Shift control device and method for hybrid vehicle
    21.
    发明公开
    Shift control device and method for hybrid vehicle 有权
    混合动力车辆的换档控制装置和方法

    公开(公告)号:EP1974971A3

    公开(公告)日:2008-10-15

    申请号:EP08012035.5

    申请日:2003-03-13

    IPC分类号: B60K6/365

    摘要: The present invention relates to a shift control device for a hybrid vehicle comprising: a differential mechanism (2) including at least four rotating elements (Ss,Rd,C,Rs,Sd) whose rotating states are determined by rotating states of two of the at least four rotating elements, wherein said rotating elements connect a driving source (Engine), two motor/generators (MG1,MG2) and an output (OUT); and a controller programmed to: calculate a target driving power (Po * ) based on a driving condition; calculate a driving source speed (Ne γ) and a driving source torque (Te γ) under optimum fuel efficiency wherein the target driving power (Po * ) is realized; calculate a first motor/generator torque (T1) and a second motor/generator torque (T2) based on the driving source speed (Ne γ), the driving source torque (Te γ), a current output speed (No) and the target driving power (Po * ); make a first judgment as to whether both the first motor/generator torque (T1) is larger than a first motor/generator maximum torque (T1 max ) and the second motor/generator torque (T2) is larger than a second motor/generator maximum torque (T2 max ); when the first judgment shows at least one of the first and second motor/generator torques (T1,T2) being larger than the respective first and second motor/generator maximum torques (T1 max ,T2 max ), decrease the first driving source speed (Ne γ) until both of the first and second motor/generator torques (T1,T2) are equal to or smaller than the first and second motor/generator maximum torques (T1 max ,T2 max ), and a corresponding shift control method for a hybrid vehicle.

    摘要翻译: 混合动力车辆的变速控制装置技术领域本发明涉及混合动力车辆的变速控制装置,该混合动力车辆的变速控制装置具备:差动机构(2),该差动机构包括至少四个旋转要素(Ss,Rd,C,Rs,Sd) 至少四个旋转元件,其中所述旋转元件连接驱动源(发动机),两个电动机/发电机(MG1,MG2)和输出(OUT); 以及控制器,其被编程为:基于驾驶条件计算目标驱动力(Po *); 计算实现目标驱动功率(Po *)的最佳燃料效率下的驱动源速度(Neγ)和驱动源转矩(Teγ) 基于驱动源速度(Neγ),驱动源转矩(Teγ),当前输出速度(No)以及目标值来计算第一电动机/发电机转矩(T 1)和第二电动机/ 驱动功率(Po *); 首先判断第一电动机/发电机转矩(T1)是否大于第一电动机/发电机最大转矩(T1max)并且第二电动机/发电机转矩(T2)是否大于第二电动机/发电机最大转矩 (T2max); 当第一判断显示第一和第二电动机/发电机转矩(T1,T2)中的至少一个大于相应的第一和第二电动机/发电机最大转矩(T1max,T2max)时,减小第一驱动源速度(Neγ )直到第一和第二电动机/发电机转矩(T1,T2)都等于或小于第一和第二电动机/发电机最大转矩(T1max,T2max),以及用于混合动力车辆的对应换档控制方法。

    Method of operating a hybrid-vehicle drive system
    28.
    发明公开
    Method of operating a hybrid-vehicle drive system 有权
    操作混合动力车辆驱动系统的方法

