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    • 1. 发明公开
    • TORQUE-DISTRIBUTION CONTROL DEVICE FOR A FOUR-WHEEL-DRIVE VEHICLE
    • DREHMOMENTVERTEILUNGS-STEUERVORRICHTUNGFÜREIN FAHRZEUG MIT VIERRADANTRIEB
    • EP2591937A1
    • 2013-05-15
    • EP11803597.1
    • 2011-07-05
    • Nissan Motor Co., Ltd
    • SUZUKI ShinichiOZAWA Yuuki
    • B60K17/348B60K23/04
    • B60W30/045B60K17/344B60K17/3515B60K23/0808B60W10/16B60W2720/403B60W2720/406F16H48/19F16H2048/205
    • When it is determined in step S14 that an over-steered state exists, in step S 17 a feedback control coefficient K1 for a rear wheel total drive force is set to 0 and a feedback control coefficient K2 for a rear wheel drive force difference is also set to 0 such that a two-wheel drive state is imposed. As a result, it is possible to avoid a turn cruising instability caused by cruising in four-wheel drive in an over-steered state. When it is determined in step S 15 that an under-steered state exists, in step S18 K1 = 1 and K2 = 0 are set such that four-wheel drive is allowed but a drive force difference is not set between the left and right rear wheels. As a result, when the under-steered state exists, excellent traction can be enjoyed by operating in four-wheel drive and the phenomenon of riding up a canted road surface due to a drive force difference set between the left and right rear wheels can be avoided.
    • 当在步骤S14中确定存在过转向状态时,在步骤S17中,后轮总驱动力的反馈控制系数K1被设定为0,后轮驱动力差的反馈控制系数K2也是 设定为0,使得施加两轮驱动状态。 结果,可以避免在过转向状态下在四轮驱动中巡航导致的转弯不稳定性。 当在步骤S15中确定存在欠转向状态时,在步骤S18中,K1 = 1和K2 = 0被设定为允许四轮驱动,但在左右后方没有设定驱动力差 车轮。 结果,当存在欠转向状态时,可以通过在四轮驱动中操作而获得优良的牵引力,并且由于左右后轮之间的驱动力差而产生的倾斜路面的骑行现象可以是 避免。
    • 3. 发明公开
    • DEVICE FOR CONTROLLING TORQUE DISTRIBUTION TO LEFT AND RIGHT WHEELS ON A VEHICLE
    • 一种用于控制扭矩分配在左,右侧车轮的车辆
    • EP2591939A1
    • 2013-05-15
    • EP11803591.4
    • 2011-07-05
    • Nissan Motor Co., Ltd
    • SUZUKI Shinichi
    • B60K23/04B60K17/344F16H48/30
    • F16H48/30B60K17/344B60K23/04B60K2023/043B60W10/16B60W30/045B60W2720/28B60W2720/403B60W2720/406F16H48/19F16H2048/205
    • A left-right drive force difference transient control computation value calculating section 43 uses a map search, based on a change rate dtΦ of a target yaw rate tΦ, to find a left-right rear wheel drive force difference transient control computation value ddΔTcLR, which is a basic target value for a turning response transiently requested by a driver. A left-right drive force difference transient control gain computing section 45 sets a left-right drive force difference transient control gain α to be smaller than 1 in a low vehicle speed region. A transient control computing section 33b multiplies the left-right rear wheel drive force difference transient control computing value ddΔTeLR by the left-right drive force difference transient control gain α to calculate a left-right rear wheel drive force difference transient control amount dΔTcLR and contributes the same to a left-right wheel drive force distribution control.
    • 左右驱动力差过渡控制运算值计算部43使用地图搜索,基于目标横摆率DT的变化率| T |,要找到一个左 - 右后轮驱动力差过渡控制运算值DD “TCLR,所有这些是用于通过驾驶员瞬时请求的转弯响应基本目标值。 左右驱动力差过渡控制增益运算部45将左右驱动力差过渡控制增益为±小于1在低车速区域。 瞬态控制运算部33b相乘的左右后轮驱动力差过渡控制计算值DD“由左右驱动力差过渡控制增益±TELR来计算左右后轮的驱动力差过渡控制量d “TCLR并有助于同向的左右轮驱动力分配控制。
    • 7. 发明公开
    • DEVICE FOR CONTROLLING TORQUE DISTRIBUTION TO LEFT AND RIGHT WHEELS ON A VEHICLE
    • 一种用于控制扭矩分配在左,右侧车轮的车辆
    • EP2591941A1
    • 2013-05-15
    • EP11803594.8
    • 2011-07-05
    • Nissan Motor Co., Ltd
    • SUZUKI Shinichi
    • B60K23/04F16H48/12
    • G06F17/00B60K17/344B60K17/3515B60K23/0808B60W10/16B60W30/045B60W2720/28B60W2720/403B60W2720/406F16H48/19F16H2048/204
    • A calculating section 43 finds a left-right rear wheel drive force difference transient control computation value dd Δ TcLR, which is a basic target value for a turning response transiently requested by a driver through a steering speed at current wheel speeds Vw (vehicle speed). A computing section 45 finds a left-right drive force difference transient control gain α based on a target yaw rate change rate dtφ such that the control gain α is smaller than 1 in a high target yaw rate change rate region. The computing value dd Δ TcLR is multiplied by the control gain α to calculate a left-right rear wheel drive force difference transient control amount d Δ TcLR and the same control amount is contributed to a left-right wheel drive force distribution control. As a result, during high-speed steering when the yaw rate gain tends to increase, the left-right drive force difference transient control amount is revised to a decreased value such that the transient control amount causes less of an increase in the yaw rate. In this way, the vehicle behavior can be prevented from becoming unstable.
