Vehicle stability control apparatus
    41.
    发明授权
    Vehicle stability control apparatus 有权
    车辆稳定性控制装置

    公开(公告)号:US06205375B1

    公开(公告)日:2001-03-20

    申请号:US09453062

    申请日:1999-12-02

    申请人: Genpei Naito

    发明人: Genpei Naito

    IPC分类号: C06F700

    摘要: A vehicle stability control apparatus calculates a desired yaw rate from the angle of the steering wheel and vehicle's velocity and always executes control so as to have the actual yaw rate correspond to the desired yaw rate. Both of the front wheels' braking force and the rear wheels' braking force are operated according to the amendment momentum calculated by a control in response to the yaw rate difference. However, the actual yaw rate cannot be accurately corresponded to the desired yawing moment without delay when the driver operates a steering wheel rapidly in the emergency evasion condition, the control unit increases the amendment momentum right after the emergency evasion condition. Furthermore, the control unit decreases the amendment momentum when the vehicle is converging on straight-ahead driving.

    摘要翻译: 车辆稳定性控制装置根据方向盘的角度和车辆的速度来计算期望的偏航率,并且总是执行控制,以使实际的横摆率与期望的偏航率相对应。 前轮的制动力和后轮的制动力都是根据由控制器响应于横摆率差异而计算出的修正动量来操作的。 然而,当驾驶员在紧急逃避状态下快速操作方向盘时,实际横摆率不能准确地对应于期望的横摆力矩,而控制单元在紧急逃避状态之后立即增加修正动量。 此外,当车辆正在收敛于直行驱动时,控制单元减小修正动量。

    Traction control system for four-wheel drive vehicle
    42.
    发明授权
    Traction control system for four-wheel drive vehicle 失效
    四轮驱动车辆牵引控制系统

    公开(公告)号:US5168955A

    公开(公告)日:1992-12-08

    申请号:US594154

    申请日:1990-10-09

    申请人: Genpei Naito

    发明人: Genpei Naito

    摘要: A traction control system is provided which is applicable to a four-wheel drive vehicle in which a torque split system is incorporated. The torque split system is operable to distribute engine torque to front and rear wheels by an engine torque distribution ratio of front to rear wheels variable based on a difference in rotational speeds between the front and rear wheels. The traction control system is responsive to a slippage ratio of the rotational speeds of the wheels to a vehicle speed greater than a preselected threshold to reduce engine torque to control the traction of the wheels. Therefore, the traction control is effectively carried out while ensuring yaw control of a vehicle body by means of the torque split control.

    摘要翻译: 提供了一种牵引控制系统,其适用于其中结合有扭矩分配系统的四轮驱动车辆。 扭矩分配系统可操作以通过前后轮的发动机扭矩分配比将前轮和后轮的发动机扭矩分配为可变的,基于前后轮之间的转速差。 牵引控制系统响应于车轮的转速与大于预选阈值的车速的滑动比,以减小发动机扭矩以控制车轮的牵引力。 因此,通过转矩分配控制来确保车身的偏航控制,有效地进行牵引控制。

    Differential limiting force control system and method for vehicle
    43.
    发明授权
    Differential limiting force control system and method for vehicle 失效
    差速限制力控制系统和车辆方法

    公开(公告)号:US5168953A

    公开(公告)日:1992-12-08

    申请号:US687511

    申请日:1991-04-19

    申请人: Genpei Naito

    发明人: Genpei Naito

    CPC分类号: B60K23/04 B60K17/20

    摘要: A control system for controlling a differential (or slip) limiting force of a limited slip differential of a vehicle comprises a sensor group for sensing a vehicle speed and a wheel speed difference between rotational speeds of left and right drive wheels, and a controller for controlling the differential limiting force by controlling a clutch engagement force of a differential limiting clutch. To improve both of a driving capability on a split friction road surface or a rough road and a vehicle stability in the high speed range, the controller increases the differential limiting force with increase in the wheel speed difference according to a preset control characteristic, and modifying the control characteristic between the differential limiting force and the wheel speed difference so that the differential limiting force tends to be lower when the vehicle speed becomes higher.

