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61. 发明专利

JPH06284510A FORWARD AND BACKWARD MOTION CONTROLLER FOR ELECTRIC VEHICLE 失效
公开(公告)号：JPH06284510A
公开(公告)日：1994-10-07
申请号：JP9527693
申请日：1993-03-29
申请人： TOYOTA MOTOR CORP
发明人： YOSHII KINYA , KOIDE TAKEJI , ICHIOKA EIJI , TANAKA KOICHI , KURAMOCHI KOJIRO
IPC分类号： B60L3/00 , B60L9/18
摘要： PURPOSE:To prevent the sudden behavioral change and trouble of a car at a time when the selective range of a shift lever and the progressive direction of the car differ. CONSTITUTION:When a car is not brought to the state of a forward motion and car speed (car speed in the backward motion direction) V is larger than judgement car speed V1 even when a shift lever is operated to a D range, normal forward and backward motion control corresponding to a selective range is inhibited by bringing a flag F1 to '1' in S1-5 while an electric motor is regeneratively braked in S1-6. When the car is not brought to the state of a backward motion and car speed car speed in the forward motion direction) V is larger than judgement car speed V2 even when the shift lever is operated to an R range, the normal forward and backward motion control is prohibited similarly and the electric motor is regeneratively braked.

62. 发明专利

JPH06276607A DRIVE FORCE CONTROLLER FOR ELECTRIC MOTOR VEHICLE 失效
公开(公告)号：JPH06276607A
公开(公告)日：1994-09-30
申请号：JP8403293
申请日：1993-03-18
申请人： TOYOTA MOTOR CORP
发明人： TANAKA KOICHI , KOIDE TAKEJI , YOSHII KINYA , ICHIOKA EIJI , KURAMOCHI KOJIRO
IPC分类号： B60L7/14 , B60L9/18
摘要： PURPOSE:To facilitate a driving operation in the case of traveling in a non- traveling range such as an N (neutral) or P (parking) range. CONSTITUTION:When a shift lever is operated to an N range and a vehicle speed V exceeds a set vehicle speed V1 corresponding to a maximum speed of an electric motor on a descent, etc., during inertia traveling in which an output of the motor is '0' to be freely rotated, the motor is regeneratively braked to decelerate the speed V to V1 or less without necessity of a driver's braking operation.

63. 发明专利

JPH06261416A DRIVING POWER CONTROLLER FOR ELECTRIC AUTOMOBILE 失效
公开(公告)号：JPH06261416A
公开(公告)日：1994-09-16
申请号：JP7114393
申请日：1993-03-05
申请人： TOYOTA MOTOR CORP
发明人： YOSHII KINYA , KOIDE TAKEJI , ICHIOKA EIJI , TANAKA KOICHI , KURAMOCHI KOJIRO
IPC分类号： B60L9/18 , B23Q1/76 , B60L15/20
摘要： PURPOSE:To allow constant production of an appropriate creep torque regardless of individual difference or drift of vehicle, and difference in the operating conditions, e.g. gradient of pavement or vehicle weight. CONSTITUTION:When creep control executing conditions, e.g. brake ON, are satisfied, a basic creep control amount K and a learning control amount kg are read in based on the brake power, inclination angle of vehicle (gradient of pavement), and the vehicle weight at steps SC1-SC3 and creep torque control of a motor is carried out at step SC8 with a target torque To=K+kg. During the control operation, a decision is made at steps SC9, SC11 whether the vehicle speed V is zero or not. When the vehicle speed V is not zero, the learning control amount kg is regulated at steps SC10, SC12 thus regulating the target torque To during next control cycle.