    公开(公告)号:EP1514716A3

    公开(公告)日:2005-06-15

    申请号:EP04028725.2

    申请日:2002-10-21

    IPC分类号: B60K6/04

    摘要: There is provided a method of operating a hybrid-vehicle drive system in which an internal combustion engine (1), a first electric motor (8) and a second electric motor (12) are combined to provide a driving source for a hybrid vehicle, wherein an output shaft (2) of the internal combustion engine (1) and the first electric motor (8) are connected via a power distribution mechanism (3) to a wheel drive shaft (11), the wheel drive shaft (11) is connected via a connecting portion (16) to the second electric motor (12), and a transmission (100) is provided on at least one of the wheel drive shaft (11) and the connecting portion (16) of the second electric motor (12) with the wheel drive shaft (11). The method comprises the step of changing a ratio of a first torque produced at vehicle axles by the internal combustion engine (1) to a second torque produced at the vehicle axles by the second electric motor (12) at each gear position of the transmission (100) from a first ratio of the first torque to the second torque when both of the internal combustion engine and the second electric motor operate normally to a second ratio of the first torque to the second torque when one of the internal combustion engine and the second electric motor is faulty.

    摘要翻译: 提供了一种混合动力车辆驱动系统的操作方法,其中内燃机(1),第一电动机(8)和第二电动机(12)被组合以提供用于混合动力车辆的驱动源, 其特征在于,所述内燃机(1)的输出轴(2)和所述第一电动机(8)通过动力分配机构(3)与车轮驱动轴(11)连接,所述车轮驱动轴(11)为 (16)连接到第二电动机(12),并且变速器(100)设置在第二电动机(12)的轮驱动轴(11)和连接部分(16)中的至少一个上。 12)与四轮驱动轴(11)连接。 该方法包括改变在由内燃发动机(1)的车辆的车轴产生的由在传输的每个齿轮位置的第二电动机(12)在车辆的车轴中产生的第二转矩的第一转矩的比的步骤( 当所述内燃机和所述第二电动机中的一个在所述内燃机和所述第二电动机中的一个内燃机和所述第二电动机中的一个被正常地操作时达到所述第一转矩对所述第二转矩的第二比率时,从所述第一转矩与所述第二转矩的第一比率, 电动机故障。

    Method of operating a hybrid-vehicle drive system
    30.
    发明公开
    Method of operating a hybrid-vehicle drive system 有权
    Verfahren zum Betrieb eines Antriebssytems eines Hybridfahrzeuges

    公开(公告)号:EP1520743A2

    公开(公告)日:2005-04-06

    申请号:EP04028726.0

    申请日:2002-10-21

    IPC分类号: B60K6/04

    摘要: There is provided a method of operating a hybrid-vehicle drive system in which an internal combustion engine (1), a first electric motor (8) and a second electric motor (12) are combined to provide a driving source for a hybrid vehicle, wherein an output shaft (2) of the internal combustion engine (1) and the first electric motor (8) are connected via a power distribution mechanism (3) to a wheel drive shaft (11), a transmission (100) having a plurality of gear positions is provided on the wheel drive shaft (11), and the wheel drive shaft (11) is connected via a connecting portion (16) to the second electric motor (12). The method comprises steps of: setting a gear position of the transmission (100) to a first gear position having a predetermined high-speed gear ratio as a first gear ratio, and maintaining the transmission in the first gear position irrespective of changes in a vehicle speed, as long as the hybrid-vehicle drive system is able to provide a required value of a torque at vehicle axles while the internal combustion engine (1) is operated at a high fuel efficiency.

    摘要翻译: 提供了一种操作混合动力车辆驱动系统的方法,其中内燃机(1),第一电动机(8)和第二电动机(12)组合以提供混合动力车辆的驱动源, 其特征在于,所述内燃机(1)和所述第一电动机(8)的输出轴(2)经由配电机构(3)与轮驱动轴(11)连接,所述变速器(100)具有多个 的齿轮位置设置在车轮驱动轴(11)上,并且车轮驱动轴(11)经由连接部(16)连接到第二电动机(12)。 该方法包括以下步骤:将变速器(100)的齿轮位置设定为具有预定高速齿轮比的第一齿轮位置作为第一齿轮比,并且将变速器保持在第一档位,而与车辆的变化无关 速度,只要混合动力车辆驱动系统能够在内燃机(1)以高燃料效率运转时能够在车辆轴上提供所需的扭矩值。