WO2001032488A1 - Accelerateur a depression - Google Patents
Accelerateur a depression Download PDFInfo
- Publication number
- WO2001032488A1 WO2001032488A1 PCT/JP2000/007564 JP0007564W WO0132488A1 WO 2001032488 A1 WO2001032488 A1 WO 2001032488A1 JP 0007564 W JP0007564 W JP 0007564W WO 0132488 A1 WO0132488 A1 WO 0132488A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- valve seat
- power piston
- holding
- negative pressure
- power
- Prior art date
Links
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
- 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
- B60T13/573—Vacuum systems indirect, i.e. vacuum booster units characterised by reaction devices
- B60T13/575—Vacuum systems indirect, i.e. vacuum booster units characterised by reaction devices using resilient discs or pads
-
- 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
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
-
- 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
- B60T8/321—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 deceleration
- B60T8/3255—Systems in which the braking action is dependent on brake pedal data
- B60T8/3275—Systems with a braking assistant function, i.e. automatic full braking initiation in dependence of brake pedal velocity
Definitions
- the present invention relates to a negative pressure booster for a vehicle, and more particularly to a negative pressure booster for a vehicle capable of compensating for insufficient brake pedal depression force during emergency braking.
- this conventional negative pressure booster has a solenoid for switching to emergency braking characteristics and a valve seat member driven by the solenoid, separately from the annular valve seat for controlling the air inflow, and has a pedal stroke.
- a solenoid drive signal is output from an electronic control unit that processes signals from the sensor and master cylinder fluid pressure sensor.
- the solenoid is driven based on the signal, and the valve is opposed to a valve seat member that has an annular valve seat for controlling air inflow. It separates the seal member from the seal member and puts the valve mechanism in an output increasing action state, and requires a solenoid, various sensors, an electronic control device, and the like, which is considerably expensive.
- the present invention provides a negative pressure booster which can achieve the output increasing action state at the time of emergency braking with a simple and inexpensive mechanical configuration without requiring a solenoid, various sensors, an electronic control device, and the like.
- the purpose is to do.
- a housing having at least one pressure chamber formed therein, and installed inside the housing so as to be able to move forward and backward with respect to the housing, wherein the pressure chamber is a constant-pressure chamber and a variable-pressure chamber.
- a movable piston that is divided into a movable piston, a power piston coupled to the movable wall, an input member disposed inside the power piston so as to be able to move forward and backward with respect to the power piston, An output member for outputting the thrust of the power biston accompanying the movement of the wall to the outside of the device, an annular valve seat for air outflow control disposed on the power piston and facing rearward, and an air outflow control for the air outflow control
- a negative pressure booster comprising a valve mechanism having a movable portion facing an annular valve seat and a fixed portion hermetically fixed to the power biston;
- the valve seat consists of forward and retractable seat member relative to said power screw tons, forward amount for the power piston of said input member in the case of a predetermined value or less to hold said valve seat member to a predetermined forward position Holding means; movable means for moving the valve seat member to a rearward position by a predetermined amount when an advance amount of the input member with respect to the power piston is larger than
- the relative movement amount between the input member and the power biston is larger than a predetermined value, that is, during emergency braking in which the driver depresses the brake pedal in a hurry
- the locking of the valve seat member by the holding means is released.
- the movable member moves the valve seat member backward by a predetermined amount, and the valve seat member pushes the movable portion of the valve mechanism backward, so that the variable pressure chamber is rapidly and forcibly communicated with the atmosphere, and the normal braking is performed.
- a larger propulsion force is applied to the movable wall, the power piston, and thus the output member, so that a sufficiently large brake fluid pressure can be generated.
- the jumping characteristics (the ratio of output to input becomes infinite until the input member comes into contact with the reaction force member when the brake pedal is depressed and the braking action is performed. This is called jumping. ), A larger propulsive force is applied to the output member than during normal braking.
- a negative pressure booster having two types of input-output characteristics, that is, a normal brake characteristic and an emergency brake characteristic, can be realized with a simple configuration.
- the rear means the brake pedal side or the vehicle rear side with respect to the vacuum booster
- the front means the master cylinder side or the vehicle front side with respect to the vacuum booster.
