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1. 发明申请

US20030079954A1 Power distribution control apparatus for four-wheel drive vehicle and a method for controlling the apparatus 有权
标题翻译：四轮驱动车辆用配电控制装置及其控制方法
公开(公告)号：US20030079954A1
公开(公告)日：2003-05-01
申请号：US10284338
申请日：2002-10-31
申请人： TOYODA KOKI KABUSHIKI KAISHA
发明人： Tsuyoshi Murakami , Akihiro Ohno
IPC分类号： B60K017/344
CPC分类号： B60K23/0808 , B60K17/35 , B60W2510/0241 , B60W2510/0291 , B60W2520/26 , B60W2520/28 , B60W2710/027 , F16D48/064 , F16D2500/1022 , F16D2500/10431 , F16D2500/30405 , F16D2500/3115 , F16D2500/3168 , F16D2500/50858 , F16D2500/5106 , F16D2500/525 , F16D2500/702 , F16D2500/70276 , F16D2500/70663
摘要： A power distribution control apparatus determines a command value that corresponds to the driving state of a four-wheel drive vehicle. The vehicle includes a pair of front wheels and a pair of rear wheels, and a coupling device that changes the power distribution to the front wheels and the rear wheels. The control apparatus detects the differential rotation speed between the average rotation speed of the front wheels and the average rotation speed of the rear wheels. The control apparatus estimates the exothermic energy generated in the coupling device based on the product of the differential rotation speed and the command value. The control apparatus determines an optimum drive mode for the four-wheel drive vehicle based on the estimated exothermic energy and for selecting map data corresponding to the determined drive mode. The control apparatus determines the command value that corresponds to the driving state by using the map data.
摘要翻译：配电控制装置确定与四轮驱动车辆的行驶状态对应的指令值。车辆包括一对前轮和一对后轮，以及将前轮和后轮的动力分配改变的联接装置。控制装置检测前轮的平均转速与后轮的平均转速之间的差速旋转速度。控制装置基于差速旋转速度与指令值的乘积来估计耦合装置中产生的放热能量。控制装置基于估计的放热能量确定用于四轮驱动车辆的最佳驱动模式，并且用于选择与所确定的驱动模式相对应的地图数据。控制装置通过使用地图数据来确定与驾驶状态对应的命令值。

2. 发明申请

US20040211611A1 Control device for front-and-rear wheel drive vehicle 有权
标题翻译：前轮和后轮驱动车辆的控制装置
公开(公告)号：US20040211611A1
公开(公告)日：2004-10-28
申请号：US10828277
申请日：2004-04-21
申请人： TOYODA KOKI KABUSHIKI KAISHA
发明人： Akihiro Ohno , Yasushi Yamada
IPC分类号： B60K017/356
CPC分类号： B60K17/344 , B60K23/0808
摘要： A control device is provided for electrically controlling a drive power transmission device arranged on a driving power transmission path of a front-and rear wheel drive vehicle thereby to switch the drive mode of the vehicle selectively to either of a two-wheel drive mode and a four-wheel drive mode. The control device inhibits the drive mode from being switched to that commanded to be switched to when the vehicle is traveling at a slower speed than a predetermined speed and when the rotational speed difference between front and rear wheels is larger than a predetermined value. Further, the control device gradually decreases a present torque which the driving power transmission device is transmitting before the switching of the drive mode, to a target torque which the drive power transmission device is to transmit after the switching of the drive mode, when the difference between the present and target torques is more than another predetermined valve at the time of the switching of the drive mode. Thus, the driving power transmission path can be prevented from generating the drive torque beyond a tolerable valve as well as making a noise due to the instantaneous switching of the drive mode during the traveling of the vehicle, and the vehicle can be prevented from abruptly changing its motion by the cause of the instantaneous drive mode switching.
摘要翻译：提供一种控制装置，用于电动控制布置在前后驱动车辆的驱动动力传递路径上的驱动力传递装置，从而选择性地将车辆的驱动模式切换到两轮驱动模式和四轮驱动模式。当车辆以比预定速度慢的行驶速度以及前轮和后轮之间的转速差大于预定值时，控制装置禁止驱动模式切换到命令切换到的方式。此外，当驱动模式切换时，控制装置将驱动动力传递装置正在传送的当前扭矩逐渐降低到在驱动模式切换之后驱动动力传递装置将要传送的目标转矩，当差异当前和目标转矩之间在驱动模式切换时多于另一预定阀。因此，可以防止驱动力传递路径产生超过容许阀的驱动转矩，并且由于在车辆行驶期间的驱动模式的瞬时切换而产生噪声，并且可以防止车辆突然变化其运动原因是瞬时驱动模式切换。

3. 发明申请

US20030227270A1 Drive system for automotive vehicle of front-and-rear wheel drive type 失效
标题翻译：前后轮驱动型车用驱动系统
公开(公告)号：US20030227270A1
公开(公告)日：2003-12-11
申请号：US10422697
申请日：2003-04-25
申请人： TOYODA KOKI KABUSHIKI KAISHA
发明人： Seitoku Kubo , Tadanobu Kumagai , Toshifumi Sakai , Naoyuki Sakai , Akihiro Ohno
IPC分类号： H02P003/00 , H02P005/04
CPC分类号： B60K6/44 , B60K6/52 , B60K6/547 , B60K17/356 , B60K23/08 , B60K23/0808 , B60K28/16 , B60L2240/486 , B60W2510/1005 , B60W2510/244 , B60W2520/10 , B60W2550/148 , Y02T10/623 , Y02T10/6265 , Y10S903/916 , Y10S903/919 , Y10S903/945
摘要： A drive system for an automotive vehicle of the front-and-rear wheel drive type, comprising a primary drive mechanism for drive of a set of front road wheels and an ancillary drive mechanism for drive of a set of rear roar wheels, wherein the front road wheels are driven by operation of the primary drive mechanism at a two-wheel drive mode and wherein the front and rear road wheels are driven by operation of both the primary and ancillary drive mechanisms at a four-wheel drive mode. In the drive system, a drive power applied to the primary road wheels is restricted to a predetermined value when the vehicle is driven by the primary and ancillary drive mechanisms at the front-and-rear wheel drive mode.
摘要翻译：一种用于前轮和后轮驱动型的机动车辆的驱动系统，包括用于驱动一组前轮的主驱动机构和用于驱动一组后舵轮的辅助驱动机构，其中前以两轮驱动模式操作主驱动机构来驱动车轮，并且其中前轮和后轮由四轮驱动模式下的主辅助驱动机构的操作而驱动。在驱动系统中，当前轮和后轮驱动模式下的主辅助驱动机构驱动车辆时，施加到主车轮的驱动力被限制在预定值。

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