-
1.发明授权Pneumatic tire pressure change detecting system comparing wheel speeds and weighting detection based on running conditions 失效气动轮胎压力变化检测系统根据运行条件比较轮速和加权检测
公开(公告)号：US5513523A
公开(公告)日：1996-05-07
申请号：US308440
申请日：1994-09-19
CPC分类号： B60C23/061
摘要： A subtractor calculates an actual wheel speed difference between rotational speeds of left and right wheels on a motor vehicle, and a steering angle converter calculates an actual steering angle from the actual wheel speed difference. The difference between the actual steering angle and an adequate steering angle which is produced based on a lateral acceleration is compared with a predetermined reference range. If the difference between the actual and adequate steering angles exceeds the predetermined reference range, then the pneumatic pressure of a tire on one of the left and right wheels is determined as being lowered. In the steering angle converter, a weight value is established according to a running condition of the motor vehicle, and the calculated actual steering angle or comparative sensitivity is varied according to the weight value. Since the comparative sensitivity is varied according to the running condition, a reduction in the pneumatic pressure of the tire can be detected even under running conditions which lead to large errors.
摘要翻译： 减法器计算机动车辆上左右轮的转速之间的实际车轮速度差，转向角转换器根据实际车轮速度差计算实际转向角。 将实际转向角与基于横向加速度产生的适当的转向角的差与预定的参考范围进行比较。 如果实际和足够的转向角之间的差超过预定的参考范围，则确定左轮和右车之一上的轮胎的气压降低。 在转向角转换器中，根据机动车辆的行驶状态建立重量值，并且根据重量值改变计算出的实际转向角度或比较灵敏度。 由于比较灵敏度根据运行条件而变化，因此即使在导致大的误差的运行条件下也能够检测出轮胎的气压降低。
-
2.发明授权
公开(公告)号：US5562080A
公开(公告)日：1996-10-08
申请号：US301903
申请日：1994-09-07
申请人： Takashi Nishihara , Toru Ikeda , Shuji Shiraishi , Osamu Yano
发明人： Takashi Nishihara , Toru Ikeda , Shuji Shiraishi , Osamu Yano
CPC分类号： F02D11/106 , F02D41/2438 , F02D41/2448 , F02D41/2474 , F02D41/28 , F02D2200/0404 , F02D2250/16 , F02D41/2464
摘要： A method for determining the fully-closed state of a subsidiary throttle valve. If a stable state judging circuit judges that there is no outside influence exerted on the operational state of the engine (a state in which the vehicle is stopped and the engine is in an idling state) even if the subsidiary throttle valve is fully closed, a valve closing circuit closes the subsidiary throttle valve and a fully-closed state determination is carried out. If the opening degree of the subsidiary throttle valve or the engine revolution number is largely varied during the determination process of the fully-closed state determination circuit, a valve-closing inhibiting circuit inhibits the closing of the subsidiary throttle valve to discontinue the determination. Even if all of the conditions for determination are satisfied again, the closing of the subsidiary throttle valve and the restarting of determination by the fully-closed state determination circuit are inhibited until the comparator circuit judges that the vehicle starts traveling and vehicle speed exceeds a reference value.
摘要翻译： 一种用于确定辅助节流阀的完全关闭状态的方法。 如果稳定状态判断电路判断即使辅助节流阀完全关闭，也不会对发动机的运转状态（车辆停止，发动机处于怠速状态的状态）施加外部影响， 闭阀回路关闭辅助节流阀，并执行完全关闭状态确定。 如果在完全关闭状态判定电路的判定处理中，辅助节流阀的开度或发动机转数大幅度变化，则关闭禁止电路阻止副节流阀的关闭而停止判定。 即使再次满足判定条件，禁止辅助节流阀的关闭和全闭合状态判定电路的重新开始判定，直到比较电路判断车辆开始行驶，车速超过基准 值。
-
公开(公告)号：US5458212A
公开(公告)日：1995-10-17
申请号：US301901
申请日：1994-09-07
申请人： Takashi Nishihara , Toru Ikeda , Shuji Shiraishi , Osamu Yamamoto , Osamu Yano
发明人： Takashi Nishihara , Toru Ikeda , Shuji Shiraishi , Osamu Yamamoto , Osamu Yano
摘要： In a traction control device in which an initial control torque of an engine is determined in accordance with an acceleration of the vehicle, when an excessive slipping of driven wheels is detected, a time taken for proceeding of the excessive slipping of the driven wheels from a large slip state to a small slip state is counted by a timer. If such time is smaller than a reference time and a gear ratio of the vehicle is of a first gear shift to provide a low vehicle speed, it is decided that the vehicle is traveling on an upward sloping road, and a lower limit value for defining the initial control torque of the engine determined in an initial control torque calculating means is corrected into an increased value in an initial torque correcting means. This prevents the initial control torque of the engine from being excessively reduced at the start of a traction control. By this construction, it is possible to prevent an initial control torque from being excessively reduced due to a misjudgment of a friction coefficient of a surface of an upward or downward sloping road to insure an acceleratability of a vehicle.
