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    • 1. 发明授权
    • Abnormality detector apparatus for a coolant apparatus for cooling an engine
    • 用于冷却发动机的冷却剂装置的异常检测装置
    • US06200021B1
    • 2001-03-13
    • US09162442
    • 1998-09-29
    • Noritake MitsutaniTomohiro FujitaHideaki Mizuno
    • Noritake MitsutaniTomohiro FujitaHideaki Mizuno
    • G01K1500
    • F01P11/16F01P2023/00F01P2031/00F02D41/22G01K15/00G05B23/0235
    • An abnormality detector apparatus for an engine water-cooling apparatus has an electronic control unit (ECU) for precisely and quickly determining and detecting an operation abnormality of a thermostat or a water temperature sensor. After the engine is started, the ECU calculates, over time, an engine heat generation quantity, an estimated cooling water temperature or the like on the basis of various engine operating condition parameters, such as cooling water temperature, intake temperature, engine revolution speed, amount of intake air, and the like. After the elapse of a predetermined time, the ECU compares the estimated cooling water temperature and the cooling water temperature actually detected by the water temperature sensor. If the relationship therebetween meets a predetermined condition, the ECU determines whether there is an abnormality in the operating condition of the thermostat and/or the cooling water temperature sensor.
    • 用于发动机水冷却装置的异常检测装置具有用于精确且快速地确定和检测恒温器或水温传感器的操作异常的电子控制单元(ECU)。 发动机启动后,ECU根据各种发动机运转状态参数(如冷却水温度,进气温度,发动机转速等),随时间推算发动机发热量,估计冷却水温度等, 进气量等。 在经过预定时间之后,ECU比较估计的冷却水温度和由水温传感器实际检测的冷却水温度。 如果它们之间的关系满足预定条件,则ECU确定恒温器和/或冷却水温度传感器的运行状态是否有异常。
    • 9. 发明申请
    • Air/fuel ratio control device for internal combustion engine
    • 内燃机空/燃比控制装置
    • US20060185655A1
    • 2006-08-24
    • US10554025
    • 2004-04-22
    • Noritake Mitsutani
    • Noritake Mitsutani
    • F02D41/14
    • F02D41/1482F02D41/187
    • An air-fuel ratio control apparatus for an internal combustion engine, implementing integral correction of the air-fuel ratio by an integral term edfii obtained by multiplying an integrated difference between a target air fuel ratio and the actual air-fuel ratio by an integral gain, wherein the upper and lower limit values of the integral term are set based on the actual intake air amount and the actual air-fuel ratio. This limits the range of the integral term edfii to prevent it from being set at an excessively high or low level removed from the realities of the intake air amount and the air-fuel ratio, and thereby to prevent erroneous air-fuel ratio correction by the integral term.
    • 一种用于内燃机的空燃比控制装置,通过将目标空燃比与实际空燃比之间的积分差乘以积分增益而得到的积分项edfii,实现空燃比的整体校正 其特征在于,所述积分项的上限值和下限值基于实际吸气量和实际空燃比来设定。 这限制了积分项edfii的范围,以防止其被设定在从吸入空气量和空燃比的现实中去除的过高或过低水平,从而防止由空气燃料比 积分项。
    • 10. 发明授权
    • Apparatus and method for controlling internal combustion engine
    • 内燃机控制装置及方法
    • US06729319B2
    • 2004-05-04
    • US10178481
    • 2002-06-25
    • Noritake Mitsutani
    • Noritake Mitsutani
    • F02M2508
    • F02M25/089F02D41/0042F02D41/0045F02D41/1454F02D41/401F02D2041/1422
    • Gas containing fuel vapor is purged as purge gas from a canister to an intake passage through a purge line. An ECU computes purge flow rate, which is the flow rate of the purge gas, and computes vapor concentration, which is the concentration of the fuel vapor contained in the purge gas. The ECU obtains a concentration correction value in accordance with the rate of change of the computed purge flow rate. The ECU correct the computed vapor concentration by using the concentration correction value and by taking into consideration of the time at which the purge flow rate is computed and the time at which purge gas having the computed flow rate is drawn into the combustion chamber. The ECU sets the fuel supply amount in accordance with the computed purge flow rate and the corrected vapor concentration. As a result, the accuracy of the air-fuel ratio control during purging is improved.
    • 含有燃料蒸汽的气体被吹扫为吹扫气体,从罐到净化管线的进气通道。 ECU计算吹扫流量,即净化气体的流量,并计算蒸汽浓度,蒸汽浓度是吹扫气体中所含的燃料蒸气的浓度。 ECU根据计算出的清洗流量的变化率来获得浓度校正值。 ECU通过使用浓度校正值并考虑计算清洗流量的时间和计算流量的吹扫气体被吸入燃烧室的时间来校正计算出的蒸汽浓度。 ECU根据计算的吹扫流量和校正的蒸气浓度来设定燃料供给量。 结果,提高了净化时的空燃比控制的精度。