Secondary air pump control system for internal combustion engines
    24.
    发明授权
    Secondary air pump control system for internal combustion engines 失效
    内燃机二次空气泵控制系统

    公开(公告)号:US5615552A

    公开(公告)日:1997-04-01

    申请号:US510169

    申请日:1995-08-02

    摘要: A secondary air pump control system for an internal combustion engine having an air pump for supplying secondary air to the exhaust passage, comprises a voltage detector for detecting voltage applied to the air pump, a current detector for detecting current flowing through the air pump, and a switch for making a changeover between supply of electric power to the air pump and cutoff of same. The flow rate of secondary air supplied by the air pump is detected based on an output from the voltage detector and an output from the current detector. The operation of the switch is controlled based on the flow rate thus detected.

    摘要翻译: 一种用于内燃机的二次空气泵控制系统,其具有用于向排气通道供应二次空气的空气泵,包括用于检测施加到空气泵的电压的电压检测器,用于检测流过空气泵的电流的电流检测器,以及 用于在供应到空气泵的电力和切断之间进行切换的开关。 基于来自电压检测器的输出和来自电流检测器的输出来检测由空气泵供应的二次空气的流量。 基于这样检测的流量来控制开关的动作。

    Alternator control system
    26.
    发明授权
    Alternator control system 失效
    发电机控制系统

    公开(公告)号:US5754032A

    公开(公告)日:1998-05-19

    申请号:US736659

    申请日:1996-10-25

    CPC分类号: H02J7/1438

    摘要: A control system for controlling an alternator driven by an engine, for generating electric power, has a changeover switch for selectively switching destination of electric power generated by the alternator to a plurality of electric loads having respective different load voltage values. An ECU controls switching operation of the changeover switch and controls the alternator electric power, according to a direction in which the changeover switch has been switched. The ECU detects voltage of the alternator electric power when the destination of the alternator electric power is to be switched from a first electric load having a higher load voltage value of the plurality of electric loads to a second electric load having a lower load voltage value of the same, and causes the changeover switch to switch the destination of the alternator electric power from the first electric load to the second electric load after it is determined that the voltage of the alternator electric power has been changed from a predetermined higher voltage value to a predetermined lower voltage value.

    摘要翻译: 用于控制由发动机驱动的用于发电的交流发电机的控制系统具有切换开关,用于选择性地将由交流发电机产生的电力的目的地切换到具有不同负载电压值的多个电负载。 ECU根据切换开关的切换方向,控制切换开关的切换动作,控制交流发电机的电力。 当将交流发电机的目的地从具有多个电负载的较高负载电压值的第一电负载切换到具有较低负载电压值的第二电负载时,ECU检测交流发电机电力的电压 并且在确定交流发电机的电压已经从预定的更高的电压值变为一个预定的较高的电压值之后,使得切换开关将交流发电机的电力的目的地从第一电力负载切换到第二电力负载 预定的较低电压值。

    Motor vehicle alternator and system for controlling the same
    28.
    发明授权
    Motor vehicle alternator and system for controlling the same 失效
    机动车交流发电机及其控制系统

    公开(公告)号:US5763977A

    公开(公告)日:1998-06-09

    申请号:US683956

    申请日:1996-07-19

    IPC分类号: H02K21/00 H02K21/48

    CPC分类号: H02K21/024

    摘要: A motor vehicle alternator connected to an output shaft of an internal combustion engine mounted on a vehicle, comprising a rotor made of a permanent magnet for producing a magnetic field, an armature (stator) having a coil placed opposite to the permanent magnet rotor and a belt drive mechanism for connecting one of the permanent magnet and the armature to the output shaft of the engine to bring them into a relative rotation such that the armature relatively moves in the magnetic field produced by the permanent magnet. In the alternator, there is provided an axial displacement mechanism for displacing at least one of the permanent magnet rotor and the armature in an axial direction of the relative rotation, whereby a magnetic flux passing through the armature is changed. The axial displacement mechanism comprises a solenoid, a plunger housed in the solenoid to be movable when the solenoid is energized and a lever connected to the plunger at one end and to a carrier that carries the armature such that it pivots about a fulcrum to displace the armature in the axial direction of the relative rotation. Other types of the mechanism using a rack and pinion, etc., are used. The operation of mechanism is controlled such that a desired electric power is generated.

    摘要翻译: 一种连接到安装在车辆上的内燃机的输出轴的机动车辆交流发电机,包括由用于产生磁场的永磁体制成的转子,具有与永磁转子相对设置的线圈的电枢(定子)和 带驱动机构,用于将永磁体和衔铁中的一个连接到发动机的输出轴,以使其相对旋转,使得电枢在由永磁体产生的磁场中相对移动。 在交流发电机中,设置有轴向位移机构,用于沿着相对旋转的轴向移动永磁转子和电枢中的至少一个,从而改变通过电枢的磁通量。 轴向位移机构包括螺线管,容纳在螺线管中的柱塞,以在螺线管通电时可移动,以及在一端连接到柱塞的杆和承载衔铁的载体,使得其绕支点枢转以使 衔铁在轴向相对旋转。 使用其他类型的使用齿条齿轮等的机构。 控制机构的操作,使得产生期望的电力。

    Failure detecting system of exhaust purification apparatus
    29.
    发明授权
    Failure detecting system of exhaust purification apparatus 失效
    排气净化装置故障检测系统

    公开(公告)号:US06185931B1

    公开(公告)日:2001-02-13

    申请号:US09365823

    申请日:1999-08-03

    IPC分类号: F01N300

    摘要: A failure detecting system of an exhaust purification apparatus includes, a catalyst unit including an electrically heated catalyst and intervened in an engine exhaust path, an air pump supplying a secondary air to the engine exhaust path, a first electric current sensor detecting electric current value for the electrically heated catalyst, and a second electric current sensor detecting electric current value for the air pump. The electrically heated catalyst and air pump are supplied with current upon a cold start of an engine. Presence of failures in the electrically heated catalyst and air pump is discerned on the basis of the electric current value each of the first and second electric current sensors, and the detection of the current value of the first electric current sensor starts prior to the detection of the current value of the second electric current sensor.

    摘要翻译: 排气净化装置的故障检测系统包括:催化剂单元,其包括电加热的催化剂并且介于发动机排气路径中;向发动机排气路径供给二次空气的空气泵;检测电流值的第一电流传感器, 所述电加热催化剂和检测所述气泵的电流值的第二电流传感器。 电加热的催化剂和空气泵在发动机的冷启动时被供给电流。 基于第一和第二电流传感器的电流值,识别电加热的催化剂和空气泵中的故障的存在,并且在检测到第一电流传感器之前开始检测第一电流传感器的当前值 第二电流传感器的当前值。