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公开(公告)号：US20210095761A1
公开(公告)日：2021-04-01
申请号：US17017236
申请日：2020-09-10
Applicant: FERRARI S.p.A.
Inventor： Alessandro BARONE , Andrea NANNINI , Giacomo SENSERINI , Stefano MARCONI
IPC: F16H61/04
Abstract: A method to control the execution of a shift to a lower gear while an accelerator pedal is released in a drivetrain provided with a dual-clutch, servo-assisted transmission; the control method comprises the following steps: opening, in a first instant, an outgoing clutch; closing, in the first instant, an incoming clutch; completing the opening of the outgoing clutch and the closing of the incoming clutch in a second instant; synchronizing, between the second instant and a third instant, a rotation speed of the internal combustion engine with a rotation speed of the incoming clutch; and controlling the incoming clutch between the second instant and the third instant so as to have the incoming clutch temporarily transmit a greater torque than the torque that the clutch is going to transmit immediately after the shift to a lower gear and than the torque that the outgoing clutch transmitted immediately before the shift to a lower gear.
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公开(公告)号：US20210094543A1
公开(公告)日：2021-04-01
申请号：US17017246
申请日：2020-09-10
Applicant: FERRARI S.p.A.
Inventor： Alessandro BARONE , Andrea NANNINI , Giacomo SENSERINI , Stefano MARCONI
IPC: B60W30/18 , B60W10/10 , B60W10/02 , B60W40/105 , B60W40/064
Abstract: A method to control a road vehicle for the execution of a standing start; the control method comprises the steps of: engaging a gear in a transmission while a corresponding clutch is open; progressively closing the clutch causing the clutch to transmit a torque that causes the rotation of at least a pair of drive wheels; determining a target slip of the drive wheels; cyclically determining a real slip of the of the drive wheels; and continuously modulating the torque transmitted by the clutch during the closing of the clutch based of a difference between the target slip of the drive wheels and the real slip of the of the drive wheels.
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公开(公告)号：US20210095726A1
公开(公告)日：2021-04-01
申请号：US17026693
申请日：2020-09-21
Applicant: FERRARI S.p.A.
Inventor： Alessandro BARONE , Andrea NANNINI , Giacomo SENSERINI , Stefano MARCONI
IPC: F16D48/06
Abstract: A method to control a road vehicle provided with a clutch, which connects an internal combustion engine to drive wheels and is arranged upstream of a servo-assisted transmission; the control method comprises the steps of: checking whether the tyres of the drive wheels are close to a grip limit; and opening the clutch so that the clutch transmits a torque to the drive wheels with a slip of the clutch that is constant and other than zero when the tyres of the drive wheels are close to the grip limit.
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公开(公告)号：US20210094545A1
公开(公告)日：2021-04-01
申请号：US17015351
申请日：2020-09-09
Applicant: FERRARI S.p.A.
Inventor： Alessandro BARONE , Andrea NANNINI , Giacomo SENSERINI , Stefano MARCONI
Abstract: A method to control a road vehicle provided with a dual-clutch, servo-assisted transmission and standing still with the internal combustion engine turned on; the control method comprises, when the road vehicle is standing still with the internal combustion engine turned on, the steps of: engaging a forward gear associated with a first clutch; engaging a reverse gear associated with a second clutch, which is different from and independent of the first clutch; closing the first clutch so as to cause the first clutch to transmit a first torque; and closing the second clutch so as to cause the second clutch to transmit a second torque, which is equal to the first torque multiplied by the quotient between a gear ratio of the reverse gear and a gear ratio of the forward gear.
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5.发明申请公开(公告)号：US20250084922A1
公开(公告)日：2025-03-13
申请号：US18828218
申请日：2024-09-09
Applicant: FERRARI S.P.A.
Inventor： Stefano VARISCO , Andrea NANNINI , Daniele GENOVA , Lorenzo LARAIA , Alessandro BARONE
IPC: F16H61/688 , F16H61/04
Abstract: Control method to carry out a gear shift in a manual automatic transmission provided with a gearbox having at least one clutch and in a road vehicle having an internal combustion engine and at least one reversible electric machine. The control method involves the steps of: receiving a gear shift command; opening and closing the clutch to allow the drive gear to be changed from the current gear to the following gear; determining a torque objective to be generated by the electric machine; controlling the electric machine to pursue the torque objective; and adding, only and exclusively during the gear shift, to the torque objective an additional torque profile which is impulsive and temporary and temporarily modifies the development of the torque objective.
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Patent Agency Ranking
公开(公告)号：US20210095758A1
公开(公告)日：2021-04-01
申请号：US17015356
申请日：2020-09-09
Applicant: FERRARI S.p.A.
