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    • 16. 发明专利
    • Failure diagnostic device of thermostat and failure diagnostic method
    • 故障诊断方法及故障诊断方法
    • JP2014020346A
    • 2014-02-03
    • JP2012162937
    • 2012-07-23
    • Mitsubishi Motors Corp三菱自動車工業株式会社
    • FURUTA MASAHIROSAITO KENJIKAMURA HITOSHI
    • F01P11/16F01P7/16F02D45/00
    • G01N25/72F01P11/16F01P2025/32F01P2031/30F01P2050/24F01P2060/08
    • PROBLEM TO BE SOLVED: To provide a failure diagnostic device of a thermostat which secures temperature estimation accuracy of cooling water during automatic stopping of an engine and can perform high-accuracy failure diagnosis with a simple constitution.SOLUTION: A failure diagnostic device of a thermostat 14 which controls cooling water flowing to a radiator 13 in accordance with an actual water temperature of cooling water of an engine 10 includes: actual water temperature detection means 16 for detecting an actual water temperature WT; estimated water temperature calculation means 22 for calculating an estimated water temperature of cooling water; and failure diagnosis means 23 for evaluating whether the thermostat 14 causes valve-opening failure by comparing the actual water temperature WT detected by the actual water temperature detection means 16 with the estimated water temperature calculated by the estimated water temperature calculation means 22 upon the cool starting of the engine 10. The estimated water temperature calculation means 22, in an engine stall mode, at least including the duration of automatic stopping of the engine 10, the estimated water temperature in the engine stall mode is calculated by applying temperature behavior of the actual water temperature WT to the estimated water temperature calculated immediately before automatic stopping of the engine 10.
    • 要解决的问题:提供一种恒温器的故障诊断装置,其在发动机自动停止期间确保冷却水的温度估计精度,并且可以以简单的结构执行高精度故障诊断。解决方案:恒温器的故障诊断装置 根据发动机10的冷却水的实际水温来控制流向散热器13的冷却水的控制装置14包括:实际水温检测装置16,用于检测实际的水温WT; 用于计算冷却水的估计水温的预测水温计算单元22; 以及故障诊断装置23,用于通过将实际水温检测装置16检测到的实际水温WT与由冷却开始时的估计水温计算装置22计算的估计水温进行比较来评估恒温器14是否导致开阀故障 估计水温计算装置22在发动机失速模式下至少包括发动机10的自动停止持续时间,通过应用实际的发动机10的温度特性来计算发动机失速模式中的估计水温 水温WT与发动机10自动停止之前计算出的估计水温。
    • 17. 发明专利
    • Cogeneration system
    • 加工系统
    • JP2009103112A
    • 2009-05-14
    • JP2007278204
    • 2007-10-25
    • Honda Motor Co Ltd本田技研工業株式会社
    • YURI NOBUYUKIWAKITANI TSUTOMU
    • F02G5/04F01P7/16
    • F02G5/04F01P2031/30F02B63/04F02G2260/00Y02E20/14Y02P80/15Y02T10/166
    • PROBLEM TO BE SOLVED: To provide a cogeneration system capable of avoiding an engine from stopping by preventing abnormal cooling water immediately after an engine is started. SOLUTION: This cogeneration system 10 comprises an engine 11, a generator 13 for generating electric energy, a cooling water circulation channel 21 for returning cooling water of the engine 11 to the engine after some of the cooling water has been removed, and an exhaust heat heat exchanger 17 interposed in the cooling water circulation channel 21 and increasing a temperature of the cooling water using exhaust gas emitted from the engine 11 as a heat source. The cooling water circulation channel 21 is provided with a cooling water pump 22, electricity supplying means 71, and a control part 43 for supplying electrical energy to a motor 22a of the cooling water pump 22 using the electricity supplying means 71 when a power outage signal is received. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种能够通过在发动机起动后立即防止异常冷却水来避免发动机停止的热电联产系统。 解决方案:该热电联产系统10包括发动机11,用于产生电能的发电机13,在去除了一些冷却水之后将发动机11的冷却水返回到发动机的冷却水循环通道21,以及 插入冷却水循环通道21中的排气热交换器17,并且使用从发动机11排出的排气作为热源来提高冷却水的温度。 冷却水循环通道21设置有冷却水泵22,供电装置71和控制部43,用于当断电信号时,使用供电装置71向冷却水泵22的电动机22a提供电能 被收到。 版权所有(C)2009,JPO&INPIT
    • 19. 发明专利
    • Drive system and control method therefor
    • 驱动系统及其控制方法
    • JP2006197766A
    • 2006-07-27
    • JP2005008983
    • 2005-01-17
    • Toyota Motor Corpトヨタ自動車株式会社
    • HOSHIBA TAKESHI
    • H02P3/00F01P5/12F01P7/04F01P7/16
    • F01P7/08F01P7/162F01P11/14F01P2005/046F01P2005/125F01P2031/30Y10T307/484
    • PROBLEM TO BE SOLVED: To prevent an occurrence of malfunction in a system when an instruction to turn off the system is issued. SOLUTION: When an instruction to turn off the system is issued, control is carried out so that driving of the motor of a motor-operated cooling water pump is stopped (Step S100). The processing waits until a predetermined time has lapsed after the control to stop the motor is started (Step S110). Then, a relay is turned off to interrupt power supply to the CPU of a controller (Step S120). Since the processing is suspended until the predetermined time has lapsed after control is started so that the motor stops driving and then the relay is turned off, power supply to the controller can be interrupted after the counterelectromotive voltage of the motor becomes sufficiently low. As a result, malfunction can be prevented from being caused in the controller by counterelectromotive force due to the motor. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了防止在发出关闭系统的指令时在系统中发生故障。

      解决方案:当发出关闭系统的指令时,进行控制,使电动冷却水泵的电动机的驱动停止(步骤S100)。 在停止电动机的控制开始之后,处理等待直到经过了预定时间(步骤S110)。 然后,关闭继电器以中断对控制器的CPU的供电(步骤S120)。 由于在控制开始之后停止处理直到经过了预定时间,所以马达停止驱动,然后继电器关闭,在马达的反电动势电压变得足够低之后,可以中断对控制器的供电。 结果,可以通过由电动机引起的反电动势来防止在控制器中引起故障。 版权所有(C)2006,JPO&NCIPI