专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2009275858A Controller of automatic transmission 审中-公开
标题翻译：自动变速器控制器
公开(公告)号：JP2009275858A
公开(公告)日：2009-11-26
申请号：JP2008128985
申请日：2008-05-16
申请人： Denso Corp , 株式会社デンソー
发明人： SUZUKI MASARU , SUGIURA MASANORI
IPC分类号： F16H61/14 , F16H59/34 , F16H59/54 , F16H59/74
摘要： PROBLEM TO BE SOLVED: To provide a controller for automatic transmission capable of maintaining an L/U clutch (lock-up clutch) in the zero-slip condition even in case the auxiliary unit load varies during zero-slip control whereby the L/U clutch is controlled with an engaging force as small as possible so that the slip amount becomes approximately zero while the engine fuel is cut.
SOLUTION: Auxiliary unit load correction is executed for correcting the control oil pressure of the L/U clutch in accordance with the auxiliary unit load (the load torque of an alternator and the load torque of a compressor for air-conditioning) when zero-slip control of the L/U clutch is conducted while the engine fuel is cut, and thereby the control oil pressure of the L/U clutch is changed is response to the change of the engaging force for maintaining the L/U clutch in the zero-slip condition in accordance with the auxiliary unit load and the engaging force of the L/U clutch is controlled to the optimum value (an engaging force for maintaining the zero-slip condition). This makes it possible to maintain the L/U clutch in the zero-slip condition even if the auxiliary unit load varies.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：即使在零滑动控制期间辅助单元负载变化的情况下，提供一种能够在零滑动状态下保持L / U离合器（锁止离合器）的自动变速器的控制器，由此， L / U离合器以尽可能小的接合力进行控制，使得在发动机燃料切断时滑移量变为近似为零。
解决方案：执行辅助单元负载校正，以根据辅助单元负载（交流发电机的负载转矩和空调压缩机的负载转矩）来校正L / U离合器的控制油压，当时在发动机燃料被切断的同时进行L / U离合器的零滑差控制，由此L / U离合器的控制油压改变是响应于用于保持L / U离合器的接合力的变化根据辅助单元负载的零滑动状态和L / U离合器的接合力被控制到最佳值（用于保持零滑动状态的接合力）。这使得即使辅助单元负载变化，也可以将L / U离合器保持在零滑动状态。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2010071297A Vehicle control device 审中-公开
标题翻译：车辆控制装置
公开(公告)号：JP2010071297A
公开(公告)日：2010-04-02
申请号：JP2008235864
申请日：2008-09-16
申请人： Denso Corp , 株式会社デンソー
发明人： SUGIURA MASANORI , SUZUKI MASARU
IPC分类号： F16H61/02 , F02D41/12 , F16H59/34 , F16H59/40 , F16H59/42 , F16H59/44 , F16H59/48 , F16H59/70 , F16H61/14 , F16H61/16
摘要： PROBLEM TO BE SOLVED: To provide a vehicle control device which realizes a further improvement in fuel consumption by increasing the fuel cut period.
SOLUTION: The control device is applied to a vehicle equipped with a torque converter for transmitting power between a crankshaft (the output shaft of an internal combustion engine) and the output shaft of an automatic transmission. When rotational speed NE of the crankshaft (rotary member) is standard rotational speed, the control device includes a fuel cut control means for stopping the injection of fuel when the vehicle runs through inertia and when the standard rotational speed is higher than that of fuel cut threshold value TH, a shift down control means for shifting down the transmission gear as the standard rotational speed decreases to temporarily increase the standard rotational speed while the fuel injection is stopped by the fuel cut control means, and a command timing control means for controlling the command timing of the shift down so that the minimum value of the standard rotational speed (lower prediction limit rotational speed NEL) is higher than the fuel cut threshold value TH until it starts to increase temporarily since the shift down is commanded.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种车辆控制装置，其通过增加燃料切断周期来实现燃料消耗的进一步改善。解决方案：控制装置应用于配备有用于在曲轴（内燃机的输出轴）和自动变速器的输出轴之间传递动力的变矩器的车辆。当曲轴（旋转构件）的转速NE为标准转速时，控制装置包括燃料切断控制装置，用于当车辆通过惯性行驶时停止燃料喷射，并且当标准转速高于燃料切断时阈值TH;减速控制装置，用于当标准转速降低时使变速档减速，同时通过燃料切断控制装置停止燃料喷射时临时提高标准转速;以及指令定时控制装置，用于控制从而降低标准旋转速度（下限预测极限转速NEL）的最小值比燃料切断阈值TH高，直到自从下降命令开始临时增加为止。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2010025071A Control device of internal combustion engine 审中-公开
标题翻译：内燃机控制装置
公开(公告)号：JP2010025071A
公开(公告)日：2010-02-04
申请号：JP2008190469
申请日：2008-07-24
申请人： Denso Corp , 株式会社デンソー
发明人： SUGIURA MASANORI , SUZUKI MASARU
IPC分类号： F02D41/12 , F02D41/04 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To prevent a fuel cut by unconscious accelerator operation of a driver.
