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1. 发明专利

JP2009168715A Vehicle weight estimation system 有权
标题翻译：车辆重量估算系统
公开(公告)号：JP2009168715A
公开(公告)日：2009-07-30
申请号：JP2008009108
申请日：2008-01-18
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MIYAMOTO SHOGO , SEKIGUCHI HIDEKI
IPC分类号： G01G19/03
摘要： PROBLEM TO BE SOLVED: To provide a vehicle weight estimation system capable of ensuring the accuracy of vehicle weight estimation even under the conditions of easily causing weight estimation errors or even when the vehicle driving force or acceleration fluctuates.
SOLUTION: The vehicle weight estimation system calculates the weight of a vehicle from the running state of a driving source of the vehicle and a change in speed of the vehicle, creates a frequency distribution from the plurality of calculated vehicle weight values, periodically estimates the vehicle weight from the frequency distribution, and updates the estimated weight value.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供即使在容易引起重量估计误差的情况下，甚至当车辆驱动力或加速度波动时，也能够确保车辆重量的精度的车辆重量估计系统。解决方案：车辆重量估计系统根据车辆的行驶源的行驶状态和车辆的速度来计算车辆的重量，从多个计算的车辆重量值周期性地产生频率分布根据频率分布估计车辆重量，并且更新估计的重量值。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2005125921A Power transmission for vehicle, and vehicle-driving electric machinery system using it 有权
标题翻译：车用电力传动及使用其的车辆驱动电机系统
公开(公告)号：JP2005125921A
公开(公告)日：2005-05-19
申请号：JP2003363261
申请日：2003-10-23
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MIYAMOTO SHIYOUGO , HAMAI KYUGO , TANAKA YOSHIKAZU , SEKIGUCHI HIDEKI
IPC分类号： B60K6/26 , B60K6/36 , B60K6/405 , B60K6/44 , B60K6/46 , B60K6/485 , B60K6/52 , B60K6/54 , B60K17/04 , B60K17/12 , B60K17/356 , B60L11/14 , F16H48/08 , B60K6/04
CPC分类号： Y02T10/7077
摘要： PROBLEM TO BE SOLVED: To provide a compact power transmission for a vehicle capable of reducing the radial load on a bearing and a bearing supporting part, and a vehicle-driving electric machinery system using it. SOLUTION: The power transmission comprises a motor 10, a reduction gear unit 12 for reducing the rotation of the motor 10, and a differential gear unit 14 for distributing the power decelerated by the reduction gear unit 12 to left and right wheels. The axis of a second shaft 32 of the reduction gear unit 12 is arranged in the same direction of the tangential force P1 of a gear on the driven side when the vehicle is advanced which is generated at an engagement point between a gear 33 provided on an output shaft of the motor 10 and a gear 34 provided on a rotary shaft of the reduction gear 12 with respect to the line to connect the axis of an output shaft of the motor to the axis of a first shaft 31 of the reduction gear 12. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够减小轴承和轴承支撑部件上的径向载荷的车辆的小型动力传递装置，以及使用该轴承的车辆驱动电机系统。电动变速器包括电动机10，用于减小电动机10的旋转的减速机单元12以及用于将由减速齿轮单元12减速的动力分配给左右车轮的差动齿轮单元14。减速齿轮单元12的第二轴32的轴线在车辆前进时与驱动侧的齿轮的切向力P1相同的方向配置，该轴在从动侧上设置的齿轮33 马达10的输出轴以及设置在减速齿轮12的旋转轴上的齿轮34相对于线将马达的输出轴的轴线连接到减速齿轮12的第一轴31的轴线。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2007049825A Travel controller and electric travel control system for electric vehicle 有权
标题翻译：电动车辆旅行控制器和电动行驶控制系统
公开(公告)号：JP2007049825A
公开(公告)日：2007-02-22
申请号：JP2005231862
申请日：2005-08-10
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SEKIGUCHI HIDEKI , HAMAI KYUGO
IPC分类号： B60L15/20 , B60K6/44 , B60K6/52 , B60L11/14 , B60W10/06 , B60W10/08 , B60W20/00 , F02D29/02
CPC分类号： B60L11/18 , B60L3/10 , Y02T10/7005 , Y02T10/7258
摘要： PROBLEM TO BE SOLVED: To provide a travel controller and an electric travel control system for an electric vehicle capable of controlling outputs of a motor, so that a road friction coefficient μ always becomes the maximum value when any of tires slips during traveling such as driving, braking and turning of the vehicle, and obtaining the maximum driving and braking forces of any of the tires. SOLUTION: This travel controller and the electric travel control system for the electric vehicle are used for the electric vehicle which controls electric drive units 8 and 9 of having the motor and drives and brakes wheels 6 and 7. Upon detecting a wheel spin, ESC-CU31 changes the converging slip ratio according to road conditions by executing power running and regenerative control. Then ESC-CU31 calculates the road friction coefficient μ based on electric currents of the motor, and thus ESC-CU31 performs power running and regeneration control on the motor so that the calculated road friction coefficient μ becomes around the maximum value. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够控制电动机的输出的电动车辆的行驶控制器和电动行驶控制系统，使得当行驶中的任何一个轮胎滑行时，道路摩擦系数μ总是成为最大值例如车辆的驾驶，制动和车削，并且获得任何轮胎的最大驾驶和制动力。
解决方案：该行驶控制器和电动车辆的电动行驶控制系统用于控制具有电动机和驱动和制动轮6和7的电动驱动单元8和9的电动车辆。在检测到车轮旋转 ESC-CU31通过执行动力运行和再生控制，根据道路状况改变收敛滑移率。然后ESC-CU31根据电动机的电流计算路面摩擦系数μ，ESC-CU31对电动机进行动力运行和再生控制，使计算出的道路摩擦系数μ成为最大值。版权所有（C）2007，JPO＆INPIT

