KR20100113725A - Regenerative braking actuator apparatus - Google Patents

Regenerative braking actuator apparatus Download PDF

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Publication number
KR20100113725A
KR20100113725A KR1020090032174A KR20090032174A KR20100113725A KR 20100113725 A KR20100113725 A KR 20100113725A KR 1020090032174 A KR1020090032174 A KR 1020090032174A KR 20090032174 A KR20090032174 A KR 20090032174A KR 20100113725 A KR20100113725 A KR 20100113725A
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KR
South Korea
Prior art keywords
pedal
stopper
housing
rod
booster
Prior art date
Application number
KR1020090032174A
Other languages
Korean (ko)
Inventor
김종성
Original Assignee
현대모비스 주식회사
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 현대모비스 주식회사 filed Critical 현대모비스 주식회사
Priority to KR1020090032174A priority Critical patent/KR20100113725A/en
Publication of KR20100113725A publication Critical patent/KR20100113725A/en

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    • 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
    • B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
    • B60T13/686—Electrical control in fluid-pressure brake systems by electrically-controlled valves in hydraulic systems or parts thereof
    • 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
    • B60T13/74—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 electrical assistance or drive
    • B60T13/745—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 electrical assistance or drive acting on a hydraulic system, e.g. a master cylinder
    • 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
    • B60T7/02—Brake-action initiating means for personal initiation
    • B60T7/04—Brake-action initiating means for personal initiation foot actuated
    • B60T7/06—Disposition of pedal
    • 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
    • B60T8/36—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 including a pilot valve responding to an electromagnetic force
    • B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
    • B60T8/363—Electromagnetic valves specially adapted for anti-lock brake and traction control systems in hydraulic systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/91—Electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/92—Hybrid vehicles

Abstract

PURPOSE: A regenerative braking actuator apparatus is provided to minimize the change of design and simplify the entire structure of the design using a pedal simulator between a booster and a pedal in order to block vibrations toward the pedal. CONSTITUTION: A regenerative braking actuator apparatus includes a pedal simulator(10). The pedal simulator includes a pedal rod(14), a damper unit(15), and an assist unit. The pedal rod applies an inputted load to a booster when a stroke is performed to the pedal. The damper unit is compressed when the pedal rod is forwardly moved. The assist unit includes a stopper(12) for releasing a combination between the pedal rod and a housing.

Description

Regenerative braking actuator apparatus

The present invention relates to a regenerative braking actuator device, and more particularly, to a regenerative braking actuator device capable of minimizing a change in the feeling of effort during pedal stroke.

In general, a hybrid vehicle, a fuel cell vehicle, or an electric vehicle is a vehicle capable of regenerative braking, and implements regenerative braking to increase fuel efficiency.

Unlike the hydraulic braking, the electric vehicle needs to operate in conjunction with the regenerative braking device and requires variable control of the braking force during braking to maximize the regenerative braking efficiency.

In such a regenerative braking, it is very important that the braking force and the pedal force can be separated as much as possible so that the braking force is reversely transmitted to the pedal in the booster, so as not to lower the pedal feel felt by the driver.

However, blocking the braking force transmitted from the regenerative braking vehicle to the brake pedal inevitably uses additional components and devices other than the existing braking system.

For example, in order to prevent deterioration of the pedal feeling, a device for separating the braking force and the pedal force and a device for implementing mechanical fail-safe should be separately provided. Of course has the disadvantage of raising the price.

Accordingly, the present invention has been invented in view of the above-described problems, and the booster having a large increase in the power ratio receives the operation force of the pedal through the pedal simulator, thereby minimizing the change in the pedal feeling caused by the change in the pedal effort and boosting the regenerative braking. It is an object of the present invention to provide a regenerative braking actuator device that can more effectively block the vibration transmitted to the pedal in the.

In addition, since the pedal simulator installed between the pedal and the booster more effectively blocks the vibration transmitted to the pedal during regenerative braking, an object of the present invention is to provide a regenerative braking actuator device that is not only simplified in overall configuration and minimized design change but also inexpensive. have.

The present invention for achieving the above object, the regenerative braking actuator device comprises a pedal simulator (10) in the path that the input of the pedal (1) is transmitted to the booster (2),

The pedal simulator 10 includes a pedal rod 14 for applying an input load to the booster 2 in a forward movement in association with the progression of the stroke of the pedal 1;

A damper unit 15 that is compressed when the pedal rod 14 is advanced to implement a pedal feeling such as hydraulic pressure;

The pedal rod 14 is defined to limit the forward movement stroke of the pedal rod 14 to the boost limit point of the booster 2 and to move forward with the pedal rod 14 at a step beyond the boost limit point. An assist unit having a stopper 12 which is disengaged from the inserted housing 11;

Characterized in that configured to include.