- the holding means is provided on the inner peripheral side of the front end of the power piston, and includes a holding member having a front end engaged with the power piston and a rear end engaged with the valve seat member. According to this, since the valve seat member is engaged with the holding member that is engaged with the power piston, the valve seat member is reliably connected to the power piston. Engaged.
- a taper portion is provided on at least one of the input member and the holding means, and when the amount of advance of the input member with respect to the power biston is larger than a predetermined value, a cam action between the input member or the holding means and the tapered portion is provided. Then, the holding of the holding means is released. According to this, when the amount of advance of the input member with respect to the power piston is larger than the predetermined value, the holding action of the holding means can be reliably released by the cam operation of the tapered portion. A quick transition from the characteristics to the characteristics for emergency braking becomes possible.
- the air outflow control annular valve seat includes a first air outflow control annular valve seat integrated with the power piston, and a first air outflow control annular valve seat that is capable of moving forward and backward with respect to the power biston and is substantially concentric with the first air outflow control annular valve seat.
- the air outlet control annular valve seat is integrated with the power piston, and the first air outlet control annular valve seat and the second air outlet control annular valve seat are substantially concentric with the first air outlet control annular valve seat.
- the normal braking characteristics and emergency can be achieved simply by adding a second air outlet control annular valve seat to the power piston of the normal negative pressure type booster that has an air outlet control annular valve seat.
- a negative pressure booster with two types of input / output characteristics for brakes can be configured, and it can be used in common with normal negative pressure boosters, leading to lower costs.
- the front means the front direction of the vehicle
- the rear means the rear direction of the vehicle.
- FIG. 1 is a sectional view of a negative pressure type booster according to a first embodiment of the present invention.
- FIG. 2 is an enlarged partial view of a main part of FIG.
- FIG. 3 is a sectional view of a negative pressure booster according to a second embodiment of the present invention.
- FIG. 4 is a perspective view before the valve seat member 40 is assembled.
- FIG. 5 is a perspective view of the holding member 52 before assembling.
- FIG. 6 is a partial cross-sectional view of a vacuum booster according to a third embodiment of the present invention.
- FIG. 7 is a perspective view of the holding member 152 before assembling.
- FIG. 8 is a sectional view taken along line XX of FIG.
- FIG. 9 is a partial sectional view of a negative pressure type booster according to a fourth embodiment of the present invention.
- FIG. 10 is a diagram showing the relationship between the force (input) applied to the input rod 28 and the thrust (output) of the output member 55.
- FIG. 1 and 2 are cross-sectional views of a vehicle negative pressure booster according to a first embodiment of the present invention
- FIG. 2 is an enlarged view of a part of FIG.
- a vehicle negative pressure booster (brake booster) 10 is composed of a front shell 11, a rear shell 12 and a movable wall 20.
- a housing 14 is provided which is divided into a constant-pressure chamber 23 communicating therewith and a variable-pressure chamber 24 freely communicable with the atmosphere.
- the movable wall 20 in the housing 14 is composed of a metal plate 18 and a rubber diaphragm 19 and is installed so as to be movable in the front-rear direction with respect to the housing 14.
- the bead portion on the outer peripheral edge of the diaphragm 19 is hermetically sandwiched between the folded portion provided on the outer peripheral edge of the rear shell 12 and the front shell 11.
- the bead portion on the inner peripheral edge of the diaphragm 19 is airtightly sealed together with the plate 18 in a groove provided on the outer periphery of the front flange portion of the power piston 22. Is fixed.
- the constant pressure chamber 23 is connected to an engine intake manifold (not shown) serving as a negative pressure source, and is always maintained at a negative pressure during operation of the engine.
- the variable pressure chamber 24 is communicated with and interrupted from the constant pressure chamber 23 via the passage 60 and the valve mechanism 36, and is also communicated and interrupted with the atmosphere via the valve mechanism 36.
- One piston 22 has a first space 22a which is located forward (left side in FIGS. 1 and 2) and communicates with the constant-pressure chamber, and a rear (in FIG. 1). And a right side in FIG. 2) and a second space 22 b communicating with the atmosphere, and an intermediate portion 22 1 interposed between the first space 22 a and the second space 22 b. have.
- the middle part 2 2 1 has a third space 2 2 c communicating the first space 22 a and the second space 22 b at the center of the middle part 22 1, and a third space 22 c.
- a passage 60 is provided for communicating the first space 22a and the second space 22b.
