Electro-hydraulic brake apply system displacement augmentation
    1.
    发明授权
    Electro-hydraulic brake apply system displacement augmentation 失效
    电动液压制动器应用系统位移增大

    公开(公告)号:US6082831A

    公开(公告)日:2000-07-04

    申请号:US64337

    申请日:1998-04-22

    摘要: A brake apply system includes a modulator that has a first bore carrying a power driven dual-effect piston. The piston has a base piston surface and an augmentation piston surface. A wheel brake is hydraulically connected to the modulator through an open fluid communication route that is provided between the wheel brake and the base piston surface. A selectively open fluid communication route is provided between the wheel brake and the augmentation piston surface with a check valve mechanism positioned in the selectively open fluid communication route. An augmentation chamber is defined adjacent the augmentation surface of the dual-effect piston. The modulator includes a second bore carrying a valve mechanism that provides an open flow path between the augmentation chamber and a reservoir when pressure at the wheel brake is relatively high and that significantly restricts the flow path when the wheel brake pressure is relatively low. Through this mechanism the augmentation surface is added to the base piston surface for a dual-effect pressure generation area that increases the initial pressurization rate of the brake apply system. Advantageously, the faster the apply rate of the braking system, the greater the augmentation pressure and displacement that is available.

    摘要翻译: 制动施加系统包括具有承载动力驱动的双重作用活塞的第一孔的调节器。 活塞具有基座活塞表面和增强活塞表面。 车轮制动器通过设置在车轮制动器和基座活塞表面之间的开放的流体连通路径与调制器液压连接。 在车轮制动器和增压活塞表面之间设有选择性开放的流体连通路径,其中止回阀机构位于选择性打开的流体通道中。 在双效活塞的增强表面附近限定增强室。 该调节器包括一个带有阀机构的第二孔,该阀机构在车轮制动器的压力相对较高时,在增压室和储存器之间提供开放的流动路径,并且当车轮制动压力相对较低时,可显着限制流路。 通过该机构,增加表面被添加到基座活塞表面,用于增加制动施加系统的初始加压速率的双重效应压力产生区域。 有利地,制动系统的施加速率越快,增加压力和可用位移就越大。

    Brake by wire system
    3.
    发明授权
    Brake by wire system 失效
    制动系统

    公开(公告)号:US5749633A

    公开(公告)日:1998-05-12

    申请号:US854459

    申请日:1997-05-12

    IPC分类号: B60T7/22 B60T8/32 B60T8/34

    摘要: A braking system including a wheel brake with a dual piston caliper assembly provides a brake by wire add-on system with dual level manual override capabilities. A pressure control block associated with the wheel brake directs fluid pressure generated by the master cylinder to the first and the second pistons of the caliper assembly for operation of the braking system in a manual apply mode. An electro-hydraulic modulator generates operating pressure in the brake by wire mode. The electro-hydraulic modulator communicates with the pressure control block so that fluid pressure generated by the electro-hydraulic modulator is transmitted to a single piston of the caliper assembly and is prevented from being communicated to the first piston of the caliper assembly by a solenoid valve assembly positioned in the pressure control block.

    摘要翻译: 包括具有双活塞卡钳组件的车轮制动器的制动系统通过具有双级手动超驰能力的线附加系统提供制动。 与车轮制动相关联的压力控制块将主缸产生的流体压力引导到卡钳组件的第一和第二活塞,以便以手动应用模式操作制动系统。 电液压调节器通过有线模式在制动器中产生工作压力。 电液压调节器与压力控制块连通,使得由电液压调节器产生的流体压力传递到制动钳组件的单个活塞,并且防止通过电磁阀与制动钳组件的第一活塞连通 组件位于压力控制块中。

    Brake by wire system with BTSI based vehicle operation control
    4.
    发明授权
    Brake by wire system with BTSI based vehicle operation control 有权
    制动器采用基于BTSI的车辆操纵控制

    公开(公告)号:US06709069B2

    公开(公告)日:2004-03-23

    申请号:US10002394

    申请日:2001-10-23

    IPC分类号: B60T1366

    摘要: A brake by wire system is integrated with a brake transmission solenoid interlock (BTSI) unit to prevent a vehicle transmission from being shifted out of a park mode into a drive mode until a brake system operational state is determined. The BTSI is activated by a supplemental control unit, which generates a transmission release signal generated by a controller in response to simultaneous presence of a brake intent signal from one or more brake pedal sensors and a determination of an operational state of the brake system. The supplemental control unit includes a switch responsive to the transmission release signal to close the BTSI activating circuit and permit release of the transmission. In a split brake system with two brake controllers, the supplemental control unit may include a switch controlled by a logic (OR, AND) circuit or a pair of switches in an equivalent logical circuit configuration.

    摘要翻译: 线制系统与制动传动电磁互锁(BTSI)单元集成在一起,以防止车辆变速器从停车模式转移到驱动模式,直到确定制动系统运行状态。 BTSI由补充控制单元激活,该辅助控制单元响应于来自一个或多个制动踏板传感器的制动意图信号的同时存在以及确定制动系统的操作状态而产生由控制器产生的变速器释放信号。 补充控制单元包括响应于发射释放信号的开关以关闭BTSI启动电路并允许释放变速器。 在具有两个制动控制器的分离制动系统中,补充控制单元可以包括由逻辑(OR,AND)电路或等效逻辑电路配置中的一对开关控制的开关。

    Brake by wire electrical system architecture with multiple power sources and circuit protection
    5.
    发明授权
    Brake by wire electrical system architecture with multiple power sources and circuit protection 有权
    制动电线系统结构采用多电源和电路保护

    公开(公告)号:US06607251B2

    公开(公告)日:2003-08-19

    申请号:US09959239

    申请日:2001-12-12

    IPC分类号: B60T1514

    摘要: An electrical system architecture for a vehicle brake by wire system provides three electrical power sources: an electric generator, an electric power storage device such as a battery, and a third source which may be either an electric generator or storage device. An electric circuit has a common node and (1) connects the first electric generator to the common node through a first diode, (2) connects the first electric power storage device to the common node through a second diode, (3) connects the electric power source to the common node through one of the first and second diodes, and (4) connects the common node to the electric power inputs of control unit through circuit breaker devices. A sub-circuit within the electric circuit interconnects the first and second diodes, the common node and the first and second circuit breaker devices and isolates them within a zone protected from short circuits to points outside the zone. Voltages across the diodes are checked when the first diode should be reverse biased and again when the second diode should be reverse biased to detect circuit faults such as short or open circuits.

    摘要翻译: 用于通过线系统的车辆制动器的电气系统架构提供三个电源:发电机,诸如电池的蓄电装置,以及可以是发电机或存储装置的第三电源。 电路具有公共节点,(1)通过第一二极管将第一发电机连接到公共节点,(2)通过第二二极管将第一蓄电装置连接到公共节点,(3)将电 电源通过第一和第二二极管之一连接到公共节点,以及(4)通过断路器装置将公共节点连接到控制单元的电力输入端。 电路内的子电路将第一和第二二极管,公共节点和第一和第二断路器装置互连,并将它们隔离在防止短路区域外的区域内。 当第一个二极管应该被反向偏置时,并且当第二个二极管应该被反向偏置以检测诸如短路或开路的电路故障时,检查二极管两端的电压。