SOLUTION: An ECU 21 detects present accelerator opening, and calculates accelerator opening becoming a constant vehicle speed travel state based on a shift stage of an automatic transmission 11, a road surface gradient and a vehicle speed, and determines whether the vehicle speed is a substantially constant speed travel state of substantially constant or an unconstant speed travel state being not substantially constant in a vehicle speed, by comparing the present accelerator opening with the accelerator opening of becoming the constant vehicle speed travel state. The fuel cut is prohibited by determining as being switched to the unconstant speed travel state by the unconscious accelerator opening of the driver until a predetermined time passes after its determining result is switched to the unconstant speed travel state from the substantially constant speed travel state. Thus, the fuel cut is not performed even when a speed reduction time fuel cut performing condition is realized when switched to a speed reduction travel state from the substantially constant speed travel state by the unconscious accelerator operation of the driver in substantially constant speed travel.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了防止由驾驶员的无意识加速器操作导致的燃料切断。解决方案：ECU21检测当前的加速器开度，并且基于自动变速器11的换档级，路面坡度和车速来计算加速器开度变为恒定的车速行驶状态，并且确定车速通过将当前的加速器开度与作为恒定车速行驶状态的加速器开度进行比较，基本上恒定的速度行驶状态基本上恒定或不恒定的速度行驶状态在车速上基本上不变。通过由驱动器的无意识的加速器开度确定为切换到不恒定速度行驶状态，直到其确定结果从基本上恒定的速度行驶状态切换到不恒定速度行驶状态直到经过预定时间为止，禁止燃料切断。因此，即使当以基本上恒定的速度行驶通过驾驶员的无意识加速器操作从基本恒定的行驶状态切换到减速行驶状态时，即使实现减速时间燃料切断执行状态，也不执行燃料切断。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2006234122A Controller of automatic transmission 审中-公开
标题翻译：自动变速器控制器
公开(公告)号：JP2006234122A
公开(公告)日：2006-09-07
申请号：JP2005052264
申请日：2005-02-28
申请人： Denso Corp , 株式会社デンソー
发明人： SUZUKI MASARU
IPC分类号： F16H61/02 , F16H59/68 , F16H61/686
CPC分类号： F16H61/0437 , F16H59/68 , F16H61/686 , F16H2061/0444 , F16H2306/14 , F16H2306/24
摘要： PROBLEM TO BE SOLVED: To perform multiple gear shifts with good response while preventing gear shift shock from occurring by the multiple gear shifts. SOLUTION: A method for shifting to a third shift stage according to the engagement pattern of each frictional engagement element in the steady state of the third shift stage is changed when a request for shifting to the third shift stage occurs during a shifting from a first shift stage to a second shift stage. For example, if a frictional engagement element for continuing the engagement or release of the engagement of the engagement pattern of the third shift stage with the engagement pattern of the second shift stage is present (or if a request for shifting to a third shift stage during 5 to 4 shift operation or a request for shifting to a second shift stage during 4 to 3 shift operation), the engagement or released of the engagement of the frictional engagement element is controllably continued, and a shift stage is transferred from the second shift stage to the third shift stage by starting the engagement or disengagement control for the other frictional engagement element with varying engagement or release state so as to cope with the engagement pattern of the third shift stage. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了进行多个换档，响应良好，同时防止由多个档位发生的换档冲击。解决方案：当在第三变速级的稳定状态期间，当转换到第三变速级的请求发生时，改变根据在第三变速级的稳定状态下的每个摩擦接合元件的接合模式移动到第三变速级的方法第一班班到第二班班。例如，如果存在用于继续接合或释放第三变速级的接合模式与第二变速级的接合模式的摩擦接合元件（或者如果在第三变速级期间转移到第三变速级的请求 5至4班班或4至3班班期期间换班至第2班次的请求），可控制地接合或释放摩擦接合元件的接合，并且从第二变速级通过开始对具有变化的接合或释放状态的另一个摩擦接合元件的接合或分离控制，以便应对第三变速级的接合模式，到第三变速级。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JPH10141486A CONTROL DEVICE FOR AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH10141486A
公开(公告)日：1998-05-29
申请号：JP30020196
申请日：1996-11-12
申请人： DENSO CORP
发明人： TAKAGI AKIRA , SUZUKI MASARU , NAKATANI KAZUSHI
IPC分类号： F16H61/06
摘要： PROBLEM TO BE SOLVED: To obtain charging time easily by constructing an equation of motion of a hydraulic piston for driving a friction engaging element, and detecting only parameters for the temperature of an operating fluid and the like to compute. SOLUTION: A viscosity coefficient, a damping coefficient and a constant previously computed from oil temperature are substituted for each parameter of an equation 2, and charging time ts is computed from an expression 1. In the expression 1, Vp is the increase capacity of a piston chamber at the time of a clutch piston being displaced to the maximum from a reference position in a released state onto the engaging side, Qp is the unit time quantity of operating oil fed to a piston chamber. In the equation 2, Ap is the pressure receiving area of the clutch piston, L is the total choke length in a piston housing, (d) is a choke diameter, ρ is operating oil density, dc is an orifice diameter in the piston housing, Fset is the set load of a return spring, C is a flow coefficient, μis a viscosity coefficient, ΔXp is the maximum displacement quantity of the clutch piston, Cp is a damping coefficient, and P1 is control pressure. The equation is common even though an engine is different, and appropriate charging time can be computed.