- an input rod 28 and a plunger 37 constituting an input member 27 penetrate the first space 22 a, the second space 22 b, and the third space 22 c, It is installed so that it can move in the front-back direction with respect to the power biston 22. Further, the input rod 28 and the plunger 37 are integrally connected at a connecting portion 80, and the input rod 28 is connected to a brake pedal (not shown) at the rear.
- An output member 55 is fitted to the front end of the power piston 22, and a counter member 54 is disposed between the front end of the power piston 22 and the output member 55. Further, an abutment member 70 is provided between the counter member 54 and the front end of the plunger 37, and the abutment member 70 is provided with a power piston so that it can move in the front-rear direction. It is installed inside a locking member 50 provided integrally with 22.
- a key member 32 is inserted into a radial hole 33 formed in an intermediate portion 22 1 of the power piston 22 in order to regulate the amount of movement.
- the thickness of the key member 32 in the front-to-rear direction (the left-right direction in FIGS. 1 and 2) is smaller than the front-rear dimension of the radial hole 33, and the key member 32 is a power piston 22. Can be moved in the front-rear direction by the distance C shown in FIG.
- the key member 32 can contact the rear shell 12 at the rear sides of both ends protruding to the outer peripheral side of the power biston 22, and the rearward movement limit of the power piston 22 relative to the housing 14 is as follows. As shown in FIG. 2, at a position where the front wall of the radial hole 33 contacts the front surface of the key member 32 and the rear surfaces of both ends of the key member 32 contact the rear shell 12. is there. The central portion of the key member 32 is disposed between a pair of flange surfaces 34, 35 formed in the central portion of the plunger 37, and the movement limit of the plunger 37 to the rear of the power biston 22 is limited.
- the forward movement limit of the plunger 37 with respect to the piston 1 22 is such that the flange surface 35 contacts the rear surface of the key member 32 and the front surface of the key member 32 has a radial hole 3.
- the variable pressure chamber 24 is communicated with the constant-pressure chamber 23 in accordance with the forward and backward movement of the plunger 37 with respect to the power biston 22.
- variable pressure chamber 24 While the output reduction function is cut off from the atmosphere and the variable pressure chamber 24 is shut off from the constant pressure chamber 23 and the output holding action state and the variable pressure chamber 24 is cut off from the constant pressure chamber 23 and communicated with the atmosphere.
- a valve mechanism 36 for switching to the output increasing operation state is provided.
- the valve mechanism 36 includes an annular valve seat 37a for air inflow control integrally formed at a rear end of the plunger 37, and a third space 22c at a rear portion of the valve seat member 40.
- Annular valve for air outflow control integrally formed around the rear opening
- the movable part 41 and the retainer 42 which have valves 41a and 41b opposed to the seat 39, the air outlet control annular valve seat 39, and the air inflow control annular valve seat 37a, respectively.
- the main component is a tubular member 45 having a fixed portion 43 that is airtightly fixed to the power piston 22 and the movable portion 41 being urged forward by a spring 44.
- valve seat member 40 disposed in the third space 22 c of the intermediate portion 22 1 is movable in the front-rear direction with respect to the power piston 22.
- the valve seat member 40 includes a slit 4 Ob in which a contact portion 37 c protruding in the radial direction is inserted into the outer periphery of the plunger 37, and a valve seat member. It has 40 through holes 40 e extending in the front-rear direction. The key member 32 is inserted into the slit 40b.
- the contact portion 37c and the slit 4Ob face each other, and the contact portion 37c It protrudes out of the valve seat member 40 via the slit 40b.
- the outer peripheral surface of the contact portion 37 c is recessed into the inner peripheral surface 22 1 a of the intermediate portion 22 1.
- the plunger 37 is slidably supported by the inner peripheral portion of the intermediate portion 21, that is, the inner periphery of the power piston 22 via the contact portion 37 c.
- valve sputum member 40 is located between the outer peripheral portion of the plunger 37 and the inner peripheral portion of the intermediate portion 22 1 of the power piston 22, and an annular valve seat 39 for controlling air outflow is formed. At the rear end, it comes into contact with the inner peripheral surface of the intermediate portion 221 so as to be slidable forward and backward. That is, the power piston 22 includes the intermediate portion 221 as a holding portion that holds the valve seat member 40 slidably rearward.
