Control of toroidal continuously variable transmission
    1.
    发明授权
    Control of toroidal continuously variable transmission 失效
    环形无级变速器控制

    公开(公告)号:US06604039B2

    公开(公告)日:2003-08-05

    申请号:US10197499

    申请日:2002-07-18

    IPC分类号: G06F1700

    摘要: The trunnion (23) of a vehicle toroidal continuously variable transmission is displaced by a step motor (52) via a control valve (56) and oil pressure servo cylinder (50) in order to vary a speed ratio of the transmission. A controller (80) calculates a target value (z*) of a control variable (z) based on an accelerator pedal depression amount (APS) and output disk rotation speed (&ohgr;co) (S5). Further, a time-variant coefficient (f) showing the relation between the trunnion displacement (y) and variation rate ({dot over (&phgr;)}) of the gyration angle (&phgr;) of the power roller, is calculated (S10). The error between the speed change response of the transmission and a target linear characteristic can be decreased by determining a command value (u) to the step motor (52) under a control gain determined based on a time differential ({dot over (f)}) of the coefficient (f) (S20).

    摘要翻译: 车辆环形无级变速器的耳轴(23)经由控制阀(56)和油压伺服缸(50)由步进电机(52)移位,以便改变变速器的速比。 控制器(80)基于加速器踏板下压量(APS)和输出盘转速(ωgaco)(S5)来计算控制变量(z)的目标值(z *)。 此外,计算表示耳轴位移(y)与动力辊的回转角(phi)的变化率({dot over(phi))之间的关系的时变系数(f)(S10),误差 可以通过基于时间差({dot over(f))确定的控制增益来确定对步进电动机(52)的指令值(u)来减小变速器的变速响应与目标线性特性之间的差异 系数(f)(S20)。

    Driving force control system for automotive vehicle
    2.
    发明授权
    Driving force control system for automotive vehicle 有权
    汽车驱动力控制系统

    公开(公告)号:US06278915B1

    公开(公告)日:2001-08-21

    申请号:US09501299

    申请日:2000-02-09

    IPC分类号: B60K4112

    摘要: A driving force control system for an automotive vehicle using driving torque produced by at least one of an internal combustion engine and an electric motor for propulsion, and including a battery and a power-transmission mechanism having a continuously variable transmission, comprises sensors detecting vehicle speed, engine speed, an accelerator operating amount, a state of charge of the battery. An electronic control unit calculates a target engine speed needed to realize the vehicle speed, the target driving torque and the target generated electric energy at the lowest fuel consumption, considering an efficiency of each of the engine, the electric motor, and the power-transmission mechanism, so as to operate the engine, the electric motor, and/or the power-transmission mechanism always at their optimum operating points depending on the ratio of a first time rate of doing work for the driver's required driving torque to a second time rate of doing work for the required generated electric energy, as well as the sum of the first and second time rates.

    摘要翻译: 一种使用由内燃机和推进用电动机中的至少一种产生的驱动转矩的机动车辆的驱动力控制系统,包括电池和具有无级变速器的动力传递机构,具有检测车速的传感器 ,发动机速度,加速器操作量,电池的充电状态。 考虑到发动机,电动机和动力传递的效率,电子控制单元计算在最低燃料消耗下实现车速,目标驱动转矩和目标发电电力所需的目标发动机转速 机构,以使发动机,电动机和/或动力传递机构总是处于其最佳操作点,这取决于驾驶员所需驱动扭矩的第一工作时间速率与第二时间速率的比率 对所需生成的电能进行工作,以及第一和第二时间速率的总和。

    Shift control apparatus and method for hybrid transmission applicable to hybrid vehicle
    4.
    发明授权
    Shift control apparatus and method for hybrid transmission applicable to hybrid vehicle 有权
    用于混合动力车辆的变速控制装置和方法

    公开(公告)号:US07097586B2

    公开(公告)日:2006-08-29

    申请号:US10816273

    申请日:2004-04-02

    IPC分类号: B60K1/02 F16H3/72

    摘要: In shift control apparatus and method for a hybrid transmission suitable for use in a hybrid vehicle, at least one of a target drive torque and a target input revolution acceleration to be a value within a realizable region to be set as a drive torque command value or an input revolution command acceleration is corrected in such a manner that polarities of the target drive torque and the target input revolution acceleration are left unchanged, in a case where a combination of the target drive torque with the target input revolution acceleration falls out of a realizable region on two-dimensional coordinates of the drive torque and the input revolution acceleration, the drive torque command value and the input revolution acceleration command value contributing to controls of the main power source and the motor/generators in place of the target drive torque and the target input revolution acceleration.