6. 发明专利

JPH09236172A OIL PRESSURE CONTROL DEVICE AND AUTOMATIC TRANSMISSION USING THE DEVICE 失效
公开(公告)号：JPH09236172A
公开(公告)日：1997-09-09
申请号：JP4383696
申请日：1996-02-29
申请人： DENSO CORP
发明人： OZAKI TETSUJI , SUZUKI MASARU
IPC分类号： F16H61/06
摘要： PROBLEM TO BE SOLVED: To reduce the fluctuation of oil pressure control characteristics due to the fluctuation of the coil current of a line pressure control solenoid arranged at a hydraulic circuit. SOLUTION: During gear shifting, the initial pressure Pi of a line pressure is first calculated at S240. Secondly, a drive duty D to maintain the initial pressure is calculated at S250. Based on a source voltage V and an oil temperature T, the drive duty is decreased for correction when a source voltage exceeds a reference value and reversely, when it is below the reference value, the drive duty is increased for correction. When temperature exceeds a reference value, the drive duty is increased for correction and reversely, when it is below the reference value, the drive duty is decreased for correct at S260. At other time than gear shift, processing in a similar manner described above is effected and a duty D for controlling a line pressure is corrected based on the source voltage V and the oil temperature T at S310-S330.

7. 发明专利

JPH1194057A SHIFT CONTROLLER OF AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH1194057A
公开(公告)日：1999-04-09
申请号：JP25888297
申请日：1997-09-24
申请人： DENSO CORP
发明人： TAKAGI AKIRA , NAKATANI KAZUSHI , SUZUKI MASARU
IPC分类号： B60W10/04 , B60W10/10 , F02D29/00 , F16H59/14 , F16H63/50 , B60K41/04
摘要： PROBLEM TO BE SOLVED: To estimate turbine torque at high precision not only at a steady operating state of an engine but also at a transient state. SOLUTION: Whether the operating state of an engine 1 is the steady state or the transient state is judged on the basis of the time displacement of pressure of intake manifolds 5. When the operating state is steady, turbine torque is estimated on the basis of the torque amplifying ratio of a torque converter 41, the torque capacity coefficient and the engine speed. While, when the operating state is transient, the intake air amount is calculated on the basis of the engine speed, pressure of the intake manifolds 5 and the intake air temperature, internal generation torque of the engine 1 is estimated on the basis of the intake air amount, inertia torque of the engine 1 itself, internal loss torque of the engine 1 and torque required for drive of engine accessories are subtracted from the internal generation torque, delay time correction is performed to determine external output torque of the engine 1, and turbine torque is estimated on the basis of the external output torque and the torque amplifying ratio.

