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. 发明专利

JP2005080420A Detector for fault in electric power steering device 有权
标题翻译：电动转向装置故障检测器
公开(公告)号：JP2005080420A
公开(公告)日：2005-03-24
申请号：JP2003308462
申请日：2003-09-01
申请人： Honda Motor Co Ltd , Showa Corp , 本田技研工業株式会社 , 株式会社ショーワ
发明人： KAWASHIMA MITSUNORI , YUDA MASATO , ISHIGAKI HIROAKI
IPC分类号： B62D6/00 , B62D5/04 , B62D119/00 , H02P7/29
摘要： PROBLEM TO BE SOLVED: To make it possible to detect on-fault in the fail-safe relay of an H bridge circuit that drives the motor of an electric power steering device.
SOLUTION: If the fail-safe relay 47 is in on-fault when a first switching element 46a is turned on with a power relay 43 and the fail-safe relay 47 kept off, the voltage VMP of a second output terminal TM2, which should be otherwise held at pull-up voltage, is lowered to 0 V equal to the voltage of a first output terminal TM1 short-circuited to a low-voltage terminal TL. If the fail-safe relay 47 is in on-fault when a second switching element 46b is turned on with the power relay 43 and the fail-safe relay 47 kept off, the voltage VMN of the first output terminal TM1, which should be otherwise held at pull-up voltage, is lowered to 0 V equal to the voltage of a second output terminal TM2 short-circuited to the low-voltage terminal TL. Thus, any on-fault in the fail-safe relay 47 can be detected without fail.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：使得可以检测驱动电动助力转向装置的电动机的H桥电路的故障安全继电器中的故障。解决方案：如果故障安全继电器47在第一开关元件46a接通电源继电器43并且故障安全继电器47断开时处于故障状态，则第二输出端子TM2的电压VMP 应该保持在上拉电压，被降低到等于与低电压端子TL短路的第一输出端子TM1的电压的0V。如果在功率继电器43和故障安全继电器47断开时第二开关元件46b接通时故障安全继电器47处于故障状态，则第一输出端子TM1的电压VMN应当以其他方式保持在上拉电压下降到等于与低电压端子TL短路的第二输出端子TM2的电压的0V。因此，能够无故障地检测故障安全继电器47中的故障。版权所有（C）2005，JPO＆NCIPI

