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公开(公告)号：US20240401696A1
公开(公告)日：2024-12-05
申请号：US18700697
申请日：2022-10-12
Applicant: JAGUAR LAND ROVER LIMITED
Inventor： Daniel LOFTUS , Giuseppe FAVORITO , Jonathan GREEN
Abstract: Embodiments of the present invention provide a vehicle drivetrain assembly operable in a first mode and a second mode. The vehicle drivetrain assembly comprises: a drive unit arranged to generate power to drive a vehicle (1); an automatic transmission comprising a torque converter and operatively coupled to the drive unit to receive the power; and a control system comprising one or more controllers (11), the control system being arranged to adjustably limit the maximum torque delivered to the transmission from the drive unit. When the automatic transmission is in first gear with the torque converter stalled, the control system limits the maximum torque to a first level when the vehicle drivetrain assembly is in the first mode and to a second level when the vehicle drivetrain assembly is in the second mode, the first level being lower than the second level.
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公开(公告)号：US12152727B2
公开(公告)日：2024-11-26
申请号：US18200176
申请日：2023-05-22
Applicant: SUBARU CORPORATION
Inventor： Ryusei Wada , Taishi Kobayashi , Junji Harada
Abstract: An oil temperature estimation apparatus that estimates an oil temperature of a driving system of a vehicle includes a vehicle speed sensor, a saturated oil temperature acquirer, an oil temperature deviation acquirer, an oil temperature feedback value acquirer, and an estimated oil temperature acquirer. The saturated oil temperature acquirer acquires a saturated oil temperature in a running state of the vehicle at least including a vehicle speed based on the running state. The oil temperature deviation acquirer acquires an oil temperature deviation between the saturated oil temperature and an estimated oil temperature previous value. The oil temperature feedback value acquirer acquires an oil temperature feedback value based on the oil temperature deviation and the vehicle speed. The estimated oil temperature acquirer acquires an estimated oil temperature current value based on the estimated oil temperature previous value and the oil temperature feedback value.
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公开(公告)号：US10859158B2
公开(公告)日：2020-12-08
申请号：US16596440
申请日：2019-10-08
Inventor： Thomas Connolly , Joseph Paul Furner , Sipei Chen , Jeff Hawarden , Ian Daniel McKenzie , Christopher DeBoer
IPC: F16H59/60 , F16H59/62 , F16H59/64 , F16H59/02 , F16H37/04 , G08B13/00 , G08B27/00 , F16H3/64 , F16H57/02 , F16H61/06 , F16H61/08 , H04B10/077 , H04J3/12 , B60W10/02 , B60W10/11 , B60W30/19 , B60W50/00 , F16D25/12 , F16H3/091 , F16H61/00 , F16H61/02 , F16H57/021 , F16H57/04 , F16H61/04 , F16H63/00 , F16H59/72 , F16H63/24 , F16H61/30 , F16H57/032 , F16H61/28 , F16H63/30 , F16H61/682 , F16H3/16 , F16H3/78 , F16H59/40 , F16H61/14 , F16H61/70 , F16H59/38
Abstract: A transmission includes an input shaft coupled to a prime mover, a countershaft, main shaft, and an output shaft, with gears between the countershaft and the main shaft. A shift actuator selectively couples the input shaft to the main shaft by rotatably coupling gears between the countershaft and the main shaft. The shift actuator is mounted on an exterior wall of a housing including the countershaft and the main shaft. A controller controls the shift actuator utilizing an actuating pulse and an opposing pulse.
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公开(公告)号：US10859157B2
公开(公告)日：2020-12-08
申请号：US16596431
申请日：2019-10-08
Inventor： Thomas Connolly , Joseph Paul Furner , Sipei Chen , Jeff Hawarden , Ian Daniel McKenzie , Christopher DeBoer
IPC: F16H59/60 , F16H59/62 , F16H59/64 , F16H59/02 , F16H37/04 , G08B13/00 , G08B27/00 , F16H3/64 , F16H57/02 , F16H61/06 , F16H61/08 , H04B10/077 , H04J3/12 , B60W10/02 , B60W10/11 , B60W30/19 , B60W50/00 , F16D25/12 , F16H3/091 , F16H61/00 , F16H61/02 , F16H57/021 , F16H57/04 , F16H61/04 , F16H63/00 , F16H59/72 , F16H63/24 , F16H61/30 , F16H57/032 , F16H61/28 , F16H63/30 , F16H61/682 , F16H3/16 , F16H3/78 , F16H59/40 , F16H61/14 , F16H61/70 , F16H59/38
Abstract: A transmission includes an input shaft coupled to a prime mover, a countershaft, main shaft, and an output shaft, with gears between the countershaft and the main shaft. A shift actuator selectively couples the input shaft to the main shaft by rotatably coupling gears between the countershaft and the main shaft. The shift actuator is mounted on an exterior wall of a housing including the countershaft and the main shaft. A controller controls the shift actuator utilizing an actuating pulse and an opposing pulse.
