Braking system having vacuum booster whose boosting ratio is lowered at fixed transition point at which wheel cylinder pressure increase is initiated
    1.
    发明授权
    Braking system having vacuum booster whose boosting ratio is lowered at fixed transition point at which wheel cylinder pressure increase is initiated 失效
    具有真空助力器的制动系统,其在启动轮缸压力增加的固定过渡点处升压比降低

    公开(公告)号:US06739676B1

    公开(公告)日:2004-05-25

    申请号:US09233583

    申请日:1999-01-19

    IPC分类号: B60T844

    摘要: Vehicle braking system including a vacuum booster for transmitting a boosted brake operating force to a master cylinder such that the boosting ratio is reduced at a fixed transition point before the boosting limit point is reached, a brake having a wheel brake cylinder connected through a fluid passage to a master cylinder serving as a first hydraulic pressure source, for braking a wheel, and a pressure increasing device having a second hydraulic pressure source connected to the fluid passage, and wherein the pressure increasing device initiating a pressure increasing operation, when the brake operating force has increased to the transition point, to increase the wheel cylinder pressure to be higher than the master cylinder pressure, by using the second hydraulic pressure source.

    摘要翻译: 车辆制动系统包括用于将升压的制动器操作力传递到主缸的真空助力器,使得在升压极限点之前的固定转变点处升压比减小;制动器,其具有通过流体通道连接的车轮制动缸 到用于制动车轮的第一液压源的主缸,以及具有连接到流体通道的第二液压源的增压装置,并且其中,当制动器操作时,增压装置启动增压操作 力已经增加到过渡点,通过使用第二液压源将轮缸压力增加到高于主缸压力。

    Vacuum booster apparatus and a brake apparatus

    公开(公告)号:US06398316B1

    公开(公告)日:2002-06-04

    申请号:US09285052

    申请日:1999-04-02

    IPC分类号: B60T844

    摘要: A vacuum booster apparatus used for a brake apparatus positively decreases a degree of opening of a throttle valve when it is required while an unnecessary decrease in the degree of opening of the throttle valve is positively prevented. A first pressure chamber of a vacuum booster is connected to an intake pipe of the engine on a downstream side of a throttle valve. A second pressure chamber of the vacuum booster is selectively connectable to one of the first pressure chamber and atmosphere. The vacuum booster boosts an operating force applied to a brake operating member based on a pressure difference between the first pressure chamber and the second pressure chamber. A throttle-opening-degree control device controls a negative pressure in the first pressure chamber by controlling the degree of opening of the throttle valve. The throttle-opening-degree control device decreases the degree of opening of the throttle valve only for a limited time when the negative pressure in the first pressure chamber is smaller than a predetermined necessary negative pressure determined by an operating-force relating amount related to the operating force applied to the brake operating member.

    Vacuum booster apparatus and a brake apparatus

    公开(公告)号:US06666530B2

    公开(公告)日:2003-12-23

    申请号:US10046178

    申请日:2002-01-16

    IPC分类号: B60T844

    摘要: A vacuum booster apparatus used for a brake apparatus positively decreases a degree of opening of a throttle valve when it is required while an unnecessary decrease in the degree of opening of the throttle valve is positively prevented. A first pressure chamber of a vacuum booster is connected to an intake pipe of the engine on a downstream side of a throttle valve. A second pressure chamber of the vacuum booster is selectively connectable to one of the first pressure chamber and atmosphere. The vacuum booster boosts an operating force applied to a brake operating member based on a pressure difference between the first pressure chamber and the second pressure chamber. A throttle-opening-degree control device controls a negative pressure in the first pressure chamber by controlling the degree of opening of the throttle valve. The throttle-opening-degree control device decreases the degree of opening of the throttle valve only for a limited time when the negative pressure in the first pressure chamber is smaller than a predetermined necessary negative pressure determined by an operating-force relating amount related to the operating force applied to the brake operating member.

    Vacuum booster apparatus and a brake apparatus
    4.
    发明授权
    Vacuum booster apparatus and a brake apparatus 有权
    真空增压装置和制动装置

    公开(公告)号:US06412883B1

    公开(公告)日:2002-07-02

    申请号:US10046144

    申请日:2002-01-16

    IPC分类号: B60T844

    摘要: A vacuum booster apparatus used for a brake apparatus positively decreases a degree of opening of a throttle valve when it is required while an unnecessary decrease in the degree of opening of the throttle valve is positively prevented. A first pressure chamber of a vacuum booster is connected to an intake pipe of the engine on a downstream side of a throttle valve. A second pressure chamber of the vacuum booster is selectively connectable to one of the first pressure chamber and atmosphere. The vacuum booster boosts an operating force applied to a brake operating member based on a pressure difference between the first pressure chamber and the second pressure chamber. A throttle-opening-degree control device controls a negative pressure in the first pressure chamber by controlling the degree of opening of the throttle valve. The throttle-opening-degree control device decreases the degree of opening of the throttle valve only for a limited time when the negative pressure in the first pressure chamber is smaller than a predetermined necessary negative pressure determined by an operating-force relating amount related to the operating force applied to the brake operating member.

