrid electric vehicle, and a hybrid electric vehicle. The parallel start control method for a hybrid electric vehicle includes: acquiring current working conditions of a clutch and a gearbox of the hybrid electric vehicle, an engine request torque of the hybrid electric vehicle and a start mode of the hybrid electric vehicle; judging whether the hybrid electric vehicle meets an over-heat protection condition according to the current working conditions of the clutch and the gearbox, and determining a start basic torque according to a judging result and the engine request torque; determining a start clutch request torque based on the start basic torque according to the start mode of the hybrid electric vehicle; and conducting start control on the clutch according to the start clutch request torque. The parallel start control method for the hybrid electric vehicle is capable of improving the start security, responsiveness and power performance of the hybrid electric vehicle.
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3.
公开(公告)号:EP4134287A1
公开(公告)日:2023-02-15
申请号:EP21854733.9
申请日:2021-06-29
申请人: Ningbo Geely Royal Engine Components Co., Ltd. , Aurobay Technology Co., Ltd , Zhejiang Geely Holding Group Co., Ltd.
发明人: JING, Junchao , LIU, Yiqiang , HUANG, Weishan , ZUO, Botao , YU, Xuemei , WANG, Ruiping , SCHOLTEN, Ingo
IPC分类号: B60W30/18 , B60W10/06 , B60W10/08 , B60W20/00 , B60K6/442 , B60W10/02 , B60W20/15 , B60W20/40 , B60W30/192 , B60W30/194 , B60W20/50
摘要: Embodiments of the present application disclose a method, a device, an electronic equipment and a storage medium for controlling engine stop. The method includes acquiring current state information and operation parameter information of an engine, the current state information includes a starting state, and the operation parameter information includes revolution speed information, start duration information, coolant temperature information and torque information of the engine. If the current state information is the starting state, and the revolution speed information, the start duration information, the coolant temperature information and the torque information meet a first preset stop condition corresponding to the starting state, the engine is controlled to be in the stopped state. Based on the embodiments of the present application, excessively long starting time and excessively low revolution speed of the engine can be prevented, damages of hardware equipment such as a starting motor and a dual-mass flywheel can be avoided, and safety and reliability of the system can be improved.
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公开(公告)号:EP4063211A1
公开(公告)日:2022-09-28
申请号:EP21854734.7
申请日:2021-02-02
申请人: Zhejiang Geely Holding Group Co., Ltd. , Ningbo Geely Royal Engine Components Co., Ltd. , Aurobay Technology Co., Ltd
发明人: JING, Junchao , LIU, Yiqiang , HUANG, Weishan , YANG, Jun , YU, Xuemei , WANG, Ruiping , SCHOLTEN, Ingo
摘要: The present invention discloses an engine control method, device, system, and a vehicle. The method includes: detecting execution information for controlling start-stop of an engine, wherein the execution information for controlling the start-stop of the engine at least includes a collected value of an acceleration sensor, a real-time vector velocity, and a value of torque requested by a driver; obtaining an instantaneous acceleration according to a ratio of the real-time vector velocity to time; calculating an acceleration of the vehicle according to the collected value of the acceleration sensor and the instantaneous acceleration; filtering the acceleration to obtain a filtered value of the acceleration and obtaining a value of slope by converting with a conversion relationship between the filtered value of the acceleration and the slope; and controlling the start-stop of the engine according to the value of the slope and the value of the torque requested by the driver. According to the technical solutions of the present invention, not only the value of the slope but also the value of the torque requested by the driver are considered in the conditions of the start-stop of the engine on a ramp, therefore the fuel consumption of the vehicle is effectively reduced.
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公开(公告)号:EP4276326A1
公开(公告)日:2023-11-15
申请号:EP22913274.1
申请日:2022-07-01
申请人: Zhejiang Geely Holding Group Co., Ltd. , Ningbo Geely Royal Engine Components Co., Ltd. , Aurobay Technology Co., Ltd.