摘要翻译： 在其中根据车辆的加速度确定发动机的初始控制扭矩的牵引力控制装置中，当检测到从动轮的过度滑动时，驱动轮的过度滑动所用的时间 计时器对大滑移状态进行小滑动状态计数。 如果这样的时间小于参考时间，并且车辆的变速比为第一档以提供低车速，则判定车辆在向上倾斜的道路上行驶，并且确定下限值 在初始转矩校正装置中将在初始控制扭矩计算装置中确定的发动机的初始控制扭矩校正为增加的值。 这防止在牵引力控制开始时发动机的初始控制扭矩过度减小。 通过这种结构，可以防止初始控制扭矩由于对向上或向下倾斜的道路的表面的摩擦系数的误判而被过度地减小，以确保车辆的加速性。
-
公开(公告)号：US5589815A
公开(公告)日：1996-12-31
申请号：US329941
申请日：1994-10-26
申请人： Takashi Nishihara , Toru Ikeda , Osamu Yano , Shuji Shiraishi
发明人： Takashi Nishihara , Toru Ikeda , Osamu Yano , Shuji Shiraishi
CPC分类号： B60C23/061
摘要： The rotational speed difference between rotational speeds of front and rear road wheels of a motor vehicle is weighted by a first ratio, and the difference between the rotational speed difference between rotational speeds of front left and right road wheels and an average signal of reference steering angle or between the rotational speed difference between rotational speeds of rear left and right road wheels and the average signal of reference steering angle is weighted by a second ratio. A sum signal representative of the sum of the rotational speed difference weighted by the first ratio and the difference weighted by the second ratio is used to determine a pneumatic tire pressure reduction highly accurately even when running conditions of the motor vehicle change such as when the motor vehicle makes a turn.
摘要翻译： 机动车辆的前后车轮的转速之间的转速差由第一比例加权，前左右车轮的转速与基准转向角的平均信号之间的差 或左后车轮的转速与基准转向角的平均信号之间的转速差以第二比例进行加权。 代表由第一比率加权的转速差和由第二比率加权的差的总和的和信号用于即使在机动车辆的运行条件改变时，例如当马达 车辆轮到
-
公开(公告)号：US4959794A
公开(公告)日：1990-09-25
申请号：US279693
申请日：1988-12-05
申请人： Shuji Shiraishi , Hironobu Kiryu , Takashi Nishihara , Naoki Omomo , Makoto Sato
发明人： Shuji Shiraishi , Hironobu Kiryu , Takashi Nishihara , Naoki Omomo , Makoto Sato
CPC分类号： B60K28/16
摘要： A driving wheel slip control device has a prohibition determining device for determining a prohibition region in which an engine control operation such as fuel suspension or an ignition stop is carried out, and a prohibition device for prohibiting the engine control operation even if an excessive or abnormal slip is generated. Prevention of a resonance and an engine stall are realized in addition to an expansion of a slip control region.
-
公开(公告)号：US06431872B1
公开(公告)日：2002-08-13
申请号：US09457707
申请日：1999-12-10
申请人： Shuji Shiraishi , Yuichi Hashimoto , Yutaka Nishi , Mitsuya Serizawa , Osamu Yamamoto , Takashi Nishihara , Hiroyuki Kawagoe , Nobuharu Kuriki , Takuya Sakai , Hidenori Ishihama , Toyotaka Torii , Akihiko Ohtsu
发明人： Shuji Shiraishi , Yuichi Hashimoto , Yutaka Nishi , Mitsuya Serizawa , Osamu Yamamoto , Takashi Nishihara , Hiroyuki Kawagoe , Nobuharu Kuriki , Takuya Sakai , Hidenori Ishihama , Toyotaka Torii , Akihiko Ohtsu
IPC分类号： G09B905
CPC分类号： G09B9/05
摘要： A cockpit is supported by a motion base in a state of being capable of making swinging movement. A host computer calculate vehicle motion information in accordance with operation of various operation equipments performed by a driver accommodated in the cockpit. A simulation image is formed, the cockpit is controlled for swinging movement, and various meters or the like in the cockpit are controlled on the basis of an obtained result of the calculation. Thus, the drive simulation is carried out in a state approximate to that of a real vehicle.