The booster 2 as described above narrows the contact area between the plunger 5 and the reaction disk 6 constituting the poppet valve 4 operated through the operation rod 3, and reduces the contact area between the reaction disk 6 and the master. The contact area of the push rod 7 which transmits the load toward the cylinder has a wider structure.

The damper unit 15 as described above includes a main spring 16 having both ends elastically supported while surrounding the pedal rod 14 inserted to move forward and backward in the housing 11, and an inner space of the housing 11. And a pair of first and second fixed ends 17 and 18 which support the main spring 16 at both ends thereof, and a sub spring 19 which is spaced apart from the main spring 16 and is supported by a shot. .

The stopper 12 as described above is inserted into the housing 11 inserted so that the pedal rod 14 moves forward and backward, and an extension coupling end through which the opening hole 13b through which the pedal rod 14 penetrates is drilled. And a hook 13c spaced apart from the extension coupling end 13 and fitted into the locking groove 11c drilled in the housing 11, and tensioned when the stopper 12 is moved forward. The return spring 23 is positioned at the extension end 11b forming one end wall portion of the housing 11 and the formation portion of the hook 13c.

The stopper 12 is restrained or released with respect to the housing 11 through an ECU controlled solenoid 20, and is fixed to the solenoid 20 between the solenoid 20 and the stopper 12 to pressurize the spring 22. Support plate 21 for pushing the stopper 12 toward the load through the) is interposed, characterized in that the roller is provided between the stopper 12 and the support plate 21.

According to the present invention, using a booster having a large power ratio, a pedal simulator for blocking between the booster and the pedal is installed, to prevent the driver's feeling deteriorated by minimizing the change of the pedal feeling and blocking the transmission of vibration to the pedal due to regenerative braking It can work.

In addition, the present invention uses the pedal simulator installed between the booster and the pedal when the vibration is transmitted to the pedal during regenerative braking, it is possible to simplify the overall configuration and minimize the design change as well as to implement at a low cost.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Since the exemplary embodiments of the present invention may be embodied in various different forms, one of ordinary skill in the art to which the present invention pertains may be described herein. It is not limited to the Example to make.

Figure 1 shows the configuration of the regenerative braking actuator assembly according to the present invention, the regenerative braking actuator device of the present invention is a pedal (1) for braking, the operation force of the pedal (1) at a large power ratio Booster (2) to increase and operate the master cylinder, and transmits the load of the pedal (1) to the booster (2) while minimizing the change in the feeling of pedal, and during regenerative braking from the booster (2) to the pedal (1) It consists of a pedal simulator 10 to block the vibration.

Such a booster 2 is generally provided with a poppet valve 4 having a plunger 5 which opens and closes atmospheric pressure and a vacuum passage and is operated through an operation rod 3, with a reaction disc 6 interposed therebetween. It comprises a push rod (7) for holding and transferring the load to the master cylinder.

However, the booster 2 according to the present embodiment forms a larger power ratio than the general booster, and for this purpose, the contact area between the plunger 5 and the reaction disk 6 is narrowed, while the reaction disk ( 6) has a structure in which the contact area of the push rod 7 is expanded.

The boosting ratio of the booster 2 may be implemented in various ways. For example, the infinite boosting ratio is achieved when the contact area of the plunger 5 and the reaction disk 6 is eliminated. It is implemented by changing the contact structure between 5) and the reaction disk 6 in various ways.

The pedal simulator 10 according to the present embodiment includes a housing 11 having a pedal rod 14 interlocked with a pedal 1, and provides hydraulic hysteresis following and vibration blocking to the pedal 1. In addition to the damper unit 15 providing, there is provided an ECU-controlled assist unit for implementing a stable return and fail-safe upon release of the pedal 1.

The housing 11 as described above forms a chamber 11a which is an empty space, and a wall portion that blocks one side of the chamber 11a to support one portion of the pedal rod 14 has a length beyond the chamber 11a. An extended end 11b having an extended shape has a shape in which a locking groove 11c is formed in a wall portion that blocks the lower surface of the chamber 11a, and an inclined surface that widens one inlet portion in the locking groove 11c. 11d) is formed.

The locking groove 11c couples the stopper 12 that forms an assist unit for stable return upon release of the pedal 1.

