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1. 发明申请

US20180022332A1 Brake Apparatus 审中-公开
公开(公告)号：US20180022332A1
公开(公告)日：2018-01-25
申请号：US15549754
申请日：2016-02-09
申请人： Hitachi Automotive Systems, Ltd.
发明人： Hiroki SONODA , Toshiya OOSAWA , Asahi WATANABE
IPC分类号： B60T8/40 , B60T8/88 , B60T8/36 , B60T7/04
CPC分类号： B60T8/4081 , B60T7/042 , B60T8/363 , B60T8/3655 , B60T8/885 , B60T11/20 , B60T13/146 , B60T13/662 , B60T13/686 , B60T2220/04 , B60T2270/404 , B60T2270/82
摘要： An object of the present invention is to provide a brake apparatus capable of acquiring a sufficient braking force when an abnormality has occurred. The brake apparatus includes a stroke simulator. The stroke simulator is connected to a portion of an oil passage between a master cylinder and a valve. The oil passage connects the master cylinder and a wheel cylinder therebetween. The stroke simulator is configured to generate a brake operation reaction force due to an increase and a reduction in a volume of a positive pressure chamber formed inside the stroke simulator. Brake fluid contained in a first chamber of the master cylinder flows into the positive pressure chamber at the time of control by a by-wire control unit. A fluid amount that can be supplied from the first chamber is larger than a fluid amount that the positive pressure can absorb therein.

2. 发明申请

US20160221553A1 BRAKE CONTROL APPARATUS AND BRAKE CONTROL METHOD 有权
标题翻译：制动控制装置和制动控制方法
公开(公告)号：US20160221553A1
公开(公告)日：2016-08-04
申请号：US15021251
申请日：2014-09-11
申请人： HITACHI AUTOMOTIVE SYSTEMS, LTD.
发明人： Asahi WATANABE
IPC分类号： B60T8/40 , B60T13/14 , B60T13/68 , B60T7/04
CPC分类号： B60T8/4081 , B60T7/042 , B60T13/146 , B60T13/662 , B60T13/686
摘要： To provide a brake control apparatus that brings a brake operating member to a proper position during antilock control.At least during operation of an antilock controller 105, valves 23 and 24 are actuated to impart a stroke to a piston 52P with hydraulic pressure generated by the pump 7.
摘要翻译：提供一种在防抱死控制期间使制动操作构件到适当位置的制动控制装置。至少在防锁控制器105的操作期间，阀23和24被致动以通过由泵7产生的液压向活塞52P施加行程。

3. 发明申请

US20170028974A1 Brake Device 审中-公开
标题翻译：制动装置
公开(公告)号：US20170028974A1
公开(公告)日：2017-02-02
申请号：US15295046
申请日：2016-10-17
申请人： Hitachi Automotive Systems, Ltd.
发明人： Asahi WATANABE
IPC分类号： B60T8/92 , B60T8/40 , B60T13/68 , B60T13/14 , B60T13/18 , B60T13/66 , B60T17/22 , B60T8/36
CPC分类号： B60T8/92 , B60T8/3655 , B60T8/4045 , B60T8/4054 , B60T8/4081 , B60T8/90 , B60T13/14 , B60T13/146 , B60T13/168 , B60T13/18 , B60T13/662 , B60T13/686 , B60T17/18 , B60T17/22 , B60T17/221 , B60T17/222 , B60T2270/403
摘要： It is an object of the invention to provide a brake device capable of detecting a failure in each of components, by which booster control is performed, at an early stage even during vehicle running. The brake device is configured to discharge brake fluid into a communicating fluid path that connects a fluid path of a primary system and a fluid path of a secondary system, and to control a first communicating valve for restricting a flow of brake fluid from the communicating fluid path to the fluid path of the primary system and a second communicating valve for restricting a flow of brake fluid from the communicating fluid path to the fluid path of the secondary system in respective valve-closing directions, so as to check at least a state of the pump.
摘要翻译：本发明的目的是提供一种制动装置，其能够在车辆行驶期间的早期阶段检测执行增压控制的各部件的故障。制动装置构造成将制动流体排放到连接主系统的流体路径和二次系统的流体路径的连通流体路径中，并且控制用于限制制动流体从连通流体流动的第一连通阀通向主系统的流体路径的第二连通阀和用于限制制动流体从连通流体路径流向相应阀关闭方向上的二次系统的流体路径的第二连通阀，以便至少检查泵。

4. 发明申请

US20180370509A1 Brake Apparatus, Brake System, and Method for Controlling Brake Apparatus 审中-公开
公开(公告)号：US20180370509A1
公开(公告)日：2018-12-27
申请号：US16060333
申请日：2016-11-11
申请人： Hitachi Automotive Systems, Ltd.
发明人： Hideaki YAGASHIRA , Toshiya OOSAWA , Asahi WATANABE
IPC分类号： B60T13/16 , B60T17/22 , B60T13/68
摘要： Provided is a brake apparatus capable of securing a braking force on a vehicle even at the time of a fluid leak. The brake apparatus performs control so as to continue generation of a brake hydraulic pressure to be supplied to a wheel cylinder with use of a second hydraulic source if a fluid leak of brake fluid is determined based on a preset relationship between a hydraulic pressure of a first hydraulic source and a stroke of a brake pedal.

