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1. 发明授权

US06526930B2 Valve timing control system for internal combustion engine 失效
公开(公告)号：US06526930B2
公开(公告)日：2003-03-04
申请号：US09982931
申请日：2001-10-22
申请人： Tatsuhiko Takahashi , Morio Fujiwara
发明人： Tatsuhiko Takahashi , Morio Fujiwara
IPC分类号： F01L134
CPC分类号： F01L1/3442 , F01L1/34 , F01L2001/34426
摘要： A valve timing control system for an internal combustion engine for preventing dispersion of a control amount and unexpected release of a lock pin is provided. The valve timing control system is provided with actuators 15 and 16 connected to cam shafts 15C and 16C, hydraulic pressure supply units 19 and 20 for driving the actuators, and a controller 21A for controlling a hydraulic pressure for the actuators in dependence on engine operation states while changing a relative phase of the cam shafts relative to crank shafts. The actuator includes a locking mechanism for setting the relative phase to a lock-up position, and an unlocking mechanism for releasing the locking mechanism in response to a predetermined hydraulic pressure. The controller makes a limit of control range small when the controller drives the locking mechanism to control the relative phase within a predetermined range of the lock-up position.

2. 发明授权

US06301543B2 Control system for internal combustion engine 有权
标题翻译：内燃机控制系统
公开(公告)号：US06301543B2
公开(公告)日：2001-10-09
申请号：US09739831
申请日：2000-12-20
申请人： Morio Fujiwara , Atsuko Hashimoto , Tatsuhiko Takahashi , Satoshi Wachi
发明人： Morio Fujiwara , Atsuko Hashimoto , Tatsuhiko Takahashi , Satoshi Wachi
IPC分类号： F01L134
CPC分类号： F02D13/0215 , F01L1/34 , F01L2001/34436 , F01L2001/34443 , F01L2201/00 , F01L2800/12 , F02D13/0261 , F02D41/22 , F02D41/221 , F02D41/266 , F02D2041/001 , Y02T10/18
摘要： A control system for an internal combustion engine which can judge and detect a failure of a valve, timing changing unit regardless of operating conditions. The system includes a second storage unit 9 for storing the detection value of an actual valve timing detection unit 2 when the target advance angle set by a target advance angle setting device 3 is a predetermined value and updating the storage value, a storage value update inhibiting unit 10 for inhibiting the update of the storage value of the second storage unit when a change in the storage value updated by a first storage unit 4 is larger than a predetermined value, and failure judging unit 8A for judging a failure of the valve timing changing unit based on the target advance angle set, the detection value of the actual valve timing detection unit and the storage value of the second storage unit.
摘要翻译：一种用于内燃机的控制系统，其可以判断和检测阀的故障，定时改变单元，而不管操作条件如何。该系统包括第二存储单元9，用于当由目标提前角设置装置3设置的目标提前角为预定值并且存储值更新时，存储实际气门正时检测单元2的检测值，当由第一存储单元4更新的存储值的改变大于预定值时，用于禁止更新第二存储单元的存储值的单元10以及用于判断气门正时变化的故障的故障判断单元8A 基于目标提前角设定的单位，实际气门正时检测单元的检测值和第二存储单元的存储值。

3. 发明授权

US06266606B1 Control system for internal combustion engine 有权
公开(公告)号：US06266606B1
公开(公告)日：2001-07-24
申请号：US09739837
申请日：2000-12-20
申请人： Morio Fujiwara , Atsuko Hashimoto , Tatsuhiko Takahashi , Satoshi Wachi
发明人： Morio Fujiwara , Atsuko Hashimoto , Tatsuhiko Takahashi , Satoshi Wachi
IPC分类号： F01L134
CPC分类号： F02D13/0215 , F01L1/34 , F01L2001/34436 , F01L2001/34443 , F01L2201/00 , F01L2800/12 , F02D13/0261 , F02D41/22 , F02D41/221 , F02D41/266 , F02D2041/001 , Y02T10/18
摘要： A control system for an internal combustion engine which can judge and detect a failure of a valve timing changing unit regardless of operating conditions. The system includes a second storage unit 9 for storing the detection value of an actual valve timing detection unit 2 when the target advance angle set by a target advance angle setting device 3 is a predetermined value and updating the storage value, a storage value update inhibiting unit 10 for inhibiting the update of the storage value of the second storage unit when a change in the storage value updated by a first storage unit 4 is larger than a predetermined value, and failure judging unit 8A for judging a failure of the valve timing changing unit based on the target advance angle set, the detection value of the actual valve timing detection unit and the storage value of the second storage unit.