- a valve seat portion On the outer periphery of the rear end that abuts the intermediate portion 222 of the valve seat member 40, a valve seat portion is provided.
- An annular seal member 46 for maintaining airtightness between the rear end of the member 40 and the inner peripheral surface of the intermediate portion 22 1 is mounted. Further, the valve seat member 40 is moved rearward by a spring 47 (biasing member) disposed between the valve seat member 40 and a flange portion provided on the inner peripheral surface of the intermediate portion 222. Being energized.
- the passage 60 formed in the intermediate portion 22 1 and the first space 22 a communicate the valve mechanism 36 and the constant pressure chamber 23, and the third space 22 c communicates with the valve mechanism 36 Communicate with the room.
- a movable means for propelling the valve seat member 40 backward is provided inside the front part of the power biston 22, that is, in the middle part 22 1.
- the movable means includes a spring 47 (biasing member) for biasing the valve seat member 40 rearward and a lock member 32.
- the holding means 48 is provided inside the front part of the power biston 22, that is, in the first space 22a.
- the holding means 48 includes a holding member 52 having an engaging portion 52b engaged with the engaged portion 40c of the valve seat member 40, and a ring for urging the holding member 52 in the direction of reducing the diameter.
- Elastic body 53 As shown in FIG. 5, the holding member 52 has a shape of a half-cut hollow truncated cone like a hollow truncated cone cut along a plane passing through the center axis thereof. It is assembled to Power Biston 22 with facing.
- the locking portion 5 2 c of the holding member 52 is a locking portion fixed to the front portion of the power piston 22. It is fitted in the locking groove 50a of the material 50. For this reason, the holding member 52 cannot move in the front-rear direction, but is allowed to move in the radial direction around the locking portion 52c.
- FIG. 3 shows a second embodiment of the present invention.
- a first air outflow control annular valve seat 38 integrally formed around the rear opening of the third space 22 c of the intermediate portion 22 1 of the power piston 22 is provided.
- a valve seat member 400 having a second air outflow control annular valve seat 390 facing the movable portion 41 is provided on the inner diameter side of the first air outflow control annular valve seat 38 with a power piston 2. It is arranged movably in the front-rear direction with respect to 2.
- the configuration other than the above is the same as that of the first embodiment shown in FIG.
- FIG. 6 shows a third embodiment of the present invention, in which a holding means 148 is different from the first and second embodiments.
- the holding means 148 comprises a holding member 152 having an engaging portion 152b which engages with the engaged portion 400c of the valve seat member 400;
- a ring-shaped elastic body 53 is provided to urge the member 15 2 in the direction of reducing the diameter.
- the locking portion 152c of the holding member 152 is provided on the locking member 150 fixed to the front portion of the power biston 22 and extends substantially perpendicular to the center axis of the power biston 22. since this c which are fitted in the engaging groove 1 5 0 a to stationary holding member 1 5 2 can not move in the longitudinal direction, it is moved in the radial direction around the locking portion 1 5 2 c acceptable Have been.
- the holding member 152 has a three-parted truncated hollow truncated cone shape obtained by cutting the hollow truncated cone along three planes passing through the central axis thereof. Then, these three divided hollow truncated cones are assembled to the power biston 22 with three opposing faces.
- a thin cylindrical regulating member 170 is disposed on the outer periphery of the locking portion 152 c of the holding member 152, and the locking portion 152 c is formed from the locking groove 150 a. Missing Prevents getting out. That is, even if an axial component is applied to the holding member 152 by the cam action due to the contact between the slope 37b of the plunger 37 and the tapered portion 152a of the holding member 152, The lifting of the stop portion 152c from the locking groove 150a is prevented. Therefore, there is no loss of the amount of advance of the plunger 37 with respect to the power piston 22 and the transition from the normal brake characteristic to the emergency brake characteristic is performed promptly.
- the taper portion 15 2 of the holding member 15 2 passes through the rotation center axis X in the locking groove 15 0 a of the locking portion 15 2 c.
- a an input member or plunger 3 7 of the tapered portion 3 7 b the contact surface center line X 3 of the passing Ru plane of the angle is set to 3 0 ° or less formed by the central axis X 2 of the power-bis ton 2 2 It is.
- the distance B between the tapered portion 15 2 a of the holding member 15 2 and the center axis of the power piston 22 is defined as the distance B between the rotation center of the locking portion 15 2 c and the center axis of the power piston 22.
