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    • 4. 发明申请
    • POWER TRANSFER DEVICE
    • 电力传输设备
    • US20090227421A1
    • 2009-09-10
    • US12398935
    • 2009-03-05
    • Tomohiro SAITO
    • Tomohiro SAITO
    • B60W10/02
    • B60K23/0808B60K17/35B60W2510/104B60W2540/103F16D2500/10431F16D2500/31F16D2500/3144F16D2500/50293F16D2500/508F16D2500/70426Y10T477/6418Y10T477/753
    • The object of the present invention is to suppress the generation of abnormal noise from a transmission system that occurs when a vehicle is turning. A front wheel output shaft is directly linked with the transmission system, and a rear wheel output shaft is linked to the transmission system via a transfer clutch. When the front wheel output shaft rpm Nf and the rear wheel output shaft rpm Nr separate from each other beyond a specified value (α2) while turning a corner, and then the accelerator pedal is released and the engine rpm Ne and turbine rpm Nt approach each other beyond a specified value (β2), and then if vibration at a specified vibration frequency appears in the front wheel output shaft rpm Nf (γ2), the duty ratio Rd of the clutch pressure control valve 52 is decreased (δ2). Next, as the duty ratio Rd decreases, when it is determined that vibration in the front wheel output shaft rpm Nf has been eliminated (ε2), normal slip control is restored, and control is performed so that the duty ratio Rd is increased again (ζ2). By doing this, it is possible to suppress vibration of the front wheel output shaft, and thus suppress the generation of abnormal noise from the transmission system.
    • 本发明的目的是抑制当车辆转弯时发生的传动系统产生异常噪声。 前轮输出轴与传动系统直接连接,后轮输出轴通过传动离合器连接到传动系统。 当前轮输出轴rpm Nf和后轮输出轴rpm Nr在转弯时彼此分离超过规定值(α2),然后释放加速踏板,并且发动机转速Ne和涡轮转速N in接近 其他超过规定值(β2),然后如果在前轮输出轴rpm Nf(γ2)中出现规定振动频率的振动,则离合器压力控制阀52的占空比Rd减小(delta2)。 接下来,当占空比Rd降低时,当确定前轮输出轴rpm Nf中的振动已被消除(ε2)时,恢复正常滑差控制,并且执行控制以使占空比Rd再次增加( zeta2)。 通过这样做,可以抑制前轮输出轴的振动,从而抑制来自传动系统的异常噪声的产生。