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1. 发明授权

US08229640B2 Drive force transmission apparatus, control method of drive force transmission apparatus, and limited slip differential 有权
标题翻译：驱动力传递装置，驱动力传动装置的控制方法和限滑差速器
公开(公告)号：US08229640B2
公开(公告)日：2012-07-24
申请号：US12408851
申请日：2009-03-23
申请人： Ryouhei Shigeta , Akihiro Ohno , Hiroyuki Ando , Masaki Mita , Tomohiro Nozu
发明人： Ryouhei Shigeta , Akihiro Ohno , Hiroyuki Ando , Masaki Mita , Tomohiro Nozu
IPC分类号： B60T8/24 , G05D3/00
CPC分类号： B60K23/0808
摘要： When determining that a vehicle is not skidding, the ECU carries out tight corner control if vehicle speed is smaller than the upper limit value of the vehicle speed range corresponding to the starting state of the vehicle and the steering wheel turning angle of a steering wheel is greater than or equal to the minimum value of the steering wheel turning angle at which the tight corner braking phenomenon may occur. When determining that the vehicle is skidding, the ECU inhibits the tight corner control even if the vehicle speed is smaller than the upper limit value and the steering wheel turning angle is greater than or equal to the minimum value of the steering wheel turning angle at which the tight corner braking phenomenon may occur.
摘要翻译：当判定车辆不滑动时，如果车速小于对应于车辆的起始状态的车速范围的上限值，则ECU执行紧密转角控制，并且方向盘的方向盘转向角度为大于或等于可能发生紧密拐角制动现象的方向盘转向角度的最小值。当确定车辆打滑时，即使车速小于上限值，并且方向盘转动角度大于或等于方向盘转向角度的最小值，ECU也可以抑制紧密的转角控制可能会发生紧密的拐角制动现象。

2. 发明授权

US07487028B2 Device and method for evaluating low-μ road and power distribution control device for four-wheel drive vehicles 有权
标题翻译：用于评估四轮驱动车辆的低mu路和配电控制装置的装置和方法
公开(公告)号：US07487028B2
公开(公告)日：2009-02-03
申请号：US10846960
申请日：2004-05-13
申请人： Ryouhei Shigeta , Tsuyoshi Murakami
发明人： Ryouhei Shigeta , Tsuyoshi Murakami
IPC分类号： B60T7/12 , G06F17/00 , G06F7/00
CPC分类号： B60T8/172 , B60K23/08 , B60K28/16 , B60T2210/12 , B60W2520/105 , B60W2550/148
摘要： A power distribution control device 42 calculates a low-μ information magnitude, associated with the friction coefficient of the road surface, based on the slip rate and the vehicle acceleration operation magnitude. If the low-μ information magnitude exceeds an addition evaluation threshold, the power distribution control device 42 adds the low-μ information magnitude. If the low-μ information magnitude does not exceed the addition evaluation threshold, the power distribution control device 42 subtracts a constant K from a counter. The power distribution control device 42 makes evaluates a road to have a low-μ when the counter exceeds a low-μ evaluation threshold.
摘要翻译：配电控制装置42基于滑移率和车辆加速度运算量，计算与路面的摩擦系数相关联的低μ信息量。如果低μ信息幅度超过附加评估阈值，则配电控制装置42将低μ信息幅度相加。如果低μ信息幅度不超过附加评估阈值，则配电控制装置42从计数器中减去常数K。当计数器超过低μ评估阈值时，配电控制装置42使道路评估为低mu。

3. 发明申请

US20050004741A1 Device and method for evaluating low-mu road and power distribution control device for four-wheel drive vehicles 有权
标题翻译：用于评估四轮驱动车辆的低mu路和配电控制装置的装置和方法
公开(公告)号：US20050004741A1
公开(公告)日：2005-01-06
申请号：US10846960
申请日：2004-05-13
申请人： Ryouhei Shigeta , Tsuyoshi Murakami
发明人： Ryouhei Shigeta , Tsuyoshi Murakami
IPC分类号： G01N19/02 , B60K17/346 , B60K17/348 , B60K23/08 , B60K28/16 , B60R16/02 , B60T8/172 , B60W40/10 , B60T8/72
CPC分类号： B60T8/172 , B60K23/08 , B60K28/16 , B60T2210/12 , B60W2520/105 , B60W2550/148
摘要： A power distribution control device 42 calculates a low-μ information magnitude, associated with the friction coefficient of the road surface, based on the slip rate and the vehicle acceleration operation magnitude. If the low-μ information magnitude exceeds an addition evaluation threshold, the power distribution control device 42 adds the low-μ information magnitude. If the low-μ information magnitude does not exceed the addition evaluation threshold, the power distribution control device 42 subtracts a constant K from a counter. The power distribution control device 42 makes evaluates a road to have a low-μ when the counter exceeds a low-μ evaluation threshold.
摘要翻译：配电控制装置42基于滑移率和车辆加速度运算量，计算与路面的摩擦系数相关联的低μ信息量。如果低μ信息幅度超过附加评估阈值，则配电控制装置42将低μ信息幅度相加。如果低μ信息幅度不超过附加评估阈值，则配电控制装置42从计数器中减去常数K。当计数器超过低μ评估阈值时，配电控制装置42使道路评估为低mu。

