专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5869753A System for estimating the road surface friction 失效
标题翻译：用于估计路面摩擦的系统
公开(公告)号：US5869753A
公开(公告)日：1999-02-09
申请号：US697233
申请日：1996-08-21
申请人： Nobuyoshi Asanuma , Kiyoshi Wakamatsu , Yoshimitsu Akuta , Manabu Ikegaya , Nobuo Sugitani , Yukihiro Fujiwara
发明人： Nobuyoshi Asanuma , Kiyoshi Wakamatsu , Yoshimitsu Akuta , Manabu Ikegaya , Nobuo Sugitani , Yukihiro Fujiwara
IPC分类号： B60K28/16 , B60T8/172 , B62D7/15 , G01M15/00
CPC分类号： B62D7/159 , B60T8/172 , B60K28/16 , B60T2210/12
摘要： The road friction is determined from the deviation of the estimated yaw rate under a standard condition from the actually measured yaw rate. The system for determining the road friction includes a parameter identification unit which determines a parameter of a variation term defined in the transfer function of the model for the vehicle response. The variation term may consist of a zero-th order or a first-order transfer function which would not cause any large computation load, and may not depend on the vehicle speed. The determined road friction may be used for controlling the rear wheel steering angle of a four wheel steering vehicle.
摘要翻译：道路摩擦是根据标准状况下的估计横摆角速度与实际测量的横摆角速度的偏差来确定的。用于确定道路摩擦的系统包括参数识别单元，其确定在车辆响应的模型的传递函数中定义的变化项的参数。变化项可以由零级或一阶传递函数组成，其不会导致任何大的计算负载，并且可以不依赖于车辆速度。确定的道路摩擦可以用于控制四轮转向车辆的后轮转向角。

2. 发明授权

US5890082A Adaptive front and rear wheel steering system 失效
标题翻译：自适应前轮和后轮转向系统
公开(公告)号：US5890082A
公开(公告)日：1999-03-30
申请号：US720083
申请日：1996-09-27
申请人： Manabu Ikegaya , Yoshimitsu Akuta , Kiyoshi Wakamatsu
发明人： Manabu Ikegaya , Yoshimitsu Akuta , Kiyoshi Wakamatsu
IPC分类号： B62D6/00 , B62D7/14 , B62D7/15
CPC分类号： B62D7/159 , B62D6/00
摘要： In a front and rear wheel steering system for steering rear wheels of a vehicle at a certain ratio to front wheels of the vehicle, the rear wheel steering angle is determined according to the steering input and/or the operating conditions of the vehicle, additionally, taking into account the kind of the particular tires that are being used. In particular, it is advantageous to distinguish between normal tires and studless tires as they demonstrate significantly different properties. The kind of tires can be identified either by computing the frictional coefficient of the road surface or by a manual switch. Thus, the handling of the vehicle can be kept unchanged without regard to the kind of the tires that are being used.
摘要翻译：在前轮和后轮转向系统中，用于以与所述车辆的前轮一定比例的方式转向车辆的后轮，根据所述车辆的转向输入和/或所述操作条件来确定所述后轮转向角，考虑到正在使用的特定轮胎的种类。特别地，区分普通轮胎和无钉轮胎是有利的，因为它们表现出显着不同的性质。可以通过计算路面的摩擦系数或通过手动开关来识别轮胎的种类。因此，车辆的处理可以保持不变，而不考虑正在使用的轮胎的种类。

