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    Tire condition obtaining device and tire information processing device
    2.
    发明专利
    Tire condition obtaining device and tire information processing device 有权
    轮胎条件获取装置和轮胎信息处理装置

    公开(公告)号：JP2003306016A

    公开(公告)日：2003-10-28

    申请号：JP2002103198

    申请日：2002-04-05

    Applicant: Toyota Motor Corp ,  トヨタ自動車株式会社

    Inventor： TABATA MASAAKI ,  WAKABAYASHI KAZUYOSHI ,  OGAWA ATSUSHI ,  DOI TAKASHI ,  KUSUNOKI HIDEKI

    IPC: G08C17/02 ,  B60C23/02 ,  B60C23/04 ,  B60C23/06 ,  B60C23/08 ,  B60C23/20

    CPC classification number: B60C23/0416 ,  B60C23/0462

    Abstract: PROBLEM TO BE SOLVED: To automatically determine whether the tire information is transmitted from a non-mounted tire or not when the tire information is transmitted from a plurality of tires including a mounted tire mounted on a vehicle and a non- mounted tire carried on the vehicle without being mounted on the vehicle. SOLUTION: A temperature of the mounted tire is raised with a large gradient as the vehicle traveling time passes, while the temperature variation of the non-mounted tire is small. When temperature variation quantity ΔTh in a predetermined time period shown by the temperature information included in the tire information transmitted from the tire is equal to or lower than predetermined variation quantity ΔTs, it is determined that the tire information is transmitted from the non-mounted tire. COPYRIGHT: (C)2004,JPO

    Abstract translation: 要解决的问题：当轮胎信息从包括安装在车辆上的安装轮胎和非安装轮胎的多个轮胎发送时，自动确定轮胎信息是否从非安装轮胎发送 承载在车辆上而不安装在车辆上。 解决方案：随着车辆行驶时间的流逝，安装轮胎的温度以大的梯度升高，而非安装轮胎的温度变化小。 当由从轮胎发送的轮胎信息中包含的温度信息所示的预定时间段内的温度变化量ΔTh等于或低于预定变化量ΔTs时，确定轮胎信息是从非安装轮胎 。 版权所有（C）2004，JPO

    MEASURING DEVICE FOR DAMPING FORCE
    4.
    发明专利
    MEASURING DEVICE FOR DAMPING FORCE 失效

    公开(公告)号：JPH0735633A

    公开(公告)日：1995-02-07

    申请号：JP17886893

    申请日：1993-07-20

    Applicant: AISIN SEIKI ,  TOYOTA MOTOR CORP

    Inventor： ENOMOTO NAOYASU ,  WATANABE KAZUYA ,  TSUZUKI TAKAYOSHI ,  KUSUNOKI HIDEKI

    IPC: B60T8/00 ,  G01L5/28 ,  G01M17/007

    Abstract: PURPOSE:To make it difficult to transmit the heat of braking pads to a sensor and prevent lowering of detection precision due to vibration by disposing a load composition means between the circumferential ends of the braking pads and a resilient member and providing the load composition means for composing the circumferential load of respective braking pads at the time of braking. CONSTITUTION:When an inner pad 1 and an outer pad 2 are pushed toward a rotor side with a hydraulic cylinder 5 at the time of damping frictional force produces between a rotor and the pads 1, 2 and loads are applied thereto in the direction of A. The loads from the pads 1, 2 are transmitted to a piston 20 through other pistons 1a, 2b, the loads of the pads 1, 2 are composed with the piston 20 and transmitted to a ring 21. When the ring 21 receives the loads, strain produces at a position 21d because other positions 21b, 21c are restrained with a pad holding member 4, the strain is detected with a strain sensor 30 and damping force is detected. The frictional heat of the pads 1, 2 is difficult to be transmitted because it is transmitted through the pistons 1a, 2a, 20 and the moment of inertia such as the ring 21 is deformed due to vibration does not produce.