5. 发明申请

US20180297569A1 Brake Apparatus 审中-公开
公开(公告)号：US20180297569A1
公开(公告)日：2018-10-18
申请号：US16016122
申请日：2018-06-22
申请人： Hitachi Automotive Systems, Ltd.
发明人： Toshiya OOSAWA , Asahi WATANABE
IPC分类号： B60T8/94 , B60T8/48 , B60T13/68 , B60T13/66 , B60T8/40 , B60T7/04 , B60T13/14
摘要： A brake apparatus includes a master cylinder, a hydraulic source, a reservoir tank, a fluid pool, a fluid level detection unit, and an electronic control unit. The electronic control unit is configured to switch brake control according to the fluid level detected by the fluid level detection unit. The brake fluid is transmitted from the first chamber to the wheel cylinder with use of the master cylinder to increase a pressure in the wheel cylinder. The brake fluid in the second chamber is transmitted to the wheel cylinder with use of the hydraulic source to increase a pressure in the wheel cylinder.

6. 发明申请

US20170282876A1 Brake Apparatus 有权
公开(公告)号：US20170282876A1
公开(公告)日：2017-10-05
申请号：US15508324
申请日：2015-08-31
申请人： Hitachi Automotive Systems, Ltd.
发明人： Toshiya OOSAWA , Asahi WATANABE
IPC分类号： B60T8/40 , B60T13/66 , B60T7/04 , B60T13/14
CPC分类号： B60T8/409 , B60T7/042 , B60T8/4081 , B60T13/143 , B60T13/66
摘要： A brake apparatus activates a stroke simulator OUT valve in a valve-closing direction to increase a pressure in a wheel cylinder with use of brake fluid flowing out of the stroke simulator according to a state of an operation performed by a driver on a brake pedal. Further, when the hydraulic pressure in the wheel cylinder or a first oil passage is brought into a predetermined state, the brake apparatus activates the stroke simulator OUT valve in a valve-opening direction to cause the brake fluid in the stroke simulator to flow out to a low-pressure portion while restricting the brake fluid in the stroke simulator to a predetermined flow amount.

7. 发明申请

US20170015290A1 Brake Apparatus 审中-公开
标题翻译：制动器
公开(公告)号：US20170015290A1
公开(公告)日：2017-01-19
申请号：US15123744
申请日：2015-03-09
申请人： Hitachi Automotive Systems, Ltd.
发明人： Toshiya OOSAWA , Asahi WATANABE
IPC分类号： B60T8/94 , B60T8/40 , B60T13/68 , B60T7/04 , B60T13/14 , B60T13/66
CPC分类号： B60T8/94 , B60T7/042 , B60T8/4081 , B60T8/4827 , B60T13/146 , B60T13/662 , B60T13/686 , B60T2270/403 , B60T2270/82
摘要： An object of the present invention is to provide a brake apparatus capable of acquiring a stable brake performance. A brake apparatus includes a master cylinder configured to be activated according to a brake operation performed by a driver, a reservoir tank divided into at least a first chamber connected to a wheel cylinder via the master cylinder and a second chamber connected to a hydraulic source configured to increase a pressure of brake fluid and transmit the brake fluid to the wheel cylinder, a brake control unit configured to perform brake control of transmitting the brake fluid to the wheel cylinder, and a fluid level detection unit configured to detect a fluid level of the brake fluid in the reservoir tank. The brake control unit is provided so as to be able to perform first brake control of transmitting the brake fluid from the first chamber to the wheel cylinder with use of the master cylinder, thereby increasing a pressure in this wheel cylinder, and second brake control of transmitting the brake fluid in the second chamber to the wheel cylinder with use of the hydraulic source, thereby increasing a pressure in this wheel cylinder. The brake control unit switches brake control between the first brake control and the second brake control according to the fluid level detected by the fluid level detection unit.
摘要翻译：本发明的目的是提供一种能够获得稳定的制动性能的制动装置。制动装置包括：主缸，其被配置为根据由驾驶员执行的制动操作而被启动，储罐被分成至少第一室，其经由主缸连接到轮缸，第二室连接到液压源增加制动液的压力并将制动流体传递到轮缸;制动控制单元，被配置为执行制动控制以将制动流体传递到轮缸;以及液面检测单元，被配置为检测制动液的液面储罐中的制动液。制动控制单元设置成能够执行使用主缸从第一室向轮缸传递制动流体的第一制动控制，从而增加该轮缸中的压力，并且第二制动控制使用液压源将第二室中的制动流体传递到轮缸，从而增加该轮缸的压力。制动控制单元根据由液面检测单元检测到的液面切换第一制动控制和第二制动控制之间的制动控制。