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公开(公告)号：US20180283542A1
公开(公告)日：2018-10-04
申请号：US15926091
申请日：2018-03-20
Applicant: HONDA MOTOR CO., LTD.
Inventor： Yutaka Ishikawa , Yuya Tachibanada
CPC classification number: F16H61/12 , B60Y2400/302 , B60Y2400/306 , F16H59/64 , F16H59/78 , F16H2061/1208 , F16H2061/1284
Abstract: A control apparatus of an automatic transmission connected to an internal combustion engine of a vehicle includes a determination unit configured to determine an operation state of a hydraulic oil temperature sensor based on comparison between a threshold and a difference between a hydraulic oil temperature of the automatic transmission and a cooling water temperature of the internal combustion engine. When the operation state of the hydraulic oil temperature sensor is determined as normal by the comparison with the threshold, the determination unit further determines the operation state of the hydraulic oil temperature sensor based on an operation state of an oil pressure sensor determined using the hydraulic oil temperature, an oil pressure of hydraulic oil, and a rotation speed.
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Patent Agency Ranking
公开(公告)号：US09625031B2
公开(公告)日：2017-04-18
申请号：US14912298
申请日：2014-08-07
Applicant: JAGUAR LAND ROVER LIMITED
Inventor： Emil Sahlberg , Andi Lowndes , Kirk Bradshaw
CPC classification number: F16H61/0213 , F16H59/62 , F16H59/64 , F16H2059/663 , F16H2061/023
Abstract: A method and apparatus for modifying the shift map of an automatically controlled vehicle transmission having individually selectable speed ratios. A calibrator determines launch ratio from a plurality of speed ratios and is responsive to ambient pressure and/or ambient temperature. The calibrator may be further responsive to engine speed, engine temperature, transmission temperature, gradient and direction of gradient.
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公开(公告)号：US20160305542A1
公开(公告)日：2016-10-20
申请号：US15192504
申请日：2016-06-24
Applicant: Ford Global Technologies, LLC
Inventor： Manfred Koberstein , Tina M. Maurer , Stephen R. Dennon , Ranganathan Madhavan , Jim C. Rollinson
CPC classification number: F16H61/0213 , B60W10/06 , B60W10/11 , B60W10/30 , B60W30/1886 , B60W2550/12 , B60W2560/00 , B60W2710/1005 , F16H59/64 , Y10T477/653
Abstract: A method and system for the cancellation of transmission shift delay as a function of an optimum target temperature is disclosed. Once the pre-selected optimum target is achieved the shift delay is cancelled and the transmission is upshifted. Thus the disclosed inventive concept is based the cancellation of the shift delay on achieving climate control air conditioning comfort targets. Such comfort targets could include one or more of the measured HVAC evaporator temperature, the HVAC discharge temperature, or the in-vehicle cabin temperatures. When a temperature sensor measuring the selected temperature reaches the pre-selected target temperature the shift delay may be cancelled and the transmission may be upshifted, thus maximizing passenger comfort while minimizing fuel consumption. Having the shift delay based upon the achievement of specific measurable comfort targets in the form of target temperatures rather than a set time period allows optimization between cabin comfort and fuel efficiency.
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公开(公告)号：US07553257B2
公开(公告)日：2009-06-30
申请号：US11496515
申请日：2006-08-01
Applicant: Ryouhei Shigeta , Tomoaki Kato , Akihiro Ohno , Tsuyoshi Murakami , Tadashi Yoshioka , Shunzo Tanaka
Inventor： Ryouhei Shigeta , Tomoaki Kato , Akihiro Ohno , Tsuyoshi Murakami , Tadashi Yoshioka , Shunzo Tanaka
CPC classification number: B60W30/1843 , B60W2510/0291 , Y10T477/653 , Y10T477/75
Abstract: An ECU estimates the temperatures of the heat generating portions provided in a drive force transmission system, or a transaxle, a rear differential, and a torque coupling, in correspondence with not only the rotational speed (the differential rotational speed) of each heat generating portion and the torque transmission rate of the torque coupling but also the outside temperature detected by an outside temperature sensor. If the estimated temperature of any of the heat generating portions exceeds a respective predetermined temperature, the ECU controls operation of the torque coupling to suppress overheating of the heat generating portion. That is, the temperature of each heat generating portion is accurately detected through a simplified structure and overheating of the heat generating portion is effectively suppressed.
