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1. 发明专利

JP2013238152A Engine starting device 有权
标题翻译：发动机起动装置
公开(公告)号：JP2013238152A
公开(公告)日：2013-11-28
申请号：JP2012110997
申请日：2012-05-14
申请人： Hitachi Automotive Systems Ltd , 日立オートモティブシステムズ株式会社
发明人： SAITO KAZUYA
IPC分类号： F02N11/08 , F02D29/02 , F02N15/00
CPC分类号： Y02T10/48
摘要： PROBLEM TO BE SOLVED: To provide an engine starting device which can reduce lowering of battery voltage upon engine starting, while suppressing cost increase.SOLUTION: An engine starting device includes: a starter motor 101a for starting an engine; a semiconductor switch mechanism 101f for supplying driving power to the starter motor 101a from a battery 104 to crank and start the engine upon engine starting; and a crank angle sensor S4 for detecting engine rotational speed information when cranking. Based on the rotational speed information, an ECU 103 calculates basic drive Duty giving drive power in which battery voltage is not less than the lowest compensation voltage as a reference voltage value, and based on the basic drive Duty, the semiconductor switch mechanism 101f supplies a drive power to the starter motor 101a.
摘要翻译：要解决的问题：提供一种发动机起动装置，其能够在抑制发动机起动的同时降低发动机起动时的电池电压降低。发动机起动装置包括：起动发动机的起动电动机101a; 半导体开关机构101f，用于从电池104向起动电动机101a提供驱动力，以在发动机起动时起动发动机; 以及用于在起动时检测发动机转速信息的曲轴转角传感器S4。根据转速信息，ECU103计算电池电压不低于作为基准电压值的最低补偿电压的基本驱动占空比，并且基于基本驱动占空比，半导体开关机构101f提供向起动电动机101a驱动电力。

2. 发明专利

JP2013142289A Idling stop control device 审中-公开
标题翻译： IDLING停止控制设备
公开(公告)号：JP2013142289A
公开(公告)日：2013-07-22
申请号：JP2012001335
申请日：2012-01-06
申请人： Hitachi Automotive Systems Ltd , 日立オートモティブシステムズ株式会社
发明人： SAITO KAZUYA
IPC分类号： F02N11/08 , F02D29/02 , F02N15/00 , F02N15/02
CPC分类号： Y02T10/48
摘要： PROBLEM TO BE SOLVED: To solve problems of battery voltage decline by motor power consumption upon energizing a motor of a starter motor during coast stop, so that a portion of vehicle safety control devices malfunctions due to reset of an electric power steering or a vehicle operation control unit, start of a reset operation of an AV appliances, etc.SOLUTION: When engaging a pinion gear with a ring gear in an idling stop control device, an energization period to a starter motor is divided into an initial energization period and a main energization period. By calculating the energization amount of the main energization period from a battery state amount in the initial energization interval, the starter motor is driven according to a battery state.
摘要翻译：要解决的问题：为了解决在滑行停止期间激励起动电动机的电动机时电动机功率消耗的电池电压下降的问题，使得一部分车辆安全控制装置由于电动助力转向或车辆操作的复位而发生故障控制单元，AV设备的复位操作的开始等。解决方案：当在怠速停止控制装置中将小齿轮与环形齿轮啮合时，起动电动机的通电周期被分为初始通电时段和主要通电期通过从初始通电间隔中的电池状态量计算主通电期间的通电量，根据电池状态来驱动起动电动机。

3. 发明专利

JP2011252472A Control device of engine 有权
标题翻译：发动机控制装置
公开(公告)号：JP2011252472A
公开(公告)日：2011-12-15
申请号：JP2010128476
申请日：2010-06-04
申请人： Hitachi Automotive Systems Ltd , 日立オートモティブシステムズ株式会社
发明人： SAITO KAZUYA , ASANO SEIJI
IPC分类号： F02D41/14 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide a control device of an engine that can prevent exhaust emission characteristics from significantly degrading within all operating ranges including a range with a high air amount and a high exhaust temperature even if a low noble metal catalyst is used and the catalyst degrades to some degree.SOLUTION: The control device includes a means for setting a target air-fuel ratio for an air-fuel ratio before the catalyst, an air-fuel ratio control means for performing a feedback control of a fuel injection amount based on outputs from an upstream air-fuel ratio sensor 51 and a downstream Osensor 52 so as to converge the air-fuel ratio before the catalyst to the target air-fuel ratio, a degradation level learning means for detecting a degradation level of the catalyst by using the output from the downstream Osensor 52 and a degradation degree detection threshold S3 that is set to be within or near a stoichiometric range, and for storing and updating the detected degradation level as a learning value for every operating range, and a learning value reflecting means for correcting the target air-fuel ratio by using the learning value stored in the learning means.
摘要翻译：要解决的问题：提供一种发动机的控制装置，即使在低贵金属催化剂为低的情况下，也可以在包括高空气量和高排气温度的范围内的所有工作范围内防止废气排放特性显着劣化使用并且催化剂在一定程度上降解。解决方案：控制装置包括用于设定催化剂之前的空燃比的目标空燃比的装置，用于基于从燃料喷射量的输出执行燃料喷射量的反馈控制的空燃比控制装置上游空燃比传感器51和下游O 2 传感器52，以将催化剂前的空燃比收敛到目标空燃比，劣化水平用于通过使用来自下游O 2 传感器52的输出以及设定在化学计量或接近化学计量的劣化度检测阈值S3来检测催化剂的劣化水平的学习装置并且用于存储和更新检测到的劣化水平作为每个操作范围的学习值，以及学习值反映装置，用于通过使用存储在学习装置中的学习值来校正目标空燃比。版权所有（C）2012，JPO＆INPIT

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