    摘要翻译: 用于控制车辆的限滑差速器的差速(或滑差)限制力的控制系统包括用于感测车速的传感器组和左右驱动轮的转速之间的车轮速度差,以及用于控制 通过控制差速限制离合器的离合器接合力来产生差速限制力。 为了提高分裂摩擦路面或粗糙路面上的驾驶能力以及高速范围内的车辆稳定性,控制器根据预设的控制特性随着车轮速度差的增加而增大差速限制力,并且修改 差速限制力和车轮速度差之间的控制特性使得当车速变高时,差速限制力趋于较低。

    Control system for limited-slip differential gear unit associated with
wheel-spinning preventive traction control system
    44.
    发明授权
    Control system for limited-slip differential gear unit associated with wheel-spinning preventive traction control system 失效
    与转轮预防牵引力控制系统相关的限滑差速减速器控制系统

    公开(公告)号:US4790404A

    公开(公告)日:1988-12-13

    申请号:US25171

    申请日:1987-03-12

    申请人: Genpei Naito

    发明人: Genpei Naito

    摘要: A control system for a limited-slip differential gear unit is cooperative with a traction control system to provide better vehicle driving stability. The control system for a limited-slip differential gear unit is capable of optimizing driving torque transmission characteristics for improving cornering stability of the vehicle. The limited-slip differential gear unit control system, according to the invention, is operative in response to difference of wheel slippages at driven wheels for slip limiting force in order to adjust wheel slippage of heavier load driven wheel at a predetermined value. The control system is cooperative with a traction control system which is detective of wheel slippage due to wheel spinning caused by excessive driving torque to be applied to the driven wheels and adjusting the driving torque to be distributed to the driven wheels.

    摘要翻译: 用于限滑差速齿轮单元的控制系统与牵引力控制系统协作以提供更好的车辆驾驶稳定性。 用于限滑差速减速器的控制系统能够优化用于改善车辆转弯稳定性的驱动转矩传递特性。 根据本发明的限滑差速减速器控制系统响应于驱动轮处的滑轮的滑动限制力的差异而工作,以便将重载荷驱动轮的车轮打滑调整到预定值。 控制系统与牵引控制系统协调,该牵引力控制系统检测由于施加到从动轮的过大的驱动转矩引起的车轮旋转,并且调节分配给从动轮的驱动转矩的轮滑动。

    Driving torque distribution control system for 4WD vehicle
    45.
    发明授权
    Driving torque distribution control system for 4WD vehicle 失效
    用于4WD车辆的驱动扭矩分配控制系统

    公开(公告)号:US4773500A

    公开(公告)日:1988-09-27

    申请号:US906309

    申请日:1986-09-12

    IPC分类号: B60K23/08 F16D48/12 B60K17/34

    CPC分类号: B60K23/0808

    摘要: A four wheel drive system has an interaxle multiple disc friction clutch, an actuator for varying torque transmitted through the clutch to a front wheel drive shaft by varying a clutch pressure of the clutch, first and second sensors for sensing rotational speeds of the front wheel and rear wheel drive shafts, a third element for producing a third signal, and a control unit for controlling a driving torque distribution between the front and rear wheel drive shafts by sending a control signal to the actuator. The control means increases the torque transmitted through the clutch with increase in a speed difference between the front wheel and rear wheel drive shafts in accordance with one of characteristics selected in accordance with the third signal. The third element is designed to find a condition of the vehicle which can be controlled by a driver of the vehicle, and may take the form of an accelerator position sensor or a manually operated selector switch.