3. 发明授权

US5627754A Method for controlling a front and rear wheel steering vehicle 失效
标题翻译：用于控制前轮和后轮转向车的方法
公开(公告)号：US5627754A
公开(公告)日：1997-05-06
申请号：US398138
申请日：1995-03-03
申请人： Nobuyoshi Asanuma , Kiyoshi Wakamatsu , Manabu Ikegaya
发明人： Nobuyoshi Asanuma , Kiyoshi Wakamatsu , Manabu Ikegaya
IPC分类号： B62D6/00 , B62D7/14 , B62D7/15
CPC分类号： B62D7/159
摘要： To the end of ensuring a brisk maneuverability of a front and rear wheel steering vehicle without causing any unstable behavior of the vehicle, the rear wheels are steered in an opposite phase relationship to the front wheels to offset an under-steer tendency of the vehicle when a lateral acceleration acting on the vehicle is between a first prescribed value and a second prescribed value higher than the first prescribed value, and the vehicle would otherwise demonstrate an under-steer tendency, and in a same phase relationship to the front wheels to prevent an excessive slip angle from developing in the rear wheels when the detected lateral acceleration is greater than the second prescribed value, and the slip angle of the rear wheels would otherwise develop an excessive slip angle. In other words, the rear wheels are steered in an opposite phase relationship to the front wheels so long as a lateral acceleration acting on the vehicle is within a range which would not give rise to any excessive slip angle of the rear wheels.
摘要翻译：为了确保前轮和后轮转向车辆的轻松的机动性而不会引起车辆的不稳定行为，尾轮以与前轮相反的相位关系转向，以抵消车辆的转向倾向，作用在车辆上的横向加速度处于高于第一规定值的第一规定值和第二规定值之间，并且车辆否则将表现出转向倾向，并且以与前轮相同的相位关系来防止当检测到的横向加速度大于第二规定值时，在后轮中产生过大的滑移角，否则后轮的滑移角度将产生过大的滑移角。换句话说，只要作用在车辆上的横向加速度在不会产生后轮的任何过大的滑移角的范围内，则后轮与前轮成相反的相位关系。

4. 发明授权

US5448481A Control system for a front and rear wheel steering vehicle 失效
标题翻译：前轮和后轮转向车的控制系统
公开(公告)号：US5448481A
公开(公告)日：1995-09-05
申请号：US161139
申请日：1993-12-02
申请人： Nobuyoshi Asanuma , Kiyoshi Wakamatsu , Manabu Ikegaya
发明人： Nobuyoshi Asanuma , Kiyoshi Wakamatsu , Manabu Ikegaya
IPC分类号： B62D6/00 , B62D7/14 , B62D7/15 , B62D101/00 , B62D111/00 , B62D113/00 , B62D137/00 , B62D5/04
CPC分类号： B62D7/159 , B60T2260/022
摘要： A steering angle of rear wheels are steered according to a deviation between an ideal yaw rate response and an actual yaw rate response to the given steering wheel input. By combining feedback control and feed forward control, immunity from external disturbances and lateral stability can be both ensured each at a high level over the entire range of vehicle speed. By appropriately selecting the transfer function of the control system, it is possible to achieve desired responsiveness and stability. Furthermore, the vehicle response in the range where the cornering force of tires tends to saturate can be improved, and it is therefore possible to neutralize the steering property over the entire vehicle speed range.
摘要翻译：根据对给定的方向盘输入的理想横摆率响应和实际横摆率响应之间的偏差，后轮的转向角被转向。通过组合反馈控制和前馈控制，可以在车速的整个范围内以高水平确保每个外部扰动和横向稳定性的抗扰度。通过适当地选择控制系统的传递功能，可以实现期望的响应性和稳定性。此外，可以提高在轮胎的转弯力饱和的范围内的车辆响应，因此可以在整个车速范围内中和转向性。

