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21. 发明专利

JPH0485178A REAR WHEEL STEERING CONTROLLER FOR FOUR-WHEEL STEERING VEHICLE 失效
公开(公告)号：JPH0485178A
公开(公告)日：1992-03-18
申请号：JP19945290
申请日：1990-07-27
申请人： TOYOTA MOTOR CORP
发明人： KOIKE SHIN , TAKEDA OSAMU , TANAKA HIROAKI , SUGIYAMA MIZUHO , OHASHI KAORU , IWATA HITOSHI , ISHIKAWA SUSUMU
IPC分类号： B62D6/00 , B62D5/04 , B62D7/14 , B62D7/15 , B62D101/00 , B62D113/00 , B62D133/00 , B62D137/00
摘要： PURPOSE:To improve steering accuracy and responsiveness of rear wheels by constituting them to be largely varied with a controlled variable held in between at a time when a desired steering angle shows a zero neighborhood as well as to set and control them in corresponding to the controlled variable converted when it shows such other than the zero neighborhood. CONSTITUTION:When a desired steering angle set by a desired steering angle decision means 1 shows a zero neighborhood, a converting means 4 converts the desired steering angle into a controlled variable showing a turning angle of an electric motor 2 with its characteristic which is largely varied in holding the controlled variable showing a reference turning angle of the electric motor 2 in between to a variation in the desired steering angle. In addition, when it shows such other than zero neighborhood, the desired steering angle is converted into the controlled variable with the characteristic being varied almost proportional to a variation in the desired steering angle, while a control signal outputting means 5 outputs a control signal confirmed to the controlled variable to the motor 2, setting and controlling the turning angle in response to the controlled variable. Accordingly, at a neutral dead zone part related to a hydraulic valve in a hydraulic copying mechanism 3, the turning angle of the motor 2 is largely varied to the variation of the desired steering angle, having a valve element 3a largely displaced, thus any effect of the neutral dead zone part in rear-wheel RW steering is negated.

22. 发明专利

JPH042577A ZERO POINT CORRECTING DEVICE FOR STEERING ANGLE SENSOR 失效
公开(公告)号：JPH042577A
公开(公告)日：1992-01-07
申请号：JP10100290
申请日：1990-04-17
申请人： TOYOTA MOTOR CORP
发明人： TANAKA HIROAKI , TAKEDA OSAMU , KOIKE SHIN , SUGIYAMA MIZUHO , OHASHI KAORU , IWATA HITOSHI , ISHIKAWA SUSUMU , KUSUNOKI HIDEKI
IPC分类号： G01B21/22 , B62D15/02
摘要： PURPOSE:To perform the zero point correction of a steering angle even during the stop or low-speed travel of a vehicle by performing the zero point correction of a steering wheel steering angle detected by a steering angle sensor using assisting pressure supplied to a power cylinder in a power steering. CONSTITUTION:In a vehicle provided with a power steering 1. an oil pressure sensor 3 is provided in the power steering 1 so as to detect the assisting pressure supplied to a power cylinder la in the power steering 1. When the assisting pressure detected by the oil pressure sensor 3 is the lowest, the steering wheel steering angle detected by a steering angle sensor 2 is set as the zero point correction value by a zero point correction value setting means 4, and the zero point correcting operation based on the zero point correction value set to the steering wheel steering angle detected by the steering angle sensor 2 is performed by a correcting arithmetic means 5. The zero point correction of the steering wheel steering angle can be thereby performed accurately even during the stop or low-speed travel of the vehicle.

23. 发明专利

JPH03239618A ELECTRONIC CONTROL SUSPENSION DEVICE 失效
公开(公告)号：JPH03239618A
公开(公告)日：1991-10-25
申请号：JP23687290
申请日：1990-09-05
申请人： TOYOTA MOTOR CORP , TOYOTA CENTRAL RES & DEV
发明人： YUYA TOSHIO , TAKEMA SHUICHI , YONEKAWA TAKASHI , TAKEDA OSAMU , DOI SHUNICHI
IPC分类号： B60G17/015
摘要： PURPOSE:To prevent an abrupt action change by setting a variation amount so that, when estimated or detected acceleration is more than a predetermined value, a target posture variation ratio to acceleration becomes higher than in the case where the acceleration is less than the perdetermined value, in an electronic control suspension device of an automobile and the like. CONSTITUTION:A running state detecting means M4 detects or estimates acceler ation of a vehicle body to input into a control means M5. The control means M5 determines a target posture variation amount in accordance with the acceler ation, and controls a hydraulic actuator M2 via a fluid supplying/discharging means M3 to adjust a car height. In this case, when the acceleration is more than the predetermined value, a target posture variation amount is determined so that a ratio thereof to the acceleration becomes higher than in the case of the acceleration being less than the predetermined value. According to this constitution, roll rigidity and pitch rigidity are reduced in the case of the acceler ation exceeding the predetermined value and a driver can acknowledge the state is approaching the limit running state so that an abrupt action change is prevented.

