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序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
261 하이브리드 차량의 엔진 클러치 유압 제어 장치 및 방법 KR1020120147607 2012-12-17 KR1020140078341A 2014-06-25 이승호; 홍성우
Disclosed are a method and a device for controlling the oil pressure of an engine clutch of a hybrid vehicle. The present invention can reduce output torque changes in a transmission due to the slip of an engine clutch by controlling an engine clutch based on control pressure of predetermined hydraulic pressure duty pattern to control the slip of an engine clutch when a vehicle speed exceeds a predetermined speed by increasing RPM to a predetermined level, thereby minimizing shifting shocks and shifting impacts generated at the end of shifting and improving riding comfort and shifting sensation.
262 CONTROL DEVICE AND TRANSMISSION SYSTEM US16901587 2020-06-15 US20210010588A1 2021-01-14 Satoshi SHAHANA; Mitsuhiko KAWASAKI
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.
263 Control apparatus US15926091 2018-03-20 US10267416B2 2019-04-23 Yutaka Ishikawa; Yuya Tachibanada
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.
264 Apparatus and method for rapid warm-up of a combustion engine US13624991 2012-09-24 US08858393B2 2014-10-14 Thomas D. Nogle
A transmission and a method for loading an engine in a vehicle. The transmission includes a gear set, an input shaft coupled to the gear set, and a plurality of friction elements coupled to the gear set. The transmission also includes a control system to direct a subset of the plurality of friction elements to engage the gear set to stall the input shaft thereby placing a load on the engine. The load causes additional heat that may be used to warm up the vehicle's passenger compartment and/or defrost the vehicle's windshield.
265 Method and system for cabin heating US13850199 2013-03-25 US08636622B2 2014-01-28 Joseph Norman Ulrey; Ross Dykstra Prusifull
Methods and systems are provided for selectively increasing an amount of waste heat generated by an idling engine. An engine output is increased while a transmission output is locked to generate waste heat that may be used to heat the cabin of a stopped vehicle.
266 Thermal protection of an electric drive system US11863592 2007-09-28 US08062170B2 2011-11-22 Stephen T. West; Wei D. Wang; Brian A Welchko; Steven E. Schulz; Peter E. Wu
Temperature of an electric drive is regulated to prevent undesirable thermal effects. Temperature conditions of the electric drive system are monitored and torque of the electric drive system is limited based on the temperature conditions.
267 Powertrain Thermal Management System US12616741 2009-11-11 US20110111920A1 2011-05-12 James Thomas Gooden; Don Peter Schneider; Kenneth Gerard Brown
The present disclosure relates to a thermal management system for a vehicle powertrain and a method for heating the transmission. Exemplary thermal management systems include a heater core, a transmission fluid warmer selectively in thermal communication with the heater core, a bypass valve between the heater core and transmission fluid warmer configured to control fluid flow therebetween, a control module configured to control the bypass valve, and a timer linked to the control module configured to delay deactivation of the bypass valve.
268 Method and system for controlling a propulsion system of an alternatively powered vehicle US11877115 2007-10-23 US07789794B2 2010-09-07 Khang Thanh Hong; William David Treharne; Paul Stephen Bryan; Shunsuke Okubo
Inverters of a hybrid electric vehicle are cooled by a coolant. Expected temperature differences between the inverters and the coolant are determined based on vehicle parameters. Actual temperature differences between the inverters and the coolant are compared to the expected temperature differences. A maximum output torque is reduced if the actual temperature differences exceed the expected temperature differences.
269 Starting device for motor vehicles US11148344 2005-06-09 US07329206B2 2008-02-12 Tomohiko Tanaka
A starting device has a first friction element, a second friction element, and a control unit controlling them to change their power transmission states. The friction elements are arranged between an engine and wheels. The control unit controls the first element to produce creep torque by its slippage for creep of a motor vehicle. It includes a slip state judging means judging an excessive slip state of the first element in which it deviates from a permissible slip state, and a slip state shifting means shifting the slip state of the first element and a power transmission state of the second element so as to perform a protect control in which a slip amount of the first element decreases and the second element slips, in a case where the slip state judging means judges the excessive slip state.
