公开(公告)号：US20200164865A1

公开(公告)日：2020-05-28

申请号：US16384030

申请日：2019-04-15

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Gi Young Kwon ,  Kyung Hun Hwang ,  Kyung Taek Lee ,  Hoon Han ,  Hyun Woo Lim ,  Dong Jun Shin

IPC: B60W20/30 ,  B60W10/113 ,  B60W10/02 ,  F16D48/06

Abstract: A clutch control method for a hybrid vehicle with a DCT is provided. The method includes determining an energy-saving possible period based on a selection state of shifting ranges, operation states of an accelerator pedal and a brake pedal, and the gradient of a road on which the vehicle is driven. An operation current is set for maintaining a clutch, which is configured to engage the first gear, engaged as 0 A in response to determining that a current state of the vehicle is in the energy-saving possible period.

公开(公告)号：US10589744B2

公开(公告)日：2020-03-17

申请号：US16009563

申请日：2018-06-15

Applicant: Hyundai Motor Company ,  Kia Motors Corp.

Inventor： Sung Hyun Cho

IPC: B60W30/18 ,  B60W10/02 ,  B60W10/06 ,  B60W10/113 ,  B60W30/19

Abstract: A shifting control method for a vehicle with a dual clutch transmission (DCT), the shifting control method may include controlling engine torque to be increased according to reserve demand torque by giving the reserve demand torque of an engine to be increased to a predetermined value or more when if a controller determines that the vehicle enters a manual power off and downshift shifting; controlling, by the controller, a release side clutch to be released; controlling, by the controller, an engine torque to perform a control so that engine speed follows coupling side input shaft speed; and completing the shifting by performing a control so that a coupling side clutch is coupled when it is determined that the actual shift is completed.

公开(公告)号：US10525963B2

公开(公告)日：2020-01-07

申请号：US15702729

申请日：2017-09-12

Applicant: Honda Motor Co., Ltd.

Inventor： Hideaki Iwashita ,  Kazuhiko Kitano

IPC: B60W20/10 ,  B60W10/06 ,  B60W10/11 ,  B60K6/48 ,  B60W20/50 ,  B60W10/08 ,  B60W20/30 ,  B60W50/04 ,  B60K6/547 ,  B60W10/113 ,  B60W30/18 ,  B60W50/14 ,  B60W50/02

Abstract: A revolution rate sensor configured to detect a revolution rate of a first input shaft and an ECU configured to estimate the revolution rate of the first input shaft using another method which is not based on detection of the revolution rate sensor are provided, and the ECU performs engagement permission determination of a switching mechanism associated with the lowest shift stage in first engagement switching mechanisms using an estimated value of the revolution rate of the first input shaft estimated by the ECU when it is determined that a revolution rate of the first input shaft cannot be detected normally by the revolution rate sensor.

公开(公告)号：US20190390766A1

公开(公告)日：2019-12-26

申请号：US16191253

申请日：2018-11-14

Applicant: GETRAG FORD TRANSMISSIONS GMBH

Inventor： Guido Dickers ,  Oliver Poetz ,  Klaus Badke

IPC: F16H61/02 ,  F16H61/688 ,  B60W10/113 ,  F16H61/431

Abstract: Hydraulic control device for an automated dual clutch transmission having first and second clutches with first and second sub-transmissions and also a gear shifting system. The hydraulic control device has a regulating unit that predetermines at least one regulated pressure and/or one regulated volume flow for actuating the first and second clutches and shifting system. The hydraulic control device has a switching device that is arranged between the regulating unit and the clutches or the shifting system, switching the regulated pressure or volume flow to the clutches or the shifting system. The regulating unit includes a first regulating valve and a second regulating valve that is connected to an oil pressure supply having a system pressure regulator and an electric oil pump.

公开(公告)号：US20190389447A1

公开(公告)日：2019-12-26

申请号：US16434902

申请日：2019-06-07

Applicant: FERRARI S.p.A.

Inventor： Renaud MARLIER ,  Andrea PEZZATI

IPC: B60W10/113 ,  F16H37/06 ,  F16H3/00 ,  B60W20/20

Abstract: A road vehicle with hybrid drive having: at least one pair of drive wheels; an internal combustion engine; a reversible electric machine; and a dual-clutch transmission. The dual- clutch transmission has: a first primary shaft and a second primary shaft; a first clutch interposed between the internal combustion engine and the first primary shaft; and a second clutch interposed between the internal combustion engine and the second primary shaft; a third clutch, which is interposed between a shaft of the electric machine and the first primary shaft so as to connect/disconnect the shaft of the electric machine to/from the first primary shaft; and a fourth clutch, which is interposed between the shaft of the electric machine and the second primary shaft so as to connect/disconnect the shaft of the electric machine to/from the second primary shaft.

公开(公告)号：US20190257420A1

公开(公告)日：2019-08-22

申请号：US16054837

申请日：2018-08-03

Applicant: Hyundai Motor Company ,  Kia Motors Corp.