64. 发明专利

JPH05338470A 失效
公开(公告)号：JPH05338470A
公开(公告)日：1993-12-21
申请号：JP17388092
申请日：1992-06-08
申请人： TOYOTA MOTOR CORP
发明人： NAKAWAKI YASUNORI , KURAMOCHI KOJIRO , HIGASHIYAMA YASUHIKO
IPC分类号： B60W10/04 , B60W10/06 , B60W10/10 , F02D13/02 , F02D29/00 , F02D41/04 , F16H61/02 , F16H61/08 , F16H61/10 , F16H61/18 , F16H61/21 , F16H63/44 , F16H63/50 , B60K41/04
摘要： PURPOSE:To realize proper down shift at the time of downshift by commencing output increase control after the changeover of a hydraulic circuit after the elapse of a predetermined time so that an engine rotary speed may rise during a time that is till the next low speed step side is completely engaged after the slip start of the high speed step side of a friction engaging device. CONSTITUTION:A transmission control computer 34 deflects the speed shift steps of an automatic transmission 78 by means of a hydraulic control circuit 150 through solenoids S1-S3, and inputs the shift range signal SR of a neutral start switch 84, and in addition, inputs signals showing the operation states of rotary speed sensors 80, 82, a hydraulic sensor 86, a throttle position sensor 36 or the like, and commences the output increase control of an engine 10 after the changeover of the hydraulic control circuit 150 after a predetermined time has elapsed from a measuring start time point fixed by means of the changeover time of the hydraulic control circuit 150. Accordingly, an engine rotation number can be raised during a time that is between the release and engagement of the friction engagement of shift down, and a speed shift time is shortened without speed shift shock, and proper engine output increase control can be conducted.

65. 发明专利

JPH05332401A ELECTRIC AUTOMOBILE REDUCTION GEAR 失效
公开(公告)号：JPH05332401A
公开(公告)日：1993-12-14
申请号：JP16023592
申请日：1992-05-27
申请人： TOYOTA MOTOR CORP
发明人： TANAKA KOICHI , KURAMOCHI KOJIRO , KOIDE TAKEJI
IPC分类号： B60K17/08 , F16H1/28 , F16H48/10 , F16H48/11 , F16H48/38 , F16H57/023 , F16H57/02
摘要： PURPOSE:To provide a single-shaft type electric automobile reduction gear whose axial direction size can be shortened. CONSTITUTION:Since the pinion gear shaft 48 of a planetary gear type differential gear 18 is directly supported by the outer race 50L of a left side first uniform speed joint, a conventional carrier for supporting the pinion gear shaft 48 is no more necessary, thereby, the outer race 50L serves also as the carrier for supporting the pinion gear shaft 48. Accordingly, in the conventional automatic automobile reduction gear, the spline fitting between a boss on the carrier and a connecting shaft of the uniform speed joint is not needed, so that the axial direction size WL can be shortened to an extent where the carrier and the connecting shaft have occupied conventionally, and the loading capacity of vehicles can be improved.

66. 发明专利

JPH05248538A 失效
公开(公告)号：JPH05248538A
公开(公告)日：1993-09-24
申请号：JP8624392
申请日：1992-03-10
申请人： TOYOTA MOTOR CORP
发明人： MORI MIKIO , KURAMOCHI KOJIRO , KITAMURA NORIHIRO , YASUDA YUJI
IPC分类号： F16D49/12 , F16H63/30
摘要： PURPOSE:To prevent the axis of a brake drum from inclining with respect to the axial center of an automatic transmission, and ensure an automatic transmission to have a small diameter. CONSTITUTION:This brake device for an automatic transmission is so constituted that a brake drum 16 is laid in such a way as adjacent to an oil pump and along the same axial line thereof, and a brake band 22 is fitted around the external surface of the brake drum 16. In this case, the oil pump has a pump cover 10 with a boss section 13 axially projected from the center, and a projected input shaft 15 is provided at the forward end of the boss section 13. Also, the brake drum 16 is coupled to the input shaft 15 in such a way as relatively rotatable, and supported thereon.

67. 发明专利

JPH04321866A ABNORMAL SOUND REDUCING DEVICE OF TRANSMISSION FOR VEHICLE 失效
公开(公告)号：JPH04321866A
公开(公告)日：1992-11-11
申请号：JP11244091
申请日：1991-04-17
申请人： TOYOTA MOTOR CORP
发明人： HATA YUSHI , KURAMOCHI KOJIRO , HORIUCHI YUSUKE
IPC分类号： F16H57/12
摘要： PURPOSE:To increase discharge pressure of an oil pump in the condition where a valve device is closed and reduce generation of abnormal sound of transmission by increasing rotation load of a shaft which drives the pump. CONSTITUTION:A valve device 20 which is incorporated in an oil passage of an oil pump has a first chamber 26 and a second chamber 29 which are partitioned by a spool 25 and a solenoid valve 40. When communication of a supply port 34 and a discharge port 36 of the second chamber 29 is shut off by this solenoid valve 40, the spool 26 moves in such a way that it shuts off communication of a supply port 30 and a discharge port 32 of the first chamber 26 due to spring force, and discharge pressure of the oil pump increases. The spool 26 in this condition is not pushed against the spring force in spite of increase of discharge pressure of the oil pump due to difference of pressure receive area at both ends, and discharge pressure of the oil pump is increased sufficiently.