270 Method for vehicle thermal management US11161327 2005-07-29 US07309536B2 2007-12-18 David Crist Gabriel; James Paul McCarthy
A method is provided which uses, or which calculates, a temperature gradient of a portion of a vehicle to determine a value equal to, or representative of, a time before a maximum allowable operating temperature is reached by the portion. If the value is less than a certain threshold, the apparatus reduces the operating speed of the portion and, in one embodiment, provides a warning signal to an operator of the vehicle.
271 Model-based control for torque biasing system US11514070 2006-08-31 US07258648B2 2007-08-21 William E. Smith; Eric A. Bansbach
A power transmission device equipped with a torque biasing system and control system for controlling the torque biasing system is operable to determine a torque command and calculate a torque error based on the torque command and a model-based torque. A control signal is generated based on the torque error and the torque biasing system is operated based on the control signal.
272 Power output apparatus and hybrid vehicle US11140973 2005-06-01 US07255662B2 2007-08-14 Yoshihiko Hiroe; Yoshiaki Kikuchi
An idle rotation speed Nidl of an engine is set to increase with an increase in actual vehicle speed V and with an increase in measured temperature Tb of a battery (step S160). The drive control of the invention controls the engine and two motors to idle the engine at the preset idle rotation speed Nidl and to ensure output of a required power corresponding to a torque demand Tr* to a drive shaft within a range between an input limit Win and an output limit Wout of the battery (steps S190 to S230). Such control enables the engine to have a high following capability and promptly change its output power level in response to a change in power demand P*, which is accompanied by an abrupt variation in torque demand Tr*. The technique of the invention thus desirably reduces the required level of charging or discharging of the battery, which is triggered by a response delay of the engine.
273 Vehicle transmission control system US11085013 2005-03-21 US07226386B2 2007-06-05 Tsutomu Akaike
Clutch pressure is reduced to an initial pressure, and a transmission operation state is stored, when a vehicle is stopped with an engine in an idling state. The clutch pressure is further reduced at a constant change rate and the amount of time is measured until the turbine rotation speed increases to the predetermined rotation speed. Based on the measured amount of time, a correction amount is computed for the initial pressure necessary to increase the turbine rotation speed to the predetermined rotation speed in a predetermined amount of time. The correction amount is stored in a memory region corresponding to the transmission operation state when the clutch pressure is reduced to the initial pressure. The initial pressure is corrected according to the correction amount stored in the memory region corresponding to the transmission operation state when the clutch. pressure is reduced.
274 Upshift control method of a vehicle automatic transmission US11016213 2004-12-17 US07192385B2 2007-03-20 Pyung Hwan Yu
The upshift control method of an automatic transmission for vehicles includes determining whether a start condition of a damper clutch control operation is satisfied during an upshift under a power-off. The method also includes executing the damper clutch control operation depending on predetermined control intervals and control duties in order to enhance a shift feel, the predetermined control intervals and control duties being set on the basis of a shift speed, a turbine RPM, and a transmission oil temperature, when the start condition of the damper clutch operation control is satisfied. The method further includes executing a fuel cut control after a damper clutch is engaged by the damper clutch control operation.
275 Shift control system for automatic transmission US10236873 2002-09-05 US07044887B2 2006-05-16 Hiroyasu Tanaka; Shigeki Shimanaka; Satoshi Takizawa; Masatoshi Akanuma; Takayuki Suzuki
A shift control system for a vehicle automatic transmission includes a vehicle speed sensor for detecting a vehicle speed, and a first control means normally performs a shift control of the transmission so that a target speed ratio of the transmission is achieved, which is determined based at least on a vehicle speed detected by the vehicle speed sensor. The shift control system further includes a second control means that properly performs shift control of the transmission when the vehicle speed sensor is in trouble, by generating a command for holding or changing a current speed ratio based on an input rotation speed of the transmission and/or driver's accelerating or decelerating operation of the vehicle.