In addition, the damper unit 15 as described above includes a main spring 16 having both ends supported by the foot while surrounding the pedal rod 14, and a chamber 11a of the housing 11 such that the main spring 16 is supported by the support. And a pair of first and second fixed ends 17 and 18 through which the pedal rod 14 penetrates at both ends of the c), and a sub spring 19 which is spaced apart from the main spring 16 and is elastically supported.

Here, the first fixed end 17 is located in the inner space of the chamber 11a of the housing 11, and the second fixed end 18 forms an assist unit and forms the chamber 11a of the housing 11. The sub spring 19 is elastically supported between the first fixed end 17 and the stopper 12.

The elastic force of the main spring 16 and the sub-spring 19 as described above is formed differently, the main spring 16 has a large elastic modulus than the sub-spring 19 in general.

In addition, the assist unit according to the present exemplary embodiment includes a stopper 12 coupled with the housing 11 and a pedal rod 14 so as to transmit the operating force of the pedal 1 to the booster even at a step beyond the boosting limit point of the booster. And interlocking means for releasing the restraint state of the stopper 12 to move.

In addition, the assist unit is further provided with a return spring 23 for the return stability of the stopper 12, the return spring 23 is tensioned during the movement of the stopper 12 and then the stopper 12 during compression To pull, one end is fixed to the extension end 11b of the housing 11 and the other end is fixed to the stopper 12.

The stopper 12 as described above forms an extension coupling end 13 which is located inside the chamber 11a of the housing 11 and forms a chamber 13a which is an empty space, and on the wall surface of the extension coupling end 13 The opening hole 13b through which the pedal rod 14 penetrates is drilled.

The extension coupling end 13 has a size that can be moved in the width direction in the chamber (11a) of the housing 11, so that the pedal rod 14 does not interfere with the movement of the extension coupling end (13). The opening hole 13b is drilled in a rectangular shape.

In this case, the extension coupling end 13 has a length at which the stroke of the pedal rod 14 can proceed to the boosting limit point of the booster 2, and the stopper 12 with respect to the housing 11 after the boosting limit point. The stopper 12 moves together with the pedal rod 14 to release the restraint, thereby actuating the booster 2.

In addition, the stopper 12 is further provided with a hook (13c) to be fitted to the engaging groove (11c) of the housing 11 from the outside of the housing 11, the hook (13c) to the extension coupling end (13) It is provided at the bottom portion formed integrally at intervals.

The interlocking means includes a solenoid 20 that is ECU controlled, a support plate 21 that is moved together with the rod of the solenoid 20, and a pressure spring 22 that applies a force to push the support plate 21. do.

The pressure springs 22 are paired in two positions respectively located on both sides of the support plate 21, and the support plate 21 provides a force for pushing the stopper 12 toward the housing 11.

In addition, a roller such as a bearing is provided toward the support plate 21 toward the support plate 21 or the stopper 12 toward the support plate 21, and the roller includes the stopper 12 together with the pedal rod 14 toward the booster 2. Reduces friction when pushed back or on return.

The ECU controlling the solenoid 20 is input with various signal values necessary for controlling the solenoid 20 together with the depression stroke signal of the pedal 1 for determining the failure of the booster 2.

As described above, the actuator device according to the present embodiment has a booster 2 having a large increase in power ratio by adjusting the contact area of the plunger 5, the reaction disk 6, and the push rod 7, and the damping through multiple springs ( It is configured using a pedal simulator (10) having a damping function and transmitting the answer input of the pedal (1) to the booster (2).

As a result, when the pedal 1 is stepped on, the pedal simulator 10 acts like a pedal 1 that follows hydraulic hysteresis characteristics, and simultaneously transmits the pedal force of the pedal 1 to the booster 2 to boost the pedal. (2) operates the master cylinder at high power ratio.

The part (a) shown in FIG. 2 shows the effect through the high power ratio realized in the booster 2 as described above, which means that the input-to-output performance, i.e., the operation of the pedal 1, has a very small variation in stroke. This means that the starting force section is very short, and the performance in the subsequent section has little load change.

An actuator device according to the present embodiment for implementing the above-described performance will be described in detail with reference to FIG. 2.

In the (a) state shown in FIG. 2, the pedal 1 is stepped on and the pedal depression amount is transmitted to the booster 2 via the pedal simulator 10, whereby the master cylinder generates a high back force generated by the booster 2. Represents a time point that operates in rain.