4. 发明专利

JP2005253167A Vehicle driving unit and electric four-wheel drive vehicle using it 审中-公开
标题翻译：车辆驾驶单元和电动四轮驱动车辆使用它
公开(公告)号：JP2005253167A
公开(公告)日：2005-09-15
申请号：JP2004058560
申请日：2004-03-03
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SHIMIZU HISAYA , SEKIGUCHI HIDEKI , MIYAMOTO SHIYOUGO , HAMAI KYUGO , YAMAMOTO TATSUYUKI
IPC分类号： B60K6/26 , B60K6/36 , B60K6/38 , B60K6/40 , B60K6/405 , B60K6/44 , B60K6/52 , B60K6/54 , B60K7/00 , B60K17/04 , B60K17/16 , B60K17/346 , B60K17/356 , B60K23/08 , B60L11/14 , B60W10/02 , F16H48/08 , F16H57/02 , F16H57/04 , H02K7/116 , H02K9/02 , H02K9/19 , H02K11/00 , B60K6/04
CPC分类号： B60W20/00 , B60K1/00 , B60K6/405 , B60K6/52 , B60K23/08 , B60K2001/001 , B60K2001/003 , B60K2001/006 , B60L11/12 , B60L11/1807 , B60L2240/425 , B60L2240/525 , B60L2260/28 , B60W10/02 , B60W10/08 , B60W10/30 , B60W2300/18 , B60Y2306/03 , F16H57/0415 , F16H57/0476 , H02K7/116 , H02K9/19 , H02K11/33 , Y02T10/6265 , Y02T10/641 , Y02T10/642 , Y02T10/7005 , Y02T10/7077
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive vehicle driving unit which can efficiently cool a motor or an inverter.
SOLUTION: This vehicle driving unit is equipped with a motor 1 which drives wheels 22R and 22L, an inverter 2 which drives the motor 1, a revolution sensor 1a which detects the revolution of the motor 1, gear mechanisms 3A and 3B which transmit the output of the motor 1 to wheels, an oil pump 6 which circulates oil, being driven by the motor 1, and cases 7, 8 and 9 which accommodate the motor 1, the inverter 2, the revolution sensor 1a, the gear mechanisms 3A and 3B, and the oil pump 6. The motor 1, the inverter 2, the revolution sensor 1a, the gear mechanisms 3A and 3B, the oil pump 6, and the cases 7, 8 and 9 are structuralized integrally.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够有效地冷却电动机或逆变器的便宜的车辆驱动单元。解决方案：该车辆驱动单元配备有驱动轮22R和22L的马达1，驱动马达1的反相器2，检测马达1的转动的旋转传感器1a，齿轮机构3A和3B的齿轮机构3A和3B 将电动机1的输出传递到车轮，由电动机1驱动的油循环的油泵6和容纳电动机1的壳体7,8,9，变频器2，转速传感器1a，齿轮机构电动机1，逆变器2，转速传感器1a，齿轮机构3A，3B，油泵6以及壳体7,8,9构成一体。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2005125920A Output transmission for vehicle, and vehicle-driving electric machinery system using it 有权
标题翻译：车用输出变速器，使用车辆的车辆驱动电机系统
公开(公告)号：JP2005125920A
公开(公告)日：2005-05-19
申请号：JP2003363260
申请日：2003-10-23
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HAMAI KYUGO , SEKIGUCHI HIDEKI , MIYAMOTO SHIYOUGO , TANAKA YOSHIKAZU
IPC分类号： B60K6/26 , B60K6/36 , B60K6/40 , B60K6/44 , B60K6/52 , B60K17/04 , B60K17/16 , B60K17/356 , B60L11/14 , B60T1/06 , F16H48/08 , F16H57/037 , F16H57/038 , F16H57/039 , B60K6/04 , F16H57/02
CPC分类号： F16H2048/426 , Y02T10/623 , Y02T10/6243 , Y02T10/6265 , Y02T10/7077
摘要： PROBLEM TO BE SOLVED: To provide a compact output transmission for a vehicle having high torque transmission efficiency of a reduction gear mechanism and high reduction gear ratio, and a vehicle-driving electric machinery system using it. SOLUTION: The output transmission comprises a motor 10, a reduction gear unit 12 for decelerating the rotation of the motor 10, and a differential gear unit 14 for distributing the output decelerated by the reduction gear unit 12 to left and right wheels. The reduction gear unit 12 is a reduction gear mechanism including a plurality of gears mounted on a shaft which is rotatably held by a housing in a fixed position. The reduction gear unit 12 and the differential gear unit 14 are arranged within an area facing an axial end face of the motor 10. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种具有减速机构的高扭矩传递效率和高减速比的车辆的紧凑型输出传动装置以及使用它的车辆驱动电机系统。解决方案：输出变速器包括马达10，用于减速马达10的旋转的减速机单元12，以及用于将由减速齿轮单元12减速的输出分配给左右轮的差动齿轮单元14。减速齿轮单元12是减速齿轮机构，其包括安装在轴上的多个齿轮，该轴可旋转地由壳体保持在固定位置。减速齿轮单元12和差动齿轮单元14配置在面向电动机10的轴向端面的区域内。（C）版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2009220603A Brake control device of vehicle 有权
标题翻译：车辆制动控制装置
公开(公告)号：JP2009220603A
公开(公告)日：2009-10-01
申请号：JP2008064021
申请日：2008-03-13
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SEKIGUCHI HIDEKI , OSAWA TOSHIYA , WATANABE SATORU , MURAKAMI TOMOYUKI , SATO AKIHIRO , HIGUMA MOTOHIRO
IPC分类号： B60T13/68 , B60T8/00 , B60T13/14 , B60T17/22
CPC分类号： B60T8/442 , B60T8/4827 , B60T8/4872 , F01L1/3442 , F01L13/0026 , F02D13/023 , F02D13/04 , F02D35/023 , F02D41/0005 , F02D41/008 , F02D41/1497 , F02D41/221 , F02D41/3029 , F02D2250/18 , F02D2250/41 , Y02T10/42 , Y10T477/878
摘要： PROBLEM TO BE SOLVED: To provide a brake control device of a vehicle can supply required liquid pressure to a wheel cylinder while suppressing intake negative pressure of an engine. SOLUTION: A brake oil pressure circuit includes a master vacuum actuator, which doubles a brake operation force using intake negative pressure of an engine controlled to target intake negative pressure by an electronically controlled throttle, a master cylinder, which generates master cylinder pressure by the operation force doubled by the master vacuum actuator, and a pump, which increases brake liquid pressure. In this circuit, a threshold value is set smaller as the negative value (booster negative value) of a negative chamber of the master vacuum actuator gets closer to the atmospheric pressure. When a required braking force at that time exceeds the threshold value, braking by the master cylinder pressure is changed over to that by pump-up pressure. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供车辆的制动控制装置，可以在抑制发动机的进气负压的同时向轮缸供给所需的液压。解决方案：制动油压回路包括主真空致动器，其使用通过电子控制节流阀控制到目标进气负压的发动机的进气负压将制动器操作力加倍，主缸，其产生主缸压力通过主真空致动器加倍的操作力和增加制动液压力的泵。在该电路中，主真空致动器的负室的负值（助力器负值）越接近大气压，阈值越小。当此时所需的制动力超过阈值时，通过主缸压力的制动被改变为泵送压力的制动力。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2009057003A Towing determination device for vehicle 审中-公开
标题翻译：用于车辆的确定设备
公开(公告)号：JP2009057003A
公开(公告)日：2009-03-19
申请号：JP2007227790
申请日：2007-09-03
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SEKIGUCHI HIDEKI , MIYAMOTO SHIYOUGO
IPC分类号： B60R1/00
摘要： PROBLEM TO BE SOLVED: To provide a towing determination device for a vehicle capable of easily determining a towing (connection of a vehicle to be towed) state promptly in starting the vehicle.
SOLUTION: Based on an image behind a vehicle shot by an in-vehicle camera 1, the connection of a vehicle to be towed is determined.
COPYRIGHT: (C)2009,JPO&INPIT