- the distance A is approached, and the holding member 15 2 is prevented from rotating in the direction of engaging with the valve seat member 400 (clockwise in FIG. 6) due to the axial component force due to the cam action.
- the purpose is to make the transition from the braking characteristic to the emergency braking characteristic promptly.
- the above angle is not applied only to the third embodiment of the present invention, but is also applied to the first embodiment, the second embodiment, and a fourth embodiment described later.
- FIG. 9 shows a fourth embodiment of the present invention, in which the holding means 248 is different from the first to third embodiments.
- the holding means 248 includes a holding member 252 having an engaging portion 252b which engages with the engaged portion 404c of the valve seat member 404. And a ring-shaped elastic body 53 that urges the holding member 25 in the direction of reducing the diameter.
- the locking portion 25 2 c of the holding member 25 2 is connected to the main body of the holding member 25 2. It is connected through the entanglement portion 25 2 d and has a substantially cylindrical shape.
- the locking groove 250 a provided in the locking member 250 fixed to the front portion of the power piston 22 and extending substantially at right angles to the center axis of the power piston 22 is a holding member. It has a cylindrical inner hole into which the locking portion 252c of the 52 is inserted. Further, the locking groove 250a has a cutout 250b extending along the locking groove 250a.
- the locking portion 250c is inserted into the locking groove 250a from a direction substantially perpendicular to the center axis of the power biston 22.
- the locking portion 250c and the holding member body are The connecting part 25 2 d connecting the two passes through the notch 250 b. That is, the locking portion 250c and the locking groove 250a form a so-called articulated connection.
- the holding member 250 uses the center axis of the locking groove 250a as the rotation axis, that is, the rotation member uses the axis substantially perpendicular to the center axis of the power piston 22 as the rotation axis. 2 rotates smoothly.
- the engaging portions 252c do not fall out of the engaging grooves 250a, and a highly reliable emergency braking function can be realized.
- the holding member 255 has the same shape except for the holding member 152 and the locking portion 152C according to the third embodiment shown in FIG. That is, it has a three-part hollow truncated cone shape obtained by cutting the hollow truncated cone along three planes passing through the central axis. As in the third embodiment shown in FIG. Assemble to Power Biston 22 with 3 facing each other.
- the emergency braking characteristic of the vacuum booster of the present invention is achieved by changing the jumping characteristic and applying a larger propulsive force to the output member than during normal braking.
- the gap D between the contact member 70 and the counter member 54 may be increased.
- the gap D is enlarged. ⁇
- the distance between the contact surface 2 2 d of the piston 2 2 and the counter member 5 4 and the annular valve seat for air outflow control 39, and the contact surface 2 of the power piston 22 with the counter member 54 This is the same as increasing the distance between 2d and the annular valve seat 37a for controlling air inflow.
- the gap D is enlarged by moving the annular valve seat for air outflow control 39 and the annular valve seat for air inflow control 37 a backward, so that the contact member 70 is opposite to the counter member 54.
- the ratio of output to input becomes infinite.
- the output in the so-called jumping state is made larger than in the normal state.
- valve seat member 40 moves rearward, the air outlet control annular valve seat 39 of the valve seat member 40 comes into contact with the valve 41 a constituting the movable portion 41 of the valve mechanism 36, and the pressure is kept constant.
- the communication between chamber 23 and transformer chamber 24 is cut off.
- the plunger 37 is moving forward together with the input rod 28, and the valve seat member 40 is Since the movable portion 41 of the mechanism 36 is pushed back, the annular valve seat 37a for controlling the air inflow of the plunger 37 and the valve 41b constituting the movable portion 41 of the valve mechanism 36 are connected. It separates rapidly, and the transformer chamber 24 communicates with the atmosphere.