    摘要翻译: 用于制动装置的真空增压装置在需要时积极地降低节流阀的打开程度,同时可以有效地防止节流阀的开度不必要的降低。 真空助力器的第一压力室在节流阀的下游侧连接到发动机的进气管。 真空助力器的第二压力室可选择性地连接到第一压力室和大气中的一个。 真空助力器基于第一压力室和第二压力室之间的压力差来增加施加到制动操作构件的操作力。 节气门开度控制装置通过控制节流阀的开度来控制第一压力室中的负压。 节气门开度控制装置仅在第一压力室中的负压小于由与第一压力室相关的操作力相关量确定的预定必要负压时限制节气门的打开程度 施加到制动操作构件的操作力。

    Vacuum booster apparatus and a brake apparatus

    公开(公告)号:US06612660B2

    公开(公告)日:2003-09-02

    申请号:US10046145

    申请日:2002-01-16

    IPC分类号: B60T844

    摘要: A vacuum booster apparatus used for a brake apparatus positively decreases a degree of opening of a throttle valve when it is required while an unnecessary decrease in the degree of opening of the throttle valve is positively prevented. A first pressure chamber of a vacuum booster is connected to an intake pipe of the engine on a downstream side of a throttle valve. A second pressure chamber of the vacuum booster is selectively connectable to one of the first pressure chamber and atmosphere. The vacuum booster boosts an operating force applied to a brake operating member based on a pressure difference between the first pressure chamber and the second pressure chamber. A throttle-opening-degree control device controls a negative pressure in the first pressure chamber by controlling the degree of opening of the throttle valve. The throttle-opening-degree control device decreases the degree of opening of the throttle valve only for a limited time when the negative pressure in the first pressure chamber is smaller than a predetermined necessary negative pressure determined by an operating-force relating amount related to the operating force applied to the brake operating member.

    Method of diagnosing brake booster based on its input and output, and braking system including diagnosing device capable of practicing the method
    6.
    发明授权
    Method of diagnosing brake booster based on its input and output, and braking system including diagnosing device capable of practicing the method 有权
    基于其输入和输出诊断制动助力器的方法,以及包括能够执行该方法的诊断装置的制动系统

    公开(公告)号:US06276763B1

    公开(公告)日:2001-08-21

    申请号:US09248854

    申请日:1999-02-11

    IPC分类号: B60T832

    摘要: Method of diagnosing a booster of a braking system including a brake operating member operated with a brake operating force, a master cylinder for producing a hydraulic pressure on the basis of an input force received from the booster as a result of boosting of the brake operating force by said booster, and a wheel brake cylinder which is activated by the hydraulic pressure produced by the master cylinder, to brake a vehicle wheel, wherein the booster is determined to be abnormal if the detected input and output of the booster do not meet a predetermined nominal relationship therebetween. Also disclosed is a diagnosing device capable of practicing the method.

    摘要翻译: 诊断包括由制动器操作力操作的制动操作构件的制动系统的助力器的方法,用于根据从助力器接收的输入力产生液压的主缸,其是由于升高制动器操作力 通过所述助力器和由主缸产生的液压激活的车轮制动缸,以制动车轮,其中如果检测到的增压器的输入和输出不符合预定的,预定的增压器被确定为异常 名义上的关系。 还公开了能够实施该方法的诊断装置。

    VEHICLE DYNAMIC CONTROL APPARATUS AND VEHICLE DYNAMIC CONTROL SYSTEM USING THE SAME
    9.
    发明申请
    VEHICLE DYNAMIC CONTROL APPARATUS AND VEHICLE DYNAMIC CONTROL SYSTEM USING THE SAME 有权
    车辆动态控制装置及车辆动力控制系统

    公开(公告)号:US20120109460A1

    公开(公告)日:2012-05-03

    申请号:US13282674

    申请日:2011-10-27

    IPC分类号: G06F7/00

    摘要: A vehicle dynamic control apparatus is designed to control a plurality of controlled objects according to a request value of a first parameter from an application associated with motion of a vehicle in a same direction to fulfill the request value of the first parameter. An availability obtainer obtains an availability corresponding to a controllable range of a second parameter of each of the plurality of controlled objects, the second parameter being associated with motion of the vehicle in the same direction. A selector determines an order of the plurality of controlled objects to be controlled based on the availability of the second parameter of each of the plurality of controlled objects, and selects at least one of the plurality of controlled objects to be controlled in accordance with the determined order.

    摘要翻译: 车辆动态控制装置被设计成根据来自与车辆在相同方向的运动相关联的应用的第一参数的请求值来控制多个受控对象,以满足第一参数的请求值。 可用性获取器获得对应于多个受控对象中的每一个的第二参数的可控范围的可用性,第二参数与车辆在相同方向上的运动相关联。 选择器基于多个受控对象中的每一个的第二参数的可用性确定要控制的多个受控对象的顺序,并且根据所确定的选择来选择要被控制的多个受控对象中的至少一个 订购。