Inventor： Alessandro BARONE , Andrea NANNINI , Giacomo SENSERINI , Stefano MARCONI
Abstract: A method to control a road vehicle for the execution of a multiple downshift in a drivetrain provided with a servo-assisted transmission; the control method comprises the steps of: detecting a condition of slowing down of the road vehicle and, simultaneously, detecting a driver's request for a multiple downshift; carrying out, in succession, a plurality of downshifts while the road vehicle is slowing down and in an autonomous manner regardless of further interventions of the driver; determining a duration of a shift time interval; and carrying out each downshift following a first downshift when said shift time interval has exactly elapsed since the previous downshift.
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公开(公告)号：US20210094549A1
公开(公告)日：2021-04-01
申请号：US17026691
申请日：2020-09-21
Applicant: FERRARI S.p.A.
Inventor： Alessandro BARONE , Andrea NANNINI , Giacomo SENSERINI , Stefano MARCONI
IPC: B60W30/19 , B60W10/06 , B60W10/02 , B60W10/113 , F16H61/28 , F16H61/688
Abstract: A method to control the execution of a shift to a lower gear with a released accelerator pedal in a drivetrain provided with a dual-clutch, servo-assisted transmission; the following steps ate provided: opening, in a first instant, an outgoing clutch; closing, in the first instant, an incoming clutch; completing the opening of the outgoing clutch by means of a first linear ramp in a second instant; synchronizing, between the second instant and a third instant, a rotation speed of the internal combustion engine with a rotation speed of the incoming clutch; closing of the incoming clutch by means of a second linear ramp starting from a fourth instant, which is prior to or coincides with the second instant; completing the closing of the incoming clutch in a fifth instant, which coincides with or is subsequent to the second instant; and activating the internal combustion engine so as to generate a torque between the fourth instant and the third instant.
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公开(公告)号：US20250083537A1
公开(公告)日：2025-03-13
申请号：US18828212
申请日：2024-09-09
Applicant: FERRARI S.P.A.
Inventor： Stefano VARISCO , Andrea NANNINI , Daniele GENOVA , Jacopo CANESTRI , Lorenzo LARAIA , Alessandro BARONE
IPC: B60L15/20
Abstract: Method to control an electric road vehicle having the steps of: detecting a position of an accelerator pedal; detecting an activation of an upshift control and of a downshift control; establishing a plurality of virtual gears, each capable of being selected by acting upon the upshift control and upon the downshift control; determining the selected virtual gear depending on the actions exerted upon the upshift control and upon the downshift control; determining a torque objective to be applied to the drive wheels depending on the position of the accelerator pedal and depending on the selected virtual gear; and adding, at each change of the selected virtual gear, to the torque objective an additional torque profile which is impulsive and temporary and temporarily changes the development of the torque objective.
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公开(公告)号：US20210095760A1
公开(公告)日：2021-04-01
申请号：US17017242
申请日：2020-09-10
Applicant: FERRARI S.p.A.
Inventor： Alessandro BARONE , Andrea NANNINI , Giacomo SENSERINI , Stefano MARCONI
Abstract: A method to automatically control a drivetrain provided with a servo-assisted transmission; the method comprises the steps of: measuring a rotation speed of the internal combustion engine; carrying out a shift to a lower gear in an autonomous manner and independently of an intervention of a driver, when the rotation speed of the internal combustion engine reaches a lower threshold; carrying out a shift to a higher gear in an autonomous manner and independently of an intervention of the driver, when the rotation speed of the internal combustion engine reaches an upper threshold; detecting a release of an accelerator pedal in a first instant; waiting, starting from the first instant, a time interval until a second instant, which is subsequent to the first instant; and increasing a value of the lower threshold starting from the instant until a following pressing of the accelerator pedal.
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10.发明申请公开(公告)号：US20210095759A1
公开(公告)日：2021-04-01
申请号：US17015359
申请日：2020-09-09
Applicant: FERRARI S.p.A.
Inventor： Alessandro BARONE , Andrea NANNINI , Giacomo SENSERINI , Stefano MARCONI
Abstract: A method to control a road vehicle provided with a servo-assisted transmission during a slowing down phase; the control method comprises, when the servo-assisted transmission is in an automatic operating mode, the steps of: calculating, assuming that a pressing of the brake pedal remains constant, an opening time interval needed to allow the road vehicle to reach an opening speed at which a clutch of the servo-assisted transmission is definitively opened; calculating a number of downshifts that can be carried out in the opening time interval based on a time needed to carry out a downshift; scheduling the downshifts to be carried out in order to get from the current gear engaged in the servo-assisted transmission to an opening gear with which the clutch of the servo-assisted transmission is definitively opened, so as to carry out no more than the number of downshifts that can be carried out in the opening time interval; and carrying out the scheduled downshifts.
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