68. 发明专利

JPH0460A DIRECT COUPLING CLUTCH CONTROL DEVICE FOR AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH0460A
公开(公告)日：1992-01-06
申请号：JP9880990
申请日：1990-04-13
申请人： TOYOTA MOTOR CORP
发明人： TAKADA MITSURU , KURAMOCHI KOJIRO
IPC分类号： F16H61/14
摘要： PURPOSE:To prevent the occurrence of a judder and to sufficiently ensure the slip region of a direct coupling clutch by deciding whether a direct coupling clutch is engaged in a slip state based on the total degree of satisfaction determined by a computing means. CONSTITUTION:In consideration of a vehicle state related to an L/U shift pattern according to a control rule based on a fuzzy inference, the total degree Lu (ON) of satisfaction at which an L/U clutch 20 is brought into an engaging state, the total degree Lu (OFF) of satisfaction at which the clutch is brought into a release state, and the total degree Lu (SL) of satisfaction at which the clutch is brought into a slip state are respectively calculated. When ON is selected, a drive signal SD having a duty ratio of 100% is outputted from an L/U clutch control device 64, a solenoid on-off valve 34 is completely closed, and the L/U clutch 20 is brought into an engaging state. When SL is selected, a drive signal SD having a given duty ratio is outputted, the solenoid valve 34 is opened and closed at the duty ratio, and the L/U clutch 20 is brought into a slip state.

69. 发明专利

JPH01238722A ANNULAR PISTON WITH APPLY TUBE FOR HYDRAULIC SERVO MECHANISM OF AUTOMATIC TRANSMISSION 失效
公开(公告)号：JPH01238722A
公开(公告)日：1989-09-22
申请号：JP24808988
申请日：1988-10-01
申请人： AISIN AW CO , TOYOTA MOTOR CORP
发明人： KANO TAKEMASU , MIURA MASAKATSU , KURAMOCHI KOJIRO , KUSHIMA TATSUO
IPC分类号： F16D65/18 , F16H61/30 , F16H63/12 , F16H63/30
摘要： PURPOSE:To aim at improvement of the fitting accuracy of a sealing member by press-forming an annular piston portion and an apply tube portion integrally and interposing an annular sealing member between a pressure face and the check plate of the sealing member. CONSTITUTION:A piston body 1 consists of an annular piston portion 10 and an apply tube 1A, an annular projection 111 is provided on a pressure wall 11 and the body 1 and the pressure wall 11 is integrally formed by press- forming. The annular outside sealing member 3 is held between the pressure wall 11 and the check plate of the sealing member 2 and has an outer diameter larger than these by a predetermined size, and the annular inside sealing member 4 is held between the pressure wall 11 and the check plate 2 and has an inner diameter smaller than these. Due to like this construction, the fitting accuracy of the sealing members 3, 4 to the piston portion 10 is obtained.

70. 发明专利

JPH01195134A HYDRAULIC CONTROL DEVICE FOR DRIVING TORQUE DISTRIBUTION CONTROL CLUTCH OF 4-WHEEL DRIVE CAR 失效
公开(公告)号：JPH01195134A
公开(公告)日：1989-08-07
申请号：JP24533288
申请日：1988-09-29
申请人： TOYOTA MOTOR CORP
发明人： KATO NOBUYUKI , KURAMOCHI KOJIRO , NAKAMURA SHINYA , HOJO YASUO
IPC分类号： B60K17/35 , B60K17/34 , B60K17/346
摘要： PURPOSE:To prevent the occurrence of time lag in driving torque distribution control by switching plural directional control valves by each on-off operation of plural solenoid valves. CONSTITUTION:In a hydraulic control device, an electric current is applied to two solenoid valves 86 and 130 under individual control. When an electric current is applied to both directional control valves 86 and 130, and both solenoid valves 86, 130 are opened, a spool valve 92 of the first directional control valve 86 and a spool valve 112 of the second directional control valve 110 are located at upper positions. Clutch oil pressure amounts to the maximum oil pressure when both the solenoid valves 86 and 130 are on-state. When one of the solenoid valves 86 and 130 is off-state, it amounts to medium oil pressure, and when both solenoid valves 86 and 130 are off-state, it amounts to the minimum oil pressure 0.

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