摘要翻译： 驾驶舱由能够进行摆动的状态下的运动基座支撑。 主计算机根据驾驶舱内的驾驶员所执行的各种操作设备的操作来计算车辆运动信息。 形成模拟图像，驾驶舱被控制为摆动运动，并且基于获得的计算结果来控制驾驶舱中的各种仪表等。 因此，驱动模拟以与实际车辆接近的状态进行。
-
公开(公告)号：US5446657A
公开(公告)日：1995-08-29
申请号：US15173
申请日：1993-02-11
IPC分类号： B62D6/00 , B60K28/10 , B62D101/00 , B62D105/00 , B62D111/00 , B62D113/00 , B62D137/00 , F02D29/02 , F02D41/04 , B60K26/00
CPC分类号： B60K28/10
摘要： A steering stability control system for a vehicle includes a turning state judging device for judging turning state of the vehicle to output an oversteering signal or an understeering signal, and a steering stability control device for controlling an output torque from an engine on the basis of an output from the turning state judging device. This system further includes a counter-steering judging device capable of judging a counter-steering state of the vehicle and causing the turning state judging device to output an oversteering signal when the counter-steering state is judged. Thus, it is possible to reliably judge the oversteering and the understeering during turning of the vehicle.
摘要翻译： 一种用于车辆的转向稳定性控制系统包括：转向状态判断装置，用于判断车辆的转向状态以输出过度转向信号或转向不足转向信号;以及转向稳定性控制装置，用于基于 从转弯状态判断装置输出。 该系统还包括能够判断车辆的反向转向状态并使得转向状态判断装置在判断反向转向状态时输出过转向信号的反转向判定装置。 因此，可以可靠地判断车辆转向时的过度转向和转向不足。
-
公开(公告)号：US5866812A
公开(公告)日：1999-02-02
申请号：US729242
申请日：1996-10-09
申请人： Takashi Nishihara , Shuji Shiraishi , Osamu Yamamoto , Osamu Yano
发明人： Takashi Nishihara , Shuji Shiraishi , Osamu Yamamoto , Osamu Yano
CPC分类号： B60C23/061
摘要： A reduction in tire pressure in follower wheels and driven wheels is precisely determined irrespective of slipping states of the driven wheels through the use of apparatus wherein in a driven wheel slip amount calculating means M4 calculates a driven wheel slip amount KIDD as a left and right follower wheel speed difference FID and a left and right driven wheel speed difference RID; in a driven wheel torque calculating means M5, a driven wheel torque TQDW is calculated; in a driven wheel slip amount estimating means M6, a characteristic of variation in driven wheel slip amount KIDD relative to the variation in driven wheel torque TQDW is estimated using a least squares method; in a deviation calculating means M7, a deviation CKID between the follower wheel speed difference FID and the driven wheel speed difference RID in a state in which the driven wheels are not slipping, is calculated as an intercept of the driven wheel slip amount KIDD at a driven wheel torque equal to 0 (zero) in a graph of the variation characteristic; and in a wheel pressure-reduction determining means M8, a reduction in tire pressure is determined from a difference in diameter between the follower wheels and the driven wheels by comparing the deviation CKID with a reference value.
