Brake system for automotive vehicle US 8366203 B2
公开号 US8366203 B2 发布类型 授权
专利申请号 12/897,971 公开日 2013年2月5日
申请日期 2010年10月5日 优先权日 2007年4月9日 公告号 US20110025120 发明者 John P. Joyce
Assignee Ford Global Technologies Ford Global Technologies, Llc 美国分类 303/20 303/115.5 303/113.1 303/11
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国际分类号 B60T13/16 合作分类 B60T2270/604 B60T1/10 B60T7/042 B60T13/161 B60T8/4081 隐藏部分内容 ? 显示另外 4 个 ? 参考文献 专利引用 (20) 非专利引用 (2) 外部链接 美国专利商标局 (USPTO) 美国专利商标局 (USPTO) 专利转让信息 欧洲专利数据库 (Espacenet) 隐藏部分内容 ? 显示另外 2 个 ? 摘要
A brake system for an automotive vehicle includes a controller for operating friction and powertrain braking subsystems so that hydraulic pressure to the friction brakes is minimized during powertrain braking, while at the same time emulating the driver-interface operating characteristics of a pure friction-braking system during all operating conditions.
汽车的制动系统包括一个制动操作装置和刹车动力转动系统以便在制动的时候液压压力到制动器是最小的，然而同时模拟在所有操作条件下程序接口控制一个纯摩擦制动系统的特征 BACKGROUND 背景
1. Field of the Invention 发明领域
The present invention relates to a vehicular system for applying both friction and powertrain braking, while maintaining operational characteristics typical of friction-only braking systems. 本发明涉及一种车载系统施加摩擦和动力制动，同时保持仅摩擦制动操作的典型特征的系统2. Disclosure Information 披露信息
Hybrid electric vehicles typically use regenerative braking to achieve enhanced fuel economy. When the vehicle's operator calls for braking, either by releasing the accelerator, or by stepping on the brake, the vehicle may be braked either regeneratively, or by friction brakes, or both. It would be desirable to provide a braking system having relatively invariant response characteristics, so that the vehicle's operator experiences braking performance as a consistent event, independent of the particular mix of friction and regenerative braking prevailing during any particular braking event.
混合动力电动车通常使用再生制动来提高燃油的经济性。当车辆的驾驶员需要刹车时，通过释放加速踏板或者踩下制动踏板，车辆也许停着或者再生地，或者通过摩擦制动器，或者两者。提供一种相对不变的响应特性的制动系统是可取的，以便车辆驾驶员感受到制动表现是始终如一的，独立于特定的混合摩擦和再生制动盛行在任何特定的制动事件。 SUMMARY 摘要
According to an aspect of the present invention, a brake system for an automotive vehicle includes a number of friction brake modules associated with a plurality of road wheels, and a master cylinder having an input device activated by the operator of a vehicle. At least one isolation valve selectively permits high pressure brake fluid from the master cylinder to actuate the friction brake modules. A compliance and brake application subsystem interposed between the master cylinder and the friction brake modules includes a signal chamber fluidically connected with the output of the master cylinder, with the signal chamber having a movable piston having a first side subject to hydraulic pressure from the master cylinder and from a hydraulic pump, and a second side subject to hydraulic pressure from both the hydraulic pump and a resilient element pressing upon the second side of the movable piston. The second side of the movable piston partially defines a working chamber.
根据本目前本发明的一方面，汽车的制动系统包括若干与几个车轮相关的制动模块和一个被车辆驾驶员控制输入设备的主缸。至少一个隔离阀有选择性地允许高压制动液使主缸来驱动摩擦制动模块。一个合规的制动应用系统被设置在主缸和包含于主缸液体输出相连的信号室发热摩擦制动模块，信号室有一个一侧从主缸和液压泵受到液压压力的可移动活塞，而另外一侧受到来自液压泵和一个弹性元件的液压压力。可动活塞的第二侧部分定义一个工作腔。 According to another aspect of the present invention, a controller determines the total amount of braking desired by the vehicle operator based upon at least the operator's activation of the master cylinder, with the controller applying the friction brakes with high pressure fluid from the hydraulic pump, and with the controller also selectively providing brake fluid to the signal chamber and the working chamber so that the operating characteristics of the master cylinder and input device emulate a master cylinder and input device used with an operator-applied friction braking system.