发明人: JING, Junchao , YANG, Jun , LIU, Yiqiang , HUI, Yiming , BAN, Guang , YANG, Guikang , HUANG, Weishan , SCHOLTEN, Ingo , WANG, Ruiping
摘要: A clutch control method, including: after entering (S201) a waiting state, determining (S202) whether a current vehicle state satisfies a condition for a clutch to enter a sliding friction state; if the condition for the clutch to enter the sliding friction state is satisfied, controlling (S203) the clutch to enter the sliding friction state, and determining a target sliding friction rotating speed, corresponding to a current gear position, of the clutch; then determining (S204) whether the current vehicle state satisfies a condition for entering a clutch torque deviation collecting state; if the condition for entering the clutch torque deviation collecting state is satisfied, collecting (S205) a torque deviation once and storing the torque deviation; at an end of an adjustment period, accumulating all torque deviations collected previously and then taking an average value according to an accumulation number of times, so as to obtain an average torque deviation; if the average torque deviation exceeds a preset deviation threshold, recording (S206) the average torque deviation; and if the current vehicle state satisfies (S207) a condition for entering a deviation applying state, adjusting (S208) a current clutch friction coefficient according to the average deviation. A clutch control apparatus, a storage medium and a program product are further provided. The clutch control method can realize automatic adjustment of the clutch friction coefficient and accurate control of the clutch torque.
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6.
公开(公告)号:EP4067184A1
公开(公告)日:2022-10-05
申请号:EP21908117.1
申请日:2021-02-02
申请人: Zhejiang Geely Holding Group Co., Ltd. , Ningbo Geely Royal Engine Components Co., Ltd. , Aurobay Technology Co., Ltd.
发明人: JING, Junchao , LIU, Yiqiang , HUANG, Weishan , ZUO, Botao , YANG, Jun , YU, Xuemei , WANG, Ruiping , SCHOLTEN, Ingo
摘要: Provided is a start method for an engine in a dual-motor hybrid power system, which belongs to the technical field of vehicles. The dual-motor hybrid power system includes the engine, a first motor connected to the engine, and a clutch connected between the first motor and a gear shift system. The start method includes: when receiving an engine start request, acquiring a current state of the first motor and current state data of a vehicle; determining an available start strategy according to the current state of the first motor and the current state data of the vehicle, and executing the available start strategy to start the engine, wherein the available start strategy includes at least one of the following: a prefill torque strategy, a fuel injection control strategy and a clutch start waiting strategy. Also disclosed are an apparatus using the method and a vehicle.
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公开(公告)号:EP4046882A1
公开(公告)日:2022-08-24
申请号:EP20948893.1
申请日:2020-12-22
申请人: Zhejiang Geely Holding Group Co., Ltd. , Ningbo Geely Royal Engine Components Co., Ltd. , Aurobay Technology Co., Ltd.
发明人: JING, Junchao , Liu, Yiqiang , HUANG, Weishan , ZUO, Botao , YANG, Jun , WANG, Ruiping
摘要: In order to solve a technical problem that switching between an ISG path and an EFAD path cannot be performed, the present invention provides a control method for switching a torque output path of a motor of a hybrid electric vehicle, which includes: acquiring an initial path state of a torque output path of a motor; acquiring an initial vehicle speed of the vehicle; acquiring a brake pedal opening; acquiring an initial accelerator pedal opening; acquiring an initial state of charge of a vehicle battery; if the initial path state is the ISG path, the initial state of charge is less than a first preset value, the initial vehicle speed is less than a second preset value and the initial accelerator pedal opening is greater than a third preset value, controlling the torque output path of the motor to be transitioned from the ISG path to the EFAD path; if the initial path state is the EFAD path, the initial state of charge is less than the first preset value, the brake pedal opening is greater than a fourth preset value and the initial vehicle speed is greater than a fifth preset value, controlling the torque output path of the motor to be transitioned from the EFAD path to the ISG path. The invention improves the drivability, comfort and safety of the vehicle.
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8.