Inventor： Sung Hyun Cho ,  Seong Hwan Cheong

IPC: F16H61/688 ,  F16H61/12 ,  B60W10/02 ,  B60W10/06 ,  B60W10/113 ,  B60W20/00

Abstract: A control method for a vehicle with a Dual Clutch Transmission (DCT) may include: determining whether it is a wheel speed-unknown state by a TCU, determining whether an input shaft speed sensor is in a normal state when it is the wheel speed-unknown state, determining whether IG-OFF occurs when it is the wheel speed-unknown state and the input shaft speed sensor IS for is in a normal state, storing information related to the current wheel speed-unknown state and an output shaft speed of the DCT determined by the input shaft speed sensor, determining whether the TCU is not in TCU latch-off and whether it was the wheel speed-unknown state immediately before IG-OFF on the basis of the stored data, when IG-ON occurs, and performing pre-engaging on the basis of the DCT output shaft speed stored immediately after IG-OFF, when the TCU is not in latch-off and it was the wheel speed-unknown state immediately before IG-OFF.

公开(公告)号：US20190248371A1

公开(公告)日：2019-08-15

申请号：US16009563

申请日：2018-06-15

Applicant: Hyundai Motor Company ,  Kia Motors Corp.

Inventor： Sung Hyun Cho

IPC: B60W30/18 ,  B60W10/02 ,  B60W10/06 ,  B60W10/113 ,  B60W30/19

Abstract: A shifting control method for a vehicle with a dual clutch transmission (DCT), the shifting control method may include controlling engine torque to be increased according to reserve demand torque by giving the reserve demand torque of an engine to be increased to a predetermined value or more when if a controller determines that the vehicle enters a manual power off and downshift shifting; controlling, by the controller, a release side clutch to be released; controlling, by the controller, an engine torque to perform a control so that engine speed follows coupling side input shaft speed; and completing the shifting by performing a control so that a coupling side clutch is coupled when it is determined that the actual shift is completed.

公开(公告)号：US10316957B2

公开(公告)日：2019-06-11

申请号：US15637662

申请日：2017-06-29

Applicant: HYUNDAI MOTOR COMPANY ,  KIA MOTORS CORPORATION

Inventor： Sung Hyun Cho ,  Sang Mo Ha

IPC: B60W10/02 ,  B60W10/06 ,  B60W10/113 ,  F16H59/56 ,  F16H61/02 ,  F16H61/12 ,  F16H61/688 ,  F16H59/20 ,  F16H61/04 ,  F16H59/18 ,  F16H63/50

Abstract: A vehicle is equipped with a dual clutch transmission controlled by a shifting control method to achieve quick shifting and direct engaging through quick synchronous control of the rotational speed of an engine and cooperative control of engine torque when a driver intends to rapidly accelerate the vehicle while shifting. The method includes: a rapid acceleration determining step in which a controller determines whether the vehicle is rapidly accelerated based on an output value according to a driving state of the vehicle until a torque handover period is entered, when shifting is started; and an interlocking step of controlling the engagement clutch torque over a predetermined desired engagement clutch torque to cause interlocking based on a torque value determined in accordance with a rapid acceleration level determined in the torque handover period, when the controller determines that the vehicle is rapidly accelerated.

公开(公告)号：US10253871B2

公开(公告)日：2019-04-09

申请号：US15317433

申请日：2015-06-01

Applicant: JAGUAR LAND ROVER LIMITED

Inventor： Markus Hose

IPC: F16H61/02 ,  B60W30/18 ,  B60W10/11 ,  B60W10/113 ,  B60W10/18 ,  B60W50/14 ,  F16H59/66 ,  F16H61/16 ,  F16H61/688 ,  F16H59/14 ,  F16H59/24 ,  F16H59/44 ,  F16H59/54 ,  F16H59/74 ,  F16H59/50

Abstract: Aspects of the present invention relate to a method of using a transmission with multiple clutches in order to provide improved methods of traction control on a hill ascent. Embodiments provide for the use of power-shift, automatic or dual clutch gearboxes.

公开(公告)号：US10196060B2

公开(公告)日：2019-02-05

申请号：US15023237

申请日：2013-10-11

Applicant: VOLVO TRUCK CORPORATION

Inventor： Fredrik Karpenman

IPC: B60W30/18 ,  B60W10/113 ,  F16H61/04 ,  F16H61/688 ,  B60W10/02 ,  B60W10/06

Abstract: A method is provided for preselecting a gear in a multi-clutch transmission of a vehicle upon exiting free-wheeling state, wherein the multi-clutch transmission being operated in a free-wheeling state having a gear of a first set of gears preselected and a first friction clutch being disengaged; the method including the steps of: A) upon determining that at least one predetermined condition for exiting free-wheeling state is met; increasing the rotational speed of the prime mover towards a rotational synchronization speed of the preselected gear; the second friction clutch being in a closed state such that the rotational speed of the input shaft of the second friction clutch increases with the increasing rotational speed of the prime mover; B) disengaging the second friction clutch; C) engaging, at a suitable time point, at least one tooth clutch of the second subset of the tooth clutches corresponding to a gear of the second set of gears such that the gear of the second set of gears becomes preselected.