4. 发明授权

US06823252B2 Drive power distribution control method and device for four-wheel drive vehicle 有权
标题翻译：驱动四轮驱动车辆的配电控制方法和装置
公开(公告)号：US06823252B2
公开(公告)日：2004-11-23
申请号：US10464656
申请日：2003-06-19
申请人： Isao Ito , Tsuyoshi Murakami , Ryouhei Shigeta , Hisaaki Wakao , Yasushi Yamada
发明人： Isao Ito , Tsuyoshi Murakami , Ryouhei Shigeta , Hisaaki Wakao , Yasushi Yamada
IPC分类号： B60K1734
CPC分类号： B60K23/0808 , B60K17/35 , B60W2520/263
摘要： A four-wheel drive vehicle is provided with a drive power transmission device for controlling the connection degree of a front wheel axle driven by an engine with a rear wheel axle. A drive power distribution control device is responsive to a vehicle speed, a rotational difference between front wheels driven by the front wheel axle and rear wheels driven by the rear wheel axle, a throttle opening degree signal and the like and controls the drive power transmission device. The drive power distribution control device judges whether the vehicle is beginning to start or not and at the starting of the vehicle, controls the transmission rate of the drive power transmission device in dependence on the state or manner in which the vehicle is beginning to start.
摘要翻译：四轮驱动车辆设置有用于控制由具有后轮轴的发动机驱动的前轮轴的连接度的驱动动力传递装置。驱动配电控制装置响应于车速，由前轮轴驱动的前轮与由后轮轴驱动的后轮之间的旋转差，节气门开度信号等，并且控制驱动力传递装置。驱动配电控制装置判断车辆是否开始起动，并且在车辆起动时，根据车辆开始起动的状态或方式来控制驱动动力传递装置的传递速度。

5. 发明授权

US07581612B2 Drive force distribution device and method for distributing drive force 有权
标题翻译：驱动力分配装置及驱动力分配方法
公开(公告)号：US07581612B2
公开(公告)日：2009-09-01
申请号：US11496513
申请日：2006-08-01
申请人： Ryouhei Shigeta , Tomoaki Kato , Akihiro Ohno , Tsuyoshi Murakami , Yasushi Yamada , Tadashi Yoshioka , Shunzo Tanaka
发明人： Ryouhei Shigeta , Tomoaki Kato , Akihiro Ohno , Tsuyoshi Murakami , Yasushi Yamada , Tadashi Yoshioka , Shunzo Tanaka
IPC分类号： B60K28/08 , F16H59/64
CPC分类号： B60W30/1843 , B60W2510/0291 , Y10T477/653 , Y10T477/75
摘要： An IG-off-timer measures the time t_off from when an engine is stopped, or an ignition is turned off. An ECU sequentially memorizes an estimated temperature of each of heat generating portions as a memorized temperature. Immediately after the engine is re-started, the ECU sets an initial value of the estimated temperature of each heat generating portion in such a manner that the initial value reflects a temperature drop of the heat generating portion in the deactivation period of the engine. The temperature of the heat generating portion is thus accurately estimated even after re-starting of the engine. The heat generating portions are thus appropriately protected.
摘要翻译： IG关闭计时器测量发动机停止时或从点火关闭的时间t_off。 ECU依次存储每个发热部分的估计温度作为记忆温度。在发动机再起动之后，ECU立即以发动机的停用期间的初始值反映发热部的温度下降的方式设定各发热部的估计温度的初始值。因此即使在发动机重新起动之后也能够精确地估计发热部分的温度。因此，发热部被适当地保护。