    摘要翻译: 在适用于混合动力车辆的混合动力传动系的变速控制装置和方法中,目标驱动转矩和目标输入转速加速度中的至少一个为要设定为驱动转矩指令值的可实现区域内的值, 在目标驱动转矩与目标输入转速加速度的组合不能实现的情况下,输入转速指令加速度被校正为使得目标驱动转矩和目标输入转速加速度的极性保持不变 驱动转矩和输入转速加速度的二维坐标上的区域,驱动转矩指令值和有助于主动力源和电动机/发电机的控制的输入转速加速指令值代替目标驱动转矩和 目标输入转速加速。

    Motor torque control apparatus and method for automotive vehicle
    5.
    发明授权
    Motor torque control apparatus and method for automotive vehicle 有权
    汽车扭矩控制装置及方法

    公开(公告)号:US07164247B2

    公开(公告)日:2007-01-16

    申请号:US11180559

    申请日:2005-07-14

    IPC分类号: H02P7/00

    摘要: A motor torque control apparatus for an automotive vehicle includes a transmission which has either one of a fixed speed ratio and a variable speed ratio; at least one motor/generator coupled with the transmission as a propelling power source of the vehicle, a power of the power source being transmitted to a road wheel for propulsion of the vehicle through the transmission; and a controller configured to be electrically connected to the motor/generator for motor torque control. Moreover, this controller includes a disturbance observer that estimates a driving force, and a motor torque control section that controls the driving force estimated by the disturbance observer, to bring the estimated driving force closer to a target driving force by way of servo control.

    摘要翻译: 用于机动车辆的电动机转矩控制装置包括具有固定转速比和可变速比之一的变速器; 至少一个电动机/发电机与作为车辆的推进动力源的变速器相连,动力源被传递到车轮,用于推动车辆通过变速器; 以及控制器,被配置为电连接到电动机/发电机用于电动机转矩控制。 此外,该控制器包括估计驱动力的扰动观测器和控制由扰动观测器估计的驱动力的电动机转矩控制部,通过伺服控制使估计的驱动力接近目标驱动力。

    Enhanced ratio control in a toroidal drive

    公开(公告)号:US06658338B2

    公开(公告)日:2003-12-02

    申请号:US10062499

    申请日:2002-02-05

    IPC分类号: G06F700

    CPC分类号: F16H61/6648 Y10T477/619

    摘要: Enhanced ratio control in a toroidal drive of a T-CVT is provided. A factor of proportionality is computed by which a trunnion axial displacement and a T-CVT ratio rate are related. A filter in the form of a characteristic equation is established. This filter includes a physical quantity indicative of the T-CVT ratio and a physical quantity indicated by an actuator command, as inputs, a quasi-state quantity, as a state quantity, and a transition coefficient for the quasi-state quantity. The transition coefficient includes an observer gain. The quasi-state quantity is computed using the filter. An estimated quantity of a system state quantity of the T-CVT is computed using the quasi-state quantity, the observer gain, and a trunnion angular position. The system state quantity includes at least the first physical quantity. The observer gain is corrected in response to the factor of proportionality to keep the transition coefficient unaltered.

    Toroidal continuously variable transmission control apparatus
    8.
    发明授权
    Toroidal continuously variable transmission control apparatus 有权
    环形无级变速器控制装置

    公开(公告)号:US06931316B2

    公开(公告)日:2005-08-16

    申请号:US10436162

    申请日:2003-05-13

    CPC分类号: F16H61/6648 Y10T477/6243

    摘要: In a toroidal continuously variable transmission (TCVT) control apparatus with a variator unit and a ratio control hydraulic system, an electronic TCVT control unit electronically feedback-controls a transmission ratio based on a deviation from a desired transmission ratio, and generates a normal-period command signal to be input to a step motor for compensating for the deviation. The control unit determines whether the deviation can be compensated for by electronically feedback-controlling the transmission ratio based on the deviation and generates an abnormal-period command signal to be input to the step motor to realize a step-motor displacement capable of shifting or diverging the transmission ratio to a speed-reduction side, while keeping a trunnion out of contact with a stopper in the direction of the trunnion axis, when the deviation cannot be compensated for by electronically feedback-controlling the transmission ratio based on the deviation.

