Apparatus for controlling the electric heating of catalyst
    1.
    发明授权
    Apparatus for controlling the electric heating of catalyst 失效
    用于控制催化剂电加热的装置

    公开(公告)号:US5390493A

    公开(公告)日:1995-02-21

    申请号:US10620

    申请日:1993-01-28

    IPC分类号: F01N3/20 F01N9/00 F01N3/28

    摘要: A catalyst heating control device for cleaning automotive engine exhaust gases, comprising a generator, at least one battery, a catalyst heating control apparatus, a battery charging device and an electronic fuel injector. Before starting the engine, the catalyst is preheated. At the start of the engine, the catalyst preheat control is curtailed according to the state of the batteries. The catalyst current control is performed by detecting the catalyst activation temperature. The catalyst is heated usually to about 350.degree. C., at which point the current supply for heating is terminated.

    摘要翻译: 一种用于清洁汽车发动机废气的催化剂加热控制装置,包括发电机,至少一个电池,催化剂加热控制装置,电池充电装置和电子燃料喷射器。 在起动发动机之前,催化剂被预热。 在发动机起动时,催化剂预热控制根据电池的状态而减少。 通过检测催化剂活化温度来进行催化剂电流控制。 将催化剂通常加热至约350℃,此时终止加热的电流供应。

    Catalyzer control apparatus
    2.
    发明授权
    Catalyzer control apparatus 失效
    催化剂控制装置

    公开(公告)号:US5503804A

    公开(公告)日:1996-04-02

    申请号:US838368

    申请日:1992-02-19

    摘要: A catalyzer control apparatus for purifying exhaust gas from an internal combustion engine has an electrically heated catalyzer that is heated by a battery which battery is isolated from the conventionally provided engine battery. The temperature of the catalyzer is detected by a sensor and a control circuit located with an engine control unit selectively applies power to heat the catalyzer. The catalyzer is arranged to be pre-heated prior to engine start and by isolating the battery for heating the catalyzer from the normally provided engine battery so, because the catalyzer takes a great power, engine starting is enhanced by virtue of having separate batteries.

    摘要翻译: 用于净化来自内燃机的废气的催化剂控制装置具有由电池加热的电加热催化剂,该电池与常规提供的发动机电池隔离。 催化器的温度由传感器检测,并且位于发动机控制单元的控制电路选择性地施加电力以加热催化剂。 催化剂被布置成在发动机启动之前被预热,并且通过隔离用于将催化剂与正常提供的发动机电池进行加热的电池,因此,由于催化剂需要大功率,因此通过具有单独的电池来增强发动机启动。

    Method and apparatus for operating an electric vehicle drive system
during periods of sensor malfunction
    10.
    发明授权
    Method and apparatus for operating an electric vehicle drive system during periods of sensor malfunction 失效
    在传感器故障期间操作电动车辆驱动系统的方法和装置

    公开(公告)号:US5661380A

    公开(公告)日:1997-08-26

    申请号:US554498

    申请日:1995-11-07

    CPC分类号: B60L3/0023

    摘要: The present invention provides a protection apparatus in a control system for an electric vehicle which is capable of performing back-up driving by using a back-up control method, without using output from sensors even if the sensor in the control system for ordinary driving is failed. When at least one of the current sensor, the speed sensor and the accelerator sensor is detected to be abnormal, a back-up control voltage v1 is output as an abnormal signal from a running back-up control circuit. As a result, the running back-up control circuit sets the limiter of the output of the current control circuit to zero and switches the control signal to the inverter from vector control to V/f voltage control.

    摘要翻译: 本发明提供一种用于电动车辆的控制系统中的保护装置,其能够通过使用备用控制方法执行备用驱动,而不使用传感器的输出,即使用于普通驾驶的控制系统中的传感器是 失败了 当检测到电流传感器,速度传感器和加速器传感器中的至少一个异常时,备用控制电压v1作为来自运行的备用控制电路的异常信号输出。 结果,运行后备控制电路将电流控制电路的输出限幅器设置为零,并将控制信号从矢量控制切换到V / f电压控制。