8. 发明专利

JP2006325367A COOLING APPARATUS FOR VEHICLE 审中-公开
公开(公告)号：JP2006325367A
公开(公告)日：2006-11-30
申请号：JP2005147941
申请日：2005-05-20
申请人： HITACHI LTD
发明人： SEKIGUCHI HIDEKI , MIYAMOTO SHIYOUGO
IPC分类号： H02K9/19 , B60K6/48 , B60W10/08 , B60W20/00
摘要： PROBLEM TO BE SOLVED: To provide a cooling apparatus for a vehicle that can reduce the drive loss of an oil pump by reducing a discharging oil quantity of the oil pump. SOLUTION: The cooling apparatus for the vehicle cools a motor generator MG by using the oil of a transmission TM that reduces the rotation of the motor generator MG and transmits it. The apparatus also comprises the cooling circuit 12 of the motor generator MG, the lubrication cooling circuit 14 of the transmission TM, and the bypass circuit 15 that reaches the lubrication cooling circuit 14 from the cooling circuit 12. An oil passage switch valve 6 connects the cooling circuit 12 and the lubrication cooling circuit 14 via the bypass circuit 15 in series, and switches the cooling circuit 12 and the lubrication cooling circuit 14 so as to connect them in parallel. COPYRIGHT: (C)2007,JPO&INPIT

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