    MALFUNCTION DETECTOR FOR YAW RATE SENSOR OUTPUT
    6.
    发明专利
    MALFUNCTION DETECTOR FOR YAW RATE SENSOR OUTPUT 失效

    公开(公告)号：JPH03193559A

    公开(公告)日：1991-08-23

    申请号：JP33158289

    申请日：1989-12-21

    Applicant: TOYOTA MOTOR CORP

    Inventor： KUSUNOKI HIDEKI ,  TAKEDA OSAMU ,  INOUE HIDEO ,  TANAKA HIROAKI ,  KOIKE SHIN ,  SUGIYAMA MIZUHO ,  OHASHI KAORU ,  IWATA HITOSHI ,  ISHIKAWA SUSUMU

    IPC: G01P21/00 ,  B62D6/00 ,  B62D101/00 ,  B62D111/00 ,  B62D113/00 ,  B62D137/00

    Abstract: PURPOSE:To detect a malfunction of yaw rate sensor output with a simple constitution by constituting a yaw rate detecting value or a working value so as to judge whether it is within the specified range depending on the basis of a detected front-wheel steering angle or not. CONSTITUTION:A steering angle is detected by a front-wheel steering angle sensor 61, and thereby whether the yaw rate detecting value of a yaw rate sensor 63 or the working value is within the specified range dependent on the basis of a detected front wheel steering angle or not is judged by an electric controller C. Incidentally, a yaw rate acting on a car body is a physical quantity closely rated to steering of a vehicle, while a steering wheel 14 is maintained in the state that a turning angle is large to some extent, and when the vehicle is in turning motion at a small turning radius, the yaw rate shows a large value, and a variation in this yaw rate grows larger when the steering wheel 14 is quickly turned and the vehicle is suddenly steered. Consequently, such a yaw rate that may be really produced in the car body is compared with the detected yaw rate, through which something wrong in the output of the yaw rate sensor 63 is judged.

    REAR WHEEL STEERING DEVICE
    7.
    发明专利
    REAR WHEEL STEERING DEVICE 失效

    公开(公告)号：JPH0392482A

    公开(公告)日：1991-04-17

    申请号：JP22958389

    申请日：1989-09-05

    Applicant: TOYOTA MOTOR CORP

    Inventor： OGAWA KAZUO ,  KUSUNOKI HIDEKI

    IPC: B62D7/14

    Abstract: PURPOSE:To improve the response of the rear wheel steering in a straight running condition without reducing the forward heading property in a turning steering time by setting an object steering amount reflecting the yaw rate smaller when the steering angle of the front wheels detected by a rear wheel steering control device is large, and reflecting larger when the steering angle is small. CONSTITUTION:When a rear wheel steering mechanism 1 steers the rear wheels, a yaw rate detecting device 2 detects the yaw rate generated at the car body, and an object steering amount increasing as the yaw rate increases is determined to steer the rear wheels to deny the yaw rate depending on the detected yaw rate. The rear wheel steering control device 3 makes the steering amount of the rear wheels into the determined object steering amount. In this case, the rear wheel steering control device 3 makes the yaw rate detected by the first steering amount setting device 5 reflected smaller when the steering angle of the front wheels detected by a front wheel steering angle detecting device 4 is large, and the yaw rate detected by the second steering amount setting device 6 reflected larger when that steering angle is small, to set the object steering amount.

    REAR-WHEEL STEERING CONTROL DEVICE FOR VEHICLE
    8.
    发明专利
    REAR-WHEEL STEERING CONTROL DEVICE FOR VEHICLE 失效

    公开(公告)号：JPH0277360A

    公开(公告)日：1990-03-16

    申请号：JP22773988

    申请日：1988-09-12

    Applicant: TOYOTA CENTRAL RES & DEV ,  TOYOTA MOTOR CORP

    Inventor： MIZUNO MASAHIKO ,  AMANO YASUSHI ,  DOI SHUNICHI ,  KUSUNOKI HIDEKI

    IPC: B62D6/02 ,  B62D6/00 ,  B62D7/14 ,  B62D101/00 ,  B62D113/00 ,  B62D117/00 ,  B62D131/00 ,  B62D137/00

    Abstract: PURPOSE:To improve stability and responsiveness of a vehicle by steering the rear wheels according to the optimum feedback gain calculated by a basic gain determined depending on the stability and responsiveness of a vehicle from the relation between slip angles of front and rear wheels and a steering angle and a vehicle state decision value showing the state of the vehicle and a driver's will. CONSTITUTION:A steering speed signal and a car velocity signal are input to vehicle state decision means II11 to decide the state of the vehicle and the present state of a driver's steering will from the above signals and output a vehicle state decision value. On the other hand, basic gain generating means II12 decides the basic gain depending on the stability and responsiveness of the vehicle. Optimum gain calculating means II13 calculates the feedback gain most suitable for the present vehicle state according to the basic gain and the vehicle state decision value to be output as the optimum gain. Steering amount calculating means 11 calculates the rear wheel steering amount by multiplying the behavior variation of a vehicle from a behavior sensor I3 by the optimum gain to be output as a control signal. Rear wheel steering actuator means III controls the rear wheels to be steered according to the control signal.