2. 发明专利

JP2005073375A Device for detecting fault of electric power steering device 有权
标题翻译：用于检测电力转向装置故障的装置
公开(公告)号：JP2005073375A
公开(公告)日：2005-03-17
申请号：JP2003299460
申请日：2003-08-25
申请人： Honda Motor Co Ltd , Showa Corp , 本田技研工業株式会社 , 株式会社ショーワ
发明人： KAWASHIMA MITSUNORI , YUDA MASATO , ISHIGAKI HIROAKI
IPC分类号： B62D5/04 , H02P5/00 , H02P7/00 , H02P7/06 , H02P29/00
CPC分类号： B62D5/0487
摘要： PROBLEM TO BE SOLVED: To surely detect the ON fault of the switching circuit of the H bridge of an electric power steering device.
SOLUTION: If any of first to fourth switching elements 46a-46d of the H bridge circuit 41 has an ON fault, a high-voltage terminal TH and a low-voltage terminal TL short-circuit during a drive of a motor M, and a real current detected by a shunt resistor 42 is increased, and the real current hunts by the feedback control to bring this real current into conformity with a target current. So, this fault detector accumulates times, when the real current became larger than its upper limit value within a specified time and times when it became its lower limit value, and decides the occurrence of hunting, in short, the ON fault of the switching element, based on both accumulated times. Hereby, even in case the hunting real current within the ripple range of the real current at normal times, this discriminates between the ripple of the real current at normal times and the ripple of the real current at ON fault, whereby this can detect the ON fault of the switching element without fail.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：确保检测电动助力转向装置的H桥的开关电路的导通故障。解决方案：如果H桥电路41的第一至第四开关元件46a-46d中的任一个具有导通故障，则在马达M的驱动期间高压端子TH和低压端子TL短路并且由分流电阻器42检测到的实际电流增加，并且实际电流通过反馈控制寻找以使该实际电流与目标电流一致。因此，该故障检测器累积时间，当实际电流在规定时间内变得大于其上限值，并且成为其下限值时，并且决定发生跳闸，简而言之，开关元件的导通故障，基于积累的时间。因此，即使在正常时间内实际电流的纹波范围内捕获实际电流的情况下，也会区分正常时的实际电流的纹波和导通故障时的实际电流的纹波，从而可以检测到ON 开关元件故障无故障。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2005067512A Neutral point renewing method of steering torque detecting means 有权
标题翻译：转向转矩检测手段的中点改造方法
公开(公告)号：JP2005067512A
公开(公告)日：2005-03-17
申请号：JP2003302628
申请日：2003-08-27
申请人： Honda Motor Co Ltd , Showa Corp , 本田技研工業株式会社 , 株式会社ショーワ
发明人： YUDA MASATO , KAWASHIMA MITSUNORI , ISHIGAKI HIROAKI
IPC分类号： B62D6/00 , B62D5/04
摘要： PROBLEM TO BE SOLVED: To prevent improper neutral point renewing of a steering torque detecting means. SOLUTION: During a steering wheel is not operated, when a neutral point renewing work that stores an output signal ADVT3 of the steering torque detecting means read at each predetermined time as a neutral point signal is carried out, a past output signal TVLVT3(n) of the steering torque detecting means stored in advance and a present output signal TV3N0 of the steering torque detecting means are read. When a deviation between both output signals DVTCT is not less than a threshold value #RVTCT, renewing of the neutral point signal is prohibited. Therefore, in case that an operator touches the steering wheel during reading the output signal of the steering torque detecting means and the output signal of the steering torque detecting means indicates an abnormal value, the neutral point signal is prevented from being improperly renewed, and the detection accuracy of the steering torque detecting means can be ensured. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了防止转向转矩检测装置的不正确的中性点更新。解决方案：在不操作方向盘的情况下，执行在每个预定时间存储转向转矩检测装置的输出信号ADVT3的中性点更新工作作为中性点信号时，过去的输出信号TVLVT3 预先存储的转向转矩检测装置的（n）和转向转矩检测装置的当前输出信号TV3N0被读取。当两个输出信号DVTCT之间的偏差不小于阈值#RVTCT时，禁止更新中性点信号。因此，在操作者在读取转向转矩检测单元的输出信号时接触方向盘，转向转矩检测单元的输出信号表示异常值的情况下，防止了中性点信号不正确地更新，可以确保转向转矩检测装置的检测精度。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2005067380A Breakdown detection method for electric power steering device 有权
标题翻译：电动转向装置的断路检测方法
公开(公告)号：JP2005067380A
公开(公告)日：2005-03-17
申请号：JP2003299461
申请日：2003-08-25
申请人： Honda Motor Co Ltd , Showa Corp , 本田技研工業株式会社 , 株式会社ショーワ
发明人： KAWASHIMA MITSUNORI , YUDA MASATO , ISHIGAKI HIROAKI
IPC分类号： B62D6/00 , B62D5/04 , B62D119/00
摘要： PROBLEM TO BE SOLVED: To detect breakdown of an H bridge circuit while avoiding unnecessary operation of a motor of an electric power steering device.
SOLUTION: In order to carry out breakdown detection of first to fourth switching elements 46a-46d of the H bridge circuit 41, the first and second switching elements 46a, 46b are firstly and simultaneously turned ON at a first step to confirm that every third and fourth switching elements 46c, 46d is not ON-damaged. The third and fourth switching elements 46c, 46d are simultaneously turned ON at a subsequent second step to confirm that every first and second switching elements is not ON-damaged. Thereafter, the first to fourth switching elements 46a to 46d are turned ON in this order at the third step to detect whether or not they are OFF-damaged. Thereby, even when a power relay 43 and a fail-safe relay 47 are interlocked and turned ON, the unnecessary operation of the motor M at the third step can be certainly prevented.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了检测H桥电路的故障，同时避免电动转向装置的电动机的不必要的操作。解决方案：为了进行H桥电路41的第一至第四开关元件46a-46d的击穿检测，第一和第二开关元件46a，46b首先同时在第一步骤接通，以确认每个第三和第四开关元件46c，46d没有被ON损坏。第三和第四开关元件46c，46d在随后的第二步骤同时导通，以确认每个第一和第二开关元件都没有被ON损坏。此后，在第三步骤中，第一至第四开关元件46a至46d依次接通，以检测它们是否被损坏。因此，即使电力继电器43和故障安全继电器47互锁并接通，也可以可靠地防止电动机M在第三步骤的不必要的操作。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2005075309A Vehicular steering control device 有权
