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1. 发明授权

US5139121A Braking system for a vehicle having a propelling electric motor and an electromagnetic brake 失效
标题翻译：具有推进电动机和电磁制动器的车辆制动系统
公开(公告)号：US5139121A
公开(公告)日：1992-08-18
申请号：US793625
申请日：1991-11-18
申请人： Shigenori Kumura , Jiro Kuramoto , Gonshiro Kawabata
发明人： Shigenori Kumura , Jiro Kuramoto , Gonshiro Kawabata
IPC分类号： B60L7/08 , B60L7/26 , B60L7/28 , B60T13/58
CPC分类号： B60L7/26 , B60L11/1877 , B60T13/585 , B60W10/08 , B60W10/192 , B60W30/18109 , B60L2200/24 , B60L2240/12 , B60L2250/16 , B60L2250/24 , B60L2270/145 , B60W2300/38 , B60W2540/10 , B60W2540/12 , B60W2710/081 , B60W2710/18 , Y02T10/7005 , Y02T10/705 , Y10T477/322 , Y10T477/35 , Y10T477/393 , Y10T477/82 , Y10T477/87
摘要： A braking system for a vehicle having a propelling electric motor and an electromagnetic brake, includes a friction brake; a manually operable brake control lever; an interlocking device for transmitting a displacement of the brake control lever to operate the friction brake; a detecting device for detecting the displacement of the brake control lever and outputting a displacement detection signal; and a control device connected to the electric motor, the electromagnetic brake and the detecting device for controlling the electric motor and the electromagnetic brake and receiving the displacement detection signal from the detecting device. The control device is a board computer operable to reduce rotating rate of the electric motor and actuate the electromagnetic brake to exert a braking force below a maximum braking force during a predetermined period following receipt of the displacement detection signal, and upon lapse of the predetermined period to stop the electric motor and actuate the electromagnetic brake to exert the maximum braking force. When the brake control lever is operated to stop the running vehicle, the running speed is gradually lowered over the predetermined time following an operation of the brake control lever. Consequently, shocks due to stopping of the vehicle are suppressed. The electric motor receives no power supply and the brake is set to a maximum braking state after lapse of the predetermined time. The vehicle is positively stopped by a combined effect of elimination of the propelling drive and the maximum braking force.
摘要翻译：一种具有推进电动机和电磁制动器的车辆的制动系统，包括摩擦制动器; 手动操作的制动控制杆; 用于传递制动控制杆的位移以操作摩擦制动器的联锁装置; 检测装置，用于检测制动控制杆的位移并输出位移检测信号; 以及与电动机连接的控制装置，电磁制动器和用于控制电动机和电磁制动器的检测装置，并且从检测装置接收位移检测信号。控制装置是可操作的板式计算机，其可以在接收到位移检测信号之后的预定时间段期间减小电动机的转速并致动电磁制动器以将制动力施加在最大制动力以下，并且在经过预定周期停止电动机并致动电磁制动器施加最大制动力。当制动控制杆操作以停止行驶车辆时，在制动控制杆的操作之后的预定时间内运行速度逐渐降低。因此，抑制了由于车辆的停止引起的冲击。电动机不接收电源，并且在经过预定时间之后制动器被设定为最大制动状态。通过消除推进驱动和最大制动力的综合作用，车辆被积极地停止。

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