    • 计算部43求出的左右后轮驱动力差过渡控制运算值DD“TCLR,所有这一切都为瞬时由驾驶员通过一个转向速度在当前轮请求的转弯响应基本目标值速度Vw(车速) , 一种计算部45查找基于目标横摆率变化率检测DTAE所做的控制增益小于±1在高目标横摆率变化率区域中的左右驱动力差过渡控制增益±。 所述计算值DD“被TCLR-乘以控制增益±来计算左右后轮的驱动力差过渡控制量d” TCLR和相同的控制量促成的左右轮驱动力分配控制。 其结果是,高速转向时横摆角速度增益趋于增大的过程中,左右驱动力差过渡控制量修正为减少价值寻求做了过渡控制量产生较少的偏航增长速度。 这样一来,车辆行为变得不稳定预防。
    • 8. 发明公开
    • DEVICE FOR CONTROLLING TORQUE DISTRIBUTION TO LEFT AND RIGHT WHEELS ON A VEHICLE
    • 一种用于控制扭矩分配在左,右侧车轮的车辆
    • EP2591940A1
    • 2013-05-15
    • EP11803593.0
    • 2011-07-05
    • Nissan Motor Co., Ltd
    • SUZUKI Shinichi
    • B60K23/04F16H48/12
    • G06F17/00B60K17/344B60K23/04B60K23/0808B60W10/16B60W30/045B60W2720/28B60W2720/403B60W2720/406F16H48/19F16H61/66259F16H2048/204
    • A vehicle left-right wheel drive force distribution control apparatus is proposed that is capable of improving the handling of a vehicle when a steering wheel of the vehicle is being returned toward a center position. The vehicle left-right wheel drive force distribution control apparatus executes a distributed output of a wheel drive force to left and right drive wheels in accordance with a control. The apparatus has a left-right drive force transient control amount computing means that computes a left-right drive force difference transient control amount based on a driver transient turn response request. The left-right drive force difference transient control amount computed by the left-right drive force transient control amount computing means contributes to the aforementioned control by being made smaller when the steering wheel is being returned toward a center position than when the steering wheel is being turned away from the center position.
    • 一种车辆的左右轮驱动力分配控制装置中,能够拟没被改进车辆的操纵当正在朝向中心位置返回的车辆的方向盘的。 在车辆左右轮驱动力分配控制装置执行的车轮驱动力的分布输出到左和右驱动轮中雅舞蹈与控制。 该装置具有左右驱动力过渡控制量计算bedeutet,DASS计算基于驾驶员瞬时转响应请求的左右驱动力差过渡控制量。 由左右驱动力过渡控制量通过计算装置有助于上述控制计算的左右驱动力差过渡控制量被变小。当方向盘被朝向比当方向盘是为中心位置返回 接通从中心位置离开。
    • 10. 发明公开
    • DEVICE FOR CONTROLLING TORQUE DISTRIBUTION TO LEFT AND RIGHT WHEELS ON A VEHICLE
    • 一种用于控制扭矩分配在左,右侧车轮的车辆
    • EP2591932A1
    • 2013-05-15
    • EP11803596.3
    • 2011-07-05
    • Nissan Motor Co., Ltd
    • SUZUKI Shinichi
    • B60K17/344
    • G06F17/00B60K17/344B60K23/04B60K2023/043B60W2720/14F16H48/19F16H2048/205
    • In a transient control computing section 33b, a left-right drive force difference transient control gain computing section 45 finds a left-right drive force difference transient control gain α that is smaller than 1 in a region where a target yaw rate change rate dtφ is small, i.e., a low speed steering region, and a left-right drive force difference transient control computation value calculating section 43 finds a left-right rear wheel drive force difference transient control computation value ddΔTcLR. The transient control computing section 33b then multiplies the left-right rear wheel drive force difference transient control computation value dΔTcLR by the left-right drive force difference transient control gain α to calculate the left-right rear wheel drive force difference transient control amount dΔTcLR and contributes the same to a drive force distribution control for left and right wheels (left and right rear wheels).
    • 在一个短暂的控制运算部33b,左右驱动力差过渡控制增益运算部45发现的左右驱动力差过渡控制增益±所做的是小于1的区域中的目标横摆率变化率DTAE是 小,即,低速转向区域,和左右驱动力差过渡控制运算值运算部43求出的左右后轮驱动力差过渡控制运算值DD“TCLR。 的过渡控制运算部33b然后乘以左右后轮驱动力差过渡控制运算值d“由左右驱动力差过渡控制增益±TCLR来计算左右后轮的驱动力差过渡控制量 D“TCLR并有助于相同,为左和右轮(左后轮和右后轮)的驱动力分配控制。