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公开(公告)号：US11932254B1
公开(公告)日：2024-03-19
申请号：US17977397
申请日：2022-10-31
发明人： Cory Benson LaRoche , Stephen Michael Cicala , Jianping Zhang , Bradley Dean Riedle , Jesse D. L. Brunais , Michael Simon , Leonard Dziubinschi
IPC分类号： B60W30/19 , B60W10/06 , B60W10/11 , F02D41/00 , F02D41/02 , F02P5/15 , F16H59/18 , F16H61/28 , F16H59/14
CPC分类号： B60W30/19 , B60W10/06 , B60W10/11 , F02D41/0087 , F02D41/022 , F02D41/023 , F02P5/1502 , F16H59/18 , F16H61/2807 , B60W2510/1025 , B60W2510/105 , B60W2540/10 , B60W2710/0666 , B60W2710/1005 , B60W2710/1077 , F16H2059/148
摘要： A vehicle includes an engine, a transmission, and a controller. The engine is configured to generate power. The transmission is configured to transfer power from the engine to at least one drive wheel to propel the vehicle. The controller is programmed to, in response to a command to shift the transmission and a corresponding command to decrease a torque of the engine to less than a threshold corresponding to a spark retard limit during the shift, (i) increase the pressure of an oncoming clutch to engage the oncoming clutch, (ii) retard an engine spark at the spark retard limit to reduce the torque of the engine to the threshold during the engagement of the oncoming clutch, and (iii) shutdown at least one cylinder of the engine to further reduce the torque of the engine to less than the threshold during the engagement of the oncoming clutch.
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公开(公告)号：US11884259B2
公开(公告)日：2024-01-30
申请号：US18073912
申请日：2022-12-02
IPC分类号： B60W10/08 , B60W20/30 , B60K6/26 , B60K6/28 , B60K6/36 , B60K6/38 , B60W10/11 , F16H59/18 , F16H59/38 , F16H59/70 , F16H61/04 , F16H61/688 , B60W30/19 , F16H59/14 , F16H59/68
CPC分类号： B60W20/30 , B60K6/26 , B60K6/28 , B60K6/36 , B60K6/38 , B60W10/08 , B60W10/11 , B60W30/19 , F16H59/18 , F16H59/38 , F16H59/70 , F16H61/0403 , F16H61/688 , B60W2510/1005 , B60W2510/244 , B60W2540/10 , B60W2710/08 , B60W2710/10 , B60Y2200/91 , B60Y2200/92 , F16H2059/147 , F16H2059/148 , F16H2059/6807 , F16H2061/0418 , F16H2061/0422
摘要： A method for performing rotational speed synchronisation of a first transmission component having a first initial rotational speed with a second transmission component having a second initial rotational speed, so that they rotate with the same final rotational speed during a gear switch from an initial driving gear to a final driving gear in a stepped gear transmission for a hybrid electric or electric drive train having an electric traction motor. The method including calculating a total frictional work resulting from performing the total rotational speed synchronisation by means of a mechanical synchroniser of the stepped gear transmission only, and if the calculated total frictional work exceeds a maximal frictional work of the mechanical synchroniser, performing the rotational speed synchronisation by means of both the electric traction motor and the mechanical synchroniser.
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公开(公告)号：US20230406319A1
公开(公告)日：2023-12-21
申请号：US18044718
申请日：2021-09-17
发明人： Mattias ANDREASSON , Erik LAURI
IPC分类号： B60W30/19 , B60W10/10 , B60W10/08 , F16H61/04 , F16H59/42 , B60K1/02 , B60W10/02 , F16H59/14
CPC分类号： B60W30/19 , B60W10/10 , B60W10/08 , F16H61/0403 , F16H59/42 , B60K1/02 , F16H2057/02043 , F16H59/14 , B60W2510/1015 , B60W2710/081 , B60W2710/083 , B60W2710/1011 , B60W10/02
摘要： The present invention relates to a controlling apparatus for a powertrain of an electric vehicle, wherein the electric vehicle comprises a gearbox having an input shaft, a first electric machine and a second electric machine being coupled to the input shaft of the gearbox. The controlling apparatus is configured to control the operation of the first and second electric machines by the steps of:
changing the speed of the first and second electric machines to reach a target speed of the input shaft;
determining that the speed of the input shaft is within a target range of the target speed;
setting one of the first and second electric machines in a first control mode, the first control mode being speed control to adjust for changes so that the target speed of the input shaft can be kept when reached, and setting the other one of the first and second electric machines in a second control mode being different to the first control mode, in response of determining that the speed of the input shaft is within the target range.-
公开(公告)号：US11796053B2
公开(公告)日：2023-10-24
申请号：US17776619
申请日：2019-11-13
发明人： Teodoro Bora , Johan Fries , Viktor Lägnert
CPC分类号： F16H61/0213 , F16H2059/144 , F16H2059/663 , F16H2061/0015 , F16H2061/022 , F16H2061/0223 , F16H2061/0227
摘要： Methods for controlling a transmission of a vehicle are provided. Such methods include
establishing a desired speed profile for the vehicle when travelling along a road segment,
performing a plurality of simulations, each of a vehicle response, in the road segment, to a respective gear control action, wherein the gear control action differs from one simulation to another, wherein the simulations include an aim to keep the speed on the speed profile, or within one or more established limits of deviations from the speed profile,
determining costs for the simulated vehicle responses,
selecting, in dependence on the determined costs, one of the gear control actions,
controlling the transmission with the selected gear control action.-
公开(公告)号：US11584461B2
公开(公告)日：2023-02-21
申请号：US15829295
申请日：2017-12-01
摘要： Systems and methods for reporting on vehicle characteristics determined by the control system of a multi-speed automatic transmission of a vehicle are provided. The control system may output a vehicle mass alert based on a relationship between a vehicle mass threshold and a determined vehicle mass satisfying a condition. The control system may output a vehicle road grade alert based on a relationship between a vehicle road grade threshold and a determined vehicle road grade satisfying a condition.
