Electrohydraulic brake booster and method of controlling same for smooth
brake pedal feel
    2.
    发明授权
    Electrohydraulic brake booster and method of controlling same for smooth brake pedal feel 失效
    电动液压制动助力器及其控制方法,使制动踏板感觉平稳

    公开(公告)号:US6007160A

    公开(公告)日:1999-12-28

    申请号:US26973

    申请日:1998-02-20

    IPC分类号: B60T7/04 F16D31/02

    CPC分类号: B60T7/042

    摘要: A method of controlling the operation of an electrohydraulic brake booster to achieve a desired pedal feel. The method includes sensing brake pedal movement from a fully retracted rest position before a significant resistance to travel of the brake pedal is developed. The method further includes generating a command pulse that results in application of pressurized hydraulic fluid to the boost piston assembly sufficient to overcome preloaded spring forces and seal friction in the boost piston assembly that would otherwise tend to resist further brake pedal travel. The method further includes providing a control signal override when a brake pedal "bounce" condition is detected to avoid undesired vehicle braking. A brake pedal bounce condition may occur if the brake pedal is released suddenly so that the brake pedal returns to the fully retracted rest position rapidly enough to bounce off of a mechanical stop at that position and move in the brake apply direction.

    摘要翻译: 一种控制电动液压制动助力器的操作以实现期望的踏板感觉的方法。 该方法包括在制动踏板的显着阻力发展之前,从完全缩回的静止位置感测制动踏板的运动。 该方法还包括产生指令脉冲,其导致加压液压流体施加到升压活塞组件,足以克服预加载的弹簧力并密封增压活塞组件中的摩擦,否则其将倾向于抵抗进一步的制动踏板行程。 该方法还包括当检测到制动踏板“反弹”状况时提供控制信号超驰以避免不期望的车辆制动。 如果制动踏板被突然释放,制动踏板反弹状态可能会发生,使制动踏板迅速返回到完全缩回的停止位置,足以弹出该位置的机械止动件并在制动器施加方向上移动。

    Method for detecting brake circuit failure

    公开(公告)号:US09827961B2

    公开(公告)日:2017-11-28

    申请号:US11661539

    申请日:2005-08-26

    IPC分类号: B60T8/88 B60T13/74

    摘要: A method is provided for detecting a fault condition in a hydraulic brake system of a vehicle having a first hydraulic brake circuit and a second hydraulic brake circuit. A correlation ratio is determined between a measured pressure and the actual vehicle acceleration. A first wheel velocity differential is determined and a second wheel velocity differential is determined. A weighting value is selected in response to determining whether the correlation ratio is within the predetermined range and whether the first wheel velocity differential and the second wheel velocity differential are opposite signs. The selected weighting value is added to a fault counter. A determination is made whether the fault counter is equal to or greater than a predetermined threshold. A fault condition is detected in response to the fault counter greater than or equal to the first predetermined threshold.

    Electronically controlled hydraulic brake boost pressure control system
    4.
    发明授权
    Electronically controlled hydraulic brake boost pressure control system 失效
    电控液压制动助力压力控制系统

    公开(公告)号:US06216457B1

    公开(公告)日:2001-04-17

    申请号:US09191965

    申请日:1998-11-13

    IPC分类号: B60T1300

    摘要: A vehicle hydraulic system is disclosed comprising a hydraulic fluid reservoir; a pressure force supplying pressurized hydraulic fluid to a discharge header; a fluid conduit between the discharge header and the reservoir; a back pressure valve operative in the fluid conduit to maintain a desired pressure in the discharge header; and a vehicle braking system having a hydraulically operated boost piston assembly for supplementing a force exerted by a vehicle operator to operate brakes of the vehicle braking system. The system further includes a boost pressure control valve responsive to an input from the vehicle operator for selectively directing pressured hydraulic fluid from the discharge header to the boost piston assembly and venting hydraulic fluid from the boost piston assembly to the reservoir.