6. 发明授权

US07048084B2 Power distribution control apparatus of four-wheel drive vehicle 有权
标题翻译：四轮驱动车配电控制装置
公开(公告)号：US07048084B2
公开(公告)日：2006-05-23
申请号：US10885611
申请日：2004-07-08
申请人： Ryouhei Shigeta , Tsuyoshi Murakami , Hisao Fumoto , Yutaka Hirokane
发明人： Ryouhei Shigeta , Tsuyoshi Murakami , Hisao Fumoto , Yutaka Hirokane
IPC分类号： B60K17/35
CPC分类号： B60K23/0808 , B60K17/35 , B60W2510/0604 , B60W2520/10
摘要： A CPU computes a throttle opening degree increasing speed Vθh and a steering wheel angular velocity Vθ based on a throttle opening degree θh and a steering wheel angle θ. Based on the throttle increasing speed Vθh and the steering wheel angular velocity Vθ, the CPU selects one of a first drive mode and a second drive mode. The CPU controls the power transmission ratio of a power transmitting device according to the selected drive mode. Therefore, the power transmission ratio of the power transmitting device is properly controlled in accordance with the degree of intention for acceleration of the driver, which is computed based on the throttle increasing speed Vθh, and the turning speed of the steering wheel, which is computed based on the steering wheel angular velocity Vθ. Therefore, the drive mode is properly switched in accordance with the driving state of a four-wheel drive vehicle.
摘要翻译： CPU基于节气门开度和方向盘角度θ计算节气门开度增加速度Vthetah和方向盘角速度Vthta。基于节气门增加速度Vthetah和方向盘角速度Vtheta，CPU选择第一驱动模式和第二驱动模式中的一个。 CPU根据选择的驱动模式来控制动力传递装置的动力传动比。因此，根据基于节气门增加速度Vthetah计算的驾驶员的加速意图和计算出的方向盘的转动速度，适当地控制动力传递装置的动力传动比基于方向盘角速度Vta。因此，根据四轮驱动车辆的行驶状态适当地切换驱动模式。

7. 发明申请

US20050029035A1 Power distribution control apparatus of four-wheel drive vehicle 有权
标题翻译：四轮驱动车配电控制装置
公开(公告)号：US20050029035A1
公开(公告)日：2005-02-10
申请号：US10885611
申请日：2004-07-08
申请人： Ryouhei Shigeta , Tsuyoshi Murakami , Hisao Fumoto , Yutaka Hirokane
发明人： Ryouhei Shigeta , Tsuyoshi Murakami , Hisao Fumoto , Yutaka Hirokane
IPC分类号： B60K17/348 , B60K17/35 , B60K23/08 , B60K17/344
CPC分类号： B60K23/0808 , B60K17/35 , B60W2510/0604 , B60W2520/10
摘要： A CPU computes a throttle opening degree increasing speed Vθh and a steering wheel angular velocity Vθ based on a throttle opening degree θh and a steering wheel angle θ. Based on the throttle increasing speed Vθh and the steering wheel angular velocity Vθ, the CPU selects one of a first drive mode and a second drive mode. The CPU controls the power transmission ratio of a power transmitting device according to the selected drive mode. Therefore, the power transmission ratio of the power transmitting device is properly controlled in accordance with the degree of intention for acceleration of the driver, which is computed based on the throttle increasing speed Vθh, and the turning speed of the steering wheel, which is computed based on the steering wheel angular velocity Vθ. Therefore, the drive mode is properly switched in accordance with the driving state of a four-wheel drive vehicle.
摘要翻译： CPU基于节气门开度和方向盘角度θ计算节气门开度增加速度Vthetah和方向盘角速度Vthta。基于节气门增加速度Vthetah和方向盘角速度Vtheta，CPU选择第一驱动模式和第二驱动模式中的一个。 CPU根据选择的驱动模式来控制动力传递装置的动力传动比。因此，根据基于节气门增加速度Vthetah计算的驾驶员的加速意图和计算出的方向盘的转动速度，适当地控制动力传递装置的动力传动比基于方向盘角速度Vta。因此，根据四轮驱动车辆的行驶状态适当地切换驱动模式。

8. 发明授权

US07553257B2 Drive force distribution device and method for distributing drive force 有权
标题翻译：驱动力分配装置及驱动力分配方法
公开(公告)号：US07553257B2
公开(公告)日：2009-06-30
申请号：US11496515
申请日：2006-08-01
申请人： Ryouhei Shigeta , Tomoaki Kato , Akihiro Ohno , Tsuyoshi Murakami , Tadashi Yoshioka , Shunzo Tanaka
发明人： Ryouhei Shigeta , Tomoaki Kato , Akihiro Ohno , Tsuyoshi Murakami , Tadashi Yoshioka , Shunzo Tanaka
IPC分类号： F16H59/64 , B60W10/02 , G06F7/00
CPC分类号： B60W30/1843 , B60W2510/0291 , Y10T477/653 , Y10T477/75
摘要： An ECU estimates the temperatures of the heat generating portions provided in a drive force transmission system, or a transaxle, a rear differential, and a torque coupling, in correspondence with not only the rotational speed (the differential rotational speed) of each heat generating portion and the torque transmission rate of the torque coupling but also the outside temperature detected by an outside temperature sensor. If the estimated temperature of any of the heat generating portions exceeds a respective predetermined temperature, the ECU controls operation of the torque coupling to suppress overheating of the heat generating portion. That is, the temperature of each heat generating portion is accurately detected through a simplified structure and overheating of the heat generating portion is effectively suppressed.
摘要翻译： ECU根据不同于每个发热部分的转速（差速旋转速度）来估计设置在驱动力传递系统或变速驱动桥，后差速器和转矩联轴器中的发热部分的温度，以及扭矩耦合的转矩传递速率，以及由外部温度传感器检测到的外部温度。如果任何发热部分的估计温度超过相应的预定温度，则ECU控制扭矩耦合的操作以抑制发热部分的过热。也就是说，通过简化的结构精确地检测每个发热部分的温度，并且有效地抑制了发热部分的过热。

