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61. 发明专利

JP2001001787A CONTROLLER OF VEHICLE 失效
公开(公告)号：JP2001001787A
公开(公告)日：2001-01-09
申请号：JP16611199
申请日：1999-06-11
申请人： TOYOTA MOTOR CORP
发明人： TABATA ATSUSHI , ASAHARA NORIKI
IPC分类号： B60K31/00 , B60W30/00 , F02D29/02 , G08G1/16
摘要： PROBLEM TO BE SOLVED: To improve fuel economy and prevent unnecessary control and consumption of power in an automated driving in a vehicle that enables both manned and an automated driving. SOLUTION: This control device is installed in a vehicle which enables both a manned driving with an occupant on board and an automated driving without any occupants and also enables control for the manned driving so as to control physical amount sensed by the occupant with his five senses or vehicle behaviors. This control device is provided with automated driving judgment means (S4) to judge that the vehicle is in the automated driving condition without any occupants. It is also provided with automated driving control discontinuation means (S5) to discontinue the automated driving control when the automated driving judgement means (S4) has judged that the vehicle is in the automated driving condition.

62. 发明专利

JPH1137258A CONTROL DEVICE OF SOLENOID 失效
公开(公告)号：JPH1137258A
公开(公告)日：1999-02-12
申请号：JP21254597
申请日：1997-07-23
申请人： TOYOTA MOTOR CORP
发明人： ASAHARA NORIKI , FUKUMURA KAGENORI , NAKAMURA HIROYA
IPC分类号： F16K31/06 , F16H61/00 , F16H61/686 , G05B11/36 , G05F1/56
摘要： PROBLEM TO BE SOLVED: To make the function for restraining the external disturbance of a solenoid compatible with the function for increasing a follow property by providing a moderate means for moderating a target current value, in a thing by which the solenoid arranged in the oil pressure control circuit of a vehicular automatic transmission is feedback-controlled. SOLUTION: A transistor 49 in the drive control circuit of a solenoid 100 provides a switching function for impressing a battery voltage to a coil 39 only when a duty signal is turned on and a moderating circuit 52 for inputting a target current value in response to the engaging oil pressure of a friction engaging device and a vehicle state. Here, the target current value is moderated based on the vehicle state. The signal of the real current value of the solenoid 100 detected by a current detection circuit 51 is compared with the signal of the moderated target current value at an adding point 53 and a deviation is extracted. This deviation is outputted as a duty signal to the transistor 49 via PID controller 54 and feedback-controlled.

63. 发明专利

JPH10340104A CONTROLLER OF SOLENOID 失效
公开(公告)号：JPH10340104A
公开(公告)日：1998-12-22
申请号：JP16661197
申请日：1997-06-09
申请人： TOYOTA MOTOR CORP
发明人： TABATA ATSUSHI , FUKUMURA KAGENORI , HOJO YASUO , ASAHARA NORIKI , HAMASHIMA TETSUO
IPC分类号： F16K31/06 , G05B11/36 , G05B13/02
摘要： PROBLEM TO BE SOLVED: To make it difficult to vibrate, also to previously set control gain that has high responsiveness in the range and to prevent the occurrence of vibration by providing a means which changes the control gain of feedback in accordance with control condition. SOLUTION: First, control conditions such as throttle opening, oil temperature and kinds of speed changes are read (step 1). Next, control gains such as proportion gain, integration gain and differentiation gain are selected and adopted in accordance with the control conditions (step 2). The feedback control of each linear solenoid valve is executed based on an expression, including the value of each adopted control gain (step 3). In the expression, KP represents proportion gain, K1 represents integration gain, KD represents differentiation gain and (e) represents deviation. Therefore, the coupled vibration of a feedback control system and a hydraulic pressure system is prevented beforehand.