根据本发明的另一个方面，控制器所需的总制动量由车辆操作员至少根据操作者的操作的主缸确定的，控制器将来自液压泵的高压液体应用到摩擦制动上，并且控制器也可以有选择性的提供制动液到信号室和工作室以便主缸的操作特性和主缸的输入设备的模拟以及输入设
备通过一个操纵应用摩擦制动系统使用。
According to another aspect of the present invention, a brake system is operable in at least a first state in which an input device is in a braking request mode and neither the master cylinder nor the hydraulic pump apply positive pressure to the friction brake modules, and a second state in which the input device is in a braking request mode and the hydraulic pump applies positive pressure to the friction brake modules. 根据本发明的另一方面，一个制动系统至少在一个第一状态的输入设备是在一个制动请求模式下是可操作的,无论是主缸和液压油泵应用正压到摩擦制动模块,和第二个状态的输入设备是在一个制动请求模式和水力泵适用于正压力对摩擦制动模块。
It is an advantage of the present system that a vehicle operator will experience consistent brake pedal performance, or feel, whether a vehicle is being braked regeneratively, or with friction brakes, or both.
本系统的优势是车辆驾驶员体验到始终如一的制动踏板的性能或者感觉，无论车辆是重复踩刹车，摩擦制动或者两者兼而有之。
DESCRIPTION OF DRAWINGS（附图描述）
FIG. 1 is a schematic representation of a braking system according to an aspect of the present invention.
FIG. 2 is similar to FIG. 1, and is also schematic representation of a braking system according to an aspect of the present invention.
FIG. 3 is a third schematic representation of a braking system according to an aspect of the present invention.
DESCRIPTION OF INVENTION 发明说明书
As shown in FIG. 1, brake system 10 uses at least one operator-activated input device. As used in this context, the term “operator” means a human driver or motorist. In the illustrated embodiments, the input device is a brake pedal, 14. Those skilled in the art will appreciate in view of this disclosure that other types of operator-activated input devices could be used, such as an accelerator pedal, or other types of manual or motorist-programmable controls. Brake system 10 includes not only friction braking, but also a powertrain braking subsystem, 64, which may be configured as either a regenerative, or non-regenerative electric or fluidic, or other type of powertrain braking system known to those skilled in the art and suggested by this disclosure. 如图一所示，制动系统10至少由一个操作员控制的输入设备使用。在这种情况下，术语“操控者”是指人类实际或开车的人。在插图中看到，输入设备是制动踏板14.本领域技术员针对这一披露，其他形式的操纵输入设备可以用来激活如油门踏板或其他类型的手动或司机编程控制。制动系统10不仅包括摩擦制动，也是一种动力制动子系统，64，可配置为一个再生，或非再生电或液体或者动力制动系统，本领域技术人员所熟知的其他类型的信息披露的。 Brake pedal 14 actuates a dual hydraulic master cylinder, 18, feeding two hydraulic circuits. Master cylinder 18 has two sensors, 22 and 26. Sensor 22 is a pedal position sensor, and sensor 26 is a hydraulic pressure sensor. Either or both sensors, or yet other types of sensors may be employed to notify controller 62 that the motorist desires braking.
制动踏板14驱动双液压主缸18给两个液压回路压力。主缸18有两个传感器22和26.传感器22是油门踏板位置传感器，传感器26是液压压力传感器。一方或双方的传感器，或其他类型的传感器可以用来通知控制器62按照驾驶员的意愿而制动。
Fluid leaving master cylinder 18 moves toward antilock unit 38. During normal operation,
汽车制动系统英文翻译