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00970154A EP1227020B1 (en) | 1999-10-29 | 2000-10-27 | Negative pressure type brake booster |
CA002389209A CA2389209C (en) | 1999-10-29 | 2000-10-27 | Negative pressure type booster |
DE60036399T DE60036399T2 (de) | 1999-10-29 | 2000-10-27 | Unterdruckbremskraftverstärker |
US10/111,705 US6755116B1 (en) | 1999-10-29 | 2000-10-27 | Negative pressure type booster |
JP2001534661A JP3671909B2 (ja) | 1999-10-29 | 2000-10-27 | 負圧式倍力装置 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP31021799 | 1999-10-29 | ||
JP11/310217 | 1999-10-29 | ||
JP2000-297693 | 2000-09-28 | ||
JP2000297693 | 2000-09-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001032488A1 true WO2001032488A1 (fr) | 2001-05-10 |
Family
ID=26566232
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2000/007564 WO2001032488A1 (fr) | 1999-10-29 | 2000-10-27 | Accelerateur a depression |
Country Status (9)
Country | Link |
---|---|
US (1) | US6755116B1 (ja) |
EP (1) | EP1227020B1 (ja) |
JP (1) | JP3671909B2 (ja) |
KR (1) | KR100596108B1 (ja) |
CN (1) | CN1182998C (ja) |
AT (1) | ATE372908T1 (ja) |
CA (1) | CA2389209C (ja) |
DE (1) | DE60036399T2 (ja) |
WO (1) | WO2001032488A1 (ja) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2817818A1 (fr) * | 2000-12-13 | 2002-06-14 | Bosch Braking Sys Corp | Amplificateur de freinage |
JP2003025986A (ja) * | 2001-07-11 | 2003-01-29 | Aisin Seiki Co Ltd | 負圧式倍力装置 |
JP2003040101A (ja) * | 2001-07-30 | 2003-02-13 | Aisin Seiki Co Ltd | 負圧式倍力装置 |
JP2003054400A (ja) * | 2001-08-09 | 2003-02-26 | Aisin Seiki Co Ltd | 負圧式倍力装置 |
JP2003063379A (ja) * | 2001-08-24 | 2003-03-05 | Aisin Seiki Co Ltd | 負圧式倍力装置 |
JP2003063380A (ja) * | 2001-08-29 | 2003-03-05 | Aisin Seiki Co Ltd | 負圧式倍力装置 |
JP2003095085A (ja) * | 2001-09-25 | 2003-04-03 | Bosch Automotive Systems Corp | ブレーキ倍力装置 |
EP1306279A1 (en) * | 2001-10-29 | 2003-05-02 | Bosch Automotive Systems Corporation | Brake booster |
EP1325852A2 (en) * | 2001-12-27 | 2003-07-09 | Bosch Automotive Systems Corporation | Negative pressure brake booster |
WO2004012975A1 (de) * | 2002-07-30 | 2004-02-12 | Lucas Automotive Gmbh | Bremskraftverstärker mit notbremsassistentfunktion |
JP2005538889A (ja) * | 2002-09-19 | 2005-12-22 | ボッシュ システマス デ フレナド ソシエダッド リミタダ | 空圧ブレーキブースタ |
US7014276B2 (en) | 2001-08-24 | 2006-03-21 | Aisin Seiki Kabushiki Kaisha | Vacuum booster |
US7080588B2 (en) | 2003-11-04 | 2006-07-25 | Advics Co., Ltd. | Negative pressure type booster |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2839485B1 (fr) * | 2002-05-07 | 2004-07-02 | Bosch Gmbh Robert | Servomoteur pneumatique comportant un element flottant porteur de sieges decales d'admission et de reeequilibrage |
FR2847544B1 (fr) * | 2002-11-22 | 2005-02-25 | Bosch Gmbh Robert | Servomoteur perfectionne et dispositif de commande de frein muni de ce servomoteur |
EP1616769B1 (en) * | 2003-04-18 | 2009-01-14 | Bosch Corporation | Negative pressure doubling device |
JP3956902B2 (ja) | 2003-06-03 | 2007-08-08 | 株式会社アドヴィックス | 負圧式倍力装置 |
FR2856363B1 (fr) * | 2003-06-23 | 2005-09-02 | Bosch Gmbh Robert | Servomoteur d'assistance pneumatique au freinage a course morte reduite et un systeme de freinage comportant un tel servomoteur. |
JP2005145158A (ja) * | 2003-11-12 | 2005-06-09 | Advics:Kk | 負圧式倍力装置 |