9. 发明申请

US20090248268A1 DRIVE FORCE TRANSMISSION APPARATUS, CONTROL METHOD OF DRIVE FORCE TRANSMISSION APPARATUS, AND LIMITED SLIP DIFFERENTIAL 有权
标题翻译：驱动力传动装置，驱动力传动装置的控制方法和有限滑动差速器
公开(公告)号：US20090248268A1
公开(公告)日：2009-10-01
申请号：US12408851
申请日：2009-03-23
申请人： Ryouhei SHIGETA , Akihiro Ohno , Hiroyuki Ando , Masaki Mita , Tomohiro Nozu
发明人： Ryouhei SHIGETA , Akihiro Ohno , Hiroyuki Ando , Masaki Mita , Tomohiro Nozu
IPC分类号： B60T8/24 , G06F19/00
CPC分类号： B60K23/0808
摘要： When determining that a vehicle is not skidding, the ECU carries out tight corner control if vehicle speed is smaller than the upper limit value of the vehicle speed range corresponding to the starting state of the vehicle and the steering wheel turning angle of a steering wheel is greater than or equal to the minimum value of the steering wheel turning angle at which the tight corner braking phenomenon may occur. When determining that the vehicle is skidding, the ECU inhibits the tight corner control even if the vehicle speed is smaller than the upper limit value and the steering wheel turning angle is greater than or equal to the minimum value of the steering wheel turning angle at which the tight corner braking phenomenon may occur.
摘要翻译：当判定车辆不滑动时，如果车速小于对应于车辆的起始状态的车速范围的上限值，则ECU执行紧密转角控制，并且方向盘的方向盘转向角度为大于或等于可能发生紧密拐角制动现象的方向盘转向角度的最小值。当确定车辆打滑时，即使车速小于上限值，并且方向盘转动角度大于或等于方向盘转向角度的最小值，ECU也可以抑制紧密的转角控制可能会发生紧密的拐角制动现象。

10. 发明申请

US20070032339A1 Drive force distribution device and method for distributing drive force 有权
标题翻译：驱动力分配装置及驱动力分配方法
公开(公告)号：US20070032339A1
公开(公告)日：2007-02-08
申请号：US11496515
申请日：2006-08-01
申请人： Ryouhei Shigeta , Tomoaki Kato , Akihiro Ohno , Tsuyoshi Murakami , Tadashi Yoshioka , Shunzo Tanaka
发明人： Ryouhei Shigeta , Tomoaki Kato , Akihiro Ohno , Tsuyoshi Murakami , Tadashi Yoshioka , Shunzo Tanaka
IPC分类号： F16H59/00
CPC分类号： B60W30/1843 , B60W2510/0291 , Y10T477/653 , Y10T477/75
摘要： An ECU estimates the temperatures of the heat generating portions provided in a drive force transmission system, or a transaxle, a rear differential, and a torque coupling, in correspondence with not only the rotational speed (the differential rotational speed) of each heat generating portion and the torque transmission rate of the torque coupling but also the outside temperature detected by an outside temperature sensor. If the estimated temperature of any of the heat generating portions exceeds a respective predetermined temperature, the ECU controls operation of the torque coupling to suppress overheating of the heat generating portion. That is, the temperature of each heat generating portion is accurately detected through a simplified structure and overheating of the heat generating portion is effectively suppressed.
摘要翻译： ECU根据不同于每个发热部分的转速（差速旋转速度）来估计设置在驱动力传递系统或变速驱动桥，后差速器和转矩联轴器中的发热部分的温度，以及扭矩耦合的转矩传递速率，以及由外部温度传感器检测到的外部温度。如果任何发热部分的估计温度超过相应的预定温度，则ECU控制扭矩耦合的操作以抑制发热部分的过热。也就是说，通过简化的结构精确地检测每个发热部分的温度，并且有效地抑制了发热部分的过热。

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