5. 发明授权

US5576957A Control system for a front and rear wheel steering vehicle 失效
标题翻译：前轮和后轮转向车的控制系统
公开(公告)号：US5576957A
公开(公告)日：1996-11-19
申请号：US396543
申请日：1995-03-01
申请人： Nobuyoshi Asanuma , Kiyoshi Wakamatsu , Manabu Ikegaya
发明人： Nobuyoshi Asanuma , Kiyoshi Wakamatsu , Manabu Ikegaya
IPC分类号： B62D6/00 , B62D7/14 , B62D7/15 , B62D101/00 , B62D111/00 , B62D113/00 , B62D137/00 , B62D5/04
CPC分类号： B62D7/159
摘要： In a control system for a front and rear wheel steering vehicle which steers the rear wheels so as to cancel a deviation of an actual yaw rate from a standard yaw rate which can be computed from the steering input, the vehicle speed and other parameters, there is provided a feature to automatically and manually cancel the yaw rate feedback control. If the actual yaw rate continues to exceed a threshold level for more than a certain time period, the yaw rate feedback is canceled gradually so as not to cause any abrupt change in the handling of the vehicle. Alternatively, if the vehicle operator wishes to operate the vehicle under extreme conditions, he may manually cancel the yaw rate feedback control so as to avoid undesirable interference or conflict between the manual steering effort and the yaw rate feedback control action. Thus, the maneuverability of the vehicle under extreme conditions can be improved without losing the benefits of the yaw rate feedback control.
摘要翻译：在用于前轮和后轮转向车辆的控制系统中，其转向后轮以抵消实际横摆率与可从转向输入，车速和其他参数计算的标准横摆角速度的偏差，那里提供了自动和手动地消除偏航率反馈控制的特征。如果实际横摆比率持续超过阈值水平超过一定时间段，则横摆速度反馈被逐渐取消，从而不会引起车辆处理的突然改变。或者，如果车辆操作者希望在极端条件下操作车辆，则他可以手动地取消偏航率反馈控制，以避免手动转向力和横摆率反馈控制动作之间的不期望的干扰或冲突。因此，可以在极端条件下提高车辆的机动性，而不会失去偏航率反馈控制的好处。

6. 发明授权

US5521820A Method for controlling a steering system 失效
标题翻译：用于控制转向系统的方法
公开(公告)号：US5521820A
公开(公告)日：1996-05-28
申请号：US147825
申请日：1993-11-04
申请人： Kiyoshi Wakamatsu , Yukihiro Fujiwara
发明人： Kiyoshi Wakamatsu , Yukihiro Fujiwara
IPC分类号： B62D6/00 , B62D5/04 , B62D7/14 , B62D7/15 , B62D101/00 , B62D111/00 , B62D113/00 , B62D117/00 , B62D137/00 , B62D5/00
CPC分类号： B62D5/046 , B62D7/159
摘要： An actuator for effecting a steering action is controlled by a feed-forward variable based on a target steering angle, a state feedback control variable based on an actual steering angle, and an integral control variable given as a sum of an integrated value of a deviation between the target steering angle and the actual steering angle, and an integrated value cancelling variable based on the target steering angle. The integral control variable is disregarded when the detected load is greater than the threshold value. Typically, the integrated value cancelling variable consists of a feedback state variable based on the actual steering angle. Thus, by disregarding the integral control variable in a low speed condition that involves a high load condition but does not require a high tracking capability, the need for the output capacity of the actuator can be substantially reduced without creating substantially any ill effect. This is particularly advantageous when applied to a rear wheel steering system of a front and rear wheel steering vehicle using an electric motor for its actuator.
摘要翻译：用于实现转向动作的致动器由基于目标转向角的前馈变量，基于实际转向角的状态反馈控制变量和作为偏差积分值之和给出的积分控制变量来控制在目标转向角和实际转向角之间，以及基于目标转向角的积分值抵消变量。当检测到的负载大于阈值时，积分控制变量被忽略。通常，积分值消除变量由基于实际转向角的反馈状态变量组成。因此，通过忽略涉及高负载状态但不需要高跟踪能力的低速条件下的积分控制变量，可以显着地减少对致动器的输出容量的需求，而不产生实质上的任何不良影响。当使用其用于其致动器的电动机的前轮和后轮转向车辆的后轮转向系统时，这是特别有利的。