That is, when the depression amount of the pedal 1 is transmitted to the pedal simulator 10, the pedal rod 14 interlocked with the pedal 1 is advanced, and the operating rod 3 is moved forward by the pedal rod 14. It is moved and the booster 2 is activated.

 The forward movement of the pedal rod 14 as described above allows the booster 2 to realize an input-to-output performance with a very small variation in the stroke of the pedal 1, and to interlock the damper unit 15 to the driver. It starts to provide a feeling of pedaling like hydraulic pressure.

That is, the damper unit 15 forms a reaction force to the movement of the pedal rod 14 to give the driver a feeling of pedaling, such as hydraulic pressure, which is primarily compressed by the main spring 16 as the pedal rod 14 proceeds. After the sub spring 19 is also compressed to deliver a reaction force toward the pedal (1).

As described above, the damper unit 15 is composed of the main spring 16 and the sub spring 19 so that the reaction force transmitted to the pedal 1 gradually increases, so that the driver may apply hydraulic pressure according to the stroke progress of the pedal 1. You can feel the pedal feel like the hysteresis characteristics of the track.

At this time, the ECU does not drive the solenoid 20 so that the stopper 12 is constrained to the housing 11 via the hook 13c, so that the stopper 12 is not affected by the movement of the pedal rod 14. This is due to the fact that the traveling stroke of the pedal rod 14 does not reach the boost limit point of the booster 2 so that it can continue.

The state in which the pedal 1 is continuously operated so that the movement of the pedal rod 14 reaches the power limit point of the booster 2 is expressed as the (b) state shown in FIG.

Such a state is a time point at which the stopper 12 starts to move from the housing 11 together with the pedal rod 14, and the main spring 16 and the sub spring 19 constituting the damper unit 15 are compressed as much as possible. It is a state.

In addition, the ECU drives the solenoid 20 so that the hook 13c comes out of the locking groove 11c of the housing 11 to switch to the restraint state between the stopper 12 and the housing 11.

That is, when the rod of the driven solenoid 20 pulls the support plate 21, the support plate 21 is removed from the housing 11 while compressing the pressure spring 22, so that the load on the stopper 12 is removed. .

As a result, the hook 13c is released from the locking groove 11c of the housing 11, and the stopper 12 is completely separated from the housing 11, and an extension inserted into the chamber 11a of the housing 11 is provided. Coupling end 13 is in close contact with the pedal rod (14).

As can be seen in the (a) and (b) state shown in Figure 2 as described above, the operating force of the pedal (1) is transmitted to the booster (2) with a small force through the pedal simulator (10), the booster ( 2) implements a large power ratio, the booster (2) is characterized by forming a very small change in the input load.

At this time, when the pedal 1 is released, the pedal simulator 10 returns to its initial state only by the action of the damper unit 15. That is, if the pedal rod 14 is not applied with the pedal release, the main spring 16 is compressed. ) And the sub-spring 19 retracts the pedal rod 14 while being tensioned, thereby realizing the initial state return performance without the need for a separate return means.

Then, when the pedal rod 14 continues to be pushed by the continuous stroke of the pedal 1, the stopper 12 exits the housing 11, which is represented by the (poly) state shown in FIG.

This state is a state in which braking is required even beyond the force limit point of the booster 2, which is the spring 16, 19 which is fully compressed by the load F applied from the pedal 1 being continuously applied to the pedal rod 14. Since the extension coupling end 13 portion is applied with force, the stopper 12 is pushed together in an integrated state with the pedal rod 14.

At this time, the stopper 12 is moved to the chamber 11a of the housing 11 while sliding with respect to the support plate 21, so that the forward movement of the pedal rod 14 is not restrained.

Since the booster 2 continuously generates a constant output with little change with respect to the input due to the forward movement of the pedal rod 14 as described above, the operation of the booster 2 maintains the braking state.

At this time, the return of the initial state of the pedal rod 14 should be prior to the return of the stopper 12 from which the stopper 12 exits the housing 11, which is provided between the housing 11 and the stopper 12. Implemented by the action of the return spring 23.

That is, when the load F applied to the pedal rod 14 is removed, the return spring 23, which has been tensioned by the movement of the stopper 12, is again compressed and the stopper 12 is inserted into the chamber 11a of the housing 11. Pulled in, the pedal rod 14 is pushed back with the stopper 12 being pulled away from the booster 2.

Subsequently, the stopper 12 is moved until the hook 13c is fitted into the locking groove 11c of the housing 11, and then when the stopper 12 is constrained to the housing 11, the pedal rod 14 is moved. Is completely returned to the initial position through the damper unit 15 which is tensioned after being compressed.