64. 发明专利

JPH07103324A SOLENOID DRIVING CONTROL DEVICE FOR AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH07103324A
公开(公告)日：1995-04-18
申请号：JP25025493
申请日：1993-10-06
申请人： TOYOTA MOTOR CORP
发明人： ASAHARA NORIKI , HOJO YASUO
IPC分类号： F16H61/00 , F16K31/06 , H01F7/18
摘要： PURPOSE:To reconcile vibration resistance and responsiveness of a solenoid by judging whether or not the solenoid is vibrating by detecting an electric current flowing to the solenoid to control oil pressure to be supplied to a frictional engaging device, and driving the solenoid so as to restrain vibration. CONSTITUTION:A linear solenoid to control oil pressure supplied to and discharged from a frictional engaging device of an automatic transmission, moves a plunger slidingly in the shaft direction according to an electric current flowing to a coil 4, and controls a position of a spool. In this case, a resistance 34 is arranged on the earth side of the coil 4 in order to detect the electric current flowing to the coil 4, and detects voltage Vb on the hot side of a transistor 32 and voltage Vio on the hot side of the resistance 34. This voltage Vio is leveled by a ripple removing filter 35, and is inputted to a CPU 30 after being converted into a digital signal by an A/D converter 36. Here, whether or not the solenoid is vibrating is judged, and the solenoid is controlled in driving so as to restrain vibration according to the judged result.

65. 发明专利

JPH0771591A HYDRAULIC CONTROL CIRCUIT OF AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH0771591A
公开(公告)日：1995-03-17
申请号：JP22188993
申请日：1993-09-07
申请人： TOYOTA MOTOR CORP , AISIN AW CO
发明人： ASAHARA NORIKI , FUKUMURA KAGENORI , HOJO YASUO , OZAKI KAZUHISA
IPC分类号： F16H59/46 , F16H61/00 , F16H61/02 , F16H61/04 , F16H61/06 , F16H61/14 , F16H61/686
摘要： PURPOSE:To provide a hydraulic control circuit capable of carrying out slip control of a lock up clutch by a single linear solenoid valve and transient hydraulic control of a frictional engagement means at the time of speed change and shift lever operation and capable of starting the transient hydraulic control while engaging the lock up clutch at the time of up-shift under the lock up clutch engagement condition. CONSTITUTION:A signal hydraulic relay valve 100 the first output port 106 of which is connected to a lock up control valve and a second output port 110 of which is connected to an accumulator control valve is switched over by first relay hydraulic pressure PR1 and second rely hydraulic pressure PR2. Consequently, a valve to be supplied with signal hydraulic pressure Psl governed by a linear solenoid valve 84 is selectively switched over, and at the time of supplying it to the accumulator control valve, modulator hydraulic pressure Pm is supplied to the lock up control valve.

66. 发明专利

JPH0599317A FEEDBACK CONTROL DEVICE FOR AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH0599317A
公开(公告)日：1993-04-20
申请号：JP29058691
申请日：1991-10-09
申请人： TOYOTA MOTOR CORP
发明人： ASAHARA NORIKI , HOJO YASUO , OTSUBO HIDEAKI
IPC分类号： F16H61/06 , F16H59/38 , F16H59/68 , F16H61/00 , F16H61/08 , F16H61/10 , F16H61/70
摘要： PURPOSE:To ensure continuity of action in a hydraulic control system while executing optimum feedback control in the respective parts of a speed change. CONSTITUTION:A progress condition of a speed change is detected to change a control law of feedback control in accordance with the progress condition. Here based on a target value by the control law of feedback control used just before, a target value by the control law of feedback control used from now on is calculated. As a result, continuity of the target value is ensured, and a pressure of oil can be prevented from quick changing in a stepped shape, so that a smooth speed change characteristic can be obtained.

67. 发明专利

JPH04331864A SPEED CHANGE CONTROLLER FOR AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH04331864A
公开(公告)日：1992-11-19
申请号：JP12679291
申请日：1991-04-30
申请人： TOYOTA MOTOR CORP
发明人： IWATSUKI KUNIHIRO , OTSUBO HIDEAKI , ASAHARA NORIKI , HOJO YASUO
IPC分类号： F16H61/08 , F16H59/68 , F16H61/06 , F16H61/10 , F16H61/18
摘要： PURPOSE:To prevent the unnecessary elongation of the whole speed change time, bubbling-up of an engine, increase of speed change shock, etc. CONSTITUTION:In the speed change to the third speed stage from the second speed stage judged in the Step 306, the first transmission part is shifted up and the second transmission part shifts down, and the shift-up speed change as a whole is carried out. As for the brake B0 of the second transmission part, the hydraulic pressure is lowered to the first hydraulic value with which the inertia phase is mat started in the Step 312, and after the start of the inertia phase of the first transmission part is detected, the hydraulic pressure is lowered to the second hydraulic pressure with which the inertia phase is started in the Step 316. Accordingly, the start of the inertia phase of the second transmission part can be carried out at the early time after the detection of the start of the inertia phase of the first transmission part, and the whole of the speed change time can be shortened.