24. 发明专利

JP2013232129A Rental fee setting device 审中-公开
标题翻译：租赁费设定
公开(公告)号：JP2013232129A
公开(公告)日：2013-11-14
申请号：JP2012104313
申请日：2012-05-01
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： TAKEDA OSAMU
IPC分类号： G06Q30/06 , G06Q30/02 , G06Q30/04 , G06Q50/30 , G07F17/00 , H01M10/48
CPC分类号： Y02E60/12
摘要： PROBLEM TO BE SOLVED: To appropriately set a rental fee of an electric vehicle.SOLUTION: A store terminal 200 acquires a charging rate of a battery 20 when lending a vehicle, and sets a rent unit price according to the charging rate. When the charging rate falls within a range of a deprecated charging rate where deterioration of the battery 20 may be accelerated, the rent unit price is set to a high value compared with a case where the charging rate falls within a recommended charging rate range where the deterioration is not accelerated more than that of the deprecated charging rate range. When returning the vehicle, the store terminal 200 acquires a charging rate of the battery 20, when the charging rate falls within the recommended charging rate range, offers a high service point and, as the charging rate is separated farther from the recommended charging rate range, sets the service point lower.
摘要翻译：要解决的问题：适当设定电动车辆的租赁费用。解决方案：商店终端200在出租车辆时获取电池20的充电率，并根据充电率设定租金单价。当充电率落在可以加速电池20的劣化的不利的充电率的范围内时，与充电率落在建议的充电率范围内的情况相比，将租金单价设定为高值，恶化不会比不推荐的充电率范围加速。当返回车辆时，存储终端200获取电池20的充电率，当充电率落在推荐充电率范围内时，提供高服务点，并且随着充电速率与推荐的充电率范围分离更远，将服务点设置得较低。

25. 发明专利

JP2002331816A SUSPENSION CHARACTERISTIC CONTROL DEVICE FOR VEHICLE 失效
公开(公告)号：JP2002331816A
公开(公告)日：2002-11-19
申请号：JP2001137788
申请日：2001-05-08
申请人： TOYOTA MOTOR CORP
发明人： MIZUNO KAZUYUKI , TAKEDA OSAMU , MORINAGA YOJI , OKAWA MASAHIKO , MATSUOKA YUSUKE , KANBARA SATORU
IPC分类号： B60G17/015
摘要： PROBLEM TO BE SOLVED: To provide a suspension characteristic control device for a vehicle provided with a suspension mechanism control means for automatically changing a suspension characteristic so as to attach importance to riding comfortableness over maneuvering stability during automatic traveling and stabilize a vehicle attitude when an occupant moves. SOLUTION: This device is provided with a non-linear H control device 30 for changing damping force of a shock absorber 20 so as to give a preference to riding comfortableness over maneuvering stability when an automatic traveling vehicle is decided to be during the automatic traveling. The device is provided with a seat sensor 20. When moving of the occupant within the vehicle is detected by the seat sensor 20, the non-linear H control device 30 changes the suspension characteristic so as to stabilize the attitude of the vehicle.

26. 发明专利

JP2000177616A TRAVELLING SUPPORT DEVICE OF VEHICLE IN EMERGENCY 失效
公开(公告)号：JP2000177616A
公开(公告)日：2000-06-27
申请号：JP35649998
申请日：1998-12-15
申请人： TOYOTA MOTOR CORP
发明人： GOTO TAKESHI , SATO KUNIHITO , SHIOZAWA SHOKICHI , SAWADA KOICHI , FURUHIRA TAKAHIRO , FUJITA KOZO , TAKEDA OSAMU , HARA KATSUYA , ONUMA YUTAKA , SUGIMOTO YUJI
IPC分类号： B60R21/00 , B60K28/14 , B60T8/00 , B60T8/1755 , B60T8/24 , B60T8/58 , B60W30/00 , B62D5/04 , B62D6/00 , B62D101/00 , B62D103/00 , B62D109/00 , B62D111/00 , B62D113/00 , B62D137/00 , G05D1/02 , G08G1/16
摘要： PROBLEM TO BE SOLVED: To improve the avoiding performance of vehicle to avoid the emergent conditions when the vehicle is in emergency. SOLUTION: A steer ECU14 supplies command current normally in accordance with the steering angle and the velocity V of a steering wheel 16 to an auxiliary motor 38. The steer ECU14 supplies larger command current to the auxiliary motor 38 than in normal case when it detects an emergency signal outputted based on the relative distance L to an obstacle in front and the self velocity V. In this way, if the auxiliary motor 38 is controlled, a steering gear ratio becomes small and wheels are steered geatly by a small amount of operation of the steering wheel 16.

