公开(公告)号：US20160107540A1

公开(公告)日：2016-04-21

申请号：US14978511

申请日：2015-12-22

申请人： NTN CORPORATION

发明人： Yingjie ZHANG ,  Koichi OKADA ,  Naoyuki UCHIYAMA

IPC分类号： B60L15/20

CPC分类号： B60L15/20 ,  B60K7/0007 ,  B60K28/16 ,  B60K2007/0038 ,  B60K2007/0092 ,  B60L7/14 ,  B60L7/18 ,  B60L15/2009 ,  B60L2220/12 ,  B60L2220/14 ,  B60L2220/44 ,  B60L2220/46 ,  B60L2240/421 ,  B60L2240/423 ,  B60W10/08 ,  B60W2510/082 ,  Y02T10/645 ,  Y02T10/7275

摘要： A slip control device for an electric vehicle which accurately determines slippage occurrence with only a rotation angle sensor for motor rotation control and perform rapid control to eliminate the slippage, is provided. A threshold calculation module (21) calculates a normal angular acceleration of a motor depending on a manipulation amount of an accelerator to obtain a threshold, and an angular acceleration calculator (22) differentiates a detection value from a rotation angle sensor (3a) twice to calculate an angular acceleration. A slip determination (23) determines whether a drive wheel (7) has slipped, and a torque limitation (25) limits a torque when a slippage has occurred. The determination (23) determines the angular acceleration and a threshold. The determination (23) counts a number of consecutive times it is determined that the threshold is exceeded, and determines that a slippage has occurred, if the number of consecutive times has reached a set value. The limitation (25) limits a torque developed by a motor unit for a drive wheel laterally opposite to the drive wheel determined as having slipped.

摘要翻译： 提供一种电动车辆的滑动控制装置，其仅利用用于电动机旋转控制的旋转角度传感器精确地确定滑动发生，并且执行快速控制以消除滑动。 阈值计算模块（21）根据加速器的操作量来计算马达的正常角加速度以获得阈值，并且角加速度计算器（22）将检测值与旋转角度传感器（3a）进行两次比较，将 计算角加速度。 打滑确定（23）确定驱动轮（7）是否已经滑动，并且当发生滑动时转矩限制（25）限制转矩。 确定（23）确定角加速度和阈值。 如果连续次数达到设定值，则确定（23）连续次数确定超过了阈值，并确定发生滑动。 限制（25）限制由驱动轮横向相对于驱动轮确定为滑动的驱动轮由马达单元产生的扭矩。

公开(公告)号：US20170005599A1

公开(公告)日：2017-01-05

申请号：US15267777

申请日：2016-09-16

申请人： NTN CORPORATION

发明人： Hiroyuki YAMADA ,  Takeshi KANDA ,  Koichi OKADA

IPC分类号： H02P5/74 ,  B60K17/356 ,  H02P27/08 ,  B60L15/00 ,  H02K9/00 ,  H02K11/33 ,  B60L15/08 ,  B60K7/00

CPC分类号： H02P5/74 ,  B60K7/0007 ,  B60K17/356 ,  B60K2007/0038 ,  B60K2007/0092 ,  B60L11/00 ,  B60L15/007 ,  B60L15/08 ,  B60L2210/14 ,  B60L2210/44 ,  B60L2220/44 ,  B60L2220/46 ,  B60Y2400/61 ,  H02K9/00 ,  H02K11/33 ,  H02M3/1584 ,  H02M7/003 ,  H02M2001/008 ,  H02P5/00 ,  H02P27/08 ,  Y02T10/645 ,  Y02T10/646

摘要： A driving device for motors for drive wheels of a vehicle includes a plurality of in-wheel motor assemblies and motor drivers. The motor drivers include a smoothing circuit, an inverter unit to convert the direct current power, inputted through the smoothing circuit, into a three phase alternating current power, an inverter control unit for controlling the inverter unit, and a cooler for cooling the inverter unit. The plurality of the motor drivers are disposed within a single common casing and the plurality of the motor drivers share the smoothing circuit. The inverter control unit of the plurality of the motor drivers is of a control type capable of driving the driving element of the inverter unit according to the PWM scheme and the plurality of the motor drivers have equal cycles of PWM relative to each other and are configured to displace ON and OFF timings of the driving element.

摘要翻译： 用于车辆的驱动轮的电动机的驱动装置包括多个轮内电动机组件和电动机驱动器。 电动机驱动器包括平滑电路，将通过平滑电路输入的直流电力转换成三相交流电力的逆变器单元，用于控制逆变器单元的逆变器控制单元和用于冷却逆变器单元的冷却器 。 多个电动机驱动器设置在单个公共壳体内，并且多个电动机驱动器共享平滑电路。 多个电动机驱动器的逆变器控制单元是能够根据PWM方案驱动逆变器单元的驱动元件的控制类型，并且多个电动机驱动器相对于彼此具有相等的PWM周期，并且被配置 以移动驱动元件的ON和OFF定时。