8. 发明申请

US20150367828A1 BRAKE APPARATUS 有权
标题翻译：刹车装置
公开(公告)号：US20150367828A1
公开(公告)日：2015-12-24
申请号：US14767110
申请日：2014-02-10
申请人： HITACHI AUTOMOTIVE SYSTEMS, LTD.
发明人： Toshiya OOSAWA , Hiroki SONODA , Asahi WATANABE
IPC分类号： B60T17/22
CPC分类号： B60T17/221 , B60T7/042 , B60T8/4081 , B60T13/146
摘要： There is provided a brake apparatus configured to identify a fluid leak spot while generating a braking force. The brake apparatus is configured to drive pump 7 to supply a brake fluid to a first fluid passage (fluid passage 11P, discharge passage 13P) and a second fluid passage (fluid passage 11S, discharge passage 13S), switch communicating valves 23P and 23S alternately between open and closed positions more than once, and detect a brake-fluid leakage in the first or second fluid passage on the basis of magnitudes of detection values detected by hydraulic-pressure sensors 92P and 92S during the open-close switching.
摘要翻译：提供一种制动装置，其构造成在产生制动力的同时识别流体泄漏点。制动装置构造成驱动泵7，将制动流体交替地供给到第一流体通路（流体通路11P，排出通路13P）和第二流体通路（流体通路11S，排出通路13S），交替连通阀23P，23S 基于在开闭切换期间由液压传感器92P和92S检测到的检测值的大小，检测第一或第二流体通道中的制动液泄漏。

9. 发明申请

US20190184958A1 Brake Device and Method of Detecting Fluid Leakage in Brake Device 审中-公开
公开(公告)号：US20190184958A1
公开(公告)日：2019-06-20
申请号：US16311451
申请日：2017-06-16
申请人： Hitachi Automotive Systems, Ltd.
发明人： Asahi WATANABE , Toshiya OOSAWA
IPC分类号： B60T17/22 , B60T8/17 , B60T13/14 , B60T13/68
CPC分类号： B60T17/221 , B60T8/17 , B60T8/48 , B60T13/142 , B60T13/686 , B60T17/22 , B60T2270/402 , B60T2270/406
摘要： There are provided a brake device that enhances the detection accuracy of a system with fluid leakage, regardless of the degree of fluid leakage, and a fluid leakage detection method of the brake device. The brake device includes a hydraulic unit and a control unit. The control unit includes a hydraulic pressure controller configured to control operations of a primary system connection valve, a secondary system connection valve, and a hydraulic pressure source; a first fluid leakage detector configured to detect a fluid leakage of a brake fluid occurring in each system, based on a primary system hydraulic pressure and a secondary system hydraulic pressure, in a state that the hydraulic pressure source is driven by the hydraulic pressure controller and that the primary system connection valve and the secondary system connection valve are alternately opened and closed; and a second fluid leakage detector configured to detect a fluid leakage of the brake fluid occurring in each system, based on the primary system hydraulic pressure and the secondary system hydraulic pressure, in a state that the primary system connection valve and the secondary system connection valve are closed by the hydraulic pressure controller after execution of the fluid leakage detection by the first fluid leakage detector.

10. 发明申请

US20180194332A1 Brake Control Apparatus and Brake System 审中-公开
公开(公告)号：US20180194332A1
公开(公告)日：2018-07-12
申请号：US15741788
申请日：2016-05-19
申请人： Hitachi Automotive Systems, Ltd.
发明人： Asahi WATANABE
IPC分类号： B60T8/17 , B60T13/16 , B60T8/34 , B60T8/48 , B60T13/68
CPC分类号： B60T8/17 , B60T7/12 , B60T8/341 , B60T8/48 , B60T8/86 , B60T8/885 , B60T13/161 , B60T13/686 , B60T2201/02 , B60T2201/03 , B60T2270/10 , B60T2270/306 , B60T2270/402 , B60T2270/403 , B60T2270/404 , B60T2270/414 , B60T2270/608
摘要： Provided is a brake control apparatus and a brake system capable of improving reliability of a performance of holding a hydraulic pressure in a wheel cylinder. A brake control apparatus includes a first valve provided in a first oil passage connecting a hydraulic source configured to supply brake fluid to a wheel cylinder and the wheel cylinder to each other, a return flow oil passage connected to the first oil passage between the hydraulic source and the first valve and configured to return the brake fluid supplied from the hydraulic source to a low-pressure portion, a pressure adjustment valve provided in the return flow oil passage and configured to adjust a brake hydraulic pressure in the first oil passage, and a hydraulic holding portion configured to hold a hydraulic pressure in the wheel cylinder set by a brake hydraulic pressure supplied from the hydraulic source to the wheel cylinder by activating the pressure adjustment valve and the first valve in respective valve-closing directions.

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