276 Control system for the drive of a pto for an agricultural vehicle US10236589 2002-09-06 US06942595B2 2005-09-13 Oliver Hrazdera
A control system for the drive of a power take-off mechanism on an agricultural tractor that records machine-specific values of the implement attached to the tractor. The drive train between the tractor engine and the power take-off includes a CVT transmission. The control device is connected with a processor via a signal lead for receiving its output signals. The control device is connected for the formation of output signals via input leads with switches, controls, sensors, and actuators for the tractor to read the machine specific parameters of the attached implement.
277 System for estimating temperature of vehicle hydraulically-operated transmission US921353 1997-08-29 US5960669A 1999-10-05 Tatsuyuki Ohashi; Yoshirou Tashiro; Toshiyuki Suzuki; Kaname Tokita
A system for estimating a temperature of a vehicle hydraulically-operated transmission including a hydraulic torque converter, a plurality of frictional engaging elements such as clutches installed in the transmission and a hydraulic pressure supplying circuit for discharging hydraulic fluid from one of said plurality of frictional engaging elements and for supplying hydraulic fluid to another to bring said one and another one of said plurality of frictional engaging elements into operation such that gear-shift is effected in the transmission. A heat quantity generated by the hydraulic coupling means (.DELTA.Ttr), a heat quantity generated by at least one of the frictional engaging elements at gearshift (.DELTA.Tcl(No)), a heat quantity generated by stirring of the hydraulic fluid (.notident.Tst), a heat quantity generated or absorbed at a heat exchanger which exchanges heat from the fluid (.DELTA.Tra), and some similar values are calculated and summed to estimate a temperature of the clutches, thereby enabling a fine hydraulic pressure control.
278 Shift torque management US497167 1995-06-30 US5562567A 1996-10-08 Melissa M. Koenig; William J. Vukovich
A motor vehicle having an automatic transmission coupled to an internal combustion engine includes computer based control of powertrain functions including engine torque management and ratio change controls. Shift pressure is scheduled off of the total torque to be transferred to the on-coming friction element, estimated as a function of transmission input torque and powertrain inertia torque constituents. Engine torque during a shift is reduced in a manner which accounts for the relative contributions of transmission input torque and inertia torque constituents of shift torque in order to arrive at a predetermined target shift torque regardless of the proportion mix of the torque constituents.
279 Four speed ratio automatic power transmission US210536 1988-06-23 US4884471A 1989-12-05 Walter E. Daggett; Stanley J. Zaracki
A multiple speed transmission for an automotive vehicle includes three simple planetary gear units and clutches and brakes applied and released selectively to produce four forward speed ratios and reverse drive. Two of the gears units produce three of the four drive torque delivery paths and the reverse drive torque delivery path. A third gear unit, located between a torque converter and the first and second gear units, produces an overdrive speed ratio. A coast clutch is engaged to produce an engine braking effect in each of three manually selected speeds; an overdrive brake produces engine braking in the fourth speed automatic range.
280 Device for controlling engine torque in vehicle US936502 1986-12-01 US4815340A 1989-03-28 Kunihiro Iwatsuki; Yoshio Shindo
A device for controlling engine torque in a vehicle which includes an engine and an automatic transmission, and for changing the engine torque during shifting of the automatic transmission by an engine torque change value determined in association with at least engine load. The device includes a detecting device for detecting at least one of intake air pressure, cooling water temperature of an engine, oil temperture of an engine, and oil temperature in a hydraulic control device of the automatic transmission; a determining device for determining the engine torque change value in further association with at least one of the intake air pressure, the cooling water temperature of the engine, the oil temperature of the engine, and the oil temperature in the hydraulic control device of the automatic transmission; and a changing device for changing engine torque during-shifting of the automatic transmission by the determined engine torque change value. With the engine torque controlling device, satisfactory shift characteristics can be constantly obtained irrespective of the influence of enviromental factors on either engine output or the behavior of a hydraulic control device of the automatic transmission, so that shift shock can be decreased and the durability of the frictionally engaging devices can be improved.