    摘要翻译: 四轮驱动系统具有齿间多盘摩擦离合器,用于通过改变离合器的离合器压力而将离合器传递到前轮驱动轴的扭矩变化的致动器,用于感测前轮转速的第一和第二传感器, 后轮驱动轴,用于产生第三信号的第三元件,以及用于通过向致动器发送控制信号来控制前轮驱动轴和后轮驱动轴之间的驱动转矩分配的控制单元。 根据根据第三信号选择的特性之一,控制装置通过增加前轮和后轮驱动轴之间的速度差来增加传递通过离合器的扭矩。 第三元件被设计成找到可以由车辆的驾驶员控制的车辆的状态,并且可以采取加速器位置传感器或手动操作的选择器开关的形式。

    Vehicle dynamics control apparatus
    46.
    发明授权
    Vehicle dynamics control apparatus 有权
    车辆动力学控制装置

    公开(公告)号:US07580785B2

    公开(公告)日:2009-08-25

    申请号:US12111710

    申请日:2008-04-29

    IPC分类号: B60K31/00

    摘要: In a vehicle dynamics control apparatus capable of balancing a vehicle dynamics stability control system and a lane deviation prevention control system, a cooperative control section is provided to make a cooperative control between lane deviation prevention control (LDP) and vehicle dynamics stability control (VDC). When a direction of yawing motion created by LDP control is opposite to a direction of yawing motion created by VDC control, the cooperative control section puts a higher priority on VDC control rather than LDP control. Conversely when the direction of yawing motion created by LDP control is identical to the direction of yawing motion created by VDC control, a higher one of the LDP desired yaw moment and the VDC desired yaw moment is selected as a final desired yaw moment, to prevent over-control, while keeping the effects obtained by both of VDC control and LDP control.

    摘要翻译: 在能够平衡车辆动力学稳定性控制系统和车道偏离防止控制系统的车辆动力学控制装置中,提供协调控制部分,以在车道偏离防止控制(LDP)和车辆动力学稳定性控制(VDC)之间进行协调控制, 。 当通过LDP控制产生的偏航运动的方向与由VDC控制产生的偏航运动的方向相反时,协作控制部分对VDC控制而不是LDP控制具有更高的优先级。 相反,当通过LDP控制产生的偏航运动的方向与由VDC控制产生的偏航运动的方向相同时,LDP期望的横摆力矩和VDC期望的横摆力矩中较高的一个被选作最终期望的横摆力矩,以防止 过度控制,同时保持由VDC控制和LDP控制两者获得的效果。

    Vehicle dynamics control apparatus
    48.
    发明授权
    Vehicle dynamics control apparatus 有权
    车辆动力学控制装置

    公开(公告)号:US07058494B2

    公开(公告)日:2006-06-06

    申请号:US10735778

    申请日:2003-12-16

    IPC分类号: B60W40/12 B60T8/24

    摘要: In a vehicle dynamics control apparatus enabling vehicle dynamics control and lane deviation prevention control, a processor of a control unit is programmed for determining a driving stability including a vehicle driveability and a vehicle stability, based on at least a steer angle, and for executing the vehicle dynamics control by producing a yaw moment corresponding to a controlled variable of the vehicle dynamics control when the driving stability is deteriorated, and for executing the lane deviation prevention control by producing a yaw moment corresponding to a controlled variable of the lane deviation prevention control when there is a possibility of lane deviation. The processor is further programmed for softening a criterion, which is used to determine the driving stability, based on the controlled variable of the lane deviation prevention control, only when the vehicle dynamics control is inoperative.

    摘要翻译: 在实现车辆动力学控制和车道偏离防止控制的车辆动力学控制装置中,控制单元的处理器被编程用于基于至少一个转向角来确定包括车辆行驶性能和车辆稳定性在内的行驶稳定性,并且用于执行 通过在驾驶稳定性劣化时产生与车辆动力学控制的受控变量相对应的偏航力矩的车辆动力学控制,以及通过产生与车道偏离防止控制的控制变量对应的横摆力矩来执行车道偏离防止控制, 有车道偏差的可能性。 只有当车辆动力学控制不起作用时,处理器进一步被编程为基于车道偏离防止控制的控制变量来软化用于确定驾驶稳定性的标准。