After-burner heated catalyst system and associated control circuit and
method
    1.
    发明授权
    After-burner heated catalyst system and associated control circuit and method 失效
    燃烧后加热催化剂体系及相关控制电路及方法

    公开(公告)号:US5802844A

    公开(公告)日:1998-09-08

    申请号:US497592

    申请日:1995-06-30

    IPC分类号: F01N3/20 F01N9/00

    摘要: An after-burner heated catalyst control system and associated control circuit for controlling operation of an after-burner heated catalyst. The control circuit has an air pump motor, a spark plug, and a fuel injector, while the catalyst is disposed within an exhaust passageway of the engine. The control circuit further includes an apparatus for controlling operation of and pulse wave modulating the air pump motor, one spark plug, and fuel injector. An RS232 interface is provided for transmitting and receiving data from and to the control circuit. In addition a method is provided for controlling a temperature of an after-burner heated catalyst and adjusting adaptively the pulse wave modulation of the air pump motor, spark plug, and fuel injector.

    摘要翻译: 后燃烧器加热催化剂控制系统和用于控制后燃烧器加热的催化剂的操作的相关控制电路。 控制电路具有空气泵电动机,火花塞和燃料喷射器,同时催化剂设置在发动机的排气通道内。 控制电路还包括用于控制气泵马达,一个火花塞和燃料喷射器的操作和脉波调制的装置。 提供RS232接口用于从控制电路发送和接收数据。 此外,提供了一种用于控制后燃烧器加热的催化剂的温度并适应地调节气泵电动机,火花塞和燃料喷射器的脉冲波调制的方法。

    Circuit and control method for electrically heating a catalyst
    2.
    发明授权
    Circuit and control method for electrically heating a catalyst 失效
    电加热催化剂的电路和控制方法

    公开(公告)号:US5645745A

    公开(公告)日:1997-07-08

    申请号:US299985

    申请日:1994-09-02

    摘要: In an engine exhaust system including a DC power source, an apparatus and method for electrically heating a catalyst, the apparatus comprising a multi-phase AC alternator in electrically operable relation to the DC power source, the AC alternator rectifying the AC to DC by a diode rectifier bridge. A device for switching power supplied from the multi-phase AC alternator to the battery to the electrically heated catalyst, the relay device in electrically operable relation with the multi-phase AC alternator. An electrically heated catalyst in electrically operable relation with the switching device is also provided, the catalytic converter including a catalyst for purifying exhaust gases of the engine and a heating element for bringing the catalytic converter expediently within peak operating temperature. The invention further includes a device for energizing and de-energizing the switching device, the energizing and de-energizing device in electrically operable relation with the switching device.

    摘要翻译: 在包括DC电源的发动机排气系统,用于电加热催化剂的装置和方法中,该装置包括与DC电源电操作的多相AC交流发电机,AC交流发电机将AC对DC进行整流, 二极管整流桥。 一种用于将从多相AC交流发电机提供给电池的电力切换到电加热催化剂的装置,该继电器装置与多相AC交流发电机电操作。 还提供了与开关装置电操作关系的电加热催化剂,催化转化器包括用于净化发动机废气的催化剂和用于使催化转化器有利地在最高工作温度下的加热元件。 本发明还包括用于对开关装置通电和断电的装置,与开关装置电操作关系的通电和断电装置。

    Method of measuring barometric pressure and manifold absolute pressure
using a single sensor
    3.
    发明授权
    Method of measuring barometric pressure and manifold absolute pressure using a single sensor 失效
    使用单个传感器测量大气压力和歧管绝对压力的方法

    公开(公告)号:US4787043A

    公开(公告)日:1988-11-22

    申请号:US922779

    申请日:1986-10-28

    CPC分类号: F02D41/28 F02D2200/703

    摘要: A method for reading the barometric pressure surrounding a vehicle and manifold absolute pressure from an engine utilizing a manifold absolute pressure sensor and a solenoid to vent the sensor to atmosphere as controlled by an electronic control system for an engine to measure the barometric pressure and to vent the sensor to manifold pressure to measure the manifold absolute pressure.

    摘要翻译: 一种利用歧管绝对压力传感器和螺线管读取来自发动机的发动机大气压力和歧管绝对压力的方法,用于将传感器排放到大气中,该气体由用于发动机的电子控制系统控制以测量大气压力并排出 传感器到歧管压力来测量歧管绝对压力。