4. 发明授权

US06516759B2 Valve timing control apparatus for internal combustion engine 有权
公开(公告)号：US06516759B2
公开(公告)日：2003-02-11
申请号：US09887171
申请日：2001-06-25
申请人： Tatsuhiko Takahashi , Morio Fujiwara
发明人： Tatsuhiko Takahashi , Morio Fujiwara
IPC分类号： F01L134
CPC分类号： F01L1/34 , F01L1/3442 , F01L2800/00
摘要： A valve timing control apparatus for an internal combustion engine is capable of ensuring good response within a control range, stability outside the control range, and durability without increasing the capacity of electric power for a drive circuit and an OCV coil. The valve timing control apparatus includes an intake vale 31, an exhaust valve 32, an engine operating condition detecting section (3, 11, 14), a target valve timing calculating section 21, variable valve timing mechanisms 15, 16, an actual valve timing detecting section (14, 17, 18), a control amount calculating section 21 for calculating a control amount based on target valve timing, actual valve timing and engine operating conditions, and an actual valve timing control section (19, 20) for outputting the control amount as an output control amount to the variable valve timing mechanisms. When the target valve timing is outside a prescribed control range, the control amount calculated by the control amount calculating section 21 is not made as an output control amount supplied to the actual valve timing control section (19, 20).

5. 发明授权

US06263275B1 Control system for internal combustion engine 有权
公开(公告)号：US06263275B1
公开(公告)日：2001-07-17
申请号：US09739838
申请日：2000-12-20
申请人： Morio Fujiwara , Atsuko Hashimoto , Tatsuhiko Takahashi , Satoshi Wachi
发明人： Morio Fujiwara , Atsuko Hashimoto , Tatsuhiko Takahashi , Satoshi Wachi
IPC分类号： F01L134
CPC分类号： F02D13/0215 , F01L1/34 , F01L2001/34436 , F01L2001/34443 , F01L2201/00 , F01L2800/12 , F02D13/0261 , F02D41/22 , F02D41/221 , F02D41/266 , F02D2041/001 , Y02T10/18
摘要： A control system for an internal combustion engine which can judge and detect a failure of a valve timing changing unit regardless of operating conditions. The system includes a second storage unit 9 for storing the detection value of an actual valve timing detection unit 2 when the target advance angle set by a target advance angle setting device 3 is a predetermined value and updating the storage value, a storage value update inhibiting unit 10 for inhibiting the update of the storage value of the second storage unit when a change in the storage value updated by a first storage unit 4 is larger than a predetermined value, and failure judging unit 8A for judging a failure of the valve timing changing unit based on the target advance angle set, the detection value of the actual valve timing detection unit and the storage value of the second storage unit.

6. 发明授权

US06240359B1 Control system for internal combustion engine 有权
标题翻译：内燃机控制系统
公开(公告)号：US06240359B1
公开(公告)日：2001-05-29
申请号：US09416946
申请日：1999-10-13
申请人： Morio Fujiwara , Atsuko Hashimoto , Tatsuhiko Takahashi , Satoshi Wachi
发明人： Morio Fujiwara , Atsuko Hashimoto , Tatsuhiko Takahashi , Satoshi Wachi
IPC分类号： F01L134
CPC分类号： F02D13/0215 , F01L1/34 , F01L2001/34436 , F01L2001/34443 , F01L2201/00 , F01L2800/12 , F02D13/0261 , F02D41/22 , F02D41/221 , F02D41/266 , F02D2041/001 , Y02T10/18
摘要： A control system for an internal combustion engine which can judge and detect a failure of a valve timing changing unit regardless of operating conditions. The system includes a second storage unit 9 for storing the detection value of an actual valve timing detection unit 2 when the target advance angle set by a target advance angle setting device 3 is a predetermined value and updating the storage value, a storage value update inhibiting unit 10 for inhibiting the update of the storage value of the second storage unit when a change in the storage value updated by a first storage unit 4 is larger than a predetermined value, and failure judging unit 8A for judging a failure of the valve timing changing unit based on the target advance angle set, the detection value of the actual valve timing detection unit and the storage value of the second storage unit.
摘要翻译：一种用于内燃机的控制系统，其可以判断和检测气门正时改变单元的故障，而与操作条件无关。该系统包括第二存储单元9，用于当由目标提前角设置装置3设置的目标提前角为预定值并且存储值更新时，存储实际气门正时检测单元2的检测值，当由第一存储单元4更新的存储值的改变大于预定值时，用于禁止更新第二存储单元的存储值的单元10以及用于判断气门正时变化的故障的故障判断单元8A 基于目标提前角设定的单位，实际气门正时检测单元的检测值和第二存储单元的存储值。

7. 发明授权

US06802286B2 Valve timing control system for an internal combustion engine 失效
标题翻译：内燃机气门正时控制系统
公开(公告)号：US06802286B2
公开(公告)日：2004-10-12
申请号：US10421871
申请日：2003-04-24
申请人： Morio Fujiwara , Tatsuhiko Takahashi , Koji Wada
发明人： Morio Fujiwara , Tatsuhiko Takahashi , Koji Wada
IPC分类号： F01L134
CPC分类号： F01L1/34 , F01L1/3442 , F01L2001/34469 , F02D2041/001 , F02D2200/023
摘要： The valve timing control system of the present invention comprises an actuator for changing an actual valve timing of an intake valve or an exhaust valve; an oil pressure adjusting unit for supplying operating oil to the actuator, and adjusting the oil pressure thereof; an actual valve timing control unit for controlling the actuator by controlling the oil pressure adjusting unit, so that the actual valve timing follows up a target value; and an oil temperature estimation unit for estimating the temperature of the operating oil, according to an operating state of the internal combustion engine from a previous operation, and according to its current operating state. Based on the estimated oil temperature, the actual valve timing control unit switches a control amount for controlling the oil pressure adjusting unit.
摘要翻译：本发明的气门正时控制系统包括用于改变进气门或排气门的实际气门正时的致动器; 油压调节单元，用于向致动器供给工作油，并调节其油压; 实际气门正时控制单元，用于通过控制油压调节单元来控制致动器，使得实际气门正时跟随目标值; 以及油温估计单元，用于根据前一操作的内燃机的运转状态，根据其当前的运行状态来推定运转油的温度。基于估计的油温，实际气门正时控制单元切换用于控制油压调节单元的控制量。