8. 发明专利

JPH10141484A CONTROLLER FOR AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH10141484A
公开(公告)日：1998-05-29
申请号：JP30020096
申请日：1996-11-12
申请人： DENSO CORP
发明人： TAKAGI AKIRA , SUZUKI MASARU , NAKATANI KAZUSHI
IPC分类号： F16H61/02
摘要： PROBLEM TO BE SOLVED: To provide a controller for automatic transmission which controls shift with high precision even when a value of line pressure fluctuates. SOLUTION: When a clutch plate 1 and a bulkhead plate 2 are transferred from a release condition to an engagement condition, line pressure as original pressure may be reduced by filling hydraulic oil into a piston chamber 5 rapidly when a hydraulic pump 20 rotates at low speed. By detecting the number of revolutions of the hydraulic pump 20 and calculating line pressure which is reduced based on the number of revolutions thereof and a flow rate of consumption hydraulic oil which is filled in the piston chamber 5, it is possible to control shift with high precision in accordance with line pressure which is reduced.

9. 发明专利

JP2002130465A SLIP CONTROL DEVICE FOR FLUID POWER TRANSMISSION DEVICE WITH LOCKUP CLUTCH 失效
公开(公告)号：JP2002130465A
公开(公告)日：2002-05-09
申请号：JP2000334943
申请日：2000-10-30
申请人： DENSO CORP
发明人： SUZUKI MASARU , OZAKI TETSUJI
IPC分类号： F16H61/14
摘要： PROBLEM TO BE SOLVED: To improve a control characteristic to a fluctuation in a temporary slip quantity of a torque converter. SOLUTION: An electronic control unit 33 judges whether or not a fluctuation in a slip quantity by a factor except for a change in a hydraulic pressure command value is caused in a prescribed period in slip quantity feedback control, and stops the slip quantity feedback control for a prescribed time when detecting the fluctuation in the slip quantity, and holds the hydraulic pressure command value in a hydraulic pressure command value just before stopping the feedback control, and holds a lockup clutch 19 in a slip control state. When stopping time of this slip quantity feedback control reaches the prescribed time, the slip quantity feedback control is resumed. Thus, even when a vehicle passes through a joint and a level difference of a road surface, stable slip control can be performed.

10. 发明专利

JPH11336887A CONTROL DEVICE AND RECORDING MEDIUM FOR AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH11336887A
公开(公告)日：1999-12-07
申请号：JP14334198
申请日：1998-05-25
申请人： DENSO CORP
发明人： OZAKI TETSUJI , SUZUKI MASARU
IPC分类号： F16H61/04
摘要： PROBLEM TO BE SOLVED: To provide a control device for an automatic transmission, which actualizes an change in gripping for friction engaging elements capable of correcting the dispersion of characteristics for a hydraulic system, and errors in operations, preventing the occurrence of shift shock, and delay in shifting, and preventing the characteristics of friction engaging elements from being degraded. SOLUTION: The torque of an input shaft is estimated based on the characteristics of an engine or the characteristics of a torque converter and the like (S101), gradual reduction control is executed (S105), in which the hydraulic pressure of a clutch at the releasing side is gradually dropped down from the initial hydraulic pressure set up by a step (S104) at a specified gradient set in advance. By this constitution, the eruption of engine revolutions is started so as allow the number Nt of input shaft revolutions to be increase. The eruption of the number Nt of input shaft revolutions is thereby detected (S106). A factor K1 indicating the characteristics of the clutch at the releasing side is computed based on a following formula (S108). That is, K1=A 1*PCL1/Tin, where A1 represents the characteristic value of the clutch at the releasing side, PCL1 represents the hydraulic command value of the clutch at the releasing side, and Tin represents the estimated value of the torque of an input shaft).

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式