    摘要翻译: 在具有变倍单元和比例控制液压系统的环形无级变速器(TCVT)控制装置中,电子TCVT控制单元基于与期望的传动比的偏差电子反馈控制传动比,并且产生正常时段 指令信号输入到步进电机,以补偿偏差。 控制单元通过基于偏差的电子反馈控制传动比来确定是否可以补偿偏差,并产生要输入到步进电机的异常期间指令信号,以实现能够移动或发散的步进电机位移 与减速侧相对的传动比,同时在通过电子反馈控制基于偏差的传动比不能补偿偏差的同时,在耳轴的方向上保持与止动器接触的耳轴。

    Motor torque control apparatus and method for automotive vehicle
    9.
    发明申请
    Motor torque control apparatus and method for automotive vehicle 有权
    汽车扭矩控制装置及方法

    公开(公告)号:US20060017414A1

    公开(公告)日:2006-01-26

    申请号:US11180559

    申请日:2005-07-14

    IPC分类号: H02P7/00

    摘要: A motor torque control apparatus for an automotive vehicle includes a transmission which has either one of a fixed speed ratio and a variable speed ratio; at least one motor/generator coupled with the transmission as a propelling power source of the vehicle, a power of the power source being transmitted to a road wheel for propulsion of the vehicle through the transmission; and a controller configured to be electrically connected to the motor/generator for motor torque control. Moreover, this controller includes a disturbance observer that estimates a driving force, and a motor torque control section that controls the driving force estimated by the disturbance observer, to bring the estimated driving force closer to a target driving force by way of servo control.

    摘要翻译: 用于机动车辆的电动机转矩控制装置包括具有固定转速比和可变速比之一的变速器; 至少一个电动机/发电机与作为车辆的推进动力源的变速器相连,动力源被传递到车轮,用于推动车辆通过变速器; 以及控制器,被配置为电连接到电动机/发电机用于电动机转矩控制。 此外,该控制器包括估计驱动力的扰动观测器和控制由扰动观测器估计的驱动力的电动机转矩控制部,以通过伺服控制使估计的驱动力接近目标驱动力。

    Shift control of continuously-variable transmission
    10.
    发明授权
    Shift control of continuously-variable transmission 失效
    无级变速器变速控制

    公开(公告)号:US06909953B2

    公开(公告)日:2005-06-21

    申请号:US10436077

    申请日:2003-05-13

    IPC分类号: F16H61/662 F16H61/18

    摘要: A toroidal continuously-variable transmission shift control apparatus includes a controlling section to control an actual transmission ratio toward a target transmission ratio by producing a control command in one of a forward traveling control mode for a forward vehicle traveling state, and a reverse traveling control mode; and a control modifying section arranged to select one of the forward traveling control mode and the reverse traveling control mode in accordance with a first parameter representing a driver's intention. The control modifying section is configured to detect a change of the vehicle traveling direction in accordance with a second parameter which is the actual transmission ratio, and to modify the shift control of the toroidal continuously-variable transmission so as to shift the actual transmission ratio to a speed decreasing side upon detection of the change of the vehicle traveling direction.

    摘要翻译: 环形无级变速器变速控制装置包括:控制部,其通过在前进行驶状态的前进行驶控制模式和逆行驶控制模式之一中产生控制指令来控制朝向目标变速比的实际变速比 ; 以及控制修改部,其被配置为根据表示驾驶者意图的第一参数来选择前进行驶控制模式和反向行驶控制模式中的一个。 控制修正部被配置为根据作为实际传动比的第二参数来检测车辆行驶方向的变化,并且修改环形无级变速器的变速控制,以将实际变速比转换为 在检测到车辆行驶方向的变化时,减速侧。