Engine start control system for hybrid vehicle
    73.
    发明公开
    Engine start control system for hybrid vehicle 有权
    Motorstart-Steuersystemfürein Hybridfahrzeug

    公开(公告)号:EP1970240A2

    公开(公告)日:2008-09-17

    申请号:EP08152643.6

    申请日:2008-03-12

    摘要: An engine start control system for starting the engine (2) of a hybrid vehicle operated in an EV drive mode. The system responds quickly to an acceleration request while limiting unpleasant deceleration sensations. The hybrid vehicle has a first clutch (3) disposed between the engine (2) and motor/generator (1). An electric drive mode exists in which the first clutch (3) is disengaged and the driving torque is provided only by the motor/generator (1), and a hybrid drive mode exists in which the first clutch (3) is engaged and the driving torque is provided by both the engine (2) and motor/generator (1). The system uses an engine start shift pattern that is high-geared as compared with a normal shift pattern. Shift control of the transmission (5) is performed using the engine start shift pattern when an engine start request arises. The engine (2) is started by controlling the engagement of the first clutch (3) after performing the shift control.

    摘要翻译: 一种用于启动以EV驱动模式操作的混合动力车辆的发动机(2)的发动机起动控制系统。 系统快速响应加速请求,同时限制令人不快的减速感。 混合动力车辆具有设置在发动机(2)和电动机/发电机(1)之间的第一离合器(3)。 存在其中第一离合器(3)脱离并且仅由电动机/发电机(1)提供驱动转矩的电驱动模式,并且存在混合动力驱动模式,其中第一离合器(3)接合并且驱动 发动机(2)和电动机/发电机(1)都提供扭矩。 该系统使用与正常换档模式相比高发动机的发动机起动换档模式。 当发动机起动请求出现时,使用发动机起动换档模式进行变速器(5)的变速控制。 通过在执行变速控制之后控制第一离合器(3)的接合来启动发动机(2)。

    A method of, and a control system for regulating output torque of an internal combustion engine
    79.
    发明公开
    A method of, and a control system for regulating output torque of an internal combustion engine 失效
    用于调节内燃机的输出转矩的方法和控制系统

    公开(公告)号:EP1628009A2

    公开(公告)日:2006-02-22

    申请号:EP05077106.2

    申请日:1997-08-20

    申请人: Cummins, Inc.

    摘要: An engine control system 10 is operable to provide an engine fueling rate equal to the larger of a first engine fueling rate at which the resulting engine torque is limited by a maximum input torque capacity of a presently engaged gear ratio of the transmission 16 and a second engine fueling rate at which the resulting engine torque is limited by a nominal input torque capacity of the transmission 16. The foregoing technique can be enabled at all times, or alternatively only after determination that the vehicle is experiencing deceleration under heavy engine load conditions. The engine control system 10 may be further operable to determine a third engine fueling rate at which the resulting engine output torque is limited by a maximum operating torque capacity of the transmission propeller shaft 18, as well as a fourth engine fueling rate at which the resulting engine output torque is limited by a maximum operating torque capacity of the drive axle 20 connected thereto. The actual engine fueling rate is then chosen to be the minimum of the larger of the first and second engine fueling rates, the third engine fueling rate, and the fourth engine fueling rate. This technique can be enabled either at all times, or alternatively only when the presently engaged gear ratio is one of a set of lower gear ratios of the transmission 16.

    摘要翻译: 发动机控制系统10可操作以提供等于第一发动机燃料添加率中较大的发动机燃料添加率,在第一发动机燃料添加率下,所得到的发动机转矩受到变速器16当前接合传动比的最大输入转矩容量的限制, 发动机燃料加注速率,在该速率下,所得到的发动机扭矩受变速器16的额定输入扭矩容量限制。上述技术可以始终启用,或者可选地仅在确定车辆在重型发动机负荷条件下经历减速之后启用。 发动机控制系统10可进一步可操作以确定第三发动机燃料添加速率,在该第三发动机燃料添加速率下,所得到的发动机输出转矩受传动螺旋桨轴18的最大操作转矩容量限制,以及第四发动机燃料添加速率, 发动机输出扭矩受到与其连接的驱动轴20的最大操作扭矩容量的限制。 然后将实际的发动机燃料供给率选择为第一和第二发动机燃料供给率中的较大值,第三发动机燃料供给率和第四发动机燃料供给率中的最小值。 该技术可以始终启用,或者可选地仅当当前接合的传动比是变速器16的一组较低传动比中的一个时启用。