标题翻译：车辆转向控制装置
公开(公告)号：JP2005075309A
公开(公告)日：2005-03-24
申请号：JP2003311920
申请日：2003-09-03
申请人： Honda Motor Co Ltd , Showa Corp , 本田技研工業株式会社 , 株式会社ショーワ
发明人： KAWASHIMA MITSUNORI , YUDA MASATO , ISHIGAKI HIROAKI
IPC分类号： B62D6/00 , B62D5/04 , B62D101/00 , B62D119/00
摘要： PROBLEM TO BE SOLVED: To provide a vehicular steering control device capable of suppressing complication of a device configuration, adequately assisting the steering of a driver, and detecting abnormality of a current detector to detect the energization current of a motor to drive a steering mechanism with excellent accuracy.
SOLUTION: First abnormality detection process to detect whether or not the motor current IM input from a current detection circuit to a main CPU detects is in an abnormal state based on the difference between the target current ITN and the motor current IM is executed (Steps S01 to Step S06). If the abnormality is determined by the first abnormality detection, the duty of the pulse output to a bridge circuit from an FET drive/boosting circuit is regulated to be not more than the predetermined value (Step S07). Second abnormality detection process to detect whether or not the motor current IM is in an abnormal state is performed (Step S08 to Step S11), and if the abnormality is determined by the second abnormality detection, the assist operation by the motor is stopped.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种车辆转向控制装置，其能够抑制装置结构的复杂化，足以辅助驾驶员的转向，并且检测电流检测器的异常以检测电动机的通电电流以驱动转向机构精度高。
解决方案：执行基于目标电流ITN与电动机电流IM之间的差异来检测从电流检测电路到主CPU检测到的电动机电流IM是否检测到的第一异常检测处理处于异常状态（步骤S01〜步骤S06）。如果通过第一异常检测确定异常，则从FET驱动/升压电路输出到桥式电路的脉冲的占空比被调节为不大于预定值（步骤S07）。执行用于检测电动机电流IM是否处于异常状态的第二异常检测处理（步骤S08〜步骤S11），如果通过第二异常检测判定异常，则停止电动机的辅助动作。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2005075160A Current detection device of electric power steering device 有权
标题翻译：电力转向装置的电流检测装置
公开(公告)号：JP2005075160A
公开(公告)日：2005-03-24
申请号：JP2003308463
申请日：2003-09-01
申请人： Honda Motor Co Ltd , Showa Corp , 本田技研工業株式会社 , 株式会社ショーワ
发明人： KAWASHIMA MITSUNORI , YUDA MASATO , ISHIGAKI HIROAKI
IPC分类号： B62D6/00 , B62D5/04 , B62D119/00 , B62D137/00
摘要： PROBLEM TO BE SOLVED: To calculate the offset voltage of a shunt resistance of a motor current detection means of an electric power steering device with excellent accuracy.
SOLUTION: When calculating the offset voltage IMOFS of the shunt resistance to detect the actual current to be supplied to a motor from a battery via an H bridge circuit, the calculation of the offset voltage IMOFS is prohibited if at least either the battery voltage ADVBU or the boosting voltage ADVBR to drive a switching element of the H bridge circuit is not higher than the thresholds #IMVBUL and #IMVBRL, and the system can prevent an inaccurate offset voltage from being calculated in an unstable condition. Further, calculation of the offset voltage IMOFS is prohibited when the value obtained by subtracting the motor inter-terminal voltage DVMA subtracted from the battery voltage ADVBU is equal to or less than the threshold #VBDM, and the system can prevent an inaccurate offset voltage IMOFS from being calculated in a state that the motor generates a high counter electromotive voltage.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：以精确度计算电动助力转向装置的电动机电流检测装置的分流电阻的偏移电压。
解决方案：当计算并联电阻的偏移电压IMOFS以检测从电池通过H桥电路提供给电机的实际电流时，如果至少电池电池电压ADVBU或升压电压ADVBR驱动H桥电路的开关元件不高于阈值#IMVBUL和#IMVBRL，并且系统可以防止在不稳定状态下计算不准确的偏移电压。此外，当通过减去从电池电压ADVBU减去的电动机端子间电压DVMA获得的值等于或小于阈值#VBDM时，禁止计算偏移电压IMOFS，并且系统可以防止不准确的偏移电压IMOFS 在电动机产生高反电动势的状态下计算。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2005067510A Electric power steering device 有权
标题翻译：电动转向装置
公开(公告)号：JP2005067510A
公开(公告)日：2005-03-17
申请号：JP2003302626
申请日：2003-08-27
申请人： Honda Motor Co Ltd , Showa Corp , 本田技研工業株式会社 , 株式会社ショーワ
发明人： YUDA MASATO , KAWASHIMA MITSUNORI , ISHIGAKI HIROAKI
IPC分类号： B62D6/00 , B62D5/04 , H02P7/00 , H02P29/00
摘要： PROBLEM TO BE SOLVED: To check a communicating function between both CPUs in a short time, while ensuring synchronism in an offset voltage calculating processing when an actual current of a motor is calculated by the main CPU and a sub CPU of an electric power steering device.
SOLUTION: In an initial processing after turning on an ignition switch, a calculation requesting signal of the offset voltage is sent to the sub CPU when calculation of the offset voltage in the main CPU is finished. If a span of time since the calculation requesting signal was sent till a calculation finishing signal of the offset voltage from the sub CPU is received by the main CPU is within a predetermined time period, the communicating function between the main CPU and the sub CPU, and an offset voltage calculating function of the sub CPU can be determined sa normal. The synchronism between the calculation of the offset voltage in the main CPU and that in the sub CPU is ensured.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了在短时间内检查两个CPU之间的通信功能，同时确保当主CPU和电子计算机的子CPU计算电动机的实际电流时的偏移电压计算处理中的同步动力转向装置。解决方案：在开启点火开关后的初始处理中，当主CPU中的偏移电压计算完成时，将偏移电压的计算请求信号发送到子CPU。如果主CPU接收到自计算请求信号之后的时间跨度，直到主CPU接收到来自子CPU的偏移电压的计算结束信号在预定时间段内，则主CPU和副CPU之间的通信功能，并且可以确定子CPU的偏移电压计算功能正常。确保主CPU和副CPU中的偏移电压的计算之间的同步。版权所有（C）2005，JPO＆NCIPI