公开(公告)号:EP4163170A1
公开(公告)日:2023-04-12
申请号:EP21942130.2
申请日:2021-08-19
申请人: Ningbo Geely Royal Engine Components Co., Ltd. , Aurobay Technology Co., Ltd. , Zhejiang Geely Holding Group Co., Ltd.
发明人: LIU, Yiqiang , JING, Junchao , WU, Jie , WANG, Yongjian , GUO, Wensong , HUI, Bing , WANG, Ruiping , SCHOLTEN, Ingo
摘要: An engine start-stop control method and device for a hybrid electric vehicle, and a hybrid electric vehicle belong to the technical field of vehicles. The method includes: obtaining a target parameter or a target signal, which is engine start-stop related, of the hybrid electric vehicle; determining, according to the target parameter or target signal, whether an engine start-stop related event occurs; if so, determining a level of the engine start-stop related event; and performing engine start-stop control according to the engine start-stop related event and the level thereof; wherein the engine start-stop related event includes at least one of the following: an energy management related start-stop event, a driving behavior related start-stop event, an engine state related start-stop event, an external controller request start-stop event, and other condition related start-stop events. The operating efficiency of the vehicle and the user experience are improved.
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公开(公告)号:EP4159518A1
公开(公告)日:2023-04-05
申请号:EP21873706.2
申请日:2021-08-10
申请人: Ningbo Geely Royal Engine Components Co., Ltd. , Aurobay Technology Co., Ltd. , Zhejiang Geely Holding Group Co., Ltd
发明人: JING, Junchao , LIU, Yiqiang , HUANG, Weishan , YANG, Jun , YU, Xuemei , WANG, Ruiping , SCHOLTEN, Ingo
摘要: A DCDC output voltage control method and control system for a hybrid electric vehicle, belonging to the technical field of vehicle electronics. The method includes: when a DCDC converter is in a buck operation mode, determining whether the vehicle is in a high power output demand state or an abnormal engine flame-out state; if so, setting the output voltage of the DCDC converter to a normal target voltage, to control the DCDC converter to output according to the normal target voltage; otherwise, determining whether a low-voltage load has a charging voltage boost demand, and when the low-voltage load has the charging voltage boost demand and the power of a high-voltage battery is greater than a power threshold, setting the output voltage of the DCDC converter according to the voltage level corresponding to the charging voltage boost demand, to meet the charging demand of the low-voltage load. The DCDC output voltage control method and control system of the present invention can optimize the fuel economy of a hybrid power assembly system.
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10.
公开(公告)号:EP4112409A1
公开(公告)日:2023-01-04
申请号:EP21854799.0
申请日:2021-05-20
申请人: Zhejiang Geely Holding Group Co., Ltd. , Ningbo Geely Royal Engine Components Co., Ltd. , Aurobay Technology Co., Ltd.
发明人: JING, Junchao , LIU, Yiqiang , HUANG, Weishan , ZUO, Botao , WANG, Ruiping , SCHOLTEN, Ingo
IPC分类号: B60W30/18 , B60W30/188 , B60W20/00 , B60K6/48 , B60W10/06 , B60W10/08 , B60W20/10 , B60W50/00
摘要: A method and a device for determining a requested driving force of a hybrid vehicle is disclosed in the present invention. The method for determination includes the following steps: acquiring a gear status, a current vehicle velocity, a current accelerator pedal opening and driving force mapping information of the vehicle, wherein the driving force mapping information represents a corresponding relationship among the vehicle velocity, the accelerator pedal opening and the driving force; acquiring altitude data and a drive mode of the vehicle if the gear status is that the vehicle is not in a parking gear or a neutral gear; determining a requested driving force of the vehicle based on the current vehicle velocity, the current accelerator pedal opening, the drive mode and the driving force mapping information if the altitude data is less than the preset altitude. Different methods can be used for the method for determination to obtain the requested driving force based on different drive modes, altitude data and gear status, and the current vehicle velocity and the current accelerator pedal opening can be directly convert into a demand for vehicle traction in the present invention.
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