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KR101459448B1 (ko) * | 2013-03-19 | 2014-11-07 | 현대자동차 주식회사 | 차량의 제동 제어 방법 및 시스템 |
CN103287416A (zh) * | 2013-05-10 | 2013-09-11 | 陈光华 | 一种带紧急制动辅助功能的汽车制动器的真空助力方法 |
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- 2000-10-27 US US10/111,705 patent/US6755116B1/en not_active Expired - Lifetime
- 2000-10-27 DE DE60036399T patent/DE60036399T2/de not_active Expired - Lifetime
- 2000-10-27 CN CNB008177953A patent/CN1182998C/zh not_active Expired - Lifetime
- 2000-10-27 JP JP2001534661A patent/JP3671909B2/ja not_active Expired - Lifetime
- 2000-10-27 KR KR1020027005427A patent/KR100596108B1/ko active IP Right Grant
- 2000-10-27 EP EP00970154A patent/EP1227020B1/en not_active Expired - Lifetime
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Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2817818A1 (fr) * | 2000-12-13 | 2002-06-14 | Bosch Braking Sys Corp | Amplificateur de freinage |
JP2003025986A (ja) * | 2001-07-11 | 2003-01-29 | Aisin Seiki Co Ltd | 負圧式倍力装置 |
JP2003040101A (ja) * | 2001-07-30 | 2003-02-13 | Aisin Seiki Co Ltd | 負圧式倍力装置 |
JP4720040B2 (ja) * | 2001-07-30 | 2011-07-13 | 株式会社アドヴィックス | 負圧式倍力装置 |
JP2003054400A (ja) * | 2001-08-09 | 2003-02-26 | Aisin Seiki Co Ltd | 負圧式倍力装置 |
JP2003063379A (ja) * | 2001-08-24 | 2003-03-05 | Aisin Seiki Co Ltd | 負圧式倍力装置 |
US7255408B2 (en) | 2001-08-24 | 2007-08-14 | Aisin Seiki Kabushiki Kaisha | Vacuum booster |
DE10238748B4 (de) * | 2001-08-24 | 2008-12-04 | Aisin Seiki K.K., Kariya | Bremskraftverstärker |
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JP2003063380A (ja) * | 2001-08-29 | 2003-03-05 | Aisin Seiki Co Ltd | 負圧式倍力装置 |
JP2003095085A (ja) * | 2001-09-25 | 2003-04-03 | Bosch Automotive Systems Corp | ブレーキ倍力装置 |
EP1306279A1 (en) * | 2001-10-29 | 2003-05-02 | Bosch Automotive Systems Corporation | Brake booster |
EP1325852A3 (en) * | 2001-12-27 | 2004-01-02 | Bosch Automotive Systems Corporation | Negative pressure brake booster |
EP1325852A2 (en) * | 2001-12-27 | 2003-07-09 | Bosch Automotive Systems Corporation | Negative pressure brake booster |
WO2004012975A1 (de) * | 2002-07-30 | 2004-02-12 | Lucas Automotive Gmbh | Bremskraftverstärker mit notbremsassistentfunktion |
US7086320B2 (en) | 2002-07-30 | 2006-08-08 | Lucas Automotive Gmbh | Brake booster with emergency brake assist function |
CN1305718C (zh) * | 2002-09-19 | 2007-03-21 | 博施制动***公司 | 气动制动助力器 |
US7201456B2 (en) * | 2002-09-19 | 2007-04-10 | Robert Bosch Gmbh | Pneumatic brake booster |
JP2005538889A (ja) * | 2002-09-19 | 2005-12-22 | ボッシュ システマス デ フレナド ソシエダッド リミタダ | 空圧ブレーキブースタ |
US7080588B2 (en) | 2003-11-04 | 2006-07-25 | Advics Co., Ltd. | Negative pressure type booster |
Also Published As
Publication number | Publication date |
---|---|
CN1182998C (zh) | 2005-01-05 |
EP1227020A1 (en) | 2002-07-31 |
EP1227020B1 (en) | 2007-09-12 |
US6755116B1 (en) | 2004-06-29 |
KR20020053829A (ko) | 2002-07-05 |
KR100596108B1 (ko) | 2006-07-05 |
JP3671909B2 (ja) | 2005-07-13 |
CA2389209C (en) | 2006-01-24 |
ATE372908T1 (de) | 2007-09-15 |
CN1413154A (zh) | 2003-04-23 |
CA2389209A1 (en) | 2001-05-10 |
DE60036399D1 (de) | 2007-10-25 |
EP1227020A4 (en) | 2003-05-28 |
DE60036399T2 (de) | 2008-05-29 |
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