摘要翻译： 随动轮和从动轮的轮胎压力的降低被精确地确定，而与通过使用装置的从动轮的滑动状态无关，其中在从动轮打滑量计算装置M4计算作为左右跟随器的从动轮滑移量KIDD 车轮速度差FID和左右驱动轮速差RID; 在从动轮转矩计算装置M5中，计算从动轮转矩TQDW; 在从动轮滑移量估计装置M6中，使用最小二乘法来估计从动轮滑动量KIDD相对于从动轮扭矩TQDW的变化的变化的特性; 在偏差计算装置M7中，计算在从动轮未滑动的状态下的从动轮速度差FID与从动轮速度差RID之间的偏差CKID作为从动轮滑移量KIDD的截距， 驱动轮转矩在变化特性曲线图中等于0（零）; 并且在车轮压力降低确定装置M8中，通过将偏差CKID与参考值进行比较，根据从动轮和从动轮之间的直径差来确定轮胎压力的降低。
-
公开(公告)号：US5747686A
公开(公告)日：1998-05-05
申请号：US729235
申请日：1996-10-09
申请人： Takashi Nishihara , Shuji Shiraishi , Osamu Yamamoto , Osamu Yano
发明人： Takashi Nishihara , Shuji Shiraishi , Osamu Yamamoto , Osamu Yano
CPC分类号： B60C23/061
摘要： A reduction in pressure in tires fitted to follower wheels and driven wheels is precisely determined irrespective of slipping states of the driven wheels. A driven wheel slip rate calculating means M1 calculates driven wheel slip rates .lambda.L and .lambda.R. A driven wheel torque calculating means M2 calculates a driven wheel torque TQDW. A driven wheel slip rate estimating means M4 estimates a characteristic of variation in driven wheel slip rates .lambda.L and .lambda.R relative to the variation in driven wheel torque TQDW using a least squares method. A rotation-number ratio calculating means M5 calculates ratios CVWL and CVWR of the numbers of rotations of the follower wheels to the numbers of rotations of the driven wheels in a state in which the driven wheel torque in a graph of the variation characteristic is equal to zero. A tire pressure-reduction determining means M6 then determines a reduction in pressure from a difference in diameter between the follower wheels and the driven wheels by comparing the rotation-number ratios CVWL and CVWR with a reference value.
摘要翻译： 无论滑动状态如何，精确地确定安装在从动轮和从动轮上的轮胎的压力降低。 从动轮滑移率计算装置M1计算从动轮滑移率λL和λR。从动轮转矩计算装置M2计算从动轮转矩TQDW。 从动轮滑移率估计装置M4使用最小二乘法估计从动轮滑移率λL和λR相对于从动轮转矩TQDW的变化的变化的特性。 旋转数比计算装置M5在变化特性的曲线图中的从动轮转矩等于等于的状态下计算从动轮的转数相对于从动轮的转数的比率CVWL和CVWR 零。 轮胎压力降低确定装置M6然后通过将旋转数比CVWL和CVWR与参考值进行比较来确定从从动轮和从动轮之间的直径差减小的压力。
-
公开(公告)号：US5575350A
公开(公告)日：1996-11-19
申请号：US405241
申请日：1995-03-17
申请人： Hironobu Kiryu , Ryoji Mori , Takashi Nishihara , Shuji Shiraishi
发明人： Hironobu Kiryu , Ryoji Mori , Takashi Nishihara , Shuji Shiraishi
CPC分类号： B60K28/16 , B60W2510/1005 , B60W2720/106
摘要： A system is provided to prevent suspension judder from being generated at the start of a vehicle which includes a traction control system. If the starting of the vehicle is detected based on driving-wheel speeds RL and RR, a shift position and an accelerator opening degree .theta.th1, an initial torque TQ2 and a delay time are map-searched based on the accelerator opening degree .theta.th1 and a steering angle .theta.st. The driving force for driven wheels is limited to the initial torque TQ2, until a delay time from the starting of the vehicle has elapsed, to prevent the generation of suspension judder. When the delay time has elapsed, an accelerating increment torque TQ3 is map-searched based on the accelerator opening degree .theta.th1 and the steering angle .theta.st, and is added to the initial torque TQ2, thereby ensuring the accelerating performance of the vehicle.
摘要翻译： 提供一种系统以防止在包括牵引力控制系统的车辆的起动时产生悬架抖动。 如果基于驾驶轮速度RL和RR检测到车辆的起动，则基于加速器开度θth1和/或者基于加速器开度θth1对起始位置和加速器开度θth1，初始扭矩TQ2和延迟时间进行地图搜索， 转向角θst。 驱动轮的驱动力限于初始转矩TQ2，直到从车辆启动起的延迟时间过去，以防止产生悬架抖动。 当延迟时间已经过去时，基于加速器开度θth1和转向角θst对加速增量扭矩TQ3进行地图搜索，并将其加到初始转矩TQ2上，从而确保车辆的加速性能。
-
-
-
-
-
-
-
-
-
搜索结果
44 条记录 (耗时 0.026 秒)