27. 发明专利

JPH1159462A STEERING ANGLE ABNORMALITY DETECTING SENSOR AND VEHICLE EQUIPPED THEREWITH 失效
公开(公告)号：JPH1159462A
公开(公告)日：1999-03-02
申请号：JP22645597
申请日：1997-08-22
申请人： TOYOTA MOTOR CORP
发明人： FUJITA KOZO , TAKEDA OSAMU
IPC分类号： B62D6/00 , B62D7/14 , B62D101/00 , B62D113/00 , B62D137/00 , G01B21/22
摘要： PROBLEM TO BE SOLVED: To eliminate necessity of using two steering angle sensors and reduce costs by detecting an abnormality of the steering angle sensor based on the deviation between a computed steering angle value obtained by integrating a steering angle amount put out by the steering angle sensor and a steering angle value put out by the steering angle sensor. SOLUTION: A steering angle sensor abnormality detection processing routine is executed at an ECU 1. That is, a computed steering angle value is calculated based on a steering angle change amount 'A' from a steering angle sensor 21, and an estimated steering angle value is calculated based on right and left wheel speeds v1 and v2. Then, a computed steering angle integration average value and an estimated steering angle average value are calculated. Moreover, the estimated steering angle integration average value is subtracted from the computed steering angle integration average value so as to integrate a neutral correction value, and the neutral correction value is substracted from the present steering angle value to have a present steering angle value. And, when an absolute value of the difference between a steering angle value θ2 from a steering angle sensor 21 and the computed steering angle value after neutral correction is larger than a predetermined value, it is determined as abnormality.

28. 发明专利

JPH115556A REAR WHEEL STEERING ACTUATOR 失效
公开(公告)号：JPH115556A
公开(公告)日：1999-01-12
申请号：JP17309497
申请日：1997-06-13
申请人： AISIN SEIKI , TOYOTA MOTOR CORP
发明人： YAMANAKA TOSHIHIKO , TANIZAKI SHINJI , FUJITA KOZO , TAKEDA OSAMU
IPC分类号： B62D5/04 , B62D7/14
摘要： PROBLEM TO BE SOLVED: To provide a rear wheel steering actuator maintaining the stability of steering over a long period. SOLUTION: This actuator comprises a screw member 5 connected to a motor to be formed with an annular groove 10 in a peripheral part with an internal peripheral part meshed with a peripheral part of a rod 8 to convert a rotary motion of the motor 2 into a linear motion of the rod 8, bearing 7 supporting the screw member 5 able to rotate in a housing 6, and a snap ring 11 fitted to the groove 10 of the screw member 5 with elastic force acting in the diametric direction inward also brought into contact with a side surface of the bearing 7 to lock it to the screw member 5.

29. 发明专利

JPH09311036A DETECTOR FOR STEERING ANGLE FOR VEHICLE 失效
公开(公告)号：JPH09311036A
公开(公告)日：1997-12-02
申请号：JP12808596
申请日：1996-05-23
申请人： TOYOTA MOTOR CORP
发明人： TAKEDA OSAMU
IPC分类号： G01B21/22 , B62D15/02
摘要： PROBLEM TO BE SOLVED: To provide a detector by which a high-accuracy correction amount and a high- accuracy absolute steering angle are obtained by a method wherein frequencies of deviations between a steering angle estimated from a yaw motion, respective steering angles estimated from right and left wheel speeds and a detected steering angle are weighted according to a vehicle speed and the correction amount of the detected steering angle is found on the basis of the distribution of the respective frequencies. SOLUTION: A first deviation between an estimated steering angle from a yaw motion obtained by a first computing means M5 whose reliability is high in the high speed region of a vehicle speed and a detected steering angle is found. A second deviation between estimated steering angles from right and left wheel speeds obtained by a second computing means M6 whose reliability is high in a low-speed region and a detected steering angle is found. Respective frequencies of the first and second deviations are weighted by a frequency distribution difference means M7 according to the vehicle speed, and the distribution of the respective frequencies is found. As a result, the distribution of the respective frequencies of the first and second deviations are obtained so as to reflect reliability, and a correction amount is found by a correction means M8 on the basis of the distribution of the frequencies. As a result, the correction amount which reflects reliability is obtained, and a high-accuracy absolute steering angle can be obtained.

30. 发明专利

JPH06320930A FLUID PRESSURE ACTIVE SUSPENSION 失效
公开(公告)号：JPH06320930A
公开(公告)日：1994-11-22
申请号：JP13547693
申请日：1993-05-13
申请人： TOYOTA MOTOR CORP
发明人： TAKEDA OSAMU
IPC分类号： B60G17/015 , B60G17/04 , B60G17/056 , F16D27/112
摘要： PURPOSE:To make the smooth running off a vehicle possible by preventing the abrupt fluctuation of engine load even in a case where target pressure in an actuator, repeats its abrupt increase and decrease. CONSTITUTION:A hydraulic active suspension has an actuator 26 having a working fluid chamber 28; a pump 18 driven by an engine 16; working fluid supply passages 20,32 to connect the pump 18 to the working fluid chamber 28; working fluid discharge passages 32, 14; a target pressure operation unit 60 to compute target pressure in the working fluid chamber according to the running state of a vehicle; a servo valve 22 to control the supply and discharge of the working fluid according to the target pressure; and a supply pressure controllers 58, 60 to control the pressure in the supply passage 20 according to the target pressure. The supply pressure controller regulates the decrease rate of pressure to be above a fixed value in reducing the pressure in the supply passage.

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