    摘要翻译: 公开了一种车辆液压系统,其包括液压油箱; 将加压液压流体供应到排出集管的压力; 在排放集管和储存器之间的流体导管; 操作在流体管道中的背压阀,以在排放集管中保持期望的压力; 以及车辆制动系统,其具有用于补充由车辆操作者施加的力来操作车辆制动系统的制动器的液压操作的增压活塞组件。 该系统还包括响应于来自车辆操作者的输入的增压压力控制阀,用于选择性地将加压液压流体从排出集管传递到升压活塞组件,并将液压流体从升压活塞组件排出到储存器。

    Hydraulic brake booster having piston travel limit feature
    5.
    发明授权
    Hydraulic brake booster having piston travel limit feature 失效
    具有活塞行程极限特性的液压制动助力器

    公开(公告)号:US5983637A

    公开(公告)日:1999-11-16

    申请号:US958579

    申请日:1997-10-28

    IPC分类号: B60T13/16 B60T13/18 B60T13/20

    CPC分类号: B60T13/162 B60T13/18

    摘要: A brake booster for a brake system of a vehicle, wherein the brake booster is in fluid communication with a source of pressurized fluid. The brake booster includes a housing having a bore formed therein and a conduit formed therein being in fluid communication with the bore and the source of pressurized fluid. The brake booster includes first and second pistons slidably disposed within the bore of the housing. The bore, the first piston, and the second piston define a fluid chamber in fluid communication with the conduit formed in the housing, wherein the volume of the chamber is defined by the position of the first piston relative to the second piston. The brake booster further includes a valve selectively preventing fluid flow in a direction from the chamber to the source of pressurized fluid via the conduit.

    摘要翻译: 一种用于车辆制动系统的制动助力器,其中所述制动助力器与加压流体源流体连通。 制动助力器包括具有形成在其中的孔的壳体和其中形成的导管与孔和加压流体源流体连通。 制动助力器包括可滑动地设置在壳体的孔内的第一和第二活塞。 孔,第一活塞和第二活塞限定与形成在壳体中的导管流体连通的流体室,其中室的体积由第一活塞相对于第二活塞的位置限定。 制动助力器还包括阀,其选择性地防止流体沿着经由管道的腔室到加压流体源的方向流动。

    Vehicle system having regenerative brake control
    6.
    发明授权
    Vehicle system having regenerative brake control 有权
    具有再生制动控制的车辆系统

    公开(公告)号:US08152245B2

    公开(公告)日:2012-04-10

    申请号:US11662482

    申请日:2005-09-09

    申请人: Mark D. Lubbers

    发明人: Mark D. Lubbers

    IPC分类号: B60T8/64

    摘要: A method is provided for controlling the braking of a vehicle that has a first set of friction brakes for applying a first apply brake force to a first set of wheels and a second set of friction brakes for applying a second brake apply force to a second set of wheels. A powertrain assembly is coupled to the second set of wheels. The powertrain assembly includes a regenerative braking unit capable of recapturing kinetic energy from the second set of wheels. The vehicle is braked in a first phase of control using regenerative braking to brake the second set of wheels to achieve up to a first value of braking. The vehicle is braked in a second phase of control using the regenerative braking to maintain braking of the second set of wheels at the first value of braking force while selectively applying the first friction brakes to the first set of wheels up to a second value of braking.

    摘要翻译: 提供了一种用于控制具有第一组摩擦制动器的车辆的制动的方法,用于向第一组车轮施加第一施加制动力,以及第二组摩擦制动器,用于向第二组施加第二制动施加力 的轮子。 动力总成组件联接到第二组轮子。 动力总成组件包括能够从第二组轮回收动能的再生制动单元。 车辆在第一阶段的制动中使用再生制动来制动第二组车轮以达到制动的第一值。 使用再生制动将车辆制动在第二阶段的控制中,以将第二组车轮的制动保持在制动力的第一值,同时选择性地将第一摩擦制动器施加到第一组车轮直到第二制动值 。

    Method and Device for Sensor Signal Noise Reduction
    7.
    发明申请
    Method and Device for Sensor Signal Noise Reduction 有权
    用于传感器信号降噪的方法和装置

    公开(公告)号:US20100179740A1

    公开(公告)日:2010-07-15

    申请号:US12516821

    申请日:2007-11-29

    申请人: Mark D. Lubbers

    发明人: Mark D. Lubbers

    IPC分类号: G06F19/00 B60T8/17

    摘要: An algorithm for limiting the output of a master cylinder pressure sensor in an electronic brake control system to a value that is a function of the master cylinder pressure and the travel of the brake pedal.