Abstract translation: ECU根据不同于每个发热部分的转速（差速旋转速度）来估计设置在驱动力传递系统或变速驱动桥，后差速器和转矩联轴器中的发热部分的温度， 以及扭矩耦合的转矩传递速率，以及由外部温度传感器检测到的外部温度。 如果任何发热部分的估计温度超过相应的预定温度，则ECU控制扭矩耦合的操作以抑制发热部分的过热。 也就是说，通过简化的结构精确地检测每个发热部分的温度，并且有效地抑制了发热部分的过热。
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公开(公告)号：US20090011901A1
公开(公告)日：2009-01-08
申请号：US12153957
申请日：2008-05-28
Applicant: Frank A. DeMarco
Inventor： Frank A. DeMarco
CPC classification number: F16H57/0413 , B60W10/06 , B60W10/11 , B60W30/194 , F16H47/04 , F16H59/72 , F16H61/0059 , F16H61/4165 , F16H2037/0886 , Y10T477/6203 , Y10T477/6217 , Y10T477/653
Abstract: A method is provided for increasing a temperature of oil in a continuously variable transmission during engine start-up, the transmission including a fluid pump and motor, and a mechanical transmission. The method includes starting the engine, maintaining the fluid pump at substantially zero displacement, and heating the transmission oil by relative rotation of a first clutch disc and first clutch hub of a first clutch assembly and by relative rotation of a second clutch disc and second clutch hub of a second clutch assembly. The method further includes maintaining a substantially zero net torque from the transmission during the heating of the oil by the first and second clutch assemblies.
Abstract translation: 提供一种用于在发动机起动期间增加无级变速器中的油的温度的方法，所述变速器包括流体泵和马达以及机械变速器。 该方法包括启动发动机，将流体泵维持在基本上零位移，并且通过第一离合器盘和第一离合器组件的第一离合器轮毂相对旋转并通过第二离合器盘和第二离合器的相对旋转来加热变速器油 第二离合器组件的轮毂。 该方法还包括在由第一和第二离合器组件加热油期间保持来自变速器的基本上零的净转矩。
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公开(公告)号：US07438664B2
公开(公告)日：2008-10-21
申请号：US11408023
申请日：2006-04-21
Applicant: Kenichi Saito
Inventor： Kenichi Saito
CPC classification number: B60W20/00 , B60L2240/425 , B60L2240/445 , B60L2260/12 , B60W10/06 , B60W10/08 , B60W2510/0628 , B60W2510/0676 , B60W2510/087 , F02D41/1497 , F02D2041/2065 , F02D2250/18 , Y02T10/6286 , Y02T10/642 , Y10T477/23 , Y10T477/653
Abstract: In a hybrid vehicle incorporating an internal combustion engine having an in-cylinder injector and a motor, when the temperature of the in-cylinder injector rises, if a current engine operation point is inside a prescribed intermediate load range (deposit risk range) where the temperature of the in-cylinder injector tends to rise, an engine load is increased or reduced while an engine speed is maintained, to thereby change the engine operation point to an engine operation point inside a low load range or to an engine point inside a high load range. A reduction or an increase in the engine output associated with the change of the engine operation point is compensated for by increasing or reducing the output of the motor. Thus, deposit accumulation in the in-cylinder injector is avoided.
Abstract translation: 在搭载具有缸内喷射器和电动机的内燃机的混合动力车辆中，当缸内喷射器的温度升高时，如果当前的发动机运转点在规定的中间负荷范围（存款风险范围）内， 缸内喷油器的温度趋于上升，发动机负荷在保持发动机转速的同时增加或减少，从而将发动机运转点改变为低负荷范围内的发动机运转点，或将发动机运转点改变为高位内的发动机点 负载范围。 通过增加或减少电动机的输出来补偿与发动机操作点的变化相关的发动机输出的减小或增加。 因此，避免了缸内喷射器中的沉积物积聚。
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