METHOD FOR CONTROLLING A HYBRID POWERTRAIN, A HYBRID POWERTRAIN, AND A VEHICLE COMPRISING SUCH A HYBRID POWERTRAIN

    公开(公告)号:US20190100206A1

    公开(公告)日:2019-04-04

    申请号:US16085925

    申请日:2017-03-22

    Applicant: Scania CV AB

    Abstract: The present invention relates to a method to control a hybrid powertrain, comprising a combustion engine, an electric machine, a gearbox with input shaft and output shaft, wherein the combustion engine and the electric machine are connected to the input shaft. The method comprises the following steps: a) disconnecting the combustion engine from the input shaft with a coupling device, b) engaging a starting gear in the gearbox, which starting gear is higher than the gear at which the combustion engine's torque at idling speed is able to operate the input shaft, c) generating a torque in the input shaft with the electric machine, d) accelerating the electric machine, and e) connecting the combustion engine to the input shaft with the coupling device when the electric machine has reached substantially the same rotational speed as the combustion engine. The invention also relates to a hybrid powertrain and a vehicle.

    METHOD AND SYSTEM FOR PROPELLING A VEHICLE
    5.
    发明申请

    公开(公告)号:US20200180601A1

    公开(公告)日:2020-06-11

    申请号:US16619403

    申请日:2018-06-01

    Applicant: Scania CV AB

    Abstract: The invention relates to a method for propelling a vehicle comprising a first power source being an internal combustion engine and a second power source comprising at least one electrical machine. The vehicle is configured to be selectively driven according to a first mode and a second mode, wherein said second mode is prioritized more in relation to fuel efficiency of said vehicle than said first mode. When a maximum power for propelling said vehicle is requested, power delivered by said first power source and said second power source is controlled such that the total power delivered by said first and said second power source exceeds the maximum deliverable power of said first power source. The total power delivered by said first and said second power source is allowed to exceed the maximum deliverable power of said first power source when said vehicle is driven according to said second mode.

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