8. 发明专利

JP2005067351A Failure detecting device in electric power steering device 有权
标题翻译：电力转向装置故障检测装置
公开(公告)号：JP2005067351A
公开(公告)日：2005-03-17
申请号：JP2003298609
申请日：2003-08-22
申请人： Honda Motor Co Ltd , Showa Corp , 本田技研工業株式会社 , 株式会社ショーワ
发明人： YUDA MASATO , KAWASHIMA MITSUNORI , ISHIGAKI HIROAKI
IPC分类号： B62D6/00 , B62D5/04 , B62D119/00 , H02P7/06
摘要： PROBLEM TO BE SOLVED: To certainly detect adhesion failure of a motor current detecting means in an electric power steering device.
SOLUTION: The electric power steering device detects an actual current IM1 supplied to a motor by the motor current detecting means, and feedback controls the actual current IM1 so as to agree with a target current ITN decided on the basis of steering torque. When an integrated value CDIM of time that a deviation SIMTN between the target current ITN and the actual current IM1 is not less than a threshold #SIMTNL becomes not less than a first predetermined time #CDIMNG, it is determined that the adhesion failure occurs in the motor current detecting means. When an integrated value CDIMC1 of time that a deviation STNIM between the target current ITN and the actual current IM1 is not more than the threshold #SIMTNL becomes not ledd than a second predetermined time #CDIMC1NG, the integrated value CDIM is reset to prohibit failure determination.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了确定地检测电动助力转向装置中的电动机电流检测装置的附着故障。电动助力转向装置检测由电动机电流检测装置提供给电动机的实际电流IM1，并且反馈控制实际电流IM1，以便与基于转向转矩决定的目标电流ITN一致。当目标电流ITN和实际电流IM1之间的偏差SIMTN不小于阈值#SIMTNL的时间的积分值CDIM变得不小于第一预定时间#CDIMNG时，确定粘附故障发生在马达电流检测装置。当目标电流ITN和实际电流IM1之间的偏差STNIM不大于阈值#SIMTNL的时间的积分值CDIMC1不会比第二预定时间＃CDIMC1NG被引导时，积分值CDIM被复位以禁止故障确定。版权所有（C）2005，JPO＆NCIPI