The initial state return of the pedal rod 14 through the damper unit 15 is performed by the pedal rod 14 through the springs 16 and 19 as the main spring 16 and the sub spring 19 are compressed. Is implemented because is retracted.

As described above, the (c) state shown in FIG. 2 is the same as when fail-safe is implemented, that is, the input of the pedal 1 transmitted to the pedal simulator 10 is the pedal rod 14. Since it is transmitted to the booster (2) side as it is, the booster (2) receiving the force F applied by the pedal rod 14 operates the master cylinder even beyond the force limit point to implement a braking state.

At this time, the ECU drives the solenoid 20 so that the stopper 12 is separated from the housing 11 as described above, so that the forward movement of the pedal rod 14 is not restrained.

As described above, the actuator device according to the present embodiment is provided with a pedal simulator 10 having a damping function between the pedal 1 and the booster 2 having an increased power ratio, thereby providing a feeling of pedaling that follows hydraulic hysteresis characteristics. In addition to blocking the vibration flowing into the booster (2), the input of the pedal (1) can also be transmitted to the booster (2) in the event of a failure of the booster (2) fail-safe (Fail- Safe) can be implemented.

1 is a block diagram of a regenerative braking actuator device according to the present invention

2 is an operation of the regenerative braking actuator device according to the present invention

    <Description of the symbols for the main parts of the drawings>

1: pedal 2: booster

3: operation rod 4: poppet valve

5: plunger 6: reaction disc

7: push rod

10: pedal simulator 11: housing

11a, 13a: Chamber 11b: Extended End

11c: Hanging groove 11d, 13d: Slope

12: stopper

13: extension coupling end 13b: opening hole

13c Hook 14: Pedal Rod

15 damper 16 main spring

17,18: 1st and 2nd fixed end 19: subspring

20: solenoid 21: support plate

22: pressure spring 23: return spring

Claims (7)

Including the pedal simulator in the path of the pedal's response input to the booster side, The pedal simulator includes: a pedal rod configured to apply an input load to the booster in a forward movement in association with a stroke of the pedal; A damper unit that is compressed when the pedal rod is advanced to implement a pedal feeling like hydraulic pressure; The stopper is provided with a stopper that delimits the forward movement stroke of the pedal rod up to the boost limit point of the booster, and releases the engagement with the housing into which the pedal rod is inserted so that the pedal rod is moved forward with the pedal rod in a step beyond the boost limit point. Assist unit; Regenerative braking actuator device comprising a. The structure of claim 1, wherein the booster narrows the contact area between the plunger and the reaction disk forming the poppet valve operated through the operation rod, and the contact area of the push rod transmitting the load toward the reaction disk and the master cylinder is increased. Regenerative braking actuator device characterized in that. 2. The damper unit of claim 1, wherein the damper unit wraps the pedal rod inserted to move forward and backward in the housing, and supports the main spring at both ends of the inner space of the housing. A regenerative braking actuator device comprising a pair of first and second fixed ends and a sub-spring that is spaced apart from the main spring and is elastically supported. The method according to claim 1, wherein the stopper is inserted into the housing inserted so that the pedal rod is moved forward and backward, and forms an extension coupling end through which the opening hole through which the pedal rod penetrates, and is spaced apart from the extension coupling end to A regenerative braking actuator having a hook fitted into a locking groove drilled in the housing, wherein a return spring tensioned when the stopper is advanced is positioned at an extension end forming a wall portion of one end of the housing and a forming portion of the hook. Device. The regenerative braking actuator device according to claim 4, wherein the opening hole has a rectangular shape. 5. The stopper of claim 4, wherein the stopper is restrained or released from the housing through an ECU controlled solenoid, and a support plate between the solenoid and the stopper is fixed to the solenoid to push the stopper toward a load through a pressure spring. A regenerative braking actuator device. The regenerative braking actuator device according to claim 6, wherein a roller is provided between the stopper and the support plate.
KR1020090032174A 2009-04-14 2009-04-14 Regenerative braking actuator apparatus KR20100113725A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105774788A (en) * 2016-03-04 2016-07-20 吉林大学 Electric power-assisted braking system with composite functions
US9751517B2 (en) 2015-03-23 2017-09-05 Hyundai Motor Company Brake control method for hybrid electric vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9751517B2 (en) 2015-03-23 2017-09-05 Hyundai Motor Company Brake control method for hybrid electric vehicle
CN105774788A (en) * 2016-03-04 2016-07-20 吉林大学 Electric power-assisted braking system with composite functions

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