    REAR WHEEL STEERING CONTROL DEVICE FOR FRONT AND REAR WHEEL STEERED VEHICLE
    9.
    发明专利
    REAR WHEEL STEERING CONTROL DEVICE FOR FRONT AND REAR WHEEL STEERED VEHICLE 失效

    公开(公告)号：JPS63112274A

    公开(公告)日：1988-05-17

    申请号：JP25877786

    申请日：1986-10-30

    Applicant: TOYOTA MOTOR CORP

    Inventor： KUSUNOKI HIDEKI ,  KAWAKAMI SEIJI ,  KIDO AKIHIKO ,  SHIGEMATSU TAKASHI ,  KOMODA NORIO

    IPC: B62D7/14 ,  B62D6/00 ,  B62D7/15 ,  B62D101/00 ,  B62D113/00

    Abstract: PURPOSE:To enable accurate steering of rear wheels to be attained, by calculating a car speed on the basis of a rotary speed of plural wheels while determining steering angle ratio on the basis of the calculated car speed and controlling a rear wheel steering device so that the accurate car speed can be always detected in no relation to racing of one single wheel. CONSTITUTION:A front and rear wheel steered vehicle steers rear wheels RW by controlling a rear wheel steering device 1 in accordance with a steering condition of front wheels FW and a car speed. Here a rotary speed detecting sensors 2a, 2b, which respectively detect rotary speeds of plural wheels FW, are provided, and on the basis of output signals of these sensors, the car speed is calculated by a car speed arithmetic means 3. And on the basis of the calculated car speed, a steering angle ratio determining means 4 calculates ratio (steering angle ratio) of the rear wheels RW for a steering angle of the front wheels FW. While a moderating means 5, which relaxes a change of the steering angle ratio due to a change of the calculated car speed, is provided, thus a control means 6, which outputs a control signal corresponding to the relaxed steering angle ratio to the rear wheel steering device 1, steers the rear wheels RW in accordance with the steering angle ratio.

    Tire pressure warning system and method of controlling the same
    10.
    发明专利
    Tire pressure warning system and method of controlling the same 有权
    轮胎压力警告系统及其控制方法

    公开(公告)号：JP2010143406A

    公开(公告)日：2010-07-01

    申请号：JP2008322853

    申请日：2008-12-18

    Applicant: Toyota Motor Corp ,  トヨタ自動車株式会社

    Inventor： KUSUNOKI HIDEKI

    IPC: B60C23/04 ,  G01L17/00

    CPC classification number: B60C23/0408

    Abstract: PROBLEM TO BE SOLVED: To provide a tire pressure warning system by which safety is further improved. SOLUTION: A tire pressure warning system emits a tire pressure decrease warning, based on a relationship between tire temperature and reference tire pressure, if the tire pressure is lower than a first tire pressure warning threshold value with respect to the reference tire pressure, and after emitting the tire pressure decrease warning, terminates the tire pressure decrease warning if the tire pressure is higher than a second tire pressure warning threshold value with respect to the reference tire pressure. In this system, the first tire pressure warning threshold value is lower than the second tire pressure warning threshold value, and a difference between the first tire pressure warning threshold value and the second tire pressure warning threshold one is structured to be smaller in case that the tire temperature is higher than a predetermined temperature threshold value than in case that the tire temperature is lower than the predetermined temperature threshold value. COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题：提供进一步提高安全性的轮胎压力警告系统。 解决方案：轮胎压力警告系统基于轮胎温度和参考轮胎压力之间的关系发射轮胎压力降低警告，如果轮胎压力相对于参考轮胎压力低于第一轮胎压力警告阈值 并且在发出轮胎压力降低警告之后，如果轮胎压力相对于基准轮胎压力高于第二轮胎压力警告阈值，则结束轮胎压力降低警告。 在该系统中，第一轮胎压力警告阈值低于第二轮胎压力警告阈值，并且在第一轮胎压力警告阈值的情况下，将第一轮胎压力警告阈值与第二轮胎压力警告阈值1之间的差构成为较小， 轮胎温度比轮胎温度低于预定温度阈值的情况下高于预定温度阈值。 版权所有（C）2010，JPO＆INPIT

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