68. 发明专利

JPH04266656A HYDRAULIC DEVICE IN AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH04266656A
公开(公告)日：1992-09-22
申请号：JP4599891
申请日：1991-02-18
申请人： AISIN AW CO , TOYOTA MOTOR CORP
发明人： KITA AKIHIKO , YAMAGUCHI KOZO , HOJO YASUO , ASAHARA NORIKI , IWATSUKI KUNIHIRO , KIMURA HIROMICHI
IPC分类号： F16H61/00 , F16H63/30
摘要： PURPOSE:To prevent a drawing at the time of releasing a direct clutch even in the case of rotating a hydraulic actuator at high speed. CONSTITUTION:A piston member 52 is disposed in the cylinder member 51 of a hydraulic actuator 50 in such a manner as to be capable of sliding. The piston member has a hydraulic chamber 57 on the front surface and a return spring 65 on the back surface. The piston member 52 has a check ball 61 on the outer circumferential side, and a cancel chamber 63 partitioned by a cancel plate 62 on the back surface on the inner circumferential side. When the operating oil pressure of the hydraulic chamber 57 is enhanced, the piston member 52 is retreated to engage a direct clutch C2. Even if the actuator 50 is rotated at high speed, and a large centrifugal oil pressure acts on the oil in the hydraulic chamber 57, the centrifugal oil pressure is reduced and canceled by the check ball 61 and the oil in the cancel chamber 63, and the engagement and disengagement of the clutch C2 by the piston member 52 is ensured.

69. 发明专利

JPH04175566A OIL-HYDRAULIC CONTROL DEVICE FOR MULTI-STEP AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH04175566A
公开(公告)日：1992-06-23
申请号：JP29920790
申请日：1990-11-05
申请人： AISIN AW CO , TOYOTA MOTOR CORP
发明人： ISHIKAWA KAZUNORI , KOBAYASHI YUKIHIRO , IWATSUKI KUNIHIRO , KIMURA HIROMICHI , HOJO YASUO , ASAHARA NORIKI
IPC分类号： F16H61/00 , F16H59/68 , F16H61/04 , F16H61/10
摘要： PURPOSE:To prevent a shift shock from being transmitted to the output side by disengaging a brake for engine braking temporarily when off-up shift and coast-down between two shift positions are performed during running with No.2 engine brake in selection. CONSTITUTION:In case the 1-2 off-up shift is made from the 1st to 2nd gearing position and an overdrive brake B0 of an overdrive planetary gearing unit is engaged, for example when a car is running down a slope in the 2-range condition, or in case coast-down is made from the 2nd to 1st position, the oil with pressure regulated by a linear solenoid valve SLU is supplied to the bottom oil chamber 656 of a low coast modulator valve 65, and thereby a spool 653 is pressed upward to retard feed of the B-3 engagement pressure. Thus a fast and reverse brake B3 is released temporarily to prevent the shift shock due to regripping between the overdrive direct clutch C0 and overdrive brake B0 from being transmitted to the output side.

70. 发明专利

JPH03177655A SPEED CHANGE CONTROL DEVICE FOR AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH03177655A
公开(公告)日：1991-08-01
申请号：JP31700489
申请日：1989-12-06
申请人： TOYOTA MOTOR CORP
发明人： ASAHARA NORIKI , HOJO YASUO , TOMOMATSU HIDEO
IPC分类号： F16H61/02 , F16H59/02 , F16H59/12 , F16H59/18 , F16H59/24 , F16H59/38 , F16H59/44 , F16H59/48 , F16H59/54 , F16H59/68 , F16H59/78 , F16H61/08 , F16H61/10 , F16H61/70 , F16H63/44
摘要： PURPOSE:To attain the desirable synchronization of both transmission parts by performing the feedback control of a first and a second transmission parts taking account of the speed change progress of the other parties mutually in addition to their own speed change progress. CONSTITUTION:The speed change progress detecting means 202, 204 of a first and a second transmission parts 60, 40 detect the drum rotating speed Nc2(k), Nco(k) of the respective clutches so as to obtain deviations ec2(k), eco(k) with the target rotating speed. The control input determining means 206, 208 of the first and second transmission parts 60, 40 then input feedback information on the deviation and control input of the other parties mutually in addition to feedback information on their own deviation ec2(k), eco(k) and control input, and integrate these inputs to determine the control input. The speed change progress of both parties is thus synchronized desirably to reduce the generation of speed change shock.

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