JPH0424870U - - Google Patents
Info
- Publication number
- JPH0424870U JPH0424870U JP1990067084U JP6708490U JPH0424870U JP H0424870 U JPH0424870 U JP H0424870U JP 1990067084 U JP1990067084 U JP 1990067084U JP 6708490 U JP6708490 U JP 6708490U JP H0424870 U JPH0424870 U JP H0424870U
- Authority
- JP
- Japan
- Prior art keywords
- pressure chamber
- variable pressure
- negative pressure
- variable
- power piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005192 partition Methods 0.000 claims 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/48—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition connecting the brake actuator to an alternative or additional source of fluid pressure, e.g. traction control systems
- B60T8/4809—Traction control, stability control, using both the wheel brakes and other automatic braking systems
- B60T8/4827—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems
- B60T8/4845—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems using a booster or a master cylinder for traction control
- B60T8/4854—Traction control, stability control, using both the wheel brakes and other automatic braking systems in hydraulic brake systems using a booster or a master cylinder for traction control pneumatic boosters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
- B60T13/46—Vacuum systems
- B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
- B60T13/57—Vacuum systems indirect, i.e. vacuum booster units characterised by constructional features of control valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/72—Electrical control in fluid-pressure brake systems in vacuum systems or vacuum booster units
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Braking Systems And Boosters (AREA)
Description
図は本考案による負圧式倍力装置の一実施例を
示す縦断側面図である。 符号の説明、10……ハウジング、13……隔
壁、20……パワーピストン、30……バルブ機
構、40……入力ロツド、70……出力ロツド、
R1……負圧定圧室、R2……変圧室、R2a…
…第1変圧室、R2b……第2変圧室、V1……
常開弁、V2……常閉弁。
示す縦断側面図である。 符号の説明、10……ハウジング、13……隔
壁、20……パワーピストン、30……バルブ機
構、40……入力ロツド、70……出力ロツド、
R1……負圧定圧室、R2……変圧室、R2a…
…第1変圧室、R2b……第2変圧室、V1……
常開弁、V2……常閉弁。
Claims (1)
- ハウジング内がパワーピストンにより少なくと
も1組の負圧定圧室と変圧室に区画され、また前
記変圧室が隔壁によつて前記負圧定圧室に隣接す
る第1変圧室とこの第1変圧室に外部信号に応じ
て開閉作動する常開弁を介して接続される第2変
圧室に区画され、前記パワーピストン内に組込ま
れて入力ロツドに連動するバルブ機構の作動によ
り前記第2変圧室が前記負圧定圧室と大気との連
通を制御されて前記変圧室と負圧定圧室間の差圧
が制御され、前記入力ロツドに加わる操作力が前
記パワーピストンにより助勢されて出力ロツドに
伝わるようにした負圧式倍力装置において、前記
第1変圧室と大気間を外部信号に応じて開閉作動
する常閉弁を介して接続したことを特徴とする負
圧式倍力装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990067084U JPH0424870U (ja) | 1990-06-25 | 1990-06-25 | |
US07/714,617 US5193429A (en) | 1990-06-25 | 1991-06-13 | Vacuum type brake booster |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1990067084U JPH0424870U (ja) | 1990-06-25 | 1990-06-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0424870U true JPH0424870U (ja) | 1992-02-27 |
Family
ID=13334661
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1990067084U Pending JPH0424870U (ja) | 1990-06-25 | 1990-06-25 |
Country Status (2)
Country | Link |
---|---|
US (1) | US5193429A (ja) |
JP (1) | JPH0424870U (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4431882C1 (de) * | 1994-09-07 | 1995-11-02 | Lucas Ind Plc | Elektronisch regelbarer Bremskraftverstärker mit einer Leitungsdurchführung |
DE9417819U1 (de) * | 1994-11-07 | 1996-03-07 | Lucas Ind Plc | Ventilbaugruppe |
FR2736605B1 (fr) * | 1995-07-10 | 1998-01-30 | Alliedsignal Europ Services | Dispositif de freinage assiste a temps de reponse ameliore |
FR2762568B1 (fr) * | 1997-04-28 | 1999-06-04 | Bosch Syst Freinage | Servomoteur pneumatique a chambre de pilotage |
KR100921279B1 (ko) * | 2008-07-31 | 2009-10-09 | 현대자동차주식회사 | 브레이크 부스터 |
CN103419766B (zh) * | 2013-08-07 | 2015-06-24 | 京西重工(上海)有限公司 | 真空助力器反应杆保持器及反应杆保持方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3364818A (en) * | 1966-08-29 | 1968-01-23 | Bendix Corp | Hand and/or foot operated power brake means |
JPH0662083B2 (ja) * | 1985-03-05 | 1994-08-17 | アイシン精機株式会社 | 負圧式倍力装置 |
US4800799A (en) * | 1985-03-05 | 1989-01-31 | Aisin Seiki Kabushiki Kaisha | Vacuum type brake booster |
FR2598992B1 (fr) * | 1986-05-26 | 1992-04-03 | Jidosha Kiki Co | Servofrein pour vehicule |
-
1990
- 1990-06-25 JP JP1990067084U patent/JPH0424870U/ja active Pending
-
1991
- 1991-06-13 US US07/714,617 patent/US5193429A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US5193429A (en) | 1993-03-16 |