7. 发明授权

US06640178B2 Process for estimating drive torque in vehicle 失效
标题翻译：估算车辆驾驶扭矩的过程
公开(公告)号：US06640178B2
公开(公告)日：2003-10-28
申请号：US09987704
申请日：2001-11-15
申请人： Kiyoshi Wakamatsu , Ryuji Asada , Akihiro Iwazaki , Shinji Okuma , Tatsuhiro Tomari , Masakatsu Hori
发明人： Kiyoshi Wakamatsu , Ryuji Asada , Akihiro Iwazaki , Shinji Okuma , Tatsuhiro Tomari , Masakatsu Hori
IPC分类号： B60K4112
CPC分类号： B60W10/06 , B60K17/20 , B60K23/04 , B60W10/11 , B60W30/1819 , B60W30/188 , B60W2510/105 , B60W2520/10 , B60W2520/125 , B60W2530/10 , B60W2530/20 , B60W2710/105 , F02D2200/1004 , F16H2059/467 , Y10T477/675
摘要： In a vehicle in which a torque generated in an engine is transmitted to driven wheels through a torque converter and an automatic transmission, when a speed ratio e in the torque converter is equal to or larger than a predetermined value (e.g., 0.85), and the accuracy of estimating a capacity &tgr; of the torque converter is low, an estimated engine torque Ti is multiplied by a torque ratio k of the torque converter to estimate a drive torque Td. When the speed ratio e in the torque converter is smaller than the predetermined value, and a response lag is produced in the transmission of the engine torque, a drive torque Td is estimated from an engine rotational sped Ne and the speed ratio e in the torque converter. During shifting of the automatic transmission, a drive torque Td is estimated from a wheel speed V. Thus, a correct drive torque can be estimated.
摘要翻译：在发动机中产生的扭矩通过变矩器和自动变速器传递到从动轮的车辆中，当变矩器中的变速比e等于或大于预定值（例如0.85）时，以及估计变矩器的电容tau的精度低，推定发动机转矩Ti与变矩器的转矩比k相乘以推定转矩Td。当变矩器中的速比e小于预定值时，在发动机扭矩的传递中产生响应滞后，根据发动机转速Ne和扭矩的变速比e推定驱动转矩Td 转换器。在自动变速器的换挡期间，从车轮速度V估计驱动转矩Td。因此，可以估计正确的驱动转矩。

8. 发明申请

US20110307142A1 VEHICLE MOTION CONTROL SYSTEM 有权
标题翻译：车辆运动控制系统
公开(公告)号：US20110307142A1
公开(公告)日：2011-12-15
申请号：US13203424
申请日：2010-03-05
申请人： Takashi Yanagi , Kiyoshi Wakamatsu , Takayuki Seki
发明人： Takashi Yanagi , Kiyoshi Wakamatsu , Takayuki Seki
IPC分类号： G06F7/00
CPC分类号： B60T8/1755 , B60T8/885 , B60T2260/08 , B60T2270/402 , B60W50/029 , B62D6/00
摘要： Provided is a vehicle motion control system that comprises a plurality of vehicle behavior control units that are controlled in a mutually coordinated manner, and is configured to operate as designed even when one of the vehicle motion control units should fail. If a RTC-ECU (61) has ceased a control action thereof owing to a failure thereof, a VSA-ECU (31) retains the last received coordination control signal from the RTC-ECU in EEPROM (37) so that the VSA-ECU (31) is enabled to continue the coordinated control according to the retained coordination control signal. At the same time, the VSA-ECU (31) transmits the coordination control signal retained in the EEPROM onto a CAN so that the transmitted coordination control signal may be used by other ECUS of other vehicle behavior control units such as an ATTS-ECU (41) and a STG-ECU (51). In this manner, the behavior of the vehicle may be optimized by the coordination control of the VSA unit and other vehicle behavior control units.
摘要翻译：提供一种车辆运动控制系统，其包括以相互协调的方式控制的多个车辆行为控制单元，并且被构造成即使当车辆运动控制单元之一失败时也被设计成运行。如果RTC-ECU（61）由于故障而停止其控制动作，则VSA-ECU（31）将来自RTC-ECU的最后接收的协调控制信号保持在EEPROM（37）中，使得VSA-ECU （31）能够根据所保留的协调控制信号继续协调控制。同时，VSA-ECU（31）将保存在EEPROM中的协调控制信号发送到CAN上，使得发送的协调控制信号可以被其他车辆行为控制单元（例如ATTS-ECU（其它） 41）和STG-ECU（51）。以这种方式，可以通过VSA单元和其他车辆行为控制单元的协调控制来优化车辆的行为。

