METHOD, APPARATUS, AND SYSTEM FOR CONTROLLING ENGINE, AND VEHICLE

    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

    IPC分类号: B60W20/12 B60W20/16

    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.

    CLUTCH CONTROL METHOD, CONTROL APPARATUS, STORAGE MEDIUM, AND PROGRAM PRODUCT

    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

    IPC分类号: F16D48/06 F16D13/58 F16H61/02

    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.

    METHOD FOR CONTROLLING SWITCHING OF MOTOR TORQUE OUTPUT PATH OF HYBRID AUTOMOBILE

    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

    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.