8. 发明授权

US06561147B2 Valve timing control system for internal combustion engine 失效
公开(公告)号：US06561147B2
公开(公告)日：2003-05-13
申请号：US09983285
申请日：2001-10-23
申请人： Tatsuhiko Takahashi , Morio Fujiwara
发明人： Tatsuhiko Takahashi , Morio Fujiwara
IPC分类号： F01L0134
CPC分类号： F01L1/3442 , F01L2001/0537 , F01L2001/34426 , F01L2001/34473 , F01L2800/00 , F01L2820/01
摘要： A valve timing control system for an internal combustion engine for preventing hitching of a lock pin of an actuator at the time of changing a cam angle is provided. The valve timing control system is provided with actuators 15 and 16 connected to cam shafts 15C and 16C, hydraulic pressure supply units 19 and 20 for driving the actuators, and a controller 21A for controlling a hydraulic pressure for the actuators in dependence on engine operation states while changing a relative phase of the cam shafts relative to crank shafts. The actuator includes a locking mechanism for setting the relative phase to a lock-up position, and an unlocking mechanism for releasing the locking mechanism in response to a predetermined hydraulic pressure. The controller executes a releasing operation of the locking mechanism if the lock-up position in the locking mechanism changes from inside a predetermined range to outside the predetermined range.

9. 发明授权

US06520131B2 Valve timing control system for internal combustion engine 失效
公开(公告)号：US06520131B2
公开(公告)日：2003-02-18
申请号：US09912361
申请日：2001-07-26
申请人： Tatsuhiko Takahashi , Morio Fujiwara , Koji Wada
发明人： Tatsuhiko Takahashi , Morio Fujiwara , Koji Wada
IPC分类号： F01L134
CPC分类号： F02D13/0219 , F01L1/34 , F01L1/3442 , F01L2001/34426 , F01L2800/00 , Y02T10/18
摘要： A valve timing control system for accelerating activation of a catalytic converter in an internal combustion engine in a cold starting operation mode while enhancing control accuracy by learning a reference position of a cam angle. The system includes actuators (15; 16) coupled to cam shafts (15C; 16C), respectively, hydraulic pressure supply means (19; 20) for driving the actuators (15; 16), and a controller (21A) for controlling hydraulic pressure fed to the actuators (15; 16) in dependence on engine operation states to change phases of the cam shafts (15C; 16C) relative to a crank shaft (13C). The controller (21A) is so designed as to set a valve timing to a most advanced position or alternatively to a most retarded position in a cold-state idling operation mode for the purpose of learning a reference position.

10. 发明授权

US06513468B2 Valve timing control system for internal combustion engine 失效
标题翻译：内燃机气门正时控制系统
公开(公告)号：US06513468B2
公开(公告)日：2003-02-04
申请号：US09982932
申请日：2001-10-22
申请人： Tatsuhiko Takahashi , Morio Fujiwara
发明人： Tatsuhiko Takahashi , Morio Fujiwara
IPC分类号： F01L134
CPC分类号： F01L1/3442 , F01L1/34 , F01L2001/34426 , F01L2820/02 , Y10T74/2101
摘要： A valve timing control system for an internal combustion engine for preventing dispersion of a control amount and unexpected unlocking of a lock pin is provided. The valve timing control system is provided with actuators 15 and 16 connected to cam shafts 15C and 16C, hydraulic pressure supply units 19 and 20 for driving the actuators, and a controller 21A for controlling a hydraulic pressure for the actuators depending on operating states while changing a relative phase of the cam shafts relative to crank shafts. The actuator includes a locking mechanism for setting the relative phase to a lock-up position and unlocking mechanisms for unlocking the locking mechanism in response to a predetermined hydraulic pressure, and the controller restricts a control of valve timing within a predetermined range of said lock-up position in the locking mechanism.
摘要翻译：提供了一种用于防止控制量的分散和锁定销意外解锁的用于内燃机的气门正时控制系统。气门正时控制系统设有连接到凸轮轴15C和16C的致动器15和16，用于驱动致动器的液压供应单元19和20，以及用于根据操作状态控制致动器的液压的控制器21A，同时改变凸轮轴相对于曲轴的相对相位。致动器包括用于将相对相位设定到锁定位置的锁定机构和用于响应于预定液压压力解锁锁定机构的解锁机构，并且所述控制器限制在所述锁定位置的预定范围内的气门正时的控制，在锁定机构中的上升位置。

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