9. 发明授权

US06543595B2 Driving force distribution device for vehicle 失效
标题翻译：车辆驱动力分配装置
公开(公告)号：US06543595B2
公开(公告)日：2003-04-08
申请号：US09818974
申请日：2001-03-27
申请人： Shinji Okuma , Ryuji Asada , Akihiro Iwazaki , Takashi Kuribayashi , Tatsuhiro Tomari , Masakatsu Hori , Kazuhiro Wada , Kiyoshi Wakamatsu
发明人： Shinji Okuma , Ryuji Asada , Akihiro Iwazaki , Takashi Kuribayashi , Tatsuhiro Tomari , Masakatsu Hori , Kazuhiro Wada , Kiyoshi Wakamatsu
IPC分类号： F16D1900
CPC分类号： F16D27/14 , B60K23/04 , F16H48/30
摘要： A driving force distribution device which controls the engagement forces of electromagnetic clutches and which govern the torque distribution between the driving wheels of a vehicle by calculating a target magnetic flux density and converting the same into a target excitation current. Since the relationship between the target magnetic flux density and the target excitation current changes according to a decrease in the air gaps accompanying wear of the frictional engagement members of the electromagnetic clutches, a relationship between the magnetic flux density and the excitation current is determined by applying current to the electromagnetic clutches when torque distribution control is not being carried out such as when the system is started, and the target excitation current is calculated from the target magnetic flux density based on the determined relationship. Since there is no need to detect dynamic changes in the magnetic flux density, inexpensive devices can be used as magnetic flux density detecting means so contributing to a reduction in the cost.
摘要翻译：一种驱动力分配装置，其通过计算目标磁通密度并将其转换为目标励磁电流来控制电磁离合器的接合力并且控制车辆的驱动轮之间的转矩分布。由于目标磁通密度和目标激励电流之间的关系随着伴随电磁离合器的摩擦接合构件的磨损的气隙的减小而变化，所以磁通密度和激励电流之间的关系通过应用基于所确定的关系，根据目标磁通密度计算当系统启动时不进行转矩分配控制时的电磁离合器的电流。由于不需要检测磁通密度的动态变化，所以可以使用便宜的装置作为磁通密度检测装置，从而有助于降低成本。

10. 发明授权

US08761995B2 Vehicle motion control system 有权
标题翻译：车辆运动控制系统
公开(公告)号：US08761995B2
公开(公告)日：2014-06-24
申请号：US13203424
申请日：2010-03-05
申请人： Takashi Yanagi , Kiyoshi Wakamatsu , Takayuki Seki
发明人： Takashi Yanagi , Kiyoshi Wakamatsu , Takayuki Seki
IPC分类号： B60W10/00 , G06F7/00 , B60W10/18 , B60W10/12 , B60W10/20
CPC分类号： B60T8/1755 , B60T8/885 , B60T2260/08 , B60T2270/402 , B60W50/029 , B62D6/00
摘要： Provided is a vehicle motion control system that comprises a plurality of vehicle behavior control units that are controlled in a mutually coordinated manner, and is configured to operate as designed even when one of the vehicle motion control units should fail. If a RTC-ECU (61) has ceased a control action thereof owing to a failure thereof, a VSA-ECU (31) retains the last received coordination control signal from the RTC-ECU in EEPROM (37) so that the VSA-ECU (31) is enabled to continue the coordinated control according to the retained coordination control signal. At the same time, the VSA-ECU (31) transmits the coordination control signal retained in the EEPROM onto a CAN so that the transmitted coordination control signal may be used by other ECUS of other vehicle behavior control units such as an ATTS-ECU (41) and a STG-ECU (51). In this manner, the behavior of the vehicle may be optimized by the coordination control of the VSA unit and other vehicle behavior control units.
摘要翻译：提供一种车辆运动控制系统，其包括以相互协调的方式控制的多个车辆行为控制单元，并且被构造成即使当车辆运动控制单元之一失败时也被设计成运行。如果RTC-ECU（61）由于故障而停止其控制动作，则VSA-ECU（31）将来自RTC-ECU的最后接收的协调控制信号保持在EEPROM（37）中，使得VSA-ECU （31）能够根据所保留的协调控制信号继续协调控制。同时，VSA-ECU（31）将保存在EEPROM中的协调控制信号发送到CAN上，使得发送的协调控制信号可以被其他车辆行为控制单元（例如ATTS-ECU（其它） 41）和STG-ECU（51）。以这种方式，可以通过VSA单元和其他车辆行为控制单元的协调控制来优化车辆的行为。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式