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公开(公告)号：US11448314B2
公开(公告)日：2022-09-20
申请号：US16978610
申请日：2019-03-06
申请人： Dana Belgium N.V.
摘要： The present disclosure relates to a method for determining at least one shift parameter of a vehicle transmission (3), the vehicle transmission (3) comprising a first clutching device (8a) and a first speed ratio (9a); a second clutching device (8b) and a second speed ratio (9b); an input; and an output, wherein the input and the output of the transmission are connectable by the engaging first clutching device (8a) or the second clutching device (8b). The method comprises the steps: performing a shift by disengaging the first clutching device (8a) and/or engaging the second clutching device (8b), wherein the first clutching device (8a) stops transferring torque through the transmission at a first time point, wherein the second clutching device (8b) starts transferring torque through the transmission at a second time point, and determining the shift parameter at the first time point and/or at the second time point.
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公开(公告)号：US20220282786A1
公开(公告)日：2022-09-08
申请号：US17826381
申请日：2022-05-27
发明人： Jeffrey E. Shultz , Bruno Re , Scott Kluemper
IPC分类号： F16H59/14 , F16H59/66 , B60W10/103 , B60W40/076
摘要： Transmissions, control systems for transmissions, and methods of operating transmissions are disclosed herein. A transmission includes an input shaft, an output shaft, one or more clutches, and a control system. The input shaft is configured to receive rotational power supplied by a drive unit. The output shaft is coupled to the input shaft and configured to provide rotational power supplied to the input shaft to a load. The one or more clutches are coupled between the input shaft and the output shaft to selectively transmit rotational power between the input shaft and the output shaft in one or more operating modes of the transmission. Each of the one or more clutches is selectively engageable in response to one or more fluid pressures applied thereto. The control system is configured to control operation of the one or more clutches to select the one or more operating modes of the transmission.
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公开(公告)号：US11421781B2
公开(公告)日：2022-08-23
申请号：US17359738
申请日：2021-06-28
发明人： Hideaki Bunazawa , Atsushi Tabata , Koichi Okuda , Ken Imamura , Kota Fujii , Keita Sasaki
摘要： An oil pressure learning method of an automatic transmission includes acquiring a state of a vehicle in a state where relational regulation data is stored, supplying oil to the automatic transmission such that the value of the oil pressure is set to an oil pressure command value, calculating, as a specific variable, a variable representing an amount in which a detected input rotation speed exceeds a target input rotation speed, or the like, calculating a reward in a manner in which it has a larger value when the specific variable satisfies a criterion than when it does not satisfy the criterion, updating the relational regulation data by inputting, to an update mapping, the reward and the oil pressure command value, and calculating a torque variable having a value that is increased as an amount of change in an input torque is increased.
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公开(公告)号：US11371603B2
公开(公告)日：2022-06-28
申请号：US16901587
申请日：2020-06-15
申请人： Shimano Inc.
IPC分类号： F16H61/02 , F16H59/14 , F16H59/44 , F16H59/42 , F16H59/48 , F16H59/66 , B62M25/08 , B62J45/20 , F16H59/64
摘要： A control device and a transmission system are provided that allow for comfortable traveling with a human-powered vehicle. The control device includes an electronic controller configured to control a transmission to shift a transmission ratio of a human-powered vehicle in accordance with a first shifting condition set based on a first reference value. The electronic controller is configured to shift the transmission ratio of the human-powered vehicle regardless of the first shifting condition upon determining a second shifting condition set based on travel information related to traveling of the human-powered vehicle is satisfied.
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公开(公告)号：US11280407B2
公开(公告)日：2022-03-22
申请号：US16834209
申请日：2020-03-30
发明人： Sung Hyun Cho
摘要： A shift control method can be used for a vehicle with a dual-clutch transmission (DCT). A controller determines whether or not a power-on upshift is initiated in a state in which a high performance mode has been selected. The controller performs a torque phase in which a coupling-side clutch torque is gradually increased and a release-side clutch torque is gradually released. The coupling-side clutch torque is gradually increased to a target coupling-side clutch torque corresponding to a value obtained by adding a push feel torque to a base torque. The controller performs an inertia phase in which the coupling-side clutch torque is gradually increased while tracing an engine torque such that an engine speed is synchronized with a coupling-side clutch speed. The controller completes speed change through gradual decrease of the coupling-side clutch torque.
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