    摘要翻译: 一种用于将电子制动控制系统中的主缸压力传感器的输出限制为与主缸压力和制动踏板行程有关的值的算法。

    Vehicle System Having Regenerative Brake Control
    8.
    发明申请
    Vehicle System Having Regenerative Brake Control 有权
    具有再生制动控制的车辆系统

    公开(公告)号:US20080100129A1

    公开(公告)日:2008-05-01

    申请号:US11662482

    申请日:2005-09-09

    申请人: Mark D. Lubbers

    发明人: Mark D. Lubbers

    IPC分类号: B60L7/22 B60T13/58

    摘要: A method is provided for controlling the braking of a vehicle that has a first set of friction brakes for applying a first apply brake force to a first set of wheels and a second set of friction brakes for applying a second brake apply force to a second set of wheels. A powertrain assembly is coupled to the second set of wheels. The powertrain assembly includes a regenerative braking unit capable of recapturing kinetic energy from the second set of wheels. The vehicle is braked in a first phase of control using regenerative braking to brake the second set of wheels to achieve up to a first value of braking. The vehicle is braked in a second phase of control using the regenerative braking to maintain braking of the second set of wheels at the first value of braking force while selectively applying the first friction brakes to the first set of wheels up to a second value of braking.

    摘要翻译: 提供了一种用于控制具有第一组摩擦制动器的车辆的制动的方法,用于向第一组车轮施加第一施加制动力,以及第二组摩擦制动器,用于向第二组施加第二制动施加力 的轮子。 动力总成组件联接到第二组轮子。 动力总成组件包括能够从第二组轮回收动能的再生制动单元。 车辆在第一阶段的制动中使用再生制动来制动第二组车轮以达到制动的第一值。 使用再生制动将车辆制动在第二阶段的控制中,以将第二组车轮的制动保持在制动力的第一值,同时选择性地将第一摩擦制动器施加到第一组车轮直到第二制动值 。

    Hydraulic brake booster
    9.
    发明授权
    Hydraulic brake booster 失效
    液压制动助力器

    公开(公告)号:US6149248A

    公开(公告)日:2000-11-21

    申请号:US191177

    申请日:1998-11-13

    摘要: A vehicle hydraulic system is disclosed comprising a pressure source supplying pressurized hydraulic fluid to a discharge header, a vehicle braking system having a hydraulically operated boost piston assembly for supplementing a force exerted by a vehicle operator to operate brakes of the vehicle braking system; a boost pressure control valve for selectively directing pressurized hydraulic fluid from the discharge header to boost piston assembly and venting hydraulic fluid from the boost piston assembly; and a sensor for receiving an input from a vehicle operator and supplying an electrical signal to the boost pressure control valve to control the operation thereof.

    摘要翻译: 公开了一种车辆液压系统,其包括将压力源向排放集管供应加压液压流体,车辆制动系统具有液压操作的增压活塞组件,用于补充由车辆操作者施加的作用力来操纵车辆制动系统的制动器; 增压压力控制阀,用于选择性地引导来自排放集管的加压液压流体以增加活塞组件并从增压活塞组件排出液压流体; 以及传感器,用于接收来自车辆操作者的输入并将电信号提供给升压压力控制阀以控制其操作。

    Method For Detecting Brake Circuit Failure
    10.
    发明申请
    Method For Detecting Brake Circuit Failure 有权
    检测制动电路故障的方法

    公开(公告)号:US20080246335A1

    公开(公告)日:2008-10-09

    申请号:US11661539

    申请日:2005-08-26

    IPC分类号: B60T8/88

    摘要: A method is provided for detecting a fault condition in a hydraulic brake system of a vehicle having a first hydraulic brake circuit and a second hydraulic brake circuit. A correlation ratio is determined between a measured pressure and the actual vehicle acceleration. A first wheel velocity differential is determined and a second wheel velocity differential is determined. A weighting value is selected in response to determining whether the correlation ratio is within the predetermined range and whether the first wheel velocity differential and the second wheel velocity differential are opposite signs. The selected weighting value is added to a fault counter. A determination is made whether the fault counter is equal to or greater than a predetermined threshold. A fault condition is detected in response to the fault counter greater than or equal to the first predetermined threshold.

    摘要翻译: 提供一种用于检测具有第一液压制动回路和第二液压制动回路的车辆的液压制动系统中的故障状况的方法。 在测量的压力和实际车辆加速度之间确定相关比。 确定第一车轮速度差并确定第二车轮速度差。 响应于确定相关比是否在预定范围内以及第一车轮速度差和第二车轮速度差是否相反的符号来选择加权值。 所选加权值被添加到故障计数器。 确定故障计数器是否等于或大于预定阈值。 响应故障计数器检测到故障状况大于或等于第一预定阈值。