9. 发明专利

JP2005075310A Vehicular steering control device 有权
标题翻译：车辆转向控制装置
公开(公告)号：JP2005075310A
公开(公告)日：2005-03-24
申请号：JP2003311921
申请日：2003-09-03
申请人： Honda Motor Co Ltd , Showa Corp , 本田技研工業株式会社 , 株式会社ショーワ
发明人： KAWASHIMA MITSUNORI , YUDA MASATO , ISHIGAKI HIROAKI
IPC分类号： B62D6/00 , B62D5/04 , B62D101/00 , B62D119/00 , B62D127/00 , B62D137/00
摘要： PROBLEM TO BE SOLVED: To adequately detect presence/absence of abnormality of switching elements in a motor driving device comprising a plurality of switching elements to control the energization current to be supplied to a motor to drive a steering mechanism.
SOLUTION: A sub CPU 11b transmits predetermined directional output inhibition signals INHR and INHL to an output inhibition circuit 20 when the duration in which the steering torque TRQ and the motor current IM belong to a predetermined directional output inhibition area reaches or exceeds a predetermined duration, all transistors FET1, ..., FET4 of a bridge circuit 15 are set in an OFF state, and inhibits the power supply to a motor 8. The sub CPU 11b detects whether or not the transistors FET1, ..., FET4 are in an abnormal state based on the detected duration of the period for performing the directional output inhibition and the motor current IM corresponding to the fact that the directional output inhibition process is performed when the motor current IM becomes excessive.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了充分地检测包括多个开关元件的电动机驱动装置中的开关元件的异常的存在/不存在，以控制供给到电动机的通电电流以驱动转向机构。解决方案：当转向转矩TRQ和电机电流IM属于预定的方向输出禁止区域的持续时间达到或超过一个时，副CPU 11b将预定的方向输出禁止信号INHR和INHL发送到输出禁止电路20 桥接电路15的所有晶体管FET1，...，FET4被设定为断开状态，并禁止对电动机8的供电。子CPU 11b检测晶体管FET1，...，基于检测到的用于执行方向输出禁止的周期的持续时间和对应于当电动机电流IM变得过大时进行方向输出禁止处理的事实的电动机电流IM，FET4处于异常状态。版权所有（C）2005，JPO＆NCIPI

10. 发明专利

JP2005075159A Bus bar disconnection detection device in electric power steering device 有权
标题翻译：电动转向装置中的母线断开检测装置
公开(公告)号：JP2005075159A
公开(公告)日：2005-03-24
申请号：JP2003308461
申请日：2003-09-01
申请人： Honda Motor Co Ltd , Showa Corp , 本田技研工業株式会社 , 株式会社ショーワ
发明人： KAWASHIMA MITSUNORI , YUDA MASATO , ISHIGAKI HIROAKI
IPC分类号： B62D6/00 , B62D5/04 , B62D119/00 , H02P7/29
摘要： PROBLEM TO BE SOLVED: To detect disconnection of a bus bar to connect an H bridge circuit to a motor terminal voltage detection circuit.
SOLUTION: If the voltage of a first output terminal TM1 to be detected by a motor terminal voltage detection circuit 50 is not dropped from the predetermined pulled-up voltage even when a first switching element 46a is turned ON when all first to fourth switching elements 46a-46d can be turned on because a motor drive prohibition circuit 52 is not operated, it is determined that a bus bar 61 is disconnected, and conduction of the motor terminal voltage detection circuit 50 with a low-pressure terminal TL of the grounding electric potential is intercepted. If the voltage of a second output terminal TM2 to be detected by the motor terminal voltage detection circuit 50 is not dropped from the predetermined voltage even when a second switching element 46b is turned ON, it is determined that a bus bar 62 is disconnected, and conduction of the motor terminal voltage detection circuit 50 with the low-pressure terminal TL is intercepted. Disconnection of the bus bars 61 and 62 can be correctly detected thereby.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：检测汇流条的断开以将H桥电路连接到电机端子电压检测电路。解决方案：即使第一开关元件46a在第一至第四端接通时，如果由电动机端子电压检测电路50检测到的第一输出端子TM1的电压也不会从预定的上拉电压下降开关元件46a-46d可以由于电动机驱动禁止电路52未被操作而被确定，确定汇流条61断开，并且电动机端子电压检测电路50与低压端子TL的导通接地电势被截获。即使第二开关元件46b接通，如果由电动机端子电压检测电路50检测出的第二输出端子TM2的电压也没有从预定电压下降，则确定汇流条62断开，电动机端子电压检测电路50与低压端子TL的导通被截断。可以正确地检测母线61